PowerFlex 4 fault codes
Hi everyone,
This information refers to a drive system that has a fault indication feature and provides steps to clear the faults either manually or automatically. If a fault occurs, the user can acknowledge it by pressing the Escape key and view the most recent fault information using d007. The cause of the fault must be corrected before it can be cleared. There are several methods to clear a Type 1 fault and restart the drive including setting A092 and A093 to non-zero values. To clear an OverVoltage, UnderVoltage or Heatsink OvrTmp fault without restarting the drive, set A092 to a non-zero value and A093 to zero.
F2 Auxiliary Input ➀ Auxiliary input interlock is open.
Check the wiring of the auxiliary input to ensure it is properly connected to the control system.
Check the programming of the control system to verify that it is set up correctly to receive signals from the auxiliary input and to determine if there is an intentional fault set up in the system.
F3 Power Loss ➁ DC bus voltage remained below 85% of nominal.
Monitor the incoming AC power line for issues such as low voltage or power interruptions.
Check the input fuses for any signs of damage or burn out, which could cause the DC bus voltage to drop below 85% of nominal.
F4 UnderVoltage ➀ DC bus voltage fell below the minimum value.
Monitor the incoming AC power line for issues such as low voltage or power interruptions, which could cause the DC bus voltage to fall below the minimum value.
F5 OverVoltage ➀ DC bus voltage exceeded maximum value.
Monitor the incoming AC power line for issues such as high line voltage or transient conditions, which could cause the DC bus voltage to exceed the maximum value. The overvoltage could also be caused by motor regeneration, so consider extending the deceleration time or installing a dynamic brake option.
F6 Motor Stalled ➀ Drive is unable to accelerate motor.
To resolve the issue of a stalled motor, try the following steps:
Increase the acceleration time (P039 - A067) to give the motor more time to ramp up to speed.
Reduce the load on the motor so that the drive output current does not exceed the current limit set by parameter A089 [Current Limit].
F7 Motor Overload ➀ Internal electronic overload trip.
To resolve the issue of a motor overload, try the following steps:
Reduce the load on the motor so that the drive output current does not exceed the current limit set by parameter P033 [Motor OL Current].
Verify the setting of A084 [Boost Select] to ensure it is set correctly for the motor and load being used.
F8 Heatsink Over Tmperature
To resolve the issue of an overheated heatsink, try the following steps:
Check for blocked or dirty heatsink fins and ensure that the ambient temperature has not exceeded the specified limit (40°C (104°F) for IP 30/NEMA 1/UL Type 1 installations or 50°C (122°F) for IP20/Open type installations).
Check the fan to ensure it is functioning properly and providing adequate cooling for the heatsink.
F12 HardWare OverCurrent ➁ The drive output current has exceeded the hardware current limit.
To resolve the issue of a hardware overcurrent, try the following steps:
Check the programming of the control system to ensure it is set up correctly.
Check for excess load or other factors that could be causing an increase in current, such as an improper setting for A084 [Boost Select], DC brake volts set too high, or other causes.
F13 Ground Fault ➁ A current path to earth ground
To resolve the issue of a ground fault, try the following steps:
Check the motor and external wiring to the drive output terminals for any signs of a grounded condition, which could cause a current path to earth ground.
F33 Auto Restart Tries Drive unsuccessfully attempted to reset a fault and resume running for the programmed number of A092 [Auto Rstrt Tries].
To resolve the issue of a failed automatic reset attempt, try the following steps:
Correct the cause of the underlying fault that prevented the drive from automatically resetting.
Manually clear the fault to allow the drive to restart and resume normal operation.
F38 Phase U to Gnd ➁ A phase to ground fault has been
detected between the drive and motor in this phase.
F39 Phase V to Gnd
F40 Phase W to Gnd
To resolve the issues of phase to ground faults (F38, F39, and F40), try the following steps:
Check the wiring between the drive and motor for any signs of damage or loose connections that could cause a fault.
Check the motor for any signs of a grounded phase, which could cause a fault.
If the cause of the fault cannot be cleared, consider replacing the drive to resolve the issue.
F41 Phase UV Short ➁ Excessive current has been detected between these two output terminals.
F42 Phase UW Short
F43 Phase VW Short
To resolve the issues of phase short faults (F41, F42, and F43), try the following steps:
Check the motor and drive output terminal wiring for any signs of a shorted condition, which could cause excessive current to flow between the terminals.
If the cause of the fault cannot be cleared, consider replacing the drive to resolve the issue.
F48 Params Defaulted The drive was commanded to write default values to EEPROM.
To resolve the issue of defaulted drive parameters, try the following steps:
Clear the fault by cycling the power to the drive or manually clearing the fault.
Program the drive parameters as needed to match your specific application requirements. This may include setting parameters related to the motor, control loop, protection, and communication settings, among others.
F63 SW OverCurrent ➀ Programmed A098 [SW Current Trip] has been exceeded.
To resolve the issue of software overcurrent (F63), try the following steps:
Check the load requirements of your application and verify that the current drawn by the motor does not exceed the programmed software current trip setting, A098 [SW Current Trip].
Adjust the value of A098 [SW Current Trip] as needed to match your specific application requirements. This may include setting a lower value to provide a greater level of protection for the drive and motor, or a higher value to allow for greater current flow.
F64 Drive Overload ➁ Drive rating of 150% for 1 minute or 200% for 3 seconds has been exceeded.
To resolve the issue of drive overload (F64), try the following steps:
Reduce the load on the motor, as the drive has exceeded its rated current capacity of 150% for 1 minute or 200% for 3 seconds.
If reducing the load is not possible, you can also try to extend the Accel Time. This will increase the time the drive takes to reach full speed, and may help prevent the drive from tripping due to overcurrent.
F70 Power Unit ➁ Failure has been detected in the drive power section.
The error message you provided seems to be indicating a failure in the drive power section of a device. To troubleshoot the issue, the recommended steps are:
Cycle the power (turn off and then turn on the device)
If the error cannot be cleared, replace the drive.
These steps should help resolve the issue with the drive power section. If the problem persists, consider seeking further technical assistance.
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