Lincoln Electric INVERTEC V300-PRO SVM105-B User Manual

INVERTEC V300-PRO
SVM105-B
April, 2007
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However,
your overall safety can be
increased by proper installation
. . . and thoughtful operation on
your part. DO NOT INSTALL,
OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READ-
ING THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.
SERVICE MANUAL
For use with machines having Code Number : 9825 THRU 10450
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• World's Leader in Welding and Cutting Products •
Copyright © 2007 Lincoln Global Inc.

Lincoln Electric INVERTEC V300-PRO SVM105-B Specifications

General

Output Current Range	5-300A
Output Voltage Range	10-32V
Duty Cycle	60% at 300A
Input Voltage	208/230/460 V
Rated Output	300 A at 32 V, 60% Duty Cycle
Processes	MIG, Stick, TIG, Flux-Cored
Wire Feed Speed Range	50-800 ipm (1.27-20.3 m/min)
Wire Size Range	0.023-0.045 in (0.6-1.2 mm)

Summary

Safety Precautions

California Proposition 65 Warnings

Health warnings related to diesel and engine exhaust emissions.

Engine Operation Safety

Guidelines for safe operation of engine-powered equipment.

Electric and Magnetic Field Hazards

Electrical Shock and Burn Hazards

Warnings about electric shock from circuits and arc rays.

Fumes, Gases, and Welding Sparks

Safety advice regarding fumes, gases, and welding sparks.

Fire and Explosion Hazards

Precautions against fire and explosion from welding sparks and cylinders.

General Electrical Equipment Safety

Installation Guide

Technical Specifications and Physical Dimensions

Product Description and Location Requirements

Electrical Installation and Voltage Setup

Guidance on connecting power and setting input voltage.

Power Input Connection

Wire Feeder and Accessory Connections

Output Cables and Disconnect Plugs

Operation Procedures

Operating Instructions and Safety Reminders

Essential operating instructions and safety guidelines.

Duty Cycle and Control Functions

Mode Switch and Arc Force Control

Recommended Settings and Meter Controls

Maintenance Procedures

Input Filter Capacitor Discharge Procedure

Safety procedure for discharging input filter capacitors.

Preventive Maintenance Schedule

Protection Mechanisms

PC Board Replacement

Troubleshooting and Repair

How to Use the Troubleshooting Guide

Step-by-step guide to diagnosing machine malfunctions.

PC Board Troubleshooting and Replacement

Procedures for diagnosing and replacing PC boards.

Input Filter Capacitor Conditioning

Procedure to condition input filter capacitors.

Input Filter Capacitor Discharge Procedure

Safety procedure for discharging capacitors before testing.

Output Pilot Circuit Test

Procedure to test thermostats, transformer, and output switch.

Protection Board Output Test

Procedure to determine if the protection board is faulty.

Capacitor Balance Test

Procedure to test capacitor and bleeder resistor conditions.

Switch Board Test

Procedure to test the functionality of the switch boards.

Snubber Resistor Test

Output Diode Test

Input Rectifier Test

Overcurrent Protection Test

Test for correct operation of overcurrent trigger and limiting circuits.

Overvoltage Protection Test

Procedure to test overvoltage protection and related circuits.

Thermal Protection Test

Procedure to test thermal protection thermostats and circuitry.

Power Board Test

Procedure to determine if the power board or its circuitry is defective.