CMC 256plus Technical Data Sheet Brochure ENU

User Manual: CMC-256plus-Technical-Data-Sheet-Brochure-ENU

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The CMC256plus is the first choice for applications requiring very high accuracy. This unit is not
only an excellent test set for protection devices of all kinds but also a universal calibration tool.
Its high precision allows the calibration of a wide range of measuring devices, including: elec-
tricity meters of class 0.2S, measuring transducers, power quality measurement devices and
phasor measurement units (PMU). Its unique accuracy and flexibility make the CMC256plus
ideal for protection and measurement equipment manufacturers for research and develop-
ment, production and type testing.
Operation: PC or CMControl
CMC256plus:6 Phase Current + 4 Phase Voltage Test Set and Universal Calibrator
Current generators
Setting
range
6-phase AC (L-N) 6 x 0 ... 12.5A
3-phase AC (L-N) 3 x 0 ... 25A (GroupA II B)
1-phase AC (3L-N) 1 x 0 ... 75A (GroupA II B), 2 x 0 ... 37.5A
DC (3L-N) 1 x 0 ... ±35A (GroupA II B), 2 x 0 ... ±17.5A
Power 6-phase AC (L-N) 6 x 80VA typ. at 8.5A, 6 x 70VA guar. at 7.5A
3-phase AC (L-N) 3 x 160VA typ. at 17A (GroupA II B)
3 x 140VA guar. at 15A (GroupA II B)
1-phase AC (3L-N) 1 x 480VA typ. at 51A (GroupA II B),
2 x 240VA at 25.5A
1 x 420VA guar. at 45A (GroupA II B),
2 x 210VA at 22.5A
1-phase AC (L-L) 1 x 320VA typ. at 8.5A (GroupA II B),
2 x 160VA at 8.5A
1 x 280VA guar. at 15A (GroupA II B),
2 x 140VA at 7.5A
1-phase AC (L-L-L-L) 1 x 320VA typ. at 8.5A
(40VRMS, GroupA and B in series)
1 x 280VA guar. at 7.5A
(40VRMS, Group A and B in series)
DC (3L-N) 1 x 480W typ. at ±35A (Group A II B),
2 x 240W at ±17.5A
1 x 470W guar. at ±35A (Group A II B),
2 x 235W at ±17.5A
500
400
300
200
100
00 10 25 50 75
Output current / A
Group A
and B in
series
1-phase
AC (L-L)
3-phase AC (L-N)
1-phase AC (L-N)
Output power (typ.) / VA
Accuracy 2error <0.015% rd.3 + 0.005% rg.3 typ. at 0 ... 12.5A
error <0.04% rd. + 0.01% rg. guar. at 0 ... 12.5A
Distortion (THD+N) 4<0.025% typ., <0.07% guar.
Ranges 1.25A / 12.5A (Group A, B) or 2.5A / 25A (Group A II B)
Resolution
(for respective range)
50µA / 100µA / 500µA / 1mA
Max. compliance voltage
(L-N)/(L-L)
15Vpk / 60Vpk
Connection 4mm (0.16in) banana sockets / combination socket
(Group A only)
Voltage generators
Setting range 4-phase AC (L-N) 4 x 0 ... 300V (VL4(t) automatically
calculated: VL4 = (VL1+VL2+VL3)*c
or freely programmable)
3-phase AC (L-N) 3 x 0 ... 300V
1-phase AC (L-L) 1 x 0 ... 600V
DC (L-N) 4 x 0 ... ±300V
Power 3-phase AC (L-N) 3 x 100VA typ. at 100 ... 300V
3 x 85VA guar. at 85 ... 300V
4-phase AC (L-N) 4 x 75VA typ. at 100 ... 300V
4 x 50VA guar. at 85 ... 300V
1-phase AC (L-N) 1 x 200VA typ. at 100 ... 300V
1 x 150VA guar. at 75 ... 300V
1-phase AC (L-L) 1 x 275VA typ. at 200 ... 600V
1 x 250VA guar. at 200 ... 600V
DC (L-N) 1 x 420W typ. at ±300V
1 x 360W guar. at ±300V
Output voltage / V
Output power (typ.) / VA
1-phase AC (L-L)
1-phase AC (L-N)
3-phase AC (L-N)
4-phase AC (L-N)
300
250
200
150
100
50
00 100 200 300 400 500
600
Accuracy 5Error <0.015% rd.3 + 0.005% rg.3 typ. at
0 ... 300V
Error <0.04% rd. + 0.01% rg. guar. at
0 ... 300V
Distortion (THD+N) 40.015% typ., <0.05% guar.
Ranges 150V / 300V
Resolution 5mV / 10mV in range 150V / 300V
Connection 4mm (0.16in) banana sockets /
combination socket (1,2,3,N)
Generators, general
Frequency Range sine signals 10 ... 1000Hz
Range harmonics /
interharmonics 6
10 ... 3000Hz
Range transient
signals 6
DC ... 3.1kHz
Accuracy / drift ±0.5ppm / ±1ppm
Resolution <5µHz
Phase Angle range -360° ... +360°
Resolution 0.001°
Error at 50 / 60Hz <0.005° typ., <0.02° guar.
Bandwidth (-3 dB) 3.1kHz
Simulated power
S, P (calibration of
energy meters)
Accuracy 7Error <0.05% rd. typ., <0.1% rd. guar.
Temperature drift <0.001% / °C typ., <0.005% / °C guar.
Technical Data1
1 All data specified are guaranteed, except where indicated otherwise.
OMICRON guarantees the specified data for one year after factory calibration,
within 23°C ±5°C (73°F ±10°F) in the frequency range from 10 to 100Hz and
after a warm-up phase >25 minutes
2 Rload: 0 ... 0.5Ω
3 rd. = reading, rg. = range
4 THD+N: Values at 50/60Hz, >1A / 20V with 20kHz bandwidth
5 Rload: >250Ω
6 Amplitude derating at >1000Hz
7 Data are valid from 0.1 to 12.5A (current amplifier A or B) and 50 to 300V
(voltage amplifier) at 50/60Hz
Permissible load for current outputs:
Range 1.25A: 0 to 1 Ω and 1VA max., cos φ = 0.5 to 1
Range 12.5A: 0 to 0.5 Ω and 6VA max., cos φ = 0.5 to 1
Permissible load for voltage outputs:
10VA max. at 50 to 300V, cos φ = 0.5 to 1
CMC256plus
Technical Data CMC256plus (continued)
Low level outputs 1
Number of outputs 6 (12 with Option LLO-2)
Setting range 0 ... ±10Vpk
Max. output current 1mA
Accuracy Error <0.025% typ., <0.07% guar.
at 1 ... 10Vpk
Resolution 250µV
Distortion (THD+N) 2<0.015% typ., <0.05% guar.
Unconventional CT/VT simulation linear, Rogowski (transient and sinewave)
Overload indication Yes
Isolation SELV
Usability Completely independent from internal
amplifier outputs
Connection 16 pin combination socket (rear side)
Auxiliary DC supply
Voltage ranges 0 ... 264VDC, 0.2A / 0 ... 132VDC,
0.4A / 0 ... 66VDC, 0.8A
Power Max. 50W
Accuracy Error <2% typ., <5% guar.
Binary inputs
Number 10
Trigger criteria Toggling of potential-free contacts or DC
voltage compared to threshold voltage
Input characteristics 0 ... ±600VDC threshold or potential-free
Ranges 100mV / 1V / 10V / 100V / 600V
Resolution of threshold ±2 mV, ±20mV, ±200mV, ±2V,
±20V in ranges
Sample rate 10kHz (resolution 100µs)
Time stamping accuracy ±0.00015% of rd.3 ±70µs
Max. measuring time Infinite
Debounce / Deglitch time 0 ... 25ms / 0 ... 25ms
Counting function <3kHz at pulse width >150µs
Galvanic isolation 5 galvanically isolated groups (2+2+2+2+2)
Max. input voltage CATIV / 150V, CATIII / 300V,
CATII / 600V (850Vpk)
Counter inputs 100kHz
Number 2
Max. counting frequency 100kHz
Pulse width >3µs
Threshold voltage 6V
Voltage hysteresis 2V
Max. input voltage ±30V
Isolation SELV
Connection 16 pin combination socket (rear side)
Trigger on overload
Supported generators Current generators
Timer accuracy Error <1ms
Binary outputs, relays
Type Potential-free relay contacts, software
controlled
Number 4
Break capacity AC Vmax: 300VAC / Imax: 8A / Pmax: 2000VA
Break capacity DC Vmax: 300VDC / Imax: 8A / Pmax: 50W
Binary outputs, transistor
Type Open collector transistor outputs
Number 4
Update rate 10kHz
Imax 5mA
Connection 16 pin combination socket (rear side)
DC voltage measuring input
Measuring range 0 ... ±10V
Accuracy Error <0.003% rg. 3 typ.,
<0.02% rg. guar.
Input impedance 1 MΩ
DC current measuring input
Measuring range 0 ... ±1mA, 0 ... ±20mA
Accuracy Error <0.003% rg. 3 typ., <0.02% rg. guar.
Input impedance 15Ω
Analog AC+DC measuring inputs 4
Type AC + DC analog voltage inputs (current
measurement with external current
clamps or shunt resistors)
Number 10
Nominal input ranges (RMS values) 100mV, 1V, 10V, 100V, 600V
Amplitude accuracy Error <0.06% typ., <0.15% guar.
Bandwidth DC ... 10kHz
Sampling frequency 28.44kHz, 9.48kHz, 3.16kHz
Input impedance 500kΩ // 50pF
Transient input buffer at 28kHz 3.5 s for 10 input channels / 35 s for 1
input channel
Transient input buffer at 3kHz 31 s for 10 input channels / 5 min. for 1
input channel
Transient trigger Threshold voltage, power quality trigger:
sag, swell, harmonic, frequency, frequency
change, notch
Measurement functions I (AC + DC), V (AC + DC), phase, frequency,
power, harmonics, transient recording,
event recording, trend recording
Input overload indication Yes
Input protection Yes
Max. input voltage CATIV / 150V, CATIII / 300V, CATII /
600V (850Vpk)
Galvanic isolation 5 groups (2+2+2+2+2)
Time synchronization
Timing accuracy
IRIG-B synchronization with CMIRIG-B
GPS synchronization with CMGPS588
Error <1µs typ., <5µs guar.
Error <1µs typ., <5µs guar.
To external voltage Reference signal on binary input 10:
10 ... 300V / 15 ... 70Hz
Precision Time Protocol (PTP) IEEE1588-2008
IEEEC37.238-2011 (Power Profile)
With the unique PermaSync functionality, analog and Sampled Values outputs stay
permanently in sync with the internal CMC time reference.
When a CMC is time-synchronized (IRIG-B, GPS, or PTP), the output quantities are
continuously synchronized to the external time source.
With CMIRIG-B it is also possible to transmit the internal PPS signal of the CMC to the
device under test (e.g. PMUs or IEDs stimulated with a synchronized Sampled Values
data stream).
1 For directly testing relays with low level inputs by simulating signals from non
conventional CTs and VTs with low level interfaces and for controlling external
amplifier units
2 THD+N: Values at 50/60Hz, 20kHz measurement bandwidth, nominal value,
and nominal load
3 rd. = reading, rg. = range
4 Up to three inputs can be used for measuring RMS values, frequency, and
phase angle without the EnerLyzer software license. Full functionality requires
EnerLyzer software license
IEC61850 GOOSE 1
Simulation Mapping of binary outputs to data attributes in
published GOOSE messages.
Number of virtual binary outputs: 360
Number of GOOSEs to be published: 128
Subscription Mapping of data attributes from subscribed GOOSE
messages to binary inputs.
Number of virtual binary inputs: 360
Number of GOOSEs to be subscribed: 128
Performance Type 1A; Class P2/3 (IEC61850-5).
Processing time (application to network or vice
versa): <1ms
VLAN support Selectable priority and VLAN-ID
IEC61850 Sampled Values (Publishing) 1
Specification According to the “Implementation Guideline for
Digital Interface to Instrument Transformers Using
IEC61850-9-2“ of the UCA International Users Group
Sampling Rate 80 samples per cycle for nominal frequencies of
50Hz and 60Hz.
Synchronization Synchronization attribute (smpSynch) is set when the
CMC is in synchronized operation mode.
Sample count (smpCnt) zero is aligned with top of
the second.
Accuracy data see above
VLAN support Selectable priority and VLAN-ID
Max. number of SV streams 2 (with option LLO-2: 3 SV streams)
Power supply
Nominal input voltage 2 100–240VAC, 1-phase
Permissible input voltage 85 ... 264VAC
Nominal frequency 50/60Hz
Permissible frequency range 45 ... 65Hz
Rated current 12A at 115V / 10A at 230V
Connection Standard AC socket (IEC60320)
Environmental conditions
Operation temperature 30 ... +50°C (+32 ... +122°F)
Storage temperature -25 ... +70°C (-13 ... +158°F)
Humidity range Relative humidity 5 ... 95%, non-condensing
Vibration IEC60068-2-6 (20 m/s2 at 10 ... 150Hz)
Shock IEC60068-2-27 (15g/11ms half-sine)
Safety standards, electromagnetic compatibility
EMC The product adheres to the electromagnetic com pa-
ti bility (EMC) Directive 2004/108/EC (CE conform).
International IEC61326-1; IEC61000-6-4; IEC61000-3-2/3
USA FCC Subpart B of Part 15 ClassA
Safety The product adheres to the low voltage Directive
2006/95/EC (CE conform).
International / USA IEC61010-1 / UL61010-1
Canada CAN/CSA-C22.2 No61010-1-04
1 Testing with GOOSE and Sampled Values functionality requires software
licences for the corresponding configuration modules
2 For line inputs below 115VAC, it is not possible to drive all outputs (voltage
output, current output, Aux DC) simultaneously at full load. All other technical
specifications (e.g. the maximum output power of a single amplifier) are not
affected
3 For an operational temperature above +30°C (+86°F) a duty cycle of down to
50% may apply
4 PoE = Power over Ethernet
Miscellaneous
Weight 16.0kg (35.3lbs)
Dimensions
(W x H x D, without handle)
450 x 145 x 390mm (17.7 x 5.7 x 15.4in)
PC connection Two PoE 4 Ethernet ports:
• 10/100/1000 Base-TX
• IEEE802.3af compliant
• Port capability limited to one Class1 (3.84W) and
one Class2 (6.49W) powered device
USB port:
• USB 2.0 High Speed up to 480 Mbit/s
USB 1.1-compatible
Signal indication (LED) >42V for voltage outputs and AUX DC
Connection to ground (earth) 4mm (0.16in) banana socket (rear side)
Hardware diagnostics Self diagnostics upon each start-up
Galvanically separated groups The following groups are galvanically separated from
each other: mains, voltage amplifier output, current
amplifier group A/B, auxiliary DC supply, binary/
analog input
Protection All current and voltage outputs are fully overload and
short circuit proof and protected against external
high-voltage transient signals and over temperature
Certifications
Developed and manufactured under an ISO9001
registered system
Ordering Information
CMC256plus with Test Universe software
VE002701 CMC256plus Basic
VE002702 CMC256plus Protection
VE002703 CMC256plus Advanced Protection
VE002704 CMC256plus Universal
VE002705 CMC256plus Meter
VE002706 CMC256plus Measurement
VE002720 CMC256plus Recloser
CMC256plus with CMControl (without Test Universe software)
VE002715 CMC256plus with CMControlP
VE002719 CMC256plus with CMControlR
VE002721 CMC256plus with CMControlP App activation key
VE002723 CMC256plus with CMControlR App activation key
The CMControl can also be ordered as add-on together with a
CMC256plus with Test Universe software or as a later upgrade.
CMC256plus hardware options
VEHO2703 Option LLO-2 if ordered with a new unit
VEHO2704 Option LLO-2 if ordered as an upgrade

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