Allen-Bradley PowerFlex 527, User Manual

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122 Rockwell Automation Publication 520-UM002B-EN-E - December 2017
Chapter 7 Troubleshooting
When the drive enters a fault or
inhibit scenario, the fault
information will be shown and
scrolled across the LCD display.
Fault Codes
The fault code tables are designed to help you determine the source of the fault or
exception. When a fault condition is detected, the drive performs the appropriate
fault action, the fault is displayed, and the fault is added to a persistent fault log
(along with diagnostics data). The earlier faults have priority to be displayed.
The drive removes the fault text from the display when a Fault Reset service is
sent from the controller and the fault is no longer active. If a fault is still active
following a Fault Reset service, the fault is again posted to the display and written
to the fault log.
See Troubleshoot the Safe Torque-Off Function on page 98 for information on
troubleshooting SAFE FLT fault codes.
Fault Code Summary
Fault Code Type Description
FLT Sxx Standard runtime axis exceptions.
FLT Mxx
INIT FLT Sxx Exceptions that prevent normal operation and occur during the initialization process.
INIT FLT Mxx
INHIBIT Sxx Exceptions that prevent normal operation and indicate whenever the drive is active.
INHIBIT Mxx
NODE FLTxx Exceptions that prevent normal operation of the drive.
NODE ALARM xx Exceptions that prevent normal operation of the drive, but do not result in any action other
than reporting the alarm to the controller.
TIP
Fault codes triggered by conditions that fall outside factory set limits are
identified by FL at the end of the display message. For example, FLT S07 – MTR
OVERLOAD FL.
Fault codes triggered by conditions that fall outside user set limits are
identified by UL at the end of the display message. For example, FLT S08 – MTR
OVERLOAD UL.
INIT FLT M12 INVALID FPGA REV
Fault type
Fault code
Fault description
FLT Sxx Fault Codes
Exception Code on Display Exception Text Problem Possible Solutions
FLT S03 – MTR OVERSPEED FL Motor Overspeed Factory Limit Fault Motor speed has exceeded 590 Hz. Check control loop tuning.
FLT S04 – MTR OVERSPEED UL Motor Overspeed User Limit Fault Motor speed has exceeded the user defined
speed limit given by Motor Overspeed User
Limit. Check control loop tuning.
FLT S07 – MTR OVERLOAD FL Motor Thermal Overload Factory Limit Fault The motor thermal model has exceeded its
factory set thermal capacity limit of 110%.
Modify the command profile to reduce speed
or increase time.
FLT S08 – MTR OVERLOAD UL Motor Thermal Overload User Limit Fault The motor thermal model has exceeded the
thermal capacity limit given by Motor
Thermal Overload User Limit. • Modify the command profile.
• Increase the Motor Thermal Overload UL
attribute value.