52 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015
Chapter 1 Fault Messages
X 2U1A OnlineOpen 336 6P or 18P SCR RECTIFIER FAULT
(Online Open-Circuit)
For SCR rectifiers, this fault will occur during operation. After a firing
signal is sent to a device, the drive monitors the feedback status to
ensure the voltage drops to zero across that device, indicating it has
been turned on. If the feedback does not drop to zero before
approximately 30…50 µsec, the drive will assume the device is open
and a fault will occur. There is a six cycle fixed delay, which means
that this has to occur for sex consecutive firings before the fault is
instigated.
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 cable integrity from FOI board transmitter to SCRGD board receiver.
Replace all faulty components.
X 2U1B OnlineOpen 342
X 2U1C OnlineOpen 348
X 2U4A OnlineOpen 339
X 2U4B OnlineOpen 345
X 2U4C OnlineOpen 351
X 2V3A OnlineOpen 338
X 2V3B OnlineOpen 344
X 2V3C OnlineOpen 350
X 2V6A OnlineOpen 341
X 2V6B OnlineOpen 347
X 2V6C OnlineOpen 353
X 2W2A OnlineOpen 337
X 2W2B OnlineOpen 343
X 2W2C OnlineOpen 349
X 2W5A OnlineOpen 340
X 2W5B OnlineOpen 346
X 2W5C OnlineOpen 352
X X X X 3U1B OnlineOpen 408
X X X X 3U4B OnlineOpen 411
X X X X 3V3B OnlineOpen 410
X X X X 3V6B OnlineOpen 413
X X X X 3W2B OnlineOpen 409
X X X X 3W5B OnlineOpen 412
X X X X 4U1C OnlineOpen 414
X X X X 4U4C OnlineOpen 417
X X X X 4V3C OnlineOpen 416
X X X X 4V6C OnlineOpen 419
XXXX 4W2C OnlineOpen 415
XXXX 4W5C OnlineOpen 418
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
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