ZTE WF 600T Series Sb 2000 Manual 20130620

User Manual: ZTE sb-2000 manual-20130620

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SB Series

USER MANUAL
PURE SINE WAVE INVERTER / CHARGER COMBI
WITH SHARING / SUPPORT / GENERATOR

Inverter / Charger COMBI

Contents
1

Important Safety Instructions…………………………………………………………… 3
1-1

Warnings And Symbols…………………………………………………………… 3

1-2

Use For Intended Purpose General Safety Precautions………………………

1-3

Other Safety Notes And Installation Precautions………………………………

1-4

Warning Regarding The Use Of Batteries………………………………………

Functional Characteristics Introduction………………………………………………

2-1

System…………………………………………………….………………………..

2-2

Electrical Performance……………………………………………………………. 6

2-3

Mechanical Drawing………………………………………………………………. 8

2-4

LCD Panel Mechanical Drawing…………………………………………………

How It Works……………………………………………………………………………….

3-1

Battery Charger Introduction……………………………………………………..

3-2

Inverter Introduction……………………………………………………………….

3-3

Operation Modes…………………………………………………………………..

3-4

Equalization Batteries…....……………………………………………………….. 19

Operation……………………………………………………………………………………

4-1

Power “ON” ……………...………………………………………………………...

4-2

Power “OFF………………………………………………………………………... 24

4-3

Selectable “CHR. Power ON” mode…………………………………………….. 24

4-4

Protections…………………………………………………………………………. 24

Installation And Maintenance……………………………………………………………

5-1

Unpacking...……………………………………...………………………………..

5-2

Front Panel...……………………………………...……………………………….

5-3

Move the LCD Control Panel Place..………...………………………………..

34
1

Inverter / Charger COMBI

5-4

Rear Panel...……………………………………...………………………………..

5-5

Installation Drawing...……………………………………...……………………...

LCD Remote Control Panel – Display & Setup...………………..…………………… 40
6-1

LCD Panel Indications…………………………………………………………….

6-2

LCD Rear View Introduction……………………………………………………...

6-3

Startup Sequence and Standby Status………………………………………….

6-4

Setup Menu – Operation and Instructions Entering Setup Menu…………….

RS-232 Communication and Operation...……………………………………………..

7-1

Operation of RS-232 serial port………………………………………………….

7-2

Example of the RS232 Operation………………………………………………..

Trouble Shooting…………………………………………………………………………..

8-1

Fault Indicator……………………………………………………………………… 63

8-2

Warranty……………………………………………………………………………. 64

Inverter / Charger COMBI
1 Important Safety Instructions
1.1 Warnings And Symbols
Safety instructions and warnings are marked in this manual by the following
pictograms：
Supplementary information on operating the device.
CAUTION
Safety instruction: Failure to observe this instruction can cause material
damage and impair the function of the device.
CAUTION
Safety instruction relating to a danger from an electrical current or voltage.
Failure to observe this instruction can cause material damage and personal
injury and impair the function of the device.
WARNING!
SAVE THESE INSTRUCTIONS – This manual contains important
instructions that should be followed during installation and maintenance of
the Combi unit.

1.2 Use For Intended Purpose General Safety Precautions
The Combi unit is constructed as per the applicable safety-technical guidelines.
 For the charging of lead acid batteries and the supply of users attached to these
batteries, in permanent systems.
 For the conversion of a DC voltage from a battery to and AC voltage.
 Connected to a dedicated double pole circuit breaker and earth leakage switch.
 With a fuse, protection the wiring between Combi unit and battery.
 In a technical correct condition.
 Do not expose the Combi unit to rain, snow, spray or dust. To reduce the risk of fire
hazard, do not cover or obstruct the ventilation openings and. do not install the
Combi unit in a zero-clearance compartment.
 To avoid the risk of fire and electric shock, make sure that the existing wiring is in
good electrical condition; and that the wire size is not undersized.
Do not operate the Combi unit with damaged or substandard wiring.
 Depending on the use, the AC output of the Combi unit may require user installed
breaker or fusing. For telecom use, a GFCI has not been provided. The Combi unit
incorporates standard AC short circuit protection.
 The following precautions should be taken when working on the Inverter Charger:
 Remove watches, rings, or other metal objects.
 Use tools with insulated handles.
 Wear rubber gloves and boots.
3

Inverter / Charger COMBI
1.3 Other Safety Notes And Installation Precautions






Upon receipt, examine the shipment box for damage. Notify the carrier immediately,
before opening, if damage is evident.
Do not operate near water or in excessive humidity.
Do not open or disassemble the Combi unit, warranty may be voided.
The DC and AC side connections should be firm and tight.
Grounding: Reliable grounding of rack-mounted equipment should be maintained.



Do not drop a metal tool on the battery. The resulting spark or short-circuit on the
battery or on the other electrical part may cause an explosion.



Wiring: Adequate input power must be supplied to the Combi unit for proper use;
correct wiring sizes must be ensured.



Do not operate the Combi unit close to combustible gas or open fire.



Temperature: The Combi unit should be operated in an ambient temperature range
of -20 to 40°C or else the output efficiency may be affected. Air flow to the Combi
unit must not be restricted.



In case of fire, you must use the fire extinguisher which is appropriate for electrical
equipment.



Short circuiting or reversing polarity will lead to serious damage to batteries, Combi
unit and the wiring. Fuses between the batteries and the Combi unit can not prevent
damage caused by reversed polarity and the warranty will be void.



Do not work on Combi unit or system if it is still connected to a power source. Only
allow changes in your electrical system to be carried out by qualified electricians.



Check the wiring and connections at least once a year. Defects such as loose
connections, burned cables etc. must be corrected immediately.



Do not touch the equipment when wet or if your hands are clammy.



The Combi unit products are not for applications in any medical equipment intended.
The cabinet of the Combi unit must not be opened. There are no serviceable
parts inside the cabinet. Only qualified, authorized and trained electrician
installers are authorized to open the connection compartment.

1.4 Warning Regarding The Use Of Batteries
Excessive battery discharge and/or high charging voltage can cause serious damage to
batteries. Do not exceed the recommended limits of discharge level of your batteries.
Avoid short circuiting batteries, as this may result in explosion and fire hazard.
Installation of the batteries and adjustments of the Combi unit should only be undertaken
by authorized personnel!

Inverter / Charger COMBI
2 Functional Characteristics Introduction
2.1 System
The SB Series is a Combi inverter / charger system, designed with advanced power
electronic and digital signal processor technology offering the following features:
 The Combi unit is equipped with a self diagnosis microprocessor that is able to
identify and show all failure messages on the LED/LCD display, with associated
visual/audio alarms.
 Can use parallel with the grid AC.
 Battery charger current 100A max. @12VDC / 50A max. @24VDC
 Pure sine wave output to operate higher-end electronic equipment 5A max second
charger.
 Equalization function for the batteries.
 Built in 25A rated bypass switch
 Power sharing functions
 Intelligent software for power management
 Hard-wire connection model option
 Loading and temperature controlled cooling fan
 Fan aging, failure, disconnection and blockage alarm
 Local and remote management and control
 RS-232 and CAN Bus communication
 CAN Bus LCD remote control panel
 By a dry contact terminal
 Advanced protection features :
DC input over/under voltage protection
Internal over temperature, battery over temperature and heat sink over temperature
DC input reverse polarity protection (Fuse)
Inverter AC output overload protection
Inverter AC output short circuit protection
AC input short circuit protection: Breaker (30Amp)
AC input under voltage protection

Inverter / Charger COMBI
2.2 Electrical Performance
SB-2000 Inverter / Charger Specification
Electrical

Input
Characteristics

Specification

Model No.

Item

SB2000-112

SB2000-124

SB2000-212

SB2000-224

Nominal Voltage

12 VDC

24 VDC

12 VDC

24 VDC

Input Voltage Range

10.5 ~ 16 VDC

21 ~ 32 VDC

10.5 ~ 16 VDC

21 ~ 32 VDC

Input Over-Voltage
Protection

15 ~ 16 VDC

30 ~ 32 VDC

15 ~ 16 VDC

30 ~ 32 VDC

Input Under-Voltage
Protection

10.5 ~ 11.5 VDC

21 ~ 23 VDC

10.5 ~ 11.5 VDC

21 ~ 23 VDC

No Load Current

2.5 A

Stand-By Current

1.5 A

0.75 A

1.5 A

0.75 A

Continuous Output
Power(Resistive
load)

2000 W

Surge Power
(Resistive load)

Load 101%~115% (3 Min)

Frequency

47 ~ 63 Hz +/- 0.01% (User-selectable)

4000 W

Output
Characteristics

Output Voltage
Efficiency (Full
Load)

115 VAC (100~120 VAC)+/-5%

>84% (At DC 12V)

>86% (At DC 24V) >85% (At DC 12V)

Short-Circuit
Protection
Output Waveform

AC Input /
Output Terminal

Protection

AC Input
Characteristics

>88% (At DC 24V)

Yes , Ipk
Pure Sine Wave (THD < 5%)

Pure Sine Wave (THD < 3%)

AC Input

50 A MAX.

AC Output

50 A MAX.

INV. AC Output

25 A MAX.

DC Input Protection

Over / Under Voltage, Reverse Polarity (Internal Fuse)

AC Output
Protection

Short-Circuit, Overload

AC Input Protection

30 Amp Circuit Breaker

Temperature
protection

Shutdown

Battery Temperature
protection

By a RJ-11 connector to battery Temperature sensor

Nominal Voltage /
Frequency

115 VAC / 60Hz

230 VAC / 50Hz

Input Voltage Range

90 ~ 130 VAC

180 ~ 260 VAC

Input Frequency
Range
Nominal Current

230 VAC (200~240 VAC)+/-3%

47 ~ 63 Hz
15A

7.4A

Inverter / Charger COMBI
Electrical

Specification

Model No.

Efficiency (Full Load)

>85%

>87%

Power Factor
Correction(PFC)

>0.98 (40% Load)

Charging Current
Range

20 ~ 100A

10~50A

Second Charger
Output

DC Output
Characteristics

20 ~ 100A

10~50A

5A , 3-Stage Battery Chargers

Max. Output Voltage

14.8 VDC

29.6 VDC

14.8 VDC

29.6 VDC

Battery Temperature
Compensation

-25 mV per ℃

-50 mV per ℃

-25 mV per ℃

-50 mV per ℃

Bulk Voltage

14.4 V

28.8 V

14.4 V

28.8 V

Absorption Voltage

14.4 V

28.8 V

14.4 V

28.8 V

Float Voltage

13.5 V

27 V

13.5 V

27 V

Note. Charger Voltage @Battery Type Setting “Standard”, Temperature@ 25℃
Equalization

Max. output Voltage

16VDC

32VDC

16VDC

32VDC

Characteristics

Max. output Current

10A

LCD Panel

2 Lines LCD Panel with keypad for navigation and Red / Orange / Green LED

Remote Control
Terminal

Controls the inverter ON / OFF operation

Dry Contact Terminal

By a relay

Bypass Relay

Relay Specification

25 Amp / 250 VAC

Full Load
Operating
Temperature
Range

-25 ℃ ~ 40 ℃

Power de-rating

50 W / ℃, 41~60 ℃

Storage

-30 ℃~70 ℃

Signal and
Control

Operating
Humidity Range
Fan Operation
and Indicator

0~93% Non-condensing
Failure Indication

Buzzer alarm

Switches On/ Off

The fan does operate in load and internal temperature control related PWM
variable speed control

Sharing Mode

Inverter mode / Charger mode / Power sharing (Generator mains support
function / Power support ) / Charger Sharing

Power Sharing
Function
AC Input Current

Ground Relay
Mechanical
Specification

Safety and EMS

10 ~ 50A(User-selectable)

3 ~ 25A (User-selectable)

Ground relay included for connection of neutral of inverter to ground only at inverter mode.
Standard disable
Size (W x H x D)

13.03”x6.14”x18.3” (331mmX156mmX465mm)

Weight

10.5 Kg (23.1 Lbs)

Safety Standards

Meet EN60950-1

EMC Standards

FCC Class A

EN55022:1998+A1:2000+A2:2003 Class A
EN55024:1997+A1:2001+A2:2003
EN61000-3-2:2006 Class A
EN61000-3-3:1995+A1:2001

Inverter / Charger COMBI
2.3 Mechanical Drawings

Inverter / Charger COMBI
SB Series Inverter / Charger Combi Ordering Information
Model
Number
SB2000-112
SB2000-124
SB2000-212
SB2000-224

Output Voltage
Input
Voltage Nominal
Range
12 VDC
24 VDC
12 VDC
24 VDC

110VAC
110VAC
230VAC
230VAC

Frequency
Range

AC Input

47~63 Hz
47~63 Hz
47~63 Hz
47~63 Hz

90 ~ 130 VAC
90 ~ 130 VAC
180 ~ 260 VAC
180 ~ 260 VAC

100~120 VAC
100~120 VAC
200~240 VAC
200~240 VAC

Charger
Current Max. voltage Max.
100A
50A
100A
50A

14.8 VDC
29.6VDC
14.8 VDC
29.6VDC

2.4 LCD Panel Mechanical Drawing:

3 How It Works
This chapter describes the various applications of the Combi unit series from COTEK.
The Combi unit is a battery charger, a pure sine wave inverter and an AC transfer system in
one compact enclosure. The three-step Plus charging method guarantees that the batteries
are always charged 100% The pure sine wave inverter assures that the AC output voltage is
perfectly reliable even when limited external AC power is available. External AC power can be
supplied by a public grid or a generator. DC power can be delivered by charged batteries.

3.1 Battery Charger Introduction
The built-in battery charger is electronically controlled. It is designed for optimal
recharging of both wet cell, gel cell and AGM deep cycle batteries. Battery charging is
accomplished in three automatic stages: BULK, ABSORPTION and FLOAT. With an
external AC source connected, the Combi unit charger also serves the functions of an
AC to DC converter to supply DC loads which are connected to the battery. Simple,
automatic operation is made possible by the microprocessor that is the brain of the
inverter/charger Combination. In most cases, the unit is left on and no attention or
maintenance is required.

Inverter / Charger COMBI

Fig 1: Three step charge system
3.1.1

Three step Plus charge system
See fig 1. The first step of the three step Plus charge system is the BULK phase,
in which the output current of the charger is 100%, and the greater part of the
capacity of the battery is rapidly charged. The current charges the batteries and
gradually the voltage rises to the absorption voltage of 14.4V (12V models) or
28.8V (24V models) @ 25°C / 77°F.
The duration of this phase depends on the ration of battery to charger capacity,
and naturally also on the degree to which the batteries were discharged to begin
with.
The bulk phase is followed by the absorption phase. Absorption charging starts
when the voltage on the batteries has reached 14.4V (12V models) / 28.8V (24V
models) @ 25°C / 77°F, and ends when the battery is completely full. Battery
voltage remains constant at 14.25V (12V models) / 28.5V (24V models) @ 25°C
/ 77°F throughout this stage, and the charge current depends on the degree to
which the battery was initially discharged, the battery type, the ambient
temperature, and so on. With a wet cell battery this stage lasts some four hours,
with gel and AGM around three. Once the battery is 100% full, the charger
automatically switches over to the float phase. (see Fig 12.)
During the float phase the Combi unit switches to 13.5V (12V models) or 27
(24V models) @ 25°C / 77°F and stabilizes this voltage to maintain the batteries
in an optimum condition. Connected DC-loads are powered directly by the
charger. If the load is higher than charger capacity, the required additional power
comes from the battery, which will be progressively discharged until the charger

Inverter / Charger COMBI
automatically switches back to the bulk phase. Once consumption decreases,
the charger goes back to normal operation of the three-step charge system.
As the Combi unit is equipped with a three-step Plus charge system, the
batteries can also remain connected to the Combi unit in winter. One hour every
12 days the charger automatically switches to absorption to keep the battery
running properly and prolong its life span. The three-step Plus charge system is
also safe for all the connected equipment.
3.1.2

Temperature compensated charging
The Combi unit is delivered with a battery temperature sensor. By installing this
battery temperature sensor the charge voltages are automatically adapted for
deviating temperatures.

Fig 2 : Temperature compensated charging
See fig 2. When the battery temperature is low, the charge voltage increases.
On the other hand, when the battery temperature is high, the charge voltage is
decreased. Over charge and gassing are prevented this way. This will extend
the life of your batteries.
3.1.3

Connection of a second battery
The Combi unit is equipped with second charge output which can be used to
give a maintenance charge to a small battery set like a starter battery Maximum
output current: 5 Amps.
Output voltage:14.4V @ 12V Model , 28.8V @ 24V Model , three-step, user can
set ON or OFF.
11

Inverter / Charger COMBI
3.2 Inverter Introduction
3.2.1

General
The inverter provides voltage and frequency regulated AC power from a battery
bank. Fast acting electronic circuits protect the inverter against extreme
overloads, low and high battery voltage , overheating and short circuit of the
inverter.
Considerable momentary surge power is available for starting-up electric motors.
A built in power saving feature can reduce battery power consumption when the
inverter is unloaded.

3.2.2

Power saving mode (selectable)
In the inverter mode the Combi unit has a built-in automatic power saving feature
that reduces battery power consumption when no load is present on the “INV.
AC output”. Response from idle is instant, eight modes can be set by means of
DIP-switches or LCD remote control.

3.3 Operation Modes
The Combi unit is not just a Combination of an inverter and a battery charger. It has
many additional features which can be used to increase the total available AC power,
even when external AC power is limited.
3.3.1

Basic operation
When there is no external “AC input” power available, the inverter of the Combi
unit provides AC power on the “INV. AC output” output from the batteries. There
is no AC power available on the “AC output”. See fig 3

Fig 3 : Inverter mode
When external AC power comes available, the transfer relay switches on. See fig
4. Both outputs as well as the battery charger are supplied by the external AC
power. The batteries are recharged now.

Inverter / Charger COMBI

Fig 4 : Charger mode
3.3.2

Transfer Switch And Connector on The Front
The Combi unit has two AC-outputs available:


INV. AC output: The “INV. AC output” output switches between the AC-input
and the output of the inverter. The AC input has the highest priority. In
principle, AC-power is always available on this output. However during a
switchover the loads connected to this output are not supplied with ACpower for a very short period of time (short break). It is the ideal output for
loads that need AC-power permanently like personal computers, interior
lighting and the refrigerator.



AC output: This output is always internally connected to the AC-input. It is
therefore only available when an external AC-source like shore power, a
generator or an outlet is present. Larger loads like a hot water boiler, electric
cooking appliance or washing machine should be connected to this output .
See fig 5.

Fig 5 : AC Input / Output contact
13

Inverter / Charger COMBI
3.3.3

Power sharing function (selectable)
If the available power at the AC-input is limited, and the load connected to the
AC output increases, the external AC circuit breaker may trip if nothing is done.
To avoid this, the Combi unit can automatically reduce the battery charger output,
and thus the AC power consumption. This Power sharing feature constantly
senses the incoming AC current which is used to supply both the battery charger
and the appliances connected to the AC outputs.
The Power Sharing level should be set to match the value of the external circuit
breaker, which protects the incoming AC power. For instance, when the external
AC power is limited by a 10A circuit breaker or fuse, the Power Sharing level
must be set to 10A.

Fig 6 : Power Sharing Function I
Here the Power Sharing level is set to a 10 Amps while the AC outputs consume
a total of 2 + 5 = 7 Amps. This means that only 10 – 7 = 3 Amps is left over for
charging. With 12V batteries 230 VAC this will result in a maximum charge current
of approx. 45A DC.
The Power Sharing level can be set by means of the DIP-switches or LCD remote
control locally on the Combi unit
When the total connected AC load reaches the level of the Power Sharing setting
(10A), there will be no power left over to charge the battery. This means that the
charge current of the Combi unit will be reduced to 0A. See fig 7.

Inverter / Charger COMBI

Fig 7 : Power Sharing Function II
3.3.4

Generator function (selectable)
If the demand for AC power still increases, the external AC circuit breaker may
still trip if nothing is done. This problem can be solved by the Generator function.
If the total demand for energy exceeds the maximum external power supply,
energy can be added to the “AC outputs” and “INV.AC Output” by means of the
inverter. This appliance can be automatically connected in parallel with the
external power supply.

Fig 8 : Generator Function
See fig 8. Here the AC-input is still limited to 10 Amps. This is not enough to
supply the total load (6 + 11A = 17A) connected to the AC outputs.
When the Generator function is enabled, the inverter will supply the remaining
17 – 10 = 7A. This means that the restricted amount of external AC power will be
compensated by energy which is stored in the batteries.
Later, when the AC load has dropped below the setting of the Power sharing
15

Inverter / Charger COMBI
function again, the battery charger of the Combi unit will commence to recharge
the batteries.
For safety unit the transfer relay is immediately switched off when
incoming AC power fails in operation so that there will never be a high
voltage on the shore cable inlet when it is not connected.
3.3.5

Support function (selectable)
As explained above, when the Generator function is enabled, the inverter will
operate in parallel with the external AC power source. This means that energy
from the batteries is added to the AC-output only. Under no circumstance AC
power from the inverter can be fed back into the AC grid. This may mean that in
some situations the use of the Generator / Support function is not allowed.
Please acquaint yourself with local regulations on this issue. Never use the
Generator function if this is not allowed!
Even if the use of the Generator function is not allowed, it is still possible to
supply more energy than the external AC sourced can deliver This can be
achieved by using the support function.

Fig 9: Support function
See fig 9. The AC input is still limited to 6Amps. This is not enough to supply the
total load (6 + 9A = 15A) connected to the AC outputs.
Now when the support function is enabled, the transfer relay will open. When
opened, the external power source will deliver 6Amps to supply the load
connected to the “AC output” output only, while the inverter will deliver 9Amps for
the load connected to the “INV. AC output” .
If the power consumption of the “AC output” output exceeds the
setting of the support function, the external AC fuse or circuit breaker
will still trip
16

Inverter / Charger COMBI
3.3.6

Support and Generator function (selectable)
If user will support function and generator function both simultaneously enable.
The Combi unit inverter will operate in parallel with the external AC power
source, and when not enough to supply the total load connected to the “AC
output” and “INV. AC output”. The transfer relay will open.

Fig 10 : Generator and support function
See fig 10. The AC input is still limited to 6 Amps. If the demand for AC power
still increases, the external AC circuit breaker may still trip. The inverter will
automatically to compensated by energy which is stored in the batteries.
But when AC power still increases. This is not enough to the total load ( 7 + 9A =
16A ) connected to the AC outputs. The transfer relay will open.
3.3.7

Charger sharing (selectable)
The Combi unit used “CHR.mode” startup. When external AC power comes
available, the transfer relay switches ON. The Combi unit is constantly senses
the AC power current witch is used to supply both the battery charger and the
load Connected to the AC output.

Fig 11 : Charger Sharing
17

Inverter / Charger COMBI
See fig 11. The AC input is still limited to 10Amps. Supply the total load ( 5 + 2A =
7A ) connected to the AC outputs. That only 10 – 7A = 3Amps is left over or
sharing, if the AC outputs load increases more 10 Amps. The transfer relay will
open.
When opened, the AC power will deliver 5 Amps to supply the load connected to
the “AC output” only. But the inverter not to supply 2Amps load connected to the
“INV. AC output”.
As explained above operation must will sharing function enable.

Fig 12. Charge characteristic of the three – step plus charging method. (@25℃ / 77℉)
3.3.8
Function

Summary of the power sharing

What is it used for ?
The sharing level should be set to match the value of the external circuit
Sharing
breaker, then to protects the incoming AC power.
Then AC input not enough to supply the total load connected to the AC
Generator outputs. The appliance can be automatically compensated by energy which is
stored in the batteries.
When AC input not enough to supply the total load connected to the AC
Support
outputs, the transfer relay will open.
When external AC power comes available. The Combi unit to charge batteries
Charger
only.

Support

Sharing

Generator

Selectable Function

Charger

6A
7A

1
1

6 Amps

0
6 Amps

1
6A

6 Amps

1
1

6 Amps

1
6A

6 Amps

1
6 Amps

Output (I1)

6 Amps

limited

Iac current

Synchronizatio
n

AC input

Output (I2)

INV. AC

AC Output (LOAD)

MAX.

Current (I3)

Charge

45A

20~100A

45A

20~100A

(Selectable)

Charge

200A

Discharger

Battery current (Approx.)

OPEN

COLSE

OPEN

Relay

Transfer

NG (I1>6A)

NG
(I1+I2+I3>6A)

NG (I1>6A)

NG
(I1+I2+I3>15A)

NG
(I1+I2+I3>6A)

Circuit breaker

External AC

Inverter / Charger COMBI

Note. “0” is Disable / “1” is Enable / “X” is Don’t care / Current @Batteries 12VDC , 230VAC Model

Inverter / Charger COMBI
3.4

Equalization Batteries
3.4.1 Construction of Battery Cells: A Lead Acid battery consists of a number of 2 V
nominal cells (actual voltage of the cell is 2.105 V) that are connected in series e.g. a
12 V nominal battery will have six, 2 V nominal cells in series (actual voltage of the 6
cells will be 2.105 x 6 = 12.63 V). Each 2 V nominal cell in this battery consists of an
independent enclosed compartment that has Positive and Negative Plates (also
called Electrodes) dipped in electrolyte that is composed of diluted Sulphuric Acid –
solution of 33.5% v/v Sulphuric Acid and water. In a fully charged battery, the
Positive Plate is in the form of Lead Dioxide, the Negative Plate is in the form of
Sponge Lead and the Sulphuric Acid in the electrolyte has the maximum
concentration of 33.5% v/v .
3.4.2 Electrical power in the Lead Acid Battery is produced by reversible electrochemical reactions as follows:
 During discharging, the Sulphuric Acid in the electrolyte reacts with the Positive
and Negative plates resulting in conversion of the active materials in both the two
plates (Lead Dioxide on the Positive plate and Sponge Lead on the Negative
plate) to soft Lead Sulfate crystals. At the same time, electrons are released that
create the electrical current that flows to the load. The concentration of Sulphuric
Acid in the electrolyte is reduced as the battery gets discharged (the electrolyte
becomes pure water when the battery is fully discharged).


During charging, reverse electrochemical reactions take place. Under the
influence of the charging voltage fed to the battery by the external battery charger
/ charge controller, electrons are fed back to the battery and the soft Lead Sulfate
crystals at the Positive and Negative Plates are converted back to Lead Dioxide
at the Positive Plate and Sponge Lead at the Negative Plate and the
concentration of Sulphuric Acid is restored (will revert to 33.5% v/v when the
battery is fully charged).

3.4.3 Gassing during Charging: During charging, the battery is required to be charged in
a controlled manner in the final Absorption Stage (2.4 V per cell at 25 º C / 77 º F or
14.4 V for a 12 V battery at 25 º C / 77 º F) that restores the last 20% to 30% of the
capacity. On successful completion of this stage of charging, the Lead Sulfate at the
Positive and Negative Plates should have fully converted back to Lead Dioxide at the
Positive Plate and Sponge Lead at the Negative Plate. Any further charging at this
voltage or higher than this voltage results in electrolysis of water in the electrolyte to
Hydrogen and Oxygen and this undesirable condition contributes to waste of energy.
This process is known as "gassing". Gassing is also produced during the timed
Equalization Stage when the battery is intentionally overcharged (2.5 to 2.7 V per
cell / 15 to 16 V for 12 V batteries) to equalize the cells and remove stratification.

Inverter / Charger COMBI
3.4.4 Necessity for Equalizing Batteries: For proper health and long life of a Lead Acid
battery, it is required to undergo an Equalization Stage during the charging process
to prevent / reduce the following undesirable effects:


Sulfation: If the charging process is not complete due to the inability of the
charger to provide the required voltage levels or if the battery is left uncharged
for a long duration of time, the Lead Sulfate crystals on the Positive and Negative
plates that are formed during discharging / self discharge are not fully converted
back to Lead Dioxide on the Positive plate and Sponge Lead on the Negative
plate and get hardened and are difficult to dislodge through normal charging.
These crystals are non conducting and hence, introduce increased internal
resistance in the battery. This increased internal resistance introduces internal
voltage drop during charging and discharging. Voltage drop during charging
results in overheating and undercharging and formation of more Lead Sulfate
crystals. Voltage drop on discharging results in overheating and excessive
voltage drop in the terminal voltage of the battery. Overall, this results in poor
performance of the battery. To dislodge these hardened Lead Sulfate crystals,
some chargers are designed to detect a sulfated condition at the start of the
charging process and go through an initial De-sulfation Mode that sends high
frequency, high voltage pulses at the natural oscillation frequency of the crystals
to dislodge the hardened crystals. Sulfation may also be reduced partially by the
stirring / mixing action of the electrolyte due to gassing and bubbling because of
intentional overcharging during the Equalization Stage.

3.4.5 Electrolyte Stratification: Electrolyte stratification can occur in all types of flooded
batteries. As the battery is discharged and charged, the concentration of acid
becomes higher at the bottom of the cell and becomes lower at the top of the cell.
The low acid concentration reduces capacity at the top of the plates, and the high
acid concentration accelerates corrosion at the bottom of the plates and shortens the
battery life. Stratification can be minimized by the Equalization Stage by raising the
charging voltage so that the increased gassing and bubbling agitates / stirs the
electrolyte and ensures that the electrolyte has uniform concentration from top to
bottom. The stirring action also helps to break up any Lead Sulfate crystals, which
may remain after normal charging.
3.4.6 Unequal charging of cells: During normal charging, temperature and chemical
imbalances prevent some cells from reaching full charge. As a battery is discharged,
the cells with the lower voltage will be drained further than the cells at the higher
voltage. When recharged, the cells with the higher voltage will be fully charged
before the cells with the lower voltage. The more a battery is cycled, the more cell
voltage separation takes place. In a healthy battery, all the individual cells will have
the same voltage and same specific gravity. If there is a substantial difference in the
21

Inverter / Charger COMBI
cell voltages (0.2 V or more) and in the specific gravities (0.015 or more) of the
individual cells, the cells will require equalization. Equalizing batteries helps to bring
all the cells of a battery to the same voltage. During the Equalization Stage, fully
charged cells will dissipate the charging energy by gassing while incompletely
charged cells continue to charge.
3.4.7 Equalization Stage: Normally, only the vented / wet cell / flooded batteries are
equalized. Some sealed AGM batteries may be equalized if recommended by the
manufacturer (e.g. Life Line brand of sealed, AGM batteries). The Equalization Stage
is carried out only after completion of the Bulk and Absorption Stages. During the
Equalization Stage, the battery is intentionally held above the Gassing Voltage for a
specified period of time that is normally proportional to the depth of discharge of the
battery or to the AH capacity of the battery.


Recommendations of the battery manufacturer are to be followed for equalizing
the batteries as the equalization voltage, time and frequency will depend upon
the specific design of the battery. The Equalization Voltage will normally be in
the region of 2.5 to 2.7 V per cell at 25 º C / 77 º F e.g. 15 to 16 V for 12 V
batteries and 30 to 32 V for 24 V batteries. As a guide, a heavily used flooded
battery may need to be equalized once per month and a battery in light duty
service, every two to four months.(See fig13)

Fig 13. Equalization stage (@12V battery)
3.4.8 The Table below gives the Absorption, Float and Equalization voltage settings for
common batteries used :

Inverter / Charger COMBI
Battery
Type

Inverter
Voltage

Bulk
Voltage

Absorption
Voltage

Float
Voltage

Equalization
Voltage

(Lifeline brand)

12 VDC
24 VDC
12 VDC
24 VDC
12 VDC
24 VDC

14.1VDC
28.2VDC
14.6VDC
29.2VDC
14.3VDC
28.6VDC

13.6VDC
27.2VDC
13.4VDC
26.8VDC
13.1VDC
26.2VDC

NOTE!
NOTE!
15.5VDC
31VDC
15.5VDC
31VDC

AGM 2

12 VDC

14.5VDC

13.5VDC

NOTE!

24 VDC

29VDC

27VDC

NOTE!

12 VDC

12~16VDC

24 VDC

24~32VDC

Gel
Flooded
AGM 1
(East Penn/Deka/
Discover/Trojan brand )

Custom*
(To be selected by the
customer based on the
manufacturers’
recommendations, if
available)

*User can be setting the custom function voltage, but must use LCD Panel(See 6.4.4 for more
information).

NOTE! Gel and the AGM 2 Group (East Penn/ Deka
/Discover/Trojan brand) batteries are not equalized.
Hence, their Equalization Voltages are same as the
Absorption Voltages
When using the Custom setting, the Equalization voltage setting should
not allow voltage lower than the Absorption Voltage setting. Also, the
Equalization Voltage setting should not allow a setting higher than 2-volts (for
12V systems), or 4-volts (for 24V systems) above the Absorb Voltage setting.
3.4.9 Calculation of Equalization Charge Current: The Equalization Charge Current
should be a relatively low current of around 1% of the charge current of the battery.
Such a low current prevents an overcharge condition that results in excessive
gassing and excessive loss of water. Also the equalization charge current should
preferably be a variable value that is automatically set by the microcontroller as a
function of the degree of charge of the battery.
NOTE! Equalization Current is related to the charge current capacity of the
battery and is normally calculated at 1% of the charge current of the battery.
Hence, We has provided for the user to input the charge current capacity of
the battery being used.(See 6.4.4)
3.4.10 Calculation of Absorption and Equalization Times: Equalization is required to
be carried out after completion of the Bulk and Absorption Stages. It is preferred that
the time periods for the Absorption and Equalization Stages be proportional to the
discharged state of the battery. A more discharged battery will take longer time in the
Absorption and Equalization Stages. The discharged state of the battery will be
proportional to the time the charger remains in the Bulk Stage. Hence, a software
timer may be used to measure the time the charger is in the Bulk Stage and then
calculate and set the Absorption Stage and Equalization Stage Timers. Let the time
23

Inverter / Charger COMBI
taken in the Bulk Stage be designated by “Bulk Timer” and the calculated Absorption
Time by “Absorption Timer and the Equalization time by “Equalization Timer”. One of
the recommended logics for calculations is as follows(See Fig 13):


Absorption Timer = 0.5 x Bulk Timer



Equalization Timer = Absorption Timer + 1 Hour if T1 < 2 Hours, or



Equalization Timer = Absorption Timer + 2 Hours if 2< T1 < 4 Hours, or



Equalization Timer = Absorption Timer + 4 Hours if T1 > 4 Hours

4 Operation
4.1 Power “ON”
You use the remote control panel, and press the ON / OFF button on the front.
After switching on expect a five till ten second delay before the Combi unit activated.
If AC power is available on the AC input and within the specified limits, the Combi unit
will switch to Charger Mode and will commence to charge the batteries. At the same time
the internal transfer relay will pass the AC power to the AC output “INV. AC output”.
If the AC power from the external AC-source is unavailable or outside the specified limits,
the unit will come on as an inverter. Inverter overload protection, built-in idle mode
circuitry, transfer switching, sharing and battery charger regulation will all function
automatically.

4.2 Power “OFF”
Move the main switch to the “OFF” position to switch off the Combi unit. Or can you use
remote control panel, press the on/off button delay three second on the remote control
panel. The Combi unit stops and all the indicators go off. The “INV. AC output” is
disconnected and will become powerless.
WARNING!
Power OFF the Combi unit not cut off the connection to the batteries or the
AC-source. Therefore the “AC output” output is still active.

4.3 Selectable “CHR. Power ON” mode
When the main switch is set to the “ON” position, then to press LCD remote control
panel “ON / OFF” button. You can to setting change the “CHR. Power ON” mode. The
Combi unit is only able to work as a charger. This means that the inverter mode is
disabled. This setting is useful if you want to keep your batteries charged and maintained
in case you are away i.e. in the winter time. Now your batteries are spared when the
incoming AC-source fails in operation.See Chapter 6 for detailed operation instructions
of the remote panel.

Inverter / Charger COMBI
4.4 Protections
The Combi unit is protected against overload, short circuit, overheating and under and
over voltage. The user can detect failures from the remote control panels by means of
the indicators .See chapter 8 for explanation of this readout.

5 Installation And Maintenance
During installation and commissioning of the Combi unit, the Safety Guidelines & Measures
are applicable at all times. See chapter 1 of this manual.

5.1 Unpacking
In addition to the Combi unit the delivery includes:
 a battery temperature sensor.
 user’s manual.
After unpacking, check the contents for possible damage. Do not use the product if it is
damaged. If in doubt, contact your supplier.
Check from the identification label whether the battery voltage is the same as the DCinput voltage of the Combi unit (e.g. 24V battery set for a 24V input voltage). Also check
that the AC output voltage and output power of the Combi unit satisfies loading
requirements.

5.2 Front Panel

5.2.1

AC Input Breaker: (reference ①)
The AC input circuit breaker protects the Combi unit from overload. When an
overload or shirt circuit condition occurs, the circuit breaker trips and disconnects
the incoming AC power input. To reset it, push the circuit breaker button. The
cause of tripping should be ascertained and corrected before the unit is reset.
25

Inverter / Charger COMBI
5.2.2

Hard-Wire Installation (AC wiring connections terminal): (reference ②)
The AC wiring compartment is located on the front panel. Remove the AC wiring
compartment cover to gain access to the AC terminal.
WARNING!
Before you connect AC wiring to the terminals of compartment cover,
ensure to check the label in the compartment for correct
connections. Wrong connection will damage the Combi unit.

 AC input and AC output terminal

 Connect AC output and AC input wiring to the inverter terminals
Please use the following information as your reference:
Terminal
AC Output
AC Input
INV.
AC Output

Line (L)
Neutral (N)
Line (L)
Neutral (N)
Line (L)
Neutral (N)

Chassis Ground

Wire color

AC Current

inch

A.W.G

Black
White
Brown
Blue
Red
Yellow
Green / Yellow or
Bare copper

20~25A
25~30A
30~40A
40~55A
55~70

2
3.5
5.5
8
14

14
12
10
8
6

26~32 feet /
AWG# 12~14

Note. Please double check and review all the connections to
ensure that the wires are connected to the correct terminals and
that the connections are tight.
5.2.3

Chassis Ground: (reference ③)
WARNING!
The ground wire offers protection only if the cabinet of the Combi
unit is connected to the safety ground. Connect the chassis ground
terminal to the hull or the chassis.

Inverter / Charger COMBI
Refer to local regulations on these issues!
For safety purposes the neutral conductor (N) of the AC output must be
connected to the earth (PE / GND) when the Combi unit is in inverter operation.
When utility power is available on the AC input, and the Combi unit is in charger
mode, this connection must be disabled again.
In some applications automatic connection between the neutral conductor (N)
and earth (PE / GND) is not required or acceptable. Therefore the automatic
connection between the neutral conductor (N) and earth (PE / GND) is disabled
by default. (see fig 5.)
5.2.4

DIP Switch Setting: (reference④)
The Combi unit is provided with two groups of DIP-switches to adjust the
apparatus according to the specifications of the electrical installation. The DIPswitches are located in the front panel.

SWA
A1

Setting

Disable

50Hz

Pow40W

Pow80W

Pow100W

Pow120W

Pow160W

Pow180W

60Hz

Pow220W

Power Saving

Frequency

Setting

100V

OFF

200V

110V
220V
115V
230V
120V

240V
Output Voltage

Ground Relay

Reset

Power Saving: If you want to setting the Combi unit to power saving mode, to reduction
consumption from the batteries. This means when it detects a load that is
above setting value, it output power automatically on. By adjust DIP switch
SWA1,SWA2 and SWA3. Default is “Disable”.
Frequency: If you want to setting the Combi unit output power frequency of the inverter. By
adjust DIP switch SWA4. Default is “60Hz”@110VAC Model / “50Hz”@230VAC
Model .
Output Voltage: If you want to setting the Combi unit output power voltage of the inverter. By
adjust DIP switch SWA5 and SWA6.
Ground Relay: The function allows you to connect the Neutral conductor of the Combi unit to
the Safety Ground automatically when the Combi unit is working as an inverter.
This means if you to set adjust the DIP switch SWA7 to “ON”. The internal
Neutral of the inverter connected to the Safety Ground when the Combi unit is
working as an inverter and disconnected when incoming AC input power is
applied. Default is “OFF”.
Reset: If you want will the Combi unit reset to default set value of the DIP switch. By adjust DIP
switch SWA8.

Inverter / Charger COMBI
SWB
B1

Setting

Disable

10A

Disable

Gel

Enable

10A

15A

Enable

Flooded

16A

25A

AGM1

25A

30A

AGM2

0
Support

@230VAC

Generator

Setting
COMBI

Mode
CHR

Mode
Power ”ON”
Mode
Selection

@110VAC

Battery Type Selection

@110VAC

Sharing Current Limit

Power Sharing

DIP switch SWB3 and SWB4 to setting sharing current limit in 6A min.
But! user can to use LCD panel setting the current in 3A min.
Support: If you want to disable or enable the support function. See 3.3.5 for more information.
Default is “Enable”.
Generator: If you want to disable or enable the generator function. See 3.3.4 for more
information. Default is “Enable”.
Sharing Current Limit: If you want to setting limit the AC input current, Default is “6A”@230VAC
Model / “10A”@110VAC Model. See 3.3.3 for more information.
Sharing：If you want to disable or enable power sharing function. Default is “Enable”. See
3.3.3 for more information.
Battery Type Selection： The factory setting for the battery type is optimal for most
installations. In some applications however, it is desirable to change
this setting. Adjust the Combi unit to the applied batteries by
adjusting DIP switches SWB6 and SWB7. Default is “Standard”. .
Wrong adjustment can cause damage to your batteries which is not
covered by the warranty. The setting for traction battery should never
be used with a battery bank that consists of 2V GEL cells!
Battery Type
Stage
Bulk Voltage
Absorption Voltage
Float Voltage

Gel
@12VDC
14.1VDC
14.1VDC
13.6VDC

@24VDC
28.2VDC
28.2VDC
27.2VDC

Flooded
@12VDC
14.6VDC
14.6VDC
13.4VDC

@24VDC
28.2VDC
28.2VDC
26.8VDC

AGM 1
@12VDC
14.3VDC
14.3VDC
13.1VDC

@24VDC
28.6VDC
28.6VDC
26.2VDC

AGM 2
@12VDC
14.5VDC
14.5VDC
13.5VDC

@24VDC
29VDC
29VDC
27VDC

Power ”ON” Mode Selection: If want to use “COMBI Mode” or “CHR Mode” to startup of the
Combi unit. By adjusting DIP switches SWB8. Default is “COMBI
Mode”.
NOTE!
When after adjusting DIP switches must will the Combi unit re-start.

Inverter / Charger COMBI
5.2.5

5A Charger: (reference ⑤)
The Combi unit has a second charge output switch can be used to give a
maintenance charge to a small battery.
 Characteristics introduction
Battery maximum charger current: 5Amps
Battery maximum charger voltage: 14.4VDC @ 12V / 28.8VDC @ 24V
Battery charger status: three – step
Charger enable / Disable user selectable

5.2.6

DC Input Connection: (reference ⑥)
Follow the instructions to connect the battery cables to the DC input terminals of
the Combi unit. The cables should be as short as possible (less than 6 feet / 1.8
meters ideally) so that they can handle the required current in accordance with
the Electrical Codes and Regulations. The size of the cable should be thick
enough to limit the voltage drop to less than 2% when carrying the maximum
input current to prevent frequent low-input voltage warnings, and shutdown. UVP
(Under Voltage Protection) warning may result if there is excessive voltage drop
across the DC cables between the batteries and the Combi unit. Increasing your
DC cable size will help improve the situation.
Batteries are capable of providing very large currents in case of short circuit. In
case there is a short circuit in the cable run between the batteries and the input
terminals of the Combi unit, it will result in overheating / melting of the cables
and consequent risk of fire and injury, To prevent possibility of this hazard, use
Very Fast Acting DC Fuse in line with the positive cable. The fuse should be as
close to the positive battery terminal as possible. Use Busman ANN series fuses
( will also require Fuse Block 4164) or equivalent.
The following sizes of cables and fuses are recommended for up to 6 ft. distance
between the batteries and the Combi unit. (Applies to both 120 VAC and 230
VAC versions):
Model No

Wire AWG

Inline Fuse

SB2000-112 / 212

#2/0

250 A

SB2000-124 / 224

#1/0

125 A

 Connect DC input terminals to 12V / 24V battery or other DC power source.
[ + ] is positive, [ - ] is negative. Reverse polarity connection can blow the
internal fuse and may damage the Combi unit permanently.
WARNING!
Make sure that all the DC connections are tight (torque to 9 – 10
ft-lbs, 11.7 - 13 Nm). Loose connections could result in
overheating and can be a potential hazard.
29

Inverter / Charger COMBI

WARNING!
The recommended inline fuse should be installed as close to the
battery positive terminal as possible failure to use a fuse on the
“+” cable running between the Combi unit and battery may cause
damage to the cable / Combi unit and will void warranty
Also, only use high quality copper wire and keep the cable length short which
is as maximum of 3 – 6 feet.

Inverter / Charger COMBI
5.2.7

Remote control green terminal: (reference ⑦)
1.) Before installing the functions of the Combi unit, ensure the Combi unit to
turn off.
2.) Use 20 ~ 24 #AWG wire to connect the remote control terminals.
3.) Remote control ON / OFF Combi unit setup status :

NOTE: At one time, only one remote function should used to control the
Combi unit. The maximum voltage value is 60VDC in the ENB.
5.2.8

Dry Contact Green Terminal: (reference ⑧)

Dry contact terminals may be connected to a Form C relay for “FAULT” indication.
When “FAULT” occurs are provided with two sets of alarm contacts.
NOTE: Fault conditions include Input under/over voltage, Output
Short Circuit, Over Temperature, Over-load and, Fan Failure.

Inverter / Charger COMBI
Specifications of the Relay

5.2.9

Maximum
Voltage

Load

250 VAC
250 VAC
24 VDC
24 VDC

Resistive
Resistive
Resistive
Resistive

Number of
operations

Operating/Storage
Temperature

100,000
-30℃~75℃

Remote Control Of The Phone Jack On The Front Panel: (reference ⑨)

1.)

BAT. TEMP. Port : The Combi unit is delivered with a battery temperature
sensor. When the battery temperature is high, the charge
voltage is automatically decreased.

Pin Num.
1
2
3
4
5
6

Contact Rating
N.O.
N.C.
1A
1A
1A
1A

Signal Description
Not used
GND
Batteries temperature sensor
GND
+5V
Not used

Pin Num.
1
2
3
4
5
6

Inverter / Charger COMBI
2.)

RS-232 Port : Serial port monitoring and control through computer interface.

Combi unit
PIN Num.
Signal Description
1
Not used
2
GND
3
RXD
4
TXD
5
Not used
6
Not used



Computer
Signal Description
PIN Num.
Not used
1
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
Not used
9

The connection between this Combi unit and the computer is as follows :

Combo
unit

Computer

RXD

TXD

GND

GND
DTR
DSR
RTS
CTS

3.)

LCM Port : Connection for LCD remote control panel, can you setting and
display the Combi unit operation status.

Inverter / Charger COMBI
LCD Remote Control Panel
PIN Num.
Signal Description
1
CANH
2
CANL
3
PON
4
VCC5
VCC+
6
DIS
7
5VS8
5VS+

Combi unit
PIN Num.
1
2
3
4
5
6
7
8

The cables should be as short as possible (less than 32.8 feet / 10 meters ) so
that they can handle the signal.
4.)

CANⅠand CANⅡ Port : At present has not used, the reservation may
make the parallel use in the future.

5.)

Ethernet Port : The user can use RJ-45 cable line to connect to this
port to manage and control the COMBI unit through
SNMP.

NOTE:
Ethernet function at user option and can be purchased upon request.
5.2.10 Reset : Press the reset button when the Ethernet is not working normally.
5.3 Move The LCD Remote Control Panel Place:
5.3.1 How remove the LCD remote control panel
User can remove LCD remote control panel on the Combi unit. And can fixed in
the operation convenient place or is position. As followers fig.
Step 1. Loosening the screw in the front of the Combi unit, then will plastic pushes
forward. Remove the front.

(1)
34

(2)

Inverter / Charger COMBI
Step 2. Loosening the screw in the top of the Combi unit, then first will the top
plastic push front way. Remove the top plastic.

(1)

(2)

(3)
(4)
Step 3. Loosening the screw in the lcd remote control panel of the Combi unit,
then remove the LCD remote control panel, and will the cable wire taking in the
rear.The cable wire can fixed in the “RJ-45 fixed Position” connector.

(1)

(2)

Inverter / Charger COMBI

5.3.2

(3)
Combination the Combi unit

(4)

In remove LCD remote control panel after on the Combi unit. You must
Combination the Combi unit. As followers fig.
Step 1. Will lock in the top head sheet iron takes down, and will the LCD remote
control panel hole cap. Loosening the screw.

(1)
(2)
Step 2. Will the top plastic Combination in the Combi unit on the front, and
make sure that all the screw are tight.

(1)

(2)

Inverter / Charger COMBI
Step 3. Will the front plastic Combination in the Combi unit on the top, and
make sure that all the screw are tight.

5.3.3

Installation LCD remote control panel
User can be installation the LCD remote control panel in anywhere, and you
can using the LCD remote panel to control the Combi unit(see Chapter 6). The
cable wire you can reference 5.2.9 of the LCM PORT( the wire less than 32.8
feet / 10 meters). As followers fig.

Inverter / Charger COMBI
5.4 Rear Panel:
Rear Panel View

FAN ventilation grille (1) ~ (2): The fans behind the ventilation grilles provides cooling.
DOT NOT obstruct these vents!
 Maintenance:
5.4.1 Make sure that the fan vents are not blocked.

5.4.2

Use a vacuum cleaner to remove any dust from the fan area.

5.4.3

When cleaning the case or rear panel, use a soft, dry cloth, only. If the case or
rear panel is very dirty, use a neutral, non-abrasive detergent. Do not use alcohol
or ammonia based solutions.

5.4.4

Regular service, and relocation of the Combi unit, should be performed by a
qualified service technician.

5.4.5

Avoid spilling liquid on the Combi unit.

Inverter / Charger COMBI
5.5 Installation Drawing

This schematic is to illustrate the general placement of the Combi unit a circuit. It is not meant to provide detailed
wiring instructions for any particular electrical installation.

Fig 14. Installation Drawing
39

Inverter / Charger COMBI
5.5.1

Wiring instructions for one Combi unit (stand alone operation)
See fig 13.
1.) See reference ①. Connect the external AC-source to the AC-input of the

2.)

Combi unit. Integrate a fuse (value depending on the used wire diameter
with a maximum of 50Amps) and a Residual Current Device (RCD) into this
wiring.
See reference ②. Connect the AC-output POWER of the Combi unit to the

3.)

power distribution group.
See reference ③. Connect the INV. AC output of the Combi unit to the INV.

4.)

AC output distribution group. Integrate a Residual Current Device (RCD)
into this wiring.
See reference ④. Run the DC-cables between the batteries and the

5.)

Combi unit. Connect the red cable to the plus (+) connection, the black
cable to the minus (–) connection.
See reference ⑤. Attach the temperature sensor to the battery and run the

6.)

cable into the Combi unit.
Option: if you want to make use of the possibility to give a maintenance
charge to a small battery set (like a starter battery), run a AWG14 red cable
with a fuse holder between the positive pole of the starter battery and
Combi unit. reference ⑥. Fix the cable with an insulated fasten to the
“+5A”connection. Integrate a 10 Amps fuse in this wire. The negative pole

7.)

of this battery must be connected to the negative pole of the service battery.
See reference ⑦. If you want to install the LCD remote control panel, run

8.)

the communication cable between the Combi unit and the panel.
NOTE!
The Combi unit can also be operated without the LCD remote
control panel connected.
See reference ⑧. If you want to install a computer. To monitoring and

9.)

control the Combi unit.
See reference ⑨. The user can use RJ-45 cable line to connect to this
port and manage it through remote to control the Combi unit.

6 LCD Remote Control Panel – Display & Setup
6.1 LCD Panel Indications
6.1.1

Press the ON / OFF button on the front. The Combi unit starts working normally.
After switching on expect a five till ten second delay. The Combi unit will be
operating in normal condition when either of the following messages are
displayed on the LCD panel screen :

Inverter / Charger COMBI

6.1.2

LED Indications :




AC GRID: Displays incoming AC input status.
AC Input

LED Status

AC input ON
AC input OFF

Green
OFF

Inverter: Displays the Combi unit working in the “Inverter mode” statues.
DC-AC Inverter

LED Status

Inverter AC Power OK
Inverter AC Power Not Good

Green
Red

Charger: Displays the Combi unit working in the “Charger mode “ status.
Bypass

LED Status

Charger OK
Charger Not Good

Green
OFF

ALARM: Displays the Combi unit status of the Failure Alarm.
Alarm
Over / Under Alarm
/ FAN Alarm
Set alarm in the inverter to
operate normally

LED Status
Orange
OFF

NOTE. For instructions on setting the alarm, see details in Section 6.3.3
6.1.3

LCD Remote Control Panel Selection Buttons :



Function of Various Buttons :
Function : You can use the “up” button to scroll through the menus. or
to select the value for set up under setting mode.
41

Inverter / Charger COMBI
Function : You can use the “Down” button to scroll through the
menus or to select the value for set up under setting
mode.

Function : You can use the “Page Up” button to scroll through
the menus.

Function : You can use the “Page Down” button to scroll
through the menus.
Function : Press the button longer than 2 seconds,
The Combi unit will change to “Select
Menu” which appears on the LCD screen
for the user to set functions.
Function : Confirms a selection or value.

Function : The Combi unit can be activated by the button.
Press “ON / OFF” button, the Combi unit to startup.
If you want to turn OFF the Combi unit. Press the
“ON / OFF” button longer than 3 seconds.
6.1.4

LCD Display: Displays Combi unit operational status (See also section 6.3 for
detailed).

6.2 LCD Rear View Introduction

Inverter / Charger COMBI
6.2.1

Jump (reference ①)
The “J1 jump” is placed inside the remote controller and it is to indicate either
“Return Override Function” or ‘Ignition Lockout Function”
 J1 jump “open” – Return Override Function
 J2 jump “short” – Ignition Lockout Function
Note.
The “J1” jump default mode is “short”.

6.2.2

Green Terminal (reference ②)

Function

ALM

CTL

-ENB

-VCC

 ALM (PIN1)
When the Combi unit has the warning or the protection produce,
simultaneously this “ALM” pin will changing output to 5 Volt / 10mA control
signal to provides the user.

Inverter / Charger COMBI
 CTL (PIN2)
User can be use this “CTL” pin to force the Combi unit to turn ON or turn OFF,
and the function must with the “J1” jump coordination use (see 6.2.1).
＊ J1 jump is “open” : Turn OFF the Combi unit. When have a power
provision the “CTL” pin, then the Combi unit to turn ON.
If the power havn’t provision the “CTL” pin, this time the
Combi unit to turn ON. As follows shows :
J1 Jump

“CTL” Input Voltage

Combi Unit

5 ~ 60 VDC

Turn ON

Turn OFF

Open
＊ J1 jump is “short” : Turn ON the Combi unit. When have a power provision
the “CTL” pin, then the Combi unit to turn OFF. If the
power havn’t provisions the “CTL” pin, this times the
Combi unit to turn ON. As follows shows :
J1 Jump

“CTL” Input Voltage

Combi Unit

5 ~ 60 VDC

Turn OFF

Turn ON

Short
 -ENB (PIN3)
User can be this “-ENB” pin to control the Combi unit to turn ON or turn OFF.

WARNING!
To turn “ON” the combi unit by operating the –ENB function of
LCD Panel, the combi inverter cannot be turn OFF by any others
operations, only if to turn the MAIN SWITCH “OFF”.
 -Vcc (PIN4)
This is LCD remote control panel ground
This is LCD remote control panel ground, and with battery
negative (-) is different.
44

Inverter / Charger COMBI
6.3 Startup Sequence and Standby Status
6.3.1

Once turn on the Combi unit. The LCD display shows “System startup please
wait”, then checks the Combi unit. Status flow is as follows:

Inverter / Charger COMBI
6.4 Setup Menu – Operation and Instructions Entering Setup Menu:
Press

Button longer than 2 seconds. The Combi unit, enters the select Menus

consisting of four layers:
(1)Select Menu Heading:
(3)Select Menu Item:

(2)Select Menu :
(4)Setting Value:

Inverter / Charger COMBI
6.4.1

Select Menu Heading:
The manual is used to show the status of the running Combi unit. The user can
make selections by switching on


Ig = xx.x →Display the Grid O/P current.
Vg = xxx.x →Display GRID O/P voltage
FQ = xx.x →Display the Grid frequency
W = xxx →Display the Grid O/P Power.


Ib = xxx →Display the current status of Battery :
“Ib = -xxx” to indicate the value of discharging current in discharge mode.
”Ib = xxx ” to indicate the value of charging current in charge mode.
℃ = xx.x →Display “BAT. Temp.” to indicate the ambient temperature.
Vb = xx.x →Display the charge or discharge voltage of the battery.
→Displays the status of charging cycle: BULK, ABSORPTION or FLOAT
：BULK Phase.
：ABSORPTION Phase.
：FLOAT Phase.


Ii = xx.x →Display the INV output current.
Vi = xxx.x →Display the INV output voltage.
FQ = xx.x →Display the INV frequency.
W = xx.x →Display the INV output power.
6.4.2

Change Run Mode :
Combi / Charger mode control, when the Combi unit there is no external AC
power available, the inverter will provides AC power, and when there is external
AC power available, the Combi unit can constantly senses the incoming AC
current which is used to supply both the battery charger and the appliances
connected the AC output. This functions on the setting of “Combi power ON”.
(See also section 3.3.3 for detailed)
47

Inverter / Charger COMBI
If you want to charge you batteries only and you do not want to start the inverter
function when incoming AC fails. Then the function must be setting of “CHR
power ON”. (Charger See also section 3.3.7 for detailed)
6.4.3

P. S. Mode Param
Power sharing mode parameter control. Setting the Combi unit “ Sharing /
Support / Generator “ function of the enable or disable, and setting the AC input
current limited.
 Iac setup : Setting the available power at the AC input current limited. To
protect the incoming AC input current from overload.
Default : 10A @ 110VAC model / 3A @ 230VAC model
Setting range : 10 ~ 50A @ 110VAC model / 3 ~ 25A @ 230 VAC model
 Power sharing : Setting the Combi unit “Sharing / Support / Generator
“ function of the enable or disable. When set the function have display on the
LCD screen. Mean the function enable. When no have appears on the LCD
screen is disable.
Default = Disable.
Setting range: Disable / GEN. / SUPP. / SUPP. GEN. / SHAR. / SHAR. GEN.
/ SHAR. SUPP. / SHAR. SUPP. GEN.

6.4.4

Another Parm :
Press

button before of enters, the “Another Parm” menus.

To access the settings menu contents a level password must be provided. For
increased protection certain sensitive parameters are protected by a level
password than an authorized operator must provide.
 User interface
1. LCD contrast : Sets the LCD screen contrast.
Default = 50%
Setting range = 0% ~ 100%
2. LCD Auto-off : Sets the LCD screen backlight auto off timer.
Default = 120 seconds
Setting range = 0 ~ 250 seconds.
3. Buzzer setting : Sets the LCD remote control panel internal buzzer
sound ON / OFF. When set the function have appears on the LCD
screen. The buzzer will occurs “Beep” sounds.
Default = MSG, Alert, SHDN
Setting range = Disable / SHDN / Alert / Alert, SHDN / MSG / MSG,
SHDN / MSG, Alert / MSG, Alert, SHDN
48

Inverter / Charger COMBI
Menu
MSG
Alert
SHDN
Disable

Status
Power on or push keypad
Fan fail or UV alarm or overload alarm or OT alarm

OVP or UVP or OLP or OTP
Any

Buzzer
ON
ON
ON
OFF

4. Alert Setting: When alert occurs, the Combi unit internal dry contact relay
will open / close. (see details in section 5.2.8)
Default = Alert, SHDN
Setting Range = Disable / SHDN / Alert / Alert, SHDN
Menu
Alert
SHDN
Disable

Status
Fan fail or UV alarm or Overload alarm
OVP or UVP or OLP or OTP
Any

Relay
ON
ON
OFF

5. Shutdown retry: when the Combi unit occurs OVP shutdown or UVP
shutdown or overload or short circuit shutdown, anyway. The Combi unit
can be automatically restart, and should according to setting value.
Default = 5
Setting range: Disable ~ 15
6. INV. OFF delay: When external AC power incoming available, the
transfer relay switch turn ON. If the external AC power cutoff, the transfer
relay will open. When opened, the external power source the supply the
load connected to the “AC output “ only, the inverter will deliver current
for the load connected to the “INV. AC power”. However this time will to
consumption by energy switch is stored in the batteries. So, when
external AC power cutoff. The Combi unit can be automatically power
OFF, and should according the setting timing.
Default = Disable
Setting range: Disable ~ 10Min
7. Language : The Combi unit have different language be provided
selectable.
Default = English
Setting: English / Italian / Spanish / French / German
8. New password: This option allows to change the current password. To
set the new password digits use the and keys.
Maximum password length = 4 word
Factory setting = 0000
9. Iac setup switch: when the External AC power is connected, the system
will automatically constrain at the lowest value of AC input current, at the
same time, the LCD display will show “Iac setup: xxA” message on the
screen so that the Users may change the constrained value of AC current
randomly . The system allows the Users to set up the value within 60 sec.
if the time passed, the system will resume automatically and back to the
system previous setting.
Default = Disable
Setting: Enable / Disable

Inverter / Charger COMBI
 I/P Parameter :
1. OVP Setting: Setting Combi unit the Over Voltage Protection (OVP) and
shutdown on the inverter operate.
Default = 16 VDC @ 12V Model, 32 VDC @ 24V Model
Model
12 V
24 V

Setting value range
15 VDC ~ 16 VDC
30 VDC ~ 32 VDC

2. OVP Recovery: When the dc input voltage is higher than the OVP
setting, the Combi unit shuts-down; once the input voltage falls below
the set OVP value, the Combi unit will automatically restart.
Default = 14.5 VDC @ 12V Model, 29 VDC @ 24V Model
Model
12 V
24 V
3.

UVP Setting: Setting the Combi unit Under Voltage Protection (UVP)
and Shutdown on the inverter operate.
Default= 10.5 @ 12V Model, 21 VDC @ 24V Model
Model
12 V
24 V

Setting value range
13.5 VDC ~ 14.5 VDC
27 VDC ~ 29 VDC

Setting value range
10.5 VDC ~ 11.5 VDC
21 VDC ~ 23 VDC

UVP Recovery: When the DC input voltage is below the set UVP value
The Combi unit shuts-down; Once the input voltage rises Above the set
UVP value, the Combi unit will automatically Restart.
Default= 12.5VDC @ 12V Model, 25 VDC @ 24V Model
Model
12 V
24 V

Setting value range
12.5 VDC ~ 13.5 VDC
25 VDC ~ 27 VDC

5. UV Alarm: Setting Under Voltage (UV) alarm. When the input voltage is
lower than the set value, the Combi unit will sound “beep” to remind that
the unit is going to shutdown. At the meantime, the contact in the internal
Dry Contact Relay will open / close. (See details in Section 5.2.8)
Default= 10.5 VDC @ 12 V Model, 21 VDC @ 24 V Model
Model
12 V
24 V

Setting value range
10.5 VDC ~ 11.5 VDC
21 VDC ~ 23 VDC

NOTE!
The value of voltage set for the “UV Alarm” should be equal to or
higher than the value set for “UVP” or else the unit will shutdown
without any audible warning.
 O/P Parameters:
1. O/P Voltage: Setting the Combi unit output voltage on the inverter
operate.
Default= 110 VAC @110 V Model, 230 VAC @ 230 V Model
50

Inverter / Charger COMBI
Model
110 V
230 V

Setting value range
100 VAC ~ 120 VAC
200 VAC ~ 240 VAC

2. O/P Frequency: Setting the Combi unit output frequency on the inverter
operate.
Default= 60 Hz @ 110 V Model, 50 Hz @ 230 V Model.
Model
110 V
230 V

Setting value range
47 Hz ~ 63 Hz
47 Hz ~ 63 Hz

3. Sync Frequency: If a generator with distorted. Output waveform (too low
frequency) is used as AC source. The allowed frequency window for the
incoming AC power can be enlarged.
Example1: AC input = 230 VAC / 50Hz, User setting Value= 7Hz
When the Combi unit “Output frequency” is within The Range
of 43 Hz~57 Hz, the internal transfer relay will close. When the
output frequency is less than 43 Hz or more than 57 Hz, the
internal transfer relay will still open.
Example2: When user setting Value= Disable,the Combi unit “Output
frequency” is within The Range of 47 Hz~63 Hz, the internal
transfer relay will close.
Default= 7Hz
Model
110 V
230 V

Setting value range
Disable ~ 7 Hz
Disable ~ 7 Hz

4. Overload Alarm: Sets the overload alarm. When the Combi unit output
power is higher than the set value, the Combi unit will sound “beep” to
remind that the unit is going to shutdown. At the same time, the internal
Dry Contact Relay will open/close. (See details in Section 5.2.8)
Default= 100%
Setting range= 50%~110%
5. Saving Level: Setting the Combi unit to power saving to reduction
consumption from the batteries.(level setting refer See 5.2.10)
Default = Disable
Setting range = Disable ~ 7
6. Saving Interval: When the Combi unit in working for the power saving
mode. And the Combi unit must to sensitive. This time the Combi unit
must to AC output (LOAD) sensitive load. When the load increases more
than set value of the power saving level, the Combi unit of awaking on
the output power automatically. However, to the load sensitive time. The
Combi unit can be adjust on the power saving interval.
Default = 2.0 Seconds
Setting range = 0.1S ~ 2.0S
7. Ground Relay: Setting the Combi unit ground relay allows you to connect
the Neutral. (See details in section 5.2.3)
Default = OFF
Setting range = ON / OFF
51

Inverter / Charger COMBI
 Charge parameter :
1. Ibat setup: When external AC power comes available. The battery
charger are supplied by the external AC power. The batteries are
recharged now. However, the charger current can be adjust on the “Ibat
setup”.
Default = 50.0 A @12V model / 25.0A @24V model
Model
12 V
24 V

Setting value range
20.0A ~ 100A
10.0A ~ 50.0A

2. Second charger : The Combi unit can be used to give a maintenance
charge to a small battery.
 The second charger output current 5A maximum.
 Users can be set turn ON or turn OFF on the charger power output.
Default = ON
Setting range = ON / OFF

Battery Type
Stage
Bulk Voltage
Absorption Voltage
Float Voltage

Battery Type
Stage
Vbulk CTM
Vabs CTM
Vfloat CTM

Max. Bulk timer: The Combi unit is a three – step plus charging method
and guarantees that the batteries are always charged 100%. This three
automatic stages: BULK, ABSORPTION and FLOAT. The first step of the
three plus charge system is the BULK phase. The Combi unit can be
adjust on the phase timer.(See details in fig 12)
Default = 8 hours
Setting range = 8 ~ 18 hours

Battery type: Users can be setting for the battery type.
(see details in section 5.2.10)
Default = Gel
Setting range = Gel / Flooded / AGM 1 / AGM 2 / Customer.
be used with a battery bank that consists of 2V GEL cells!
Gel
Flooded
AGM 1

@12VDC
14.1VDC
14.1VDC
13.6VDC

@24VDC
28.2VDC
28.2VDC
27.2VDC

@12VDC
14.6VDC
14.6VDC
13.4VDC

@24VDC
28.2VDC
28.2VDC
26.8VDC

@12VDC
14.3VDC
14.3VDC
13.1VDC

@24VDC
28.6VDC
28.6VDC
26.2VDC

AGM 2

@12VDC
14.5VDC
14.5VDC
13.5VDC

@24VDC
29VDC
29VDC
27VDC

Customer
@12VDC
14.0 ~ 15.0VDC
14.0 ~ 15.0VDC
13.0 ~ 14.0VDC

@24VDC
28.0 ~ 30.0VDC
28.0 ~ 30.0VDC
26.0 ~ 28.0VDC

To be selected by the customer on the manufacturers’ recommendations, if
available.
5. RST to default: The Combi unit you can restore all the factory settings.
Select the items “RST to default “ and press .The screen “ON”
appears on the display. press to restore the factory settings.

Inverter / Charger COMBI
7 RS-232 Communication and Operation
7.1 Operation of RS-232 serial port :
7.1.1

See reference 5.2.9. If you want to install a the computer, run the communication
cable between Combi unit and the computer. Connect the RS-232 port to front
on the Combi unit. However you can be remote control and monitoring to the
Combi unit.

7.1.2

The RS232 interface of this unit employs ASCII code to implement the
asynchronous serial transmission control.
The byte structure is START-BIP – 8 BIT DATA-STOP BIT.
Baud rate: 9600.

7.1.3

Coupled with PC software application port. Operation is as detailed in Section 72.

7.2 Example of the RS232 Operation:
7.2.1

RS-232 command:
Command format:
This unit uses high-level language commands with a CR (0DH) as the end of the
command. The system would interpret and execute the command only after
these two characters are received. After the unit execute the command, it would
send a response string to the computer. The response string is as follows:
= > CR : Command executed successfully
? > CR : Command error, not accepted
! > CR : Command correct but execution error (e.g. parameters out of range).
If the command needs any information from the unit, the unit would send the
information back to the computer (with CR ) and then send the response string
to the computer.

7.2.2

Command format:
This unit supports the following command format.
There should always be a CR (0DH) appended to the command while sending
the command to this unit.
1.)

Users can be the command to control the Combi unit to turn ON or turn
OFF.
Format : Power
Example : A space (ASCII code 20H) is needed between power and

can be one of the following.
“0” : Power OFF
“1” : Power ON

2.)

Users can be the command to query the Combi unit output frequency of the
inverter.
Format : FRQ?
After “Enter”, the unit’s “Output Frequency” appears on the PC screen.
53

Inverter / Charger COMBI
3.)

Users can be the command to query the Combi unit output voltage of the
inverter.
Format: VINV?
After “Enter”, the unit’s “Output Voltage” appears on the PC screen.

4.)

Users can be the command to query the Combi unit output current of the
inverter.
Format: IINV?
After “Enter”, the unit’s “Output Current” appears on the PC screen.

5.)

Users can be the command to query the Combi unit status.
Format: STA?
After “Enter”, the unit’s working status will appears on the PC screen. As
follows status on behalf of the Combi unit
Bit
S
T
U
V
W
X
Y
Z

Binary code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1

ASC II Code
0
128
0
64
0
32
0
16
0
8
0
4
0
2
0
1

Status on behalf
Power turn off
Power turn on
Battery no high voltage
Battery high voltage
Battery no low voltage
Battery low voltage
Temperature normal
Temperature failure
Fan normal
Fan failure
No power saving
power saving mode
No overload or short circuit
overload or short circuit
Battery no under voltage alarm
Battery under voltage alarm

6.)

Users can be the command to query the Combi unit AC input of the grid
power.
Format: VGRID?
After “Enter”, the unit’s “AC input voltage” appears on the PC screen.

7.)

Users can be the command to query the Combi unit AC input of the grid
current.
Format: IGRID?
After “Enter”, the unit’s “AC input current” appears on the PC screen.

8.)

Users can be the command to query the Combi unit DC input voltage of
the battery.
Format: VBAT?
After “Enter”, the unit’s “DC input voltage” appears on the PC screen.

9.)

Users can be the command to query the Combi unit DC input current of the
battery.
Format: IBAT?
After “Enter”, the unit’s “DC input voltage” appears on the PC screen.

Inverter / Charger COMBI
10.) Users can be the command to query the Combi unit contact temperature
sensor on the battery.
Format: TBAT?
After “Enter”, the unit’s “Battery Temperature” appears on the PC screen.
11.) Users can be the command to query the Combi unit internal temperature.
Format: TENIR?
After “Enter”, the unit’s “Internal Temperature” appears on the PC screen.
12.) Users can be the command to query the Combi unit output power of the
inverter.
Format: PINV?
After “Enter”, the unit’s “Output Power” appears on the PC screen.
13.) Users can be the command to query the Combi unit AC input of the grid
power.
Format: PGRID?
After “Enter”, the unit’s “AC input power” appears on the PC screen.
14.) Users can be the command to query the Combi unit model number.
Format: Model?
After “Enter”, the unit’s “Model Number” appears on the PC screen.
15.) Users can be the command to reset default the Combi unit .
Format: RST?
After “Enter”, the unit’s will reset to default.
7.2.3

Command for accessing Setup Menus and adjusting values:
1.)

Select the Setup Menus with the help of Function Codes:
Format : FUNC
After “Enter”, the Setup Menu for the Function Code will be called.
The = 0~33, as follows:

Function
Code
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

Setting Menu
LCD_Contrast
LCD_Auto-off
Not used
Buzzer Setting
Alert Setting
Shutdown Retry
Sync Frequency
Battery Type
Saving Level
Ground Relay
Second Charger(5A)
Change Run Mode
Power Sharing Mode Parameter
Inv Off Delay
Overload load Alarm
Saving Interval
Iac Setup
Max. Bulk Timer

Function
Code
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

Setting Menu
OVP Setting
OVP Recovery
UVP Setting
UVP Recovery
UV Alarm
O/P Voltage
O/P Frequency
Ibat Setup
EE_SWLed
SN[0]
SN[1]
Not use
EE_Vbulk_CTM
EE_Vabs_CTM
EE_Vfloat_CTM
EE_Veq_CTM
EE_Teq_CTM
EnEq
55

Inverter / Charger COMBI
1. Command to query the functions No :
Format: FUNC?
After “Enter”, the unit’s “Function Code” appears on the PC screen.
2. Command to query the set value of the function :
Format: SETT?
After “Enter”, the existing set value of the function appears on the PC
screen.
3. Command to set or adjust the value of the function :
Format: SETT
After “Enter”, the new value of the function is set choose the of
the function as follows:
FUNC 0: LCD Contrast
SETT
0 ~ 100

Default
50%

FUNC 1: LCD Auto-off
SETT
0 ~ 250

Default
120 S

FUNC 3: Buzzer Setting
SETT
0

Buzzer (Beep sound)
Disable

1
2

SHDN
Alert

Alert , SHDN

4
5

MSG
MSG , SHDN

6
7

MSG , Alert
MSG , Alert , SHDN

Default

FUNC 4: Alert Setting

SETT
0

Alert
Disable

1
2
3

SHDN
Alert
Alert, SHDN

Default

Inverter / Charger COMBI
FUNC 5: Shutdown Retry
SETT
0 ~ 15

Default
5

FUNC 6: Sync Frequency
SETT
Disable ~ 70 @10=1Hz

Default
7.0Hz <70>

FUNC 7: Battery Type
SETT
0
1
2
3

Type
Gel
Flooded
AGM 1
AGM 2

Default

LOAD
Disable
>40W
>80W
>100W
>120W
>160W
>180W
>220W

Default

Relay
OFF
ON

Default

FUNC 8: Saving Level
SETT
0
1
2
3
4
5
6
7

FUNC 9: Ground Relay
SETT
0
1

FUNC 10: Second Charger
SETT
0
1

5A Output
OFF
ON

Default
1

FUNC 11:Change Run Mode
SETT
0
3

Mode
CHR. Power ON
COMBI Power ON

Default
3

Inverter / Charger COMBI
FUNC 12: P. S. Mode Parameter
SETT
0
1
2
3
4
5
6
7

Power Sharing Mode
Disable
GEN.
SUPP.
SUPP. , GEN.
SHAR.
SHAR. , GEN.
SHAR. , SUPP.
SHAR. , SUPP. , GEN.

Default

FUNC 13: Inv Off Delay
SETT
0 ~ 100 @10=1 min

Default
5.0 min <50>

FUNC 14: Overload Alarm
SETT
50 ~ 110

Default
100%

FUNC 15: Saving Interval
SETT
1 ~ 20 @10=1 sec

Default
2.0 sec <20>

FUNC 16: Iac Setup
SETT

Default

100 ~ 500 @10=1 A

10.0A <100>

30 ~ 250@10=1 A

3.0A <30>

Model
SB2000-112
SB2000-124
SB2000-212
SB2000-224

FUNC 17: Max. Bulk Timer
SETT
8 ~ 180 @10=1 Hour

Default
8.0 Hr <80>

FUNC 18: OVP Setting
SETT

Default

1500 ~ 1600 @100=1V 16.0V <1600>
3000 ~ 3200 @100=1V 32.0V <3200>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

Inverter / Charger COMBI
FUNC 19: OVP Recovery
SETT

Default

1350 ~ 1450 @100=1V 14.5V <1450>
2700 ~ 2900 @100=1V 29.0V <2900>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 20: UVP Setting
SETT

Default

1050 ~ 1150 @100=1V 10.5V <1050>
2100 ~ 2300 @100=1V 21.0V <2100>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 21: UVP Recovery
SETT

Default

1250 ~ 1350 @100=1V 12.5V <1250>
2500 ~ 2700 @100=1V 25.0V <2500>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 22: UV Alarm
SETT

Default

1050 ~ 1150 @100=1V 10.5V <1050>
2100 ~ 2300 @100=1V 21.0V <2100>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 23: O/P Voltage
SETT

Default

1000 ~ 1200 @100=1V 110V <1100>
2000 ~ 2400 @100=1V 230V <2300>

Model
SB2000-112
SB2000-124
SB2000-212
SB2000-224

FUNC 24: O/P Frequency
SETT

Default

470 ~ 630 @10=1Hz

60Hz <600>

470 ~ 630 @10=1Hz

50Hz <500>

Model
SB2000-112
SB2000-124
SB2000-212
SB2000-224

Inverter / Charger COMBI
FUNC 25: Ibat Setup
SETT

Default

200 ~ 1000 @10=1A

50.0A <500>

100 ~ 500 @10=1A

25.0A <250>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 26: After “Enter”, will the combi unit dip switch (on the front) set value
appears on the PC screen.
FUNC 27: After “Enter”, will the combi unit series number [0] appears on the PC
screen.
FUNC 28: After “Enter”, will the combi unit series number [1] appears on the PC
screen.
FUNC 30: Bulk-stage voltage setting
SETT

Default

1400 ~ 1500 @100=1V 14.5V <1450>
2800 ~ 3000 @100=1V 29.0V <2900>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 31: Absorption-stage voltage setting
SETT

Default

1400 ~ 1500 @100=1V 14.5V <1450>
2800 ~ 3000 @100=1V 29.0V <2900>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 32: Float-stage voltage setting
SETT

Default

1300 ~ 1400 @100=1V 13.5V <1350>
2600 ~ 2800 @100=1V 27.0V <2700>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

FUNC 33: Equalization-stage voltage setting
SETT

Default

1400 ~ 1600 @100=1V 14.5V <1450>
2800 ~ 3200 @100=1V 29.0V <2900>

Model
SB2000-112
SB2000-212
SB2000-124
SB2000-224

Inverter / Charger COMBI
FUNC 34: Equalization-stage timer setting
SETT
10 ~ 1200 @100=1 Hr

Default
8 Hr <80>

FUNC 35: Equalization-stage Enable / Disable setting
SETT
0
1
2.)

Power Sharing Mode
Disable
Enable.

Default
0

Select the “REHTY Menus” with the help of Function Codes:
Format : FUNC
After “Enter”, the Setup Menu for the Function Code will be called.
The = 0~17, as follows:

Function
Code
0
1
2
3
4
5
6
7
8

3.)

REHTY Menus
Power output W/H
Power output Time
Power input W/H
Power input Time
Charging AH
Charging Time
DisCharging AH
DisCharging Time
OLP time

Function
REHTY Menus
Code
9
Short time
10
Heat sink temp. fail time
11
Environment temp. fail time
12
Battery Max. voltage
13
Battery Min. voltage
14
Battery OVP time
15
Battery UVP time
16
Battery OTP time
17
Charging cycle

1. Users can be the command to query the Functions No:
Format : FUNC?
After “Enter”, the unit’s “Function Code” appears on the PC screen.
2. Users can be the command to query the Combi unit history data :
Format : REHTY
After “Enter”, the Combi unit history data of the function appears on the
PC screen.
Select the “REUDF/WRUDF Menus” with the help of Function Codes:
Format : FUNC
After “Enter”, the Setup Menu for the Function Code will be called.
The = 0~31, as follows:
Function
Code
0
1
2
3
4
5

Setting Menu
UserDef[0]
UserDef[1]
UserDef[2]
UserDef[3]
UserDef[4]
UserDef[5]

Function
Code
16
17
18
19
20
21

Setting Menu
UserDef[16]
UserDef[17]
UserDef[18]
UserDef[19]
UserDef[20]
UserDef[21]
61

Inverter / Charger COMBI
6
7
8
9
10
11
12
13
14
15

UserDef[6]
UserDef[7]
UserDef[8]
UserDef[9]
UserDef[10]
UserDef[11]
UserDef[12]
UserDef[13]
UserDef[14]
UserDef[15]

22
23
24
25
26
27
28
29
30
31

UserDef[22]
UserDef[23]
UserDef[24]
UserDef[25]
UserDef[26]
UserDef[27]
UserDef[28]
UserDef[29]
UserDef[30]
UserDef[31]

1. Users can be the command to query the Functions No :
Format: FUNC?
After “Enter”, the unit’s “Function Code” appears on the PC screen.
2. Users if want to read the Combi unit set value. This setting value defers
to the user meaning to do set. can be the command to read the Combi
unit set value:
Format: REUDF
After “Enter”, the existing set value will appears on the PC screen.
3. Users if want to set a word to the Combi unit by means. can be the
command to set value of the Function:
Format: WRUDF
The value maximum is two words only.
After “Enter”, the new value will save of the Combi unit.

8. Trouble Shooting
8.1 Fault Indicators

WARNING:
Do not open or disassemble the Combi unit. Attempting to service the unit
may cause risk of electrical shock or fire.If a failure occurs, the origin of the
failure is displayed by means of the LCD remote control panel LEDS and
display.
Mode

Problems and Symptoms
Possible Cause
No output and LCD none Illuminating
The Combi unit power
a. The Combi unit not working
switch turn off
Damage or voltage
b. DC input battery error
error of the battery
c. DC input terminal none
DC fuse is blown
voltage of the Combi unit
LCD panel “Alarm LED” Indicators red lamp
The Combi unit is load
a. LCD panel appears
with than 100%, but
“Overload alert”
the inverter still on.
b. LCD panel appears
The battery voltage is

Solutions
Check the on/off switch of the
LCD panel
Check and Confirmation of the
voltage to the battery
Investigate the cause of the
failure and replace the fuse.
Reduce the connected load by
switching off some equipment.
Check the batteries.

Inverter / Charger COMBI
“UV alert”

Combi

Charger

No AC power output
a. LCD panel appears
“OLP shutdown” and
“Inverter LED” solid red.
b. LCD Panel appears “OVP
Shutdown” and “Inverter
LED” solid red.
c. LCD Panel appears
“UVP Shutdown” and
“Inverter LED” solid red.
d. LCD Panel appears
“ENIR TEMP. shutdown” or
“H.S. TEMP. shutdown” or
“BAT. TEMP. shutdown”
and “Inverter LED” solid
red.
No charge current to the batteries

running too low, but The inverter will switch off if the
the inverter still on.
battery voltage stays low.
Short circuit , wiring
error. over loading.

Check AC wiring for short
circuit .
Reduce load.

Over dc input voltage
(OVP)

Check dc input voltage and
reduce the voltage

Low dc input voltage. Recharge to the battery. Check
(UVP)
connections and cables wire.

Over Thermal
shutdown. (OTP)

LCD panel display none
charge current.

Bypass relay not to
close

LCD panel “Charger LED”
and “ AC Grid LED” not
illuminating.

Not AC input power

To restart the Combi unit
always.

DC input terminal no
connections to the
batteries

Improve ventilation. Make sure
ventilation, grilles / slots of the
Combi unit are not obstructed.
Lower ambient temperature.

Check frequency of the Combi
unit setting and AC input both
same
Check AC input terminal
connections, and to the make
sure external AC input or AC
circuit breaker is OK.
Check the DC input terminal.

8.2 Warranty
We guarantee this product against defects in materials and workmanship for a period of 24
months from the date of purchase and will repair or replace any defective Combi units if you
directly returned them to us with postage paid.
Please note that Cotek is only responsible for ensuring our products are operational before
delivering. This warranty will be considered void if the unit has been misused, altered, or
accidentally damaged. Cotek is not liable for anything that occurs as a result of the user’s fault.

No. 33, Rong Hsin Rd., Pa Teh City, Tao Yuan County, Taiwan
Phone：886-3-3661581

FAX：886-3-3676029

E-mail：sales@cotek.com.tw

http：// www.cotek.com.tw
63

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File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Page Count                      : 64
Language                        : zh-TW
Tagged PDF                      : Yes
Title                           : WF-600T Series
Author                          : Joseph A. Namenye
Creator                         : Microsoft® Office Word 2007
Create Date                     : 2013:07:03 21:22:36+08:00
Modify Date                     : 2013:07:03 21:22:36+08:00
Producer                        : Microsoft® Office Word 2007

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ZTE WF 600T Series Sb 2000 Manual 20130620

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