Parker AC690, AC890, AC30, AC10 & Fastpack Drive
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Sep 10, 2024 5:10 am
Cause : UNDER VOLTAGE comes when the input voltage to the drive is below its rated operating voltage. This can cause the drive to operate at reduced power or even shut down altogether.
Undervoltage fault in Parker AC690 drive indicates that the voltage level on the DC bus has dropped below the drive's lower threshold. This can occur due to issues with the incoming power supply, load conditions, or internal drive components.
Common Causes of UNDER VOLTAGE Faults:
- Incorrect Input Voltage: The most common cause is simply providing the drive with an input voltage that is lower than its specified rating.
- Power Supply Fluctuations: Power supply instability or sags can cause temporary voltage drops that trigger the fault.
- Internal Drive Issues: In rare cases, a faulty component within the drive itself can lead to an undervoltage condition.
Troubleshooting Steps:
- Verify Input Voltage:
- Use a voltmeter to measure the actual input voltage to the drive.
- Ensure that it matches the rated input voltage specified in the drive's manual.
- If the voltage is too low, correct the power supply or adjust the input voltage settings.
- Check for Power Supply Issues:
- Inspect the power supply for any signs of damage or malfunction.
- If necessary, replace the power supply with a new one that meets the drive's requirements.
- Inspect the Drive:
- Look for any visible damage or signs of overheating on the drive's exterior.
- Check for loose connections or faulty components.
- Reset the Drive:
- If the fault persists, try resetting the drive to its default settings. This may resolve temporary issues caused by software glitches.
