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ESAB
Welding System
Caddy Tig 1500i TA34
ESAB Caddy Tig 1500i TA34 User Manual
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Caddy™
Service
manual
0740
800
186
GB
20160202
V
alid
for:
serial
no.
803-
to
843-xxx-xxxx
T
ig
1500i
T
A34
T
ig2200iT
A33/T
A34
2
Table of Contents
Table of Contents
2
Read this First
4
Introduction
5
Technical Data
6
Wiring Diagram
8
Description of Operation
14
MMC Module
14
2AP1 Power Supply Board
14
2AP1:1 Interference Suppressor Circuit
15
2AP1:2 Primary Circuit
15
2AP1:3 Secondary Circuit
16
2AP1 Component Positions
17
10AP1 TIG Board
18
10AP1 Component Positions
19
15AP1 Power Board
21
Charging Circuit
21
Power Factor Corrector (PFC)
21
Gate Driver Stages
22
Switching Circuit
22
Supply to 2AP1
22
15AP1 Component Positions
23
15AP2 Secondary Board
23
15AP2 Component Positions
25
20AP1 Control Board
25
20AP1:1 Power Supply
26
20AP1:2 the CAN Bus
28
Starting Sequence
28
Communication Interruptions
29
Terminating Resistors
29
20AP1:3 Control Panel Interface Circuits
29
20AP1:4 Pulse Width Modulator
29
20AP1:5 Temperature Monitoring
30
20AP1:6 Shunt and Current Control Amplifier
30
20AP1:7 Arc Voltage Feedback
31
20AP1:8 TIG Functions
32
20AP1:9 Welding Process Control
32
20AP1:10 Cooling Unit Control
33
20AP1 Component Positions
34
Remote Controls
36
Fault Codes
37
Fault Log
37
Summary of Fault Codes
37
Fault Code Description
38
Welding Data Unit
38
Power Source
38
Esab Ab
38
Service Instructions
40
What Is ESD
40
Service Aid
40
Checking the Semiconductor Module of 15AP1
42
Checking Rectifier and Freewheel Diodes
43
Checking the Gate Pulses
44
Soft Starting
46
Mounting Components on the Heat Sink
47
Spare Parts
49
4
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ESAB Caddy Tig 1500i TA34 Specifications
General
Brand
ESAB
Model
Caddy Tig 1500i TA34
Category
Welding System
Language
English
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