Manual

II
SD3100 Power Modules
Chapter 4 Maintenance and Troubleshooting
4.1 Recommended Test Equipment.......................................................................4-1
4.2 System Diagnostics..........................................................................................4-2
4.2.1 Power Module Faults.............................................................................4-2
4.2.1.1 Shorted SCR Fault (Bit 0)........................................................4-2
4.2.1.2 AC Line Synchronization Fault (Bit 3)......................................4-2
4.2.1.3 Instantaneous Overcurrent Fault (Bit 4) ..................................4-3
4.2.1.4 Conduction Timeout Fault (Bit 5).............................................4-3
4.2.1.5 Loss of Field Fault (Bit 6).........................................................4-3
4.2.2 Power Module Warnings........................................................................4-3
4.2.2.1 Three-phase Bridge SCR Not Firing Warning (Bit 0)...............4-3
4.2.2.2 Low Line Voltage/Phase Missing Warning (Bit 1)....................4-3
4.2.2.3 Synchronization Loss Fault Avoided Warning (Bit 3) ..............4-4
4.2.2.4 Current Reference Limit Warning (Bit 4) .................................4-4
4.2.2.5 Identification Test Error Warning (Bit 5) ..................................4-4
4.2.2.6 Field Power Module Overcurrent Warning (Bit 6)....................4-4
4.2.2.7 Fan Loss Warning (Bit 12).......................................................4-4
4.3 Component Replacement ................................................................................4-4
4.3.1 Spare Parts Kits.....................................................................................4-4
4.3.2 PMI Regulator........................................................................................4-5
4.3.3 Parallel Gate Amplifier...........................................................................4-5
4.3.4 Field Power Module ...............................................................................4-5
4.3.4.1 Replacing Internal Field Power Module AC Input Fuses.........4-5
4.3.4.2 Replacing Field Power Module Components ..........................4-6
Appendix A Technical Specifications........................................................................................... A-1
Appendix B Schematics............................................................................................................... B-1
Appendix C Replacement Parts................................................................................................... C-1
Index ...........................................................................................................................Index-1