Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 336)

336 Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Chapter 6 Troubleshooting
11142
11242
11342 C1 Comm Loss
C2 Comm Loss
C3 Comm Loss Resettable
Fault Coast The converter gate firing board lost communications (through the
power layer interface board) to the main control board. Once the root
cause of the communication fault has been resolved, power must be
cycled or a drive reset must be initiated to clear this fault.
• Verify that the fiber optic cables are properly connected to the
transceivers.
• Verify that the transceivers are properly seated in the ports.
• Verify that the fiber optic cable is not cracked or broken.
• Verify that power is applied to the fiber optic interface board, gate
firing board, and power layer interface board. If necessary, replace
the fiber optic interface, gate firing board, and/or power layer
interface board.
11143
11243
11343 C1 Firmware Flt
C2 Firmware Flt
C3 Firmware Flt Non-Reset
Fault Coast A firmware fault has occurred.
• Reset the drive. If this fault persists, replace the converter gate firing
board.
11144
11244
11344 C1 DC Bus Open
C2 DC Bus Open
C3 DC Bus Open Non-Reset
Fault Coast The DC bus voltage did not rise above 12V (for 400V class drives) or 20V
(for 600V class drives) as the SCRs began to ramp on. In this case, the
converter will try to turn on the SCRs for approximately 10 seconds
before issuing this fault. Event 101/201 “Cn Precharge” is issued
following the first retry.
• Verify that the current transducers have not all failed. If necessary,
replace all three current transducers.
• Verify that the DC link inductor has not failed. If necessary, replace
the DC link choke.
• Verify that the converter line and DC bus wiring is connected.
• Verify that the capacitor bank is properly installed and connected.
11145
11245
11345 C1 DC Bus Short
C2 DC Bus Short
C3 DC Bus Short Non-Reset
Fault Coast The peak current has exceeded 150% of the converter rating during the
precharge sequence. Peak charging current is normally limited to 50%
of the converter rating.
• Check for a DC bus short, internally and externally.
• Verify that the wiring harness to P10 on the converter gate firing
board is connected and not damaged. Replace the harness as
necessary.
• Verify that the capacitor bank is properly installed and connected.
• Check for an IGBT short and replace as necessary.
11146
11246
11346 C1 CT Harness
C2 CT Harness
C3 CT Harness Non-Reset
Fault Coast A current transducer (CT) wiring harness connection loss has been
detected.
• Verify that the CT wiring harness is not damaged and is connected to
P6 on the converter gate firing board. Replace the wiring harness if
necessary.
• If this problem persists, replace the converter gate firing board.
11147
11247
11347 C1 LFuse Harness
C2 LFuse Harness
C3 LFuse Harness Non-Reset
Fault Coast A line fuse wiring harness connection loss has been detected.
• Verify that the line fuse wiring harness is not damaged and is
connected to P7 on the converter gate firing board. Replace the
wiring harness if necessary.
• If this problem persists, replace the converter gate firing board.
Event
No. Fault/Alarm Text Type Fault
Action Configuration
Parameter Auto
Reset Description/Action(s)
ATTENTION: Hazard of permanent eye damage
exists when using optical transmission
equipment. This product emits intense light and
invisible radiation. Do not look into fiber-optic
ports or fiber-optic cable connectors. Remove
power from the drive before disconnecting fiber
optic cables.