Vacon NXP Error Code 51

Vacon PLC & VFD Major Parameter

Model: NXP | Code: 51

Applicable Systems
Vacon 100

Symptoms

Parameter checksum fault: parameter verification error.

Possible Causes

  • EEPROM checksum mismatch
  • Parameter corruption
  • EEPROM component aging

Troubleshooting Steps

  1. Step 1: Reload default parameters
    Parameters load without error
  2. Step 2: Verify checksum
    Checksum valid
  3. Step 3: Replace control board if faulty
    New board stores parameters

How to Reset

Reset via control panel after parameter reload.

Related Vacon Fault Codes

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Source: Vacon NXP Quick Guide, Danfoss/Vacon

Category: PLC & VFD