User-defined fault (LECOM)

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This fault indicates that a user-defined 'Activate fault' function has been triggered specifically through the LECOM control word. The activation signal was detected on bit 10 of LECOM control word 0x400B:002 (P592.02). This fault type typically results in the motor being brought to a standstill.

• The LECOM master (e.g., PLC) has inadvertently or incorrectly set bit 10 of the LECOM control word.
• Programming error within the LECOM master device causing erroneous bit manipulation on the control word.
• Corruption of data on the LECOM communication bus due to electrical noise or poor cable integrity.
• An intermittent fault with the LECOM interface module on either the drive or the master controller, causing bit 10 to be set.
• A user-defined condition within the LECOM master intended to trigger this fault but is activating under unintended circumstances.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Utilize LECOM diagnostic software or a bus analyzer to monitor the state of bit 10 within the LECOM control word.

2. 2

   Review the PLC program or master controller logic that generates the LECOM control word to identify where bit 10 is being set.

3. 3

   Verify the physical integrity of the LECOM communication cable (e.g., shielding, termination) to prevent data corruption.

4. 4

   Cycle power to both the LECOM master and the drive to reset their communication interfaces and clear any transient errors.

5. 5

   If available, temporarily disable the 'Activate fault' linkage to LECOM control word bit 10 in the drive's parameters to isolate the issue.