ESAB AristoMig U400 - Page 67

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Edition 050614

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Positions of potentiometers R87 and R103 on circuit board 20AP1 version2

Positions of potentiometers R87 and R103 on circuit board 20AP1 version 1

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Table of Contents2
Read this First4
Introduction5
Technical Data6
Aristomig U4006
Aristomig 4007
Aristotig 4008
Cooling Unit8
Aristoarc 4009
Wiring Diagrams10
Component Description10
Aristomig MMC Option13
Aristomig U400 Valid for Serial Number 322--XXX--XXXX to 524--XXX--XXXX14
Aristomig 400 Valid for Serial Number 105--XXX--XXXX to 524--XXX--XXXX16
Aristotig 400 Valid for Serial Number 105--XXX--XXXX to 524--XXX--XXXX18
Aristoarc 400 Valid for Serial Number 105--XXX--XXXX to 524--XXX--XXXX20
Description of Operation22
AP2 Interference Suppressor Board22
MMC Module22
2AP1 Interference Suppressor Board23
Autotransformer23
Cooling Unit24
15 The Power Module25
15AP1 Power Board26
15AP1:1 Mains Rectifier Bridge and Charging Circuit26
15AP1:2 Switching Circuit27
15AP1:3 Overvoltage and Undervoltage Protection27
15AP1 Component Positions28
15AP2 Gate Driver Board29
15AP2:1 Gate Driver Stages29
15AP2:2 Overvoltage and Undervoltage Protection29
15AP2 Component Positions31
20AP1 Control Board32
20AP1:1 Power Supply32
20AP1:2 Fan Control33
20AP1:3 the CAN Bus33
Terminating Resistors34
20AP1:4 Temperature Monitoring35
20AP1:5 Overvoltage and Undervoltage Protection36
20AP1:6 Communication with Relay Board 20AP236
20AP1:7 Gate Pulses36
20AP1:8 Current Sensor36
20AP1:9 Arc Voltage Input for Universal and MIG Machines37
20AP1:9 Arc Voltage Input for TIG and MMA Machines39
20AP1 Component Positions40
20AP2 Relay Board42
20AP2:1 Power Supply42
20AP2:2 External Shutdown42
20AP2:3 Starting Sequence43
20AP2:4 Power Supply to the Cooling Unit44
20AP2:5 Cooling Water Monitoring in MIG Welding Mode44
20AP2:5 Cooling Water Monitoring in TIG Welding Mode46
20AP2:6 TIG Gas Valve47
20AP2:7 TIG HF Starting Device47
20AP2:8 TIG Starting47
20AP2:9 Gas Flow Monitor48
20AP2 Component Positions48
20AP2 Circuit Diagram49
Remote Controls50
Fault Codes50
Service Instructions50
What Is ESD50
Service Aid51
Exchange Circuit Boards52
Dismantling53
Service Traps53
Checking the IGBT Transistors54
Mounting Components on the Heat Sink55
Replacing MCB 2FU155
Checking the Gate Pulses56
Pulses from Circuit Board 15AP2 to Transistors 15Q1 and 15Q257
Pulses from Circuit Board 20AP1 to Circuit Board 15AP258
Soft Starting60
Checking the Overvoltage and Undervoltage Threshold Values62
Calibrating the Current Sensor Signal64
Aristomig, Calibration of the Arc Voltage Input65
Aristotig & Aristoarc, Calibration of the Arc Voltage Input68
Replacing TR1 on 15AP1 with New Version of 2TC169
Electrical Installation of Built- -In Autotransformer70
Instruction Manual71
Safety71
Installation72
Lifting Instructions72
Mains Power Supply72
Terminating Resistor, Aristomig73
Operation73
Connections and Control Devices, Aristomig U40073
Connections and Control Devices, Aristomig 40074
Connections and Control Devices, Aristoarc 40074
Connections and Control Devices, Aristotig 40075
Turning on the Power Source75
Fan Control76
Overheating Protection76
Cooling Unit76
Remote Control Unit76
Maintenance77
Cleaning the Air Filter77
Topping up the Coolant77
Spare Parts78
Notes78

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ESAB AristoMig U400 - Page 67

Table of Contents

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