Parker AC690 Drive Fault Codes:
| Fault Code | Cause & Solution |
|---|---|
| OVERVOLTAGE | Cause: The drive internal dc link voltage is too high. Solution: – The supply voltage is too high – Trying to decelerate a large inertia load too quickly – The brake resistor is open circuit |
| UNDERVOLTAGE | Cause: The drive internal dc link voltage is too low Solution: – The supply voltage is too low – The supply has been lost – A supply phase is missing |
| OVERCURRENT | Cause: The motor current being drawn from the drive is too high Solution: – Trying to accelerate a large inertia load too quickly – Trying to decelerate a large inertia load too quickly – Application of shock load to motor – Short circuit between motor phases – Short circuit between motor phase and earth – Motor output cables too long or too many parallel – motors connected to the drive – Fixed or auto boost levels are set too high |
| HEATSINK | Cause: The drive heatsink temperature is too high Solution: – The ambient air temperature is too high – Poor ventilation or spacing between drives |
| EXTERNAL TRIP | Cause: User trip caused via control terminals Solution: +24V not present on external trip (e.g. terminal 19, Macro 1). |
| INPUT 1 BREAK | Cause: A signal break has been detected on analog input 1 (terminal 1) Solution: – Analog input is incorrectly configured for 4-20mA operation – Break in external control wiring |
| INPUT 2 BREAK | Cause: A signal break has been detected on analog input 2 (terminal 2) Solution: – Analog input is incorrectly configured for 4-20mA operation – Break in external control wiring |
| MOTOR STALLED | Cause: The motor has stalled (not rotating) Motor loading too great Solution: – Current limit level is set too low – Stall trip duration is set too low – Fixed or auto boost levels are set too high |
| INVERSE TIME | The inverse time current limit is active: • motor loading is too great: motor current >150% for 60s in Constant duty motor current >110% for 60s in Quadratic duty • fixed or autoboost levels are too high |
| BRAKE RESISTOR | Cause: External dynamic braking resistor has been overloaded Solution: Trying to decelerate a large inertia load too quickly or too often |
| BRAKE SWITCH | Cause: Internal dynamic braking switch has been overloaded Solution: Trying to decelerate a large inertia load too quickly or too often |
| OP STATION | Cause: Keypad has been disconnected from drive whilst drive is running in local control Solution: Keypad accidentally disconnected from drive |
| LOST COMMS | COMMS TIMEOUT parameter set too short (refer to COMMS CONTROL menu at level 3). |
| CONTACTOR FBK | The CONTACTOR CLOSED input in the SEQUENCING LOGIC function block remained FALSE after a run command was issued. |
| SPEED FEEDBACK | SPEED ERROR > 50.00% for 10 seconds. |
| AMBIENT TEMP | The ambient temperature in the drive is too high. |
| MOTOR OVERTEMP | Cause: The motor temperature is too high Solution: – Excessive load – Motor voltage rating incorrect – FIXED BOOST and/or AUTO BOOST set too high – Prolonged operation of the motor at low speed without forced cooling – Check setting of INVERT THERMIST parameter in I/O TRIPS menu at level 3. – Break in motor thermistor connection |
| CURRENT LIMIT | Cause: If the current exceeds 180% of stack rated current for a period of 1 second, the drive will trip. This is caused by shock loads. Solution: Remove the cause of the shock load. |
| 24V FAILURE | Cause: The 24V customer output has fallen below 17V. Solution: – 24V customer output is short circuited. – Excessive loading. |
| LOW SPEED OVER I | Cause: The motor is drawing too much current (>100%) at zero output frequency. Solution: FIXED BOOST and/or AUTO BOOST set too high (refer to FLUXING menu at level 4). |
| PHASE FAIL | Cause: One or more phases of the 3-phase supply is missing. Solution: – Check supply connections. – Check fuses. |
| ENCODER 1 FAULT | The Error input on the Encoder TB is in the Error state. |
| DESAT (OVER I) | Instantaneous overcurrent. Refer to OVERCURRENT in this table. |
| VDC RIPPLE | Cause: The dc link ripple voltage is too high. Solution: Check for a missing input phase. |
| BRAKE SHORT CCT | Cause: Brake resistor overcurrent. Solution: Check resistance brake resistor value is greater than minimum allowed. |
| OVERSPEED | Cause: Speed feedback has exceeded the THRESHOLD for a period greater than DELAY. |
| ANALOG INPUT ERR | Cause: Analog input is incorrectly configured for 4-20mA operation. Solution: – Short circuit in external control wiring. – Extreme over-range of remote sensor. |
| UNKNOWN | An unknown trip – refer to Parker SSD Drives. |
| OTHER | One or more of the trips listed below have tripped. |
| MAX SPEED LOW | Cause & Solution: During Autotune the motor is required to run at the nameplate speed of the motor. If MAX SPEED RPM limits the speed to less than this value, an error will be reported. – Increase the value of MAX SPEED RPM up to the nameplate rpm of the motor (as a minimum). – It may be reduced, if required, after the Autotune is complete. |
| MAINS VOLTS LOW | Cause: The mains input voltage is not sufficient to carry out the Autotune. Solution: Re-try when the mains has recovered. |
| NOT AT SPEED | Cause: The motor was unable to reach the required speed to carry out the Autotune. Solution: 1. Possible reasons include: – motor shaft not free to turn – the motor data is incorrect |
| MAG CURRENT FAIL | Cause: It was not possible to find a suitable value of magnetising current to achieve the required operating condition for the motor. Solution: – Check the motor data is correct, especially nameplate rpm and motor volts. – Also check that the motor is correctly rated for the drive. |
| NEGATIVE SLIP F | Cause: Autotune has calculated a negative slip frequency, which is not valid. Solution: – Nameplate rpm may have been set to a value higher than the base speed of the motor. – Check nameplate rpm, base frequency, and pole pairs are correct. |
| TR TOO LARGE | Cause: The calculated value of rotor time constant is too large. Solution: Check the value of nameplate rpm. |
| TR TOO SMALL | Cause: The calculated value of rotor time constant is too small. Solution: Check the value of nameplate rpm. |
| MAX RPM DATA ERR | Cause: This error is reported when the MAX SPEED RPM is set to a value outside the range for which Autotune has gathered data. Autotune gathers data on the motor characteristics up to 30% beyond “max speed rpm”. Solution: – If MAX SPEED RPM is later increased beyond this range, the drive had no data for this new operating area, and so will report an error. – To run the motor beyond this point it is necessary to re- autotune with MAX SPEED RPM set to a higher value. |
| STACK TRIP | Cause: The drive was unable to distinguish between an overcurrent/Dsat or overvoltage trip. |
| LEAKGE L TIMEOUT | Cause: The leakage inductance measurement requires a test current to be inserted into the motor. Solution: – It has not been possible to achieve the required level of current. – Check that the motor is wired correctly. |
| POWER LOSS STOP | Cause: Power Loss Stop sequence has ramped Speed Setpoint to zero or timed out. |
| MOTR TURNING ERR | Cause: The motor must be stationary when starting the Autotune. |
| MOTR STALLED ERR | Cause: The motor must be able to rotate during Autotune. |