Parker AC690, AC890, AC30, AC10 & Fastpack Drive
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Sep 09, 2024 9:56 am
Cause : FEEDBACK MISSING comes when the drive has been configured to run in Closed Loop Vector control mode with a Pulse Encoder IO Option, but the IO Option has not been correctly configured.
FEEDBACK MISSING fault in a Parker AC30 drive indicates that the drive is not receiving feedback signals from a connected sensor, such as an encoder or resolver. This can prevent the drive from accurately controlling the motor's speed or position.
Common Causes of FEEDBACK MISSING Faults:
- Sensor Issues:
- Faulty sensor
- Damaged or loose wiring to the sensor
- Incorrect sensor configuration
- Drive Configuration Errors:
- Incorrect feedback signal type or parameters configured in the drive
- Communication problems between the drive and the sensor
- External Factors:
- Power supply issues
- Environmental factors (e.g., temperature, humidity)
Troubleshooting Steps:
- Verify Sensor Connection:
- Ensure that the sensor is properly connected to the drive and that the cables are secure.
- Check for any signs of damage or corrosion in the cables.
- Test the Sensor:
- Use a multimeter or diagnostic tool to test the sensor's output signal.
- Compare the measured values to the expected specifications.
- Review Drive Configuration:
- Verify that the feedback signal type and parameters are correctly configured in the drive.
- Check for any errors or warnings related to feedback in the drive's status messages.
- Check Power Supply:
- Ensure that the power supply is providing the correct voltage and current to the sensor.
