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ESAB ESABMig 300i User Manual

ESAB ESABMig 300i
106 pages
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Origo™, Aristo®
Service manual
0740 800 172 GB 20180918
Valid for: serial no. 535-xxx-xxxx to 209-xxx-xxxx
Mig L3000i, Mig C3000i,
Tig3000i, Tig 3000i AC/DC

Table of Contents

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ESAB ESABMig 300i Specifications

General IconGeneral
Input Frequency50/60 Hz
Wire Diameter0.8-1.2 mm
Efficiency85%
Power Factor0.93
Output Current Range30-300 A
CoolingAir-cooled
Protection ClassIP23

Summary

TECHNICAL DATA

WIRING DIAGRAM

DESCRIPTION OF OPERATION

15 The power module Description

Describes the power module, responsible for converting mains power to welding voltage via dual forward inverter.

15AP1 Power board Description

Details the 15AP1 power board, covering charging, gate driver, switching, and protection circuits.

20AP1 Control board Description

Details the 20AP1 control board, which monitors and controls all power source functions.

FAULT CODES

Fault log

Describes how faults are documented in the fault log and how to read them via ESAT.

Summary of fault codes

Provides a summary table of fault codes and the units they affect.

Power source fault codes

Details fault codes specific to the power source unit, including descriptions and actions.

AC unit fault codes

Details fault codes specific to the AC unit, including descriptions and actions.

Wire feed unit fault codes

Details fault codes specific to the wire feed unit, including descriptions and actions.

SERVICE INSTRUCTIONS

Checking power board 15AP1

Provides instructions and diagrams for checking the 15AP1 power board components and resistance values.

Checking secondary board 15AP2

Details how to check the diode modules and NTC resistors on the 15AP2 secondary board.

Checking IGBT modules of AC power board 18AP2

Instructions for checking IGBT modules on the 18AP2 AC power board, including resistance and diode tests.

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