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Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
Chapter 7
Troubleshoot the Kinetix 5700 Drive System
FLT S09 – MTR PHASE LOSS
Motor Phase Loss
Torque Prove function detected motor
current below a limit set by Torque Prove
Current Limit.
Check motor connections.
Inverters
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
• Verify iTRAK power supply cable wiring
Inverters
iTRAK PS
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
Inverters
FLT S13 – INV OVERLOAD FL
Inverter Thermal Overload
Factory Limit Fault
The thermal capacity of the inverter has
exceeded the factory set limit.
Modify the command profile to reduce speed or increase time.
Inverters
FLT S14 – INV OVERLOAD UL
Inverter Thermal Overload
User Limit Fault
The thermal capacity of the inverter has
exceeded the user set limit given by the
inverter Thermal Overload User Limit.
• Modify the command profile to reduce speed or increase time
• Increase the Inverter Thermal Overload UL attribute value
Inverters
FLT S15 – CONV OVERCURRENT
Converter Overcurrent Fault
The measured converter current has
exceeded the factory set current limit.
• Reduce the number of drives in the same bus group
• Reduce number of capacitor modules
• Verify iTRAK power supply requirements
DC-bus PS
iTRAK PS
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
• Check DC bus wiring if using a capacitor module
Single-axis
inverter
DC-bus PS
FLT S18 – CONV OVERTEMP FL
Converter OverTemp
Factory Limit Fault
The measured converter temperature has
exceeded the factory set temperature
limit.
• Reduce the number of drives in the same bus group
• Modify the command profile of inverters in the same bus group
to reduce speed or increase time
• Reduce drive ambient temperature
• Verify airflow through drive is not obstructed
• Verify iTRAK power supply requirements
DC-bus PS
iTRAK PS
FLT S20 – CONV OVERLOAD FL
(1)
Converter Thermal Overload
Factory Limit Fault
The converter thermal model indicates
that the temperature has exceeded the
factory set capacity rating of 110%.
• Reduce the number of drives in the same bus group
• Reduce duty-cycle of commanded motion
• Verify iTRAK power supply requirements
DC-bus PS
iTRAK PS
FLT S21 – CONV OVERLOAD UL
Converter Thermal Overload
User Limit Fault
The converter thermal model indicates
that the temperature has exceeded the
limit given by the Converter Thermal
Overload User Limit.
• Reduce the number of drives in the same bus group
• Reduce duty-cycle of commanded motion
• Increase the Converter Thermal Overload UL attribute value
• Verify iTRAK power supply requirements
DC-bus PS
iTRAK PS
FLT S22 – AC POWER LOSS
AC Power Loss Fault
All three AC input phases are detected as
absent when any one of the inverters
connected to a converter is in the enabled
state.
Check AC input voltage on all phases
Inverters
FLT S23 – AC PHASE LOSS
AC Single Phase Loss Fault
A single AC input phase was lost.
Check AC input voltage on all phases.
DC-bus PS
FLT S25 – CONV PRECHARGE
FAILURE
Precharge Failure Fault
The pre-charge circuit monitoring
algorithm detected that the DC bus did
not reach a factory set voltage level after
charging for a period of time.
• Check AC input voltage on all phases
• Check input power wiring
• Replace power supply or drive module if fault persists
• Verify iTRAK power supply cable wiring
DC-bus PS
iTRAK PS
FLT S27 – BUS REG OVERTEMP FL
Bus Regulator
Overtemperature
Factory Limit Fault
The digital input assigned to the shunt
thermal switch OK is asserted LOW.
• Check the digital input wiring
• Check the digital input assignments
• Check the shunt power configuration in Logix Designer
• Reduce regenerative energy dissipation of the application
• Add a larger external shunt resistor or active brake module
Inverters
DC-bus PS
FLT S29 – BUS REG OVERLOAD FL
Bus Regulator Thermal
Overload
Factory Limit Fault
The shunt thermal model has exceeded
its factory set thermal capacity limit.
• Modify the duty cycle of the application
• Add external shunt for additional capacity
• Add capacitor module
DC-bus PS
FLT S30 – BUS REG OVERLOAD UL
Bus Regulator Thermal
Overload
User Limit Fault
The shunt thermal model has exceeded
the thermal capacity limit given by Bus
Regulator Thermal Overload User Limit.
• Modify the duty cycle of the application
• Add external shunt for additional capacity
• Increase the Bus Regulator Thermal Overload UL attribute value
• Add capacitor module
DC-bus PS
FLT S31 – BUS REG FAILURE
Bus Regulator Failure
The shunt circuit has detected that the
shunt resistor is shorted.
• Check for shorts in the shunt connector
• Unplug the shunt connector and measure the resistance of the
shunt
• Replace power supply if shunt resistor is shorted
DC-bus PS
Table 95 - FLT S
xx
Fault Codes (continued)
Exception Code on Display
Exception Text
Problem
Possible Solutions
Module