| Fault Codes | Cause & Solutions |
|---|---|
| F2 Auxiliary Input | Cause : Auxiliary input interlock is open. Solution: – Check remote wiring. – Verify communications programming for intentional fault. |
| F3 Power Loss | Cause: Excessive DC Bus voltage ripple. Solution: – Monitor the incoming AC line for low voltage or line power interruption. – Check input fuses. – Reduce load. |
| F4 UnderVoltage | Cause: DC bus voltage fell below the min value. Solution: Monitor the incoming AC line for low voltage or line power interruption. |
| F5 OverVoltage | Cause: DC bus voltage exceeded max value. Solution: – Monitor the AC line for high line voltage or transient conditions. – Bus overvoltage can also be caused by motor regeneration. – Extend the decel time or install dynamic brake option. |
| F6 Motor Stalled | Cause: Drive is unable to accelerate or decelerate motor. Solution: – Increase P039…A147 [Accel Time x] or reduce load so drive output current does not exceed the current set by parameter A179 [Current Limit 1]. – Check for overhauling load. |
| F7 Motor Overload | Cause: Internal electronic overload trip. Solution: – An excessive motor load exists. Reduce load so drive output current does not exceed the current set by parameter P033 [Motor OL Current]. – Verify A170 [Boost Select] setting. |
| F8 Heatsink OvrTmp | Cause: Heatsink/Power Module temperature exceeds a predefined value. Solution: – Check for blocked or dirty heatsink fins. Verify that ambient temperature has not exceeded the rated ambient temperature. – Check fan. |
| F12 HW OverCurrent | Cause: The drive output current has exceeded the hardware current limit. Solution: – Check programming. – Check for excess load, improper A170 [Boost Select] setting, DC brake volts set too high or other causes of excess current. |
| F13 Ground Fault | Cause: A current path to earth ground has been detected at one or more of the drive output terminals. Solution: – Check the motor and external wiring to the drive output terminals for a grounded condition. |
| F15 Load Loss | Cause: Output current has dropped below the level set in A184 [Load Loss Level]. Solution: – Check for load loss (i.e., a broken belt). |
| F17 Input Phase Loss | Cause: Excessive DC bus ripple voltage detected. See d329 [DC Bus Ripple V]. Solution: – Check incoming power for a missing phase or blown fuse. If drive is used intentionally with single phase input, apply output derating to 35% actual drive rating. |
| F29 Analog Input Loss | Cause: An analog input is configured to fault on signal loss. A signal loss has occurred. – Configure with T072 [Anlalog In Loss]. Solution: – Check parameters. – Check for broken/loose connections at inputs. |
| F32 Fan Fdbck Loss | Cause: A loss of cooling fan feedback has been detected. (Frames E and F only) Solution: – Make sure cooling fans are clear of debris and spinning freely. Replace fan if necessary. |
| F33 Auto Rstrt Tries | Cause: Drive unsuccessfully attempted to reset a fault and resume running for the programmed number of A163 [Auto Rstrt Tries]. Solution: – Correct the cause of the fault and manually clear. |
| F38 Phase U to Gnd | Cause: A phase to ground fault has been detected between the drive and motor in this phase. Solution: – Check the wiring between the drive and motor. – Check motor for grounded phase. – Replace drive if fault cannot be cleared. |
| F39 Phase V to Gnd | Cause: A phase to ground fault has been detected between the drive and motor in this phase. Solution: – Check the wiring between the drive and motor. – Check motor for grounded phase. – Replace drive if fault cannot be cleared. |
| F40 Phase W to Gnd | Cause: A phase to ground fault has been detected between the drive and motor in this phase. Solution: – Check the wiring between the drive and motor. – Check motor for grounded phase. – Replace drive if fault cannot be cleared. |
| F41 Phase UV Short | Cause: Excessive current has been detected between these two output terminals. Solution: – Check the motor and drive output terminal wiring for a shorted condition. – Replace drive if fault cannot be cleared. |
| F42 Phase UW Short | Cause: Excessive current has been detected between these two output terminals. Solution: – Check the motor and drive output terminal wiring for a shorted condition. – Replace drive if fault cannot be cleared. |
| F43 Phase VW Short | Cause: Excessive current has been detected between these two output terminals. Solution: – Check the motor and drive output terminal wiring for a shorted condition. – Replace drive if fault cannot be cleared. |
| F48 Params Defaulted | Cause: The drive was commanded to write default values to EEPROM. Solution: – Clear the fault or cycle power to the drive. – Program the drive parameters as needed. |
| F63 SW OverCurrent | Cause: Programmed A183 [SW Current Trip] has been exceeded. Solution: – Check load requirements and A183 [SW Current Trip] setting. |
| F64 Drive Overload | Cause: Drive rating of 110% for 1 minute or 150% for 3 seconds has been exceeded. Solution: Reduce load or extend Accel Time. |
| F70 Power Unit | Cause: Failure has been detected in the drive power section. Solution: – Check that max ambient temperature has not been exceeded. – Cycle power. – Replace drive if fault cannot be cleared. |
| F71 Net Loss | Cause: The communication network has faulted. Solution: – Cycle power. – Check communications cabling. – Check network adapter setting. – Check external network status. |
| F81 Comm Loss | Cause: RS485 (DSI) port stopped communicating. Solution: – Check RS485 wiring connection. – Check if a communications adapter or HIM was disconnected. – Increase C106 [Comm Loss Time] to an appropriate time for application. – Change C105 [Comm Loss Action] to a value other than “0” (fault), if appropriate for the application. |
| F94 Function Loss | Cause: P036 [Start Source] is set to setting 6. – The input to terminal 01 has been opened. Solution: – Close input to terminal 01 and re- start the drive. |
| F100 Parameter Chksum | Cause: The checksum read from the board does not match the checksum calculated. Solution: Set P041 [Reset To Defalts] to option 1 “Reset Defaults”. |
| F122 I/O Board Fail | Cause: Failure has been detected in the drive control and I/O section. Solution: – Cycle power. – Replace drive if fault cannot be cleared. |