Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 43
Fault Messages Chapter 1
XU1A DiagFbkLoss210INVERTER SGCT FAULT
(Feedback Fiber-Optic Loss)
This fault will only occur during the initial contactor closure
and the diagnostic sequence after a start command. The
inverter 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
• Check that the fiber-optic cables are seated properly in the optical interface board and the
SGCT firing card.
• Check that the fiber-optic cable is not pinched or damaged.
• Complete a resistance check per the instructions in the manual.
• NOTE: SGCTs may not have completely shorted, and still could read in the k range. Any
devices with low suspect readings should be changed.
• Check the LED status of the SGCT gate driver card for abnormal readings.
• Complete a Gating Test mode check on the devices.
• Verify the associated 20V power supply is powered and active.
• Verify all the power connections to the SGCT firing card are seated properly.
XU1B DiagFbkLoss216
X U1C DiagFbkLoss 222
XU4A DiagFbkLoss213
XU4B DiagFbkLoss219
X U4C DiagFbkLoss 225
X V3A DiagFbkLoss 212
X V3B DiagFbkLoss 218
X V3C DiagFbkLoss 224
X V6A DiagFbkLoss 215
X V6B DiagFbkLoss 221
X V6C DiagFbkLoss 227
X W2A DiagFbkLoss 211
X W2B DiagFbkLoss 217
XW2C DiagFbkLoss223
X W5A DiagFbkLoss 214
X W5B DiagFbkLoss 220
XW5C DiagFbkLoss226
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
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