3-30 Troubleshooting
7000-TD002A-EN-P – September 2007
FAULT
MESSAGE
FAULT
CODE
DESCRIPTION
RECOMMENDED ACTIONS
2U1A OfflineShrt
390
2U1B OfflineShrt
396
2U1C OfflineShrt
402
2U4A OfflineShrt
393
2U4B OfflineShrt
399
2U4C OfflineShrt
405
2V3A OfflineShrt
392
2V3B OfflineShrt
398
2V3C OfflineShrt
404
2V6A OfflineShrt
395
2V6B OfflineShrt
401
2V6C OfflineShrt
407
2W2A OfflineShrt
391
2W2B OfflineShrt
397
2W2C OfflineShrt
403
2W5A OfflineShrt
394
2W5B OfflineShrt
400
2W5C OfflineShrt
406
3U1B OfflineShrt
444
3U4B OfflineShrt
447
3V3B OfflineShrt
446
3V6B OfflineShrt
449
3W2B OfflineShrt
445
3W5B OfflineShrt
448
4U1C OfflineShrt
450
4U4C OfflineShrt
453
4V3C OfflineShrt
452
4V6C OfflineShrt
455
4W2C OfflineShrt
451
4W5C OfflineShrt
454
6P or 18P SCR RECTIFIER FAULT
(Offline Short-Circuit)
For SCR rectifiers, this fault will occur after
the initial contact closure or during the
diagnostic sequence after a start command.
This is the first test on the rectifier. When all
devices blocking, the feedback from the
devices should toggle from open to short to
open every time the line voltage sine wave
passes through zero. If this is consistently
showing short (no feedback), then the drive
assumes that the device is Short-Circuited.
–
Complete a resistance check on the
rectifier, including the gate-cathode
resistance, the snubber and sharing
resistors
–
Complete a firing check on the rectifier
–
Verify the snubber circuitry, and the
sharing resistors
–
Verify fiber optic integrity from SCRGD
board transmitter to FOI board receiver
–
Replace all faulty components
Содержание PowerFlex 7000
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