Miller Electric 350Mpa Users Manual A DC23 5 Invision 350 MPa Sys

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Invision 350 MPa System

Issued Nov. 2007 • Index No. DC/23.5

™

Quick
Specs

Heavy Industrial Applications
Invision 350 MPa

Processes
Invision 350 MPa

Railroad
Truck/Trailer Manufacturing
Light Gauge and Tube
Lawn and Garden Equipment
Recreational Vehicles

MIG (GMAW)/Pulsed MIG (GMAW-P)
Flux Cored (FCAW)
Air Carbon Arc Cutting and Gouging
(CAC-A) (1/4 in carbons max.)

S-74 MPa

MIG (GMAW)
Flux Cored (FCAW)
Pulsed MIG (GMAW-P)

S-74 MPa

Heavy/Light Manufacturing
Metal Fabrication

MIG Welding
Power Source

Invision 350 MPa
Input Power Requires 3- or 1-Phase Power, 50/60 Hz
Rated Output 10 – 38 V, 5 – 425 A
Weight
Net: 80 lb (36.3 kg) Ship: 89.1 lb (40.4 kg)
S-74 MPa
Input Power 24 VAC, 10 A, 50/60 Hz
Electrode Wire Dia. Capacity .023 –5/64 in (0.6–2 mm)
Wire Speed 50–780 IPM (1.3–19.8 m/min)
Weight
Net: 58 lb (26 kg)

The Power of Blue .

®

Dynamic Pulsed MIG — highly-engineered
pulse programs default to give a tight
productive pulse arc. The operator can
fine tune the arc if desired.
Auto-Line™ Power Management
Technology allows for any input voltage
hook-up (208 – 575 V) with no manual
linking required, providing convenience
in any job setting. Ideal solution for dirty
or unreliable input power.

Invision 350 MPa System
Add the new S-74 MPa feeder for a
package that gives you the benefit of
Synergic-Pulsed MIG. As you increase/
decrease the wire feed speed, the pulse
parameters increase/decrease matching
the right amount of power output to
the wire speed.

Fan-On-Demand™ cooling system
operates only when needed, reducing
noise, energy use and the amount of
contaminants pulled through machine.
Large, dual digital meters are easy to
view and are presettable to ease setting
weld output.

SharpArc™ technology changes welding arc
characteristics in Pulsed MIG welding mode.

Inverter arc control technology provides
greater puddle control for outstanding MIG
weld performance.

Lightweight, aerospace-grade aluminum
case offers protection with the benefit of
reduced weight.

Line voltage compensation keeps welding
output constant even if input power varies
by +/-10%. XMT 350 models further expand
line voltage compensation on 460 VAC to
an amazing +37%, -59%.

Easy setup for MIG and Pulsed MIG
applications.

Power source is warranted for 3 years, parts and labor.
Original main power rectified parts are warranted for 5 years.
Gun warranted for 90 days, parts and labor.

Miller Electric Mfg. Co.

International Headquarters

Web Site

An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA

Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125

www.MillerWelds.com

Specifications

(Subject to change without notice.)

Input
Power

Rated Output
at 60%
Duty Cycle

Voltage
Range in
CV Mode

Amperage
Range in
CC Mode

Max. OpenCircuit
Voltage

Amps Input at Rated Load Output, 60 Hz,
208 V 230 V 400 V 460 V 575 V KVA KW

ThreePhase

350 A at
34 VDC

10 – 38 V

5 – 425 A

75 VDC

40.4

36.1

20.6

17.8

14.1

14.2 13.6

SinglePhase

300 A at
32 VDC

10 – 38 V

5 – 425 A

75 VDC

60.8

54.6

29.7

24.5

19.9

11.7 11.2

Dimensions

Weight

H: 17 in (432 mm)
W: 12-1/2 in (318 mm)
D: 24 in (610 mm)

80 lb
(36.3 kg)

Certified to both the Canadian and U.S. Standards for welding equipment.

Additional Features
Exceptional electrical efficiency. At 400 A,
efficiency is 87.24%!
350 A of welding output at 60% duty cycle
with superior low-end performance.

Power factor of .95 enables smaller
fuses/breakers and primary wiring. Primary
amperage draw at rated output is 25% less
than the competition.

Ultra-tough, polycarbonate-blended cover
for control panel protects front controls
from damage.

Performance Data
CV VOLT/AMP CURVE

DUTY CYCLE CHART
100

500
425
400

80
70

300
1-PHASE OPERATION

VOLTAGE

WELDING AMPERES

350

90
3-PHASE OPERATION

250
6 AWG POWER CORD
200

60
50
MAX

40

8 AWG POWER CORD
30
150

20
MIN

10
0

100
10

15

20

25

30

DUTY CYCLE

2

40

50

60

70 80 90 100

0

100

200

300

AMPS

400

500

Control Panel
The Invision™ 350 MPa and S-74 MPa combine for a synergic system that simplifies and
improves MIG and Pulsed MIG welding applications for industrial manufacturing.

MPa
6

1
OUTPUT ON

Setup

2
3
4

7
8
9
Arc Control
Process
Wire/Gas

5
10
SETUP

1.
2.
3.
4.
5.
6.
7.

Output ON Indicator Light
Left Display
Voltage Indicator
Arc Length Indicator
Wire Feeder Receptacle
Adjustment Control
Right Display

8. Setup Indicator
9. Amperage Indicator
10. Setup Indicator Lights
• Arc Control Indicator
• Process Indicator
• Wire/Gas Type Indicator
• Setup Button

MPa: M (MIG), P (Pulse), a (Advanced
Arc Control). Advanced arc control
enables an improved pulse welding arc.
The operator has more control over puddle
and bead characteristics using SharpArc™.
In addition, the unit provides a more robust
and stable arc at very low arc length, reducing
heat input, and providing the ability to weld
on a wider range of material thickness.
Synergic pulsing is available only with the
S-74 MPa dedicated wire feeder.
What are some benefits of
Synergic-Pulsed MIG?
1. Easier to set up
2. No more changing wire speed, and
then having to go back to reset the
welding output.

Additional Features
SharpArc™
Changes welding arc characteristics in
Pulsed MIG (GMAW-P) welding mode.

Built-In Pulsed MIG Programs

(0 setting)

(50 setting)

The Invision 350 MPa has built-in dynamic Pulsed MIG capabilities. See the table below for the wide
range of Pulsed MIG (GMAW-P) welding applications the Invision 350 MPa can handle.
Low Setting
Wire Types

Gas Types

Steel

.035 STL
.045 STL

ARGN CO2 (Argon/Carbon Dioxide)
ARGN OXY (Argon/Oxygen)

Metal Core

.035 MCOR
.045 MCOR
.052 MCOR

ARGN CO2 (Argon/Carbon Dioxide)

Stainless Steel

.035 SSTL
.045 SSTL

TRI MIX (Tri-gas mixture)
ARGN OXY (Argon/Oxygen)
ARGN CO2 (Argon/Carbon Dioxide)

High Setting

Note: Setting has a subtle effect on arc that is
exaggerated in graphic for visual emphasis.

If a gas is used other than what is listed
on the Pulsed MIG welding program
chart (below left), the SharpArc™ can be
adjusted to help customize your arc to the
gas being used.

.035 AL4X (4000 Series)
3/64 AL4X (4000 Series)
.035 AL4X (5000 Series)
3/64 AL4X (5000 Series)

ARGN (Argon)

Lower SharpArc™ settings widen the arc
cone, increase puddle fluidity and flattens
the weld bead.

Nickel

.035 NI
.045 NI

ARGN HE (Argon/Helium)

Silicon Bronze

.035 SIBR

ARGN (Argon)

Auto Remote Sense™
Enables unit to automatically use remote
control if connected to remote control
receptacle.

Copper Nickel

.045 CUNI

HE ARGN (Helium/Argon)

Aluminum

Dinse International-style weld disconnects
Provide high-quality weld cable connections.
Dinse and Tweco connectors are available.
When Dinse connectors are specified, two
connectors are supplied with the unit.
Optional 115 VAC auxiliary power
Provides 10 amps of circuit-breakerprotected power for water circulators, etc.

3

S-74 MPa Single Feeder Features
Posifeed™ Wire Drive Assembly Features
(Synergic Pulsed MIG when connected to the Invision 350 MPa)
24 VDC high-torque, permanent-magnet motor.
Quick-change drive rolls.
Quick-release, calibrated drive-roll pressure adjustment arm allows drive roll change
without losing spring preload setting.
Four sealed ball bearing all-gear-driven drive-roll carriers for smooth, positive and
accurate wire feed with long uninterrupted service life.
Easy loading and threading of welding wire without having to release the drive-roll
pressure arm.
Solid-state speed control and brake circuit eliminates the need for electrical/
mechanical relays and increases service life.
Uses Miller standard 1-5/8 in (41 mm) diameter drive rolls.
Quick-connect for all Miller guns.
Covered drive rolls — easy access, heavy-duty, molded composite cover over
drive assembly.
Floating positive drive systems provide trouble-free feeding on a variety of wires.
Tool-less rotatable drive assembly
allows operator to rotate the drive
housing, eliminating severe bends in the
wire feed path which reduce gun liner
life. Also aids in feeding difficult wires.

Specifications

Dual tension control adds flexibility
for the operator to fine-tune the
pressure on the wire independently
when feeding a variety of wires.

(Use with CV
Power Sources.)

(Subject to change without notice.)

Input Power

Electrode Wire Diameter Capacity

Wire Speed

Dimensions

Net Weight

24 VAC, 10 A, 50/60 Hz

.023–5/64 in (0.6–2 mm)

50–780 IPM (1.3–19.8 m/min)
Optional High Speed Motor:
90–1440 IPM (2.3–36.6 m/min)

H: 14 in (356 mm)
W: 12 in (305 mm)
D: 26-1/2 in (673 mm)

58 lb (26 kg)

Control Panel
1

2

3

5

4

6

S-74 MPa
24V Wire Feeder

4

1. Voltage Display Meter
2. Wire Speed Display Meter
3. Wire Feed Speed Select
4. Trigger Hold
5. Voltage Select
6. Jog/Purge

Invision 350 MPa System Components
™

Invision™ 350 MPa MIGRunner ™ #907 398
Comes Complete With:
Invision 350 MPa power source
S-74 MPa wire feeder
Bernard® Q™-Gun
Consumables
.035/.045 in drive roll kit
NEW! Industrial MIG 4/0 Kit with
Dinse Connector
MIGRunner Cart with cylinder rack
Bottom tray will hold optional Coolmate 3
(sold separately)

Invision™ 350 MPa Stationary Package
#951 113
Comes Complete With:
Invision 350 MPa power source
S-74 MPa wire feeder
Bernard® Q™-Gun
Consumables
.035/.045 in drive roll kit
NEW! Industrial MIG 4/0 Kit with
Dinse Connector

For Your Aluminum Welding Applications
Invision™ 350 MPa Push-Pull Aluminum
Package #951 115
Comes Complete With:
Invision 350 MPa power source
XR™-Control Box
25 ft (7.6 m) air-cooled XR-Aluma-Pro™ Gun

5

Genuine Miller Accessories
Running Gear

Wire Feeders/Guns
MIGRunner ™ Cart
#195 445
Small footprint
and easily
maneuverable,
with cylinder
rack low enough
that you do not
have to lift bottles.

Industrial MIG 4/0 Kit with Dinse
Connector #300 405
This useful pulse-ready MIG kit can be
purchased separately. Includes Smith®
flowmeter/regulator with 10 ft (3 m) gas
hose, 10 ft (3 m) 4/0 feeder weld cable with
Dinse connector on one end and a lug on
the other, 15 ft (4.6 m) work cable with
Dinse connector on one end and 600-amp
C-clamp on the other.

XMT Cylinder Cart
#042 537
Carries two 160 lb
(72.6 kg) gas
cylinders, or one
gas cylinder and
one coolant
system for TIG
(GTAW) welding.
Feeder mounts to
tray above power
source.

Process Selector Control #042 872
Designed for use with dual wire feeders,
applications where electrical isolation and/or
polarity reversing of weld current is required,
and for welding process changes. Includes
115 VAC/2 amp receptacle, two 14-pin
receptacles and a 10 ft (3 m) 14-pin cord.

Universal
Carrying Cart and
Cylinder Rack
#042 934
Holds power
source, and gas
cylinder up to 56 in
(142.2 cm) high
measuring 6 to 9 in
(15.2 to 22.8 cm)
in diameter.

Protective Cover

#195 478
Mildew and water resistant, odor-free
cover protects your machine’s finish.
For 300/350 A inverters: Invision, XMT,
Maxstar and Dynasty.

70 Series
S-74 MPa #300 411*
S-74S
#195 057
S-74D
#195 058
S-74DX
#195 059
Wire feeder features Posifeed™ wire drive
assembly and handles a variety of wires up to
1/8 in. Comes with FREE Bernard® Q™-Gun.
See Lit. Index No. M/3.0.
*Designed exclusively for Invision 350 MPa for
Synergic Pulsed MIG benefits.

XR™-Control #181 538
Push-pull wire feed
system offers
unparalleled performance
for aluminum MIG
welding. See Lit.
Index No. M/1.7.

XR™-Aluma-Pro™ Gun*
#300 000 15 ft (4.6 m) air-cooled
#300 001 25 ft (7.6 m) air-cooled
#300 264 35 ft (10.6 m) air-cooled
#300 003 15 ft (4.6 m) water-cooled
#300 004 25 ft (7.6 m) water-cooled
#300 265 35 ft (10.6 m) water-cooled
This easy-to-use and easy-to-maintain
gooseneck-style MIG gun is designed for
push-pull wire feed systems (with required
XR-Control). Available in air- or watercooled versions. Trigger hold reduces
operator fatigue (feature available when
paired with XR-Control). Gun design allows
for better access into tight spots. See Lit.
Index No. M/1.7.
*XR-Control is required to operate this gun with
the Invision 350 MPa System.

6

Genuine Miller Accessories

(continued)
WC-24 Weld Control
#137 549
Designed for use with
Miller CV power sources
supplying 24 VAC and
14-pin receptacles. For
use with Spoolmatic
30A spool gun.

22A #193 066
Simple, reliable, 24 VAC constant-speed
semiautomatic wire feeder, best suited for
small diameter wires. Accommodates up to
60 lb (27.2 kg) spool of welding wire when
using optional wire reel assembly. Comes
with FREE Bernard® Q™-Gun! See Lit. Index
No. M/11.0.

24A #195 112
Simple, reliable, 24 VAC constant-speed
semiautomatic wire feeder, best suited for
small diameter wires. Remote voltage is
standard. Features four gear-driven drive
rolls for larger wire sizes. Accommodates
up to 60 lb (27.2 kg) spool of welding wire
when using optional wire reel assembly.
Comes with FREE Bernard® Q™-Gun! See
Lit. Index No. M/11.0.

Spoolmatic® 30A #130 831
A 1-lb, air-cooled spool gun that extends
the weld process range by adding a handy
portable system for small wire MIG. Rated
200 A at 100% duty cycle. Includes 30 ft
(9.1 m) cable assembly. (WC-24 #137 549
for 14 pin.)

Water Coolant Systems
For more information, see the Miller Coolant
Systems literature sheet, Index No. AY/7.2.

Coolmate™ 3
#043 007 115 VAC
#043 008 230 VAC
For use with water-cooled torches rated up
to 600 amps. Unique paddle-wheel
indicator, external filter and easy-fill spout.
Coolmate V3 #043 009 115 VAC
For use with water-cooled torches rated up
to 500 amps. Vertical design conveniently
mounts to Miller cylinder rack in place of
one cylinder.
™

Coolmate™ 4 #042 288 115 VAC
For use with water-cooled torches rated up
to 600 amps. Tough molded polyethylene
case with carrying handle.

International-Style Connectors
Note: XMT 350 power sources are equipped with
International-style connectors for secondary
connections. (Power source is shipped with two
50-mm male International-style plugs for use with
#1 or #2 AWG size cable.)

International/Tweco®
Adapter #042 465
International/Cam-Lok
Adapter #042 466
One-piece adapter with International-style
male plug (to power source) on one end and
female receptacle (Tweco or Cam-Lok for
weld cable connection) on other end.
International-Style Connector Kit
#042 418 50 mm
Accepts #4 or #1/0 AWG cable size. Required
if male plugs shipped with power source must
be replaced, or if additional plugs are needed.
#042 533 70 mm
Accepts #1/0 or #2/0 AWG cable size.
Required if #1/0 or #2/0 AWG size cable is
to be used.
Kit includes one International-style male
plug which attaches to the work and/or weld
cables and plugs into the International-style
receptacles on the power source.
Extension Kit for International-Style
Cable Connectors
#042 419 50 mm
Accepts #4 or #1/0 AWG size cable.
#042 534 70 mm
Accepts #1/0 or #2/0 AWG size cable.
Used to adapt or extend weld and/or work
cables. Kit includes one male Internationalstyle plug and one in-line female
International-style receptacle.

Coolant #043 810
Sold in cases of four 1-gallon recyclable
plastic bottles. Miller coolants contain a
base of ethylene glycol and deionized water
to protect against freezing to -37˚F (-38˚C)
or boiling to 227˚F (108˚C). Also contains a
compound that resists algae growth.

7

Ordering Information
Power Source and Options

Stock No.

Description

Invision™ 350 MPa

#907 397
#907 397-01-1

208 – 575 VAC with Auto-Line™
208 – 575 VAC with Auto-Line™ and Auxiliary Power

Invision™ 350 MPa System

Qty.

See page 5 for different packages and components

Accessories
Industrial MIG 4/0 Kit with Dinse Connector

#300 405

See page 6

WC-24

#137 549

For use with Spoolmatic® 30A and power sources with 14-pin

Process Selector Control

#042 872

Extension Cords (For 24 VAC wire
feeders and remote controls)

#043 690
#043 691

25 ft (7.6 m)
50 ft (15 m)

Running Gear
MIGRunner™ Cart

#195 445

XMT Cylinder Cart

#042 537

Universal Carrying Cart and Cylinder Rack

#042 934

Protective Cover

#195 478

Wire Feeders/Guns
70 Series

#300 411
#195 057
#195 058
#195 059

S-74 MPa. Designed exclusively for Invision 350 MPa for
Synergic Pulsed MIG benefits
S-74S. See Lit. Index No. M/3.0
S-74D. See Lit. Index No. M/3.0
S-74DX. See Lit. Index No. M/3.0

XR™-Control

#181 538

See Lit. Index No. M/1.7

22A

#193 066

See Lit. Index No. M/11.0

24A

#195 112

See Lit. Index No. M/11.0

Spoolmatic® 30A Spool Gun

#130 831

Includes 30 ft (9.1 m) cable assembly

XR-Aluma-Pro™ Gun

#300 000
#300 001
#300 264
#300 003
#300 004
#300 265

15 ft (4.6 m) air-cooled
25 ft (7.6 m) air-cooled
35 ft (10.6 m) air-cooled
15 ft (4.6 m) water-cooled
25 ft (7.6 m) water-cooled
35 ft (10.6 m) water-cooled

Water Coolant Systems

See page 7. See Lit. Index No. AY/7.2

International-Style Connectors

See page 7

Date:

Total Quoted Price:

Distributed by:

Litho in USA

Price



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