ASTAT XL Service Manual Contents
Contents
1 Caution Statements ................................................................................................................................. 2
1.1 Electrical Shock Risk ........................................................................................................................................................................................ 2
1.2 Power-up procedure ....................................................................................................................................................................................... 3
1.3 Stored charge ..................................................................................................................................................................................................... 3
1.4 Short circuit .......................................................................................................................................................................................................... 3
1.5 Disposal Instructions ....................................................................................................................................................................................... 3
2 Functional Tests ....................................................................................................................................... 4
2.1 Power Circuit Test ............................................................................................................................................................................................. 4
2.2 Start Performance Test .................................................................................................................................................................................. 4
2.3 Run Performance Test .................................................................................................................................................................................... 5
2.4 Bypass Contactor Test ................................................................................................................................................................................... 5
2.5 Control Input Test ............................................................................................................................................................................................. 5
2.6 After Repair Tests .............................................................................................................................................................................................. 5
3 Troubleshooting ....................................................................................................................................... 7
3.1 Protection Responses ..................................................................................................................................................................................... 7
3.2 Trip Messages ..................................................................................................................................................................................................... 7
3.3 General Faults ...................................................................................................................................................................................................11
3.4 SCRs .......................................................................................................................................................................................................................13
4 Service Instructions ............................................................................................................................... 14
4.1 QLxxB0023D to QLxxB0053D (G1B) .......................................................................................................................................................15
4.2 QLxxB0076D to QLxxB0105D (G1B) .......................................................................................................................................................16
4.3 QLxxB0145D to QLxxB0220D (G2B) .......................................................................................................................................................17
4.4 QLxxB0255D to QLxxB0425D (G3B) .......................................................................................................................................................18
4.5 QLxxX0255D (G3C) ..........................................................................................................................................................................................19
4.6 QLxxB0500D to QLxxB1000D (G4B) .......................................................................................................................................................20
4.7 QLxxX0360D to QLxxX0930D (G4C) .......................................................................................................................................................21
4.8 QLxxX1200D to QLxxX1600D (G5C) .......................................................................................................................................................22
5 Spare Parts .............................................................................................................................................. 23
5.1 Main Control PCB ............................................................................................................................................................................................23
5.2 Model PCB ...........................................................................................................................................................................................................25
5.3 Backplane PCB .................................................................................................................................................................................................26
5.4 Bypass Driver PCB ..........................................................................................................................................................................................27
5.5 SCRs and SCR Connections .......................................................................................................................................................................28
5.6 Power Assemblies ...........................................................................................................................................................................................30
5.7 Fans ........................................................................................................................................................................................................................31
5.8 Snubber Assemblies ......................................................................................................................................................................................32
5.9 Current Transformers ...................................................................................................................................................................................33
5.10 Bypass Contactors .........................................................................................................................................................................................34
5.11 Plastics ..................................................................................................................................................................................................................35
5.12 Busbars ................................................................................................................................................................................................................36
5.13 Other Spare Parts ...........................................................................................................................................................................................38
6 Appendix .................................................................................................................................................. 39
6.1 Bolt Tightening Torques ...............................................................................................................................................................................39
DET-813 1
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