Rockwell Automation Publication 2198-UM001D-EN-P - May 2014 141
Troubleshooting the Kinetix 5500 Drive System Chapter 7
Table 55 - Fault Code Summary
Refer to Chapter 9 on page 157 for information on troubleshooting SAFE FLT
fault codes.
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
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.
INHIBIT Mxx Exceptions that prevent normal operation and indicate whenever the drive is active.
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.
Table 56 - 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 125% of its maximum
speed.
Check control loop tuning.
FLT S04 – MTR OVERSPEED UL
Motor Overspeed
User Limit Fault
Motor speed has exceeded motor overspeed user
limit.
• Check control loop tuning
• Increase the Motor Overspeed UL attribute value
FLT S05 – MTR OVERTEMP FL
Motor Overtemperature
Factory Limit Fault
Calculations based on the motor thermistor indicate
that the motor factory temperature limit has been
exceeded.
• Operate motor within continuous torque rating
• Reduce motor ambient temperature
• Add motor cooling
Available only on Kinetix VP motors. Not supported on induction
motors.
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
FLT S09 – MTR PHASE LOSS Motor Phase Loss The motor has failed torque proving. Check motor connections.
FLT S10 – INV OVERCURRENT Inverter Overcurrent Fault
Inverter current has exceeded the instantaneous
current limit (determined by hardware).
• Check motor power cable for shorts
• Verify motor windings are not shorted
• Verify motor power wire gauge
• Operate within the continuous power rating
• Reduce acceleration times
FLT S11 – INV OVERTEMP FL
Inverter Overtemperature
Factory Limit Fault
The measured inverter temperature has exceeded the
factory set temperature limit.
• Modify the command profile to reduce speed or increase time
• Reduce drive ambient temperature
• Verify airflow through drive is not obstructed
FLT S13 – INV OVERLOAD FL
Inverter Thermal Overload
Factory Limit Fault
The thermal model for the power transistors indicates
that the temperature has exceeded the factory set
thermal capacity rating of 110%.
Modify the command profile to reduce speed or increase time.
FLT S14 – INV OVERLOAD UL
Inverter Thermal Overload
User Limit Fault
The thermal model for the power transistors indicates
that the temperature has exceeded the limit given by
Inverter Thermal Overload User Limit.
• Modify the command profile to reduce speed or increase time
• Increase the Inverter Thermal Overload UL attribute value
FLT S15 – CONV OVERCURRENT Converter Overcurrent Fault
The measured converter current has exceeded the
factory set current limit.
• Reduce acceleration times of all drives sharing the DC bus
• Reduce number of shared DC follower drives
• Reduce number of capacitor modules
FLT S16 – GROUND CURRENT
Ground Current
Factory Limit Fault
The sensing circuitry in the power stage has detected
excessive ground current.
• Check motor power wiring; check power cable for shorts
• Replace motor if the fault persists
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