Miller Electric 350MPa User Manual

Invision 350 MPa System	Issued Nov. 2007 • Index No. DC/23.5
™	MIG Welding
	Power Source

Quick

Specs

	Heavy Industrial Applications	Processes
	Invision 350 MPa	Invision 350 MPa
	Railroad	MIG (GMAW)/Pulsed MIG (GMAW-P)
	Truck/Trailer Manufacturing	Flux Cored (FCAW)
	Light Gauge and Tube	Air Carbon Arc Cutting and Gouging
	Lawn and Garden Equipment	(CAC-A) (1/4 in carbons max.)
	Recreational Vehicles	S-74 MPa
	S-74 MPa
		MIG (GMAW)
	Heavy/Light Manufacturing	Flux Cored (FCAW)
	Metal Fabrication	Pulsed MIG (GMAW-P)

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.

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.

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

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%.

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.

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

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

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	Phone: [phone]	www.MillerWelds.com
					1635 West Spencer Street	USA FAX: [phone]
					Appleton, WI 54914 USA	Canadian FAX: [phone]
						International FAX: [phone]

Specifications (Subject to change without notice.)

Rated Output

Voltage

Amperage

Max. Open-

Input

at 60%

Range in

Range in

Circuit

Amps Input at Rated Load Output, 60 Hz,

Power

Duty Cycle

CV Mode

CC Mode

Voltage

208 V

230 V

400 V

460 V

575 V

KVA

KW

Dimensions

Weight

Three-

350 A at

10–38 V

5–425 A

75 VDC

40.4

36.1

20.6

17.8

14.1

14.2

13.6

H: 17 in (432 mm)

80 lb

Phase

34 VDC

W: 12-1/2 in (318 mm)

(36.3 kg)

D: 24 in (610 mm)

Single-

300 A at

10–38 V

5–425 A

75 VDC

60.8

54.6

29.7

24.5

19.9

11.7

11.2

Phase

32 VDC

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

DUTY CYCLE CHART

	500												100
	425												90
	400	3-PHASE OPERATION											80
	350
WELDING AMPERES	300												70
		1-PHASE OPERATION										VOLTAGE	60
	250				6 AWG POWER CORD								50
	200				8 AWG POWER CORD								40
													30
	150												20
													10
	100												0
	10	15	20	25	30	40	50	60	70	80	90	100

DUTY CYCLE

CV VOLT/AMP CURVE

			MAX
			MIN
0	100	200	300	400	500
			AMPS

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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.

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6

MPa

MPa: M (MIG), P (Pulse), a (Advanced

OUTPUT ON

2

Setup

Arc Control). Advanced arc control

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enables an improved pulse welding arc.

3

8

The operator has more control over puddle

4

9

™

and bead characteristics using SharpArc.

In addition, the unit provides a more robust

Arc Control

Process

and stable arc at very low arc length, reducing

Wire/Gas

heat input, and providing the ability to weld

5

on a wider range of material thickness.

10

Synergic pulsing is available only with the

SETUP

S-74 MPa dedicated wire feeder.

What are some benefits of

Synergic-Pulsed MIG?

1.

Output ON Indicator Light

8. Setup Indicator

1. Easier to set up

2. No more changing wire speed, and

2.

Left Display

9. Amperage Indicator

then having to go back to reset the

3.

Voltage Indicator

10. Setup Indicator Lights

welding output.

4.

Arc Length Indicator

• Arc Control Indicator

5.

Wire Feeder Receptacle

• Process Indicator

Additional Features

6.

Adjustment Control

• Wire/Gas Type Indicator

7.

Right Display

• Setup Button

SharpArc™

Changes welding arc characteristics in

Pulsed MIG (GMAW-P) welding mode.

Built-In Pulsed MIG Programs

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.

	Wire Types			Gas Types
Steel		.035	STL	ARGN CO2 (Argon/Carbon Dioxide)
		.045	STL	ARGN OXY (Argon/Oxygen)
Metal Core		.035	MCOR	ARGN CO2 (Argon/Carbon Dioxide)
		.045 MCOR
		.052 MCOR
Stainless Steel		.035	SSTL	TRI MIX (Tri-gas mixture)
		.045	SSTL	ARGN OXY (Argon/Oxygen)
				ARGN CO2 (Argon/Carbon Dioxide)
Aluminum		.035	AL4X (4000 Series)	ARGN (Argon)
		3/64 AL4X (4000 Series)
		.035	AL4X (5000 Series)
		3/64 AL4X (5000 Series)
Nickel		.035	NI	ARGN HE (Argon/Helium)
		.045	NI
Silicon Bronze		.035	SIBR	ARGN (Argon)
Copper Nickel		.045	CUNI	HE ARGN (Helium/Argon)

	(0 setting)			(50 setting)
Low Setting			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.

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

Auto Remote Sense™

Enables unit to automatically use remote control if connected to remote control receptacle.

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-breaker- protected power for water circulators, etc.

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