Retry count excess

What does E.RET mean?

This fault signifies that the inverter has attempted to automatically resume operation a specified number of times (configured in Pr. 67) after a previous fault, but has failed to clear the underlying problem. The inverter will now trip to prevent further damage. This code indicates a persistent issue that needs direct investigation and manual intervention.

• Persistent underlying fault condition (e.g., E.OV1, E.OC1) that the automatic retry function (Pr. 67) is unable to clear after multiple attempts.
• Excessive retry attempts configured in Pr. 67 masking a recurring problem that requires manual intervention.
• Intermittent electrical noise or brief power disturbances triggering temporary faults that immediately re-occur.
• Motor or load issues (e.g., high friction, jamming) causing the motor to repeatedly draw excessive current during restart attempts.
• Incorrect parameter settings for restart conditions (e.g., Pr. 60, Pr. 61) leading to failed restart sequences.

Click steps to track your progress.

1. 1

   Identify and resolve the primary fault code that triggered the initial trip (e.g., check previous fault history via Pr. 70, Pr. 71).

2. 2

   Review the value of Pr. 67 (Restart Attempt Count) and temporarily reduce it to zero to prevent automatic retries and isolate the initial fault.

3. 3

   Monitor the inverter's status closely after a manual reset to observe any immediate re-occurrence of a specific fault condition.

4. 4

   Inspect the motor and mechanical load for binding, excessive friction, or damage that could impede restart operations.

5. 5

   Verify input power stability using a power quality analyzer to detect voltage sags, swells, or transient disturbances.