INVT GD18 Series 2in1, GD10 Series Mini & GD800 Pro Series Drive
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Nov 18, 2024 5:34 am
An LL fault in INVT GD10 drive indicates an Electronic Underload Fault. This means that the inverter's output current has fallen below a pre-set underload threshold.
Common Causes of LL Faults:
-
Reduced Load:
- The load connected to the motor may have decreased significantly or been removed entirely.
- This can occur due to mechanical failures, process changes, or other factors.
-
Incorrect Underload Threshold Setting:
- The underload threshold may be set too low, causing frequent false alarms.
- Check the drive's parameter settings and adjust the underload threshold as needed.
-
Inverter Malfunction:
- A fault in the inverter's internal circuitry can trigger an LL fault, even if the load is sufficient.
Troubleshooting Steps:
-
Check the Load:
- Verify that the load connected to the motor is appropriate and functioning correctly.
- Ensure that the load is not significantly reduced or removed.
-
Adjust Underload Threshold:
- Consult the drive's manual to determine the correct underload threshold setting.
- Adjust the setting to avoid false alarms.
-
Inspect the Inverter:
- Visually inspect the inverter for any signs of damage or overheating.
- Check the connections and wiring for any loose or damaged components.