Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 47
Fault Messages Chapter 1
X 2U1A DiagFbkLoss 282 PWM RECTIFIER SGCT FAULT
(Feedback Fiber-Optic Loss)
This fault will occur during the initial contactor closure, the
diagnostic sequence after a start command, or the diagnostic
sequence after a stop command. The rectifier monitors the
state of the feedback before a gate pulse is given, and
monitors the feedback after a gate pulse has been sent.
This fault occurs when the feedback was low from the device
before gating, and is still low from the device after gating.
The drive then assumes the feedback must be the problem.
The firmware now completes a diagnostics sequence
immediately after any drive reset, with the goal of detecting
faults before any destructive action is taken from the next
action
• Verify that the feedback fiber-optic cable from the SGCT to the FOI board is not damaged
or disconnected.
• Verify that the gate pulse has been received by the SGCT board using Gating test mode.
• Complete a resistance check described in Chapter 4, checking the devices, sharing
resistors, and snubber circuitry.
• Replace all faulty components.
• It is likely that the feedback fiber-optic cable is not plugged in or has been damaged.
X 2U1B DiagFbkLoss 288
X2U1C DiagFbkLoss294
X 2U4A DiagFbkLoss 285
X 2U4B DiagFbkLoss 291
X2U4C DiagFbkLoss297
X2V3A DiagFbkLoss284
X2V3B DiagFbkLoss290
X2V3C DiagFbkLoss296
X2V6A DiagFbkLoss287
X2V6B DiagFbkLoss293
X2V6C DiagFbkLoss299
X 2W2A DiagFbkLoss 283
X 2W2B DiagFbkLoss 289
X 2W2C DiagFbkLoss 295
X 2W5A DiagFbkLoss 286
X 2W5B DiagFbkLoss 292
X 2W5C DiagFbkLoss 298
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
To Next Page
Loading...
