Miller Auto-Line Invision 352 MPa - Page 74

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TM-246193 Page 70 Invision 352 MPa

Figure 10-2. Circuit for Invision 352 MPa (208−575 Volt) Eff. w/Serial No. MB380101A thru MB520505A

Main Page

Table of Contents3
Section 1 − Safety Precautions for Servicing5
Symbol Usage5
Servicing Hazards5
California Proposition 65 Warnings6
EMF Information6
Section 2 − Definitions7
Manufacturer Safety Symbols and Definitions7
Miscellaneous Symbols and Definitions9
Section 3 − Specifications10
Features and Benefits10
Arc Controls10
Serial Number and Rating Label Location10
Software Licensing Agreement10
Information about Default Weld Parameters and Settings10
Unit Specifications10
Dimensions and Weight11
Environmental Specifications11
Duty Cycle and Overheating12
Static Output Characteristics12
Section 4 − Installation13
Selecting a Location13
Selecting Cable Sizes14
Weld Output Terminals14
Remote 14 Receptacle Information15
Optional 115 Volts AC Duplex Receptacle and Supplementary Protectors15
Electrical Service Guide16
Connecting 1-Phase Input Power18
Connecting 3-Phase Input Power20
Section 5 − General Operation22
Front Panel22
Configuration Option Menu23
Factory Reset Procedure24
Section 6 − Gmaw/Gmaw-P/Fcaw Operation25
Typical Connection for Remote Control Feeder GMAW/GMAW-P/FCAW Process25
MIG Welding Mode - GMAW/FCAW Process26
MIG - Wire and Gas Selection Table27
Pulsed MIG Welding Mode - GMAW-P Process28
Pulsed MIG - Wire and Gas Selection Table29
Remote Process Select30
Section 7 − Theory of Operation32
Section 8 − Troubleshooting35
Troubleshooting Flowchart35
SECTION 8 − TROUBLESHOOTING (Continued)35
Checking Unit before Applying Power36
Measuring/Discharging Input Capacitor Voltage before Working on Unit37
Input Pre-Regulator Module (MOD1)38
Input Pre-Regulator Module (MOD1) Test Point Values38
Inverter Module (MOD2)39
Inverter Module (MOD2) Test Point Values39
Power Interconnect Board PC240
Power Interconnect Board PC2 Test Point Values40
Control Board PC141
Control Board PC1 − Test Point Values41
Power Switch (S1)42
Output Diodes43
Output Diodes D1, D2 Test Point Values43
Troubleshooting Table44
Help Displays46
Factory Reset Procedure47
Troubleshooting Circuit Diagram48
Control Board PC1 Testing Information (Use with Section 8-20)50
Control Board PC1 Test Point Values51
Control Board PC1 - Power off Checks54
Control Board PC1 − Power off Checks55
Power Interconnect Board PC2 Testing Information (Use with Section 8-24)56
Power Interconnect Board PC2 Test Point Values57
Power Interconnect Board (PC2) - Power off Checks (Prior to MB510232A)60
Power Interconnect Board (PC2) - Power off Checks (Prior to MB510232A)61
Power Interconnect Board (PC2) - Power off Checks62
(Effective with MB510232A Thru MH474076U)62
Power Interconnect Board (PC2) - Power off Checks (Effective with MB510232A Thru MH474076U)63
Power Interconnect Board (PC2) - Power off Checks (Effective with MH474077U)64
Power Interconnect Board (PC2) - Power off Checks (Effective with MH474077U)65
Front Panel/Display Board PC3 Testing Information (Use with Section 8-32)66
Front Panel/Display Board PC3 Test Point Values67
Checking Unit Output after Servicing68
Section 9 − Maintenance69
Routine Maintenance69
Blowing out Inside of Unit69
Removing Fan Motor70
Section 10 − Electrical Diagrams71

Miller Auto-Line Invision 352 MPa - Page 74

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