Vacon NXP Error Code 74

Vacon PLC & VFD Major System

Model: NXP | Code: 74

Applicable Systems
Vacon 100

Symptoms

Slave drive fault: slave inverter fault detected.

Possible Causes

  • Slave drive hardware fault
  • Slave drive communication error
  • Slave drive overload

Troubleshooting Steps

  1. Step 1: Check slave drive status
    Slave operational
  2. Step 2: Verify slave communication
    Communication intact
  3. Step 3: Check slave drive for faults
    No faults on slave

How to Reset

Reset via control panel after slave drive repair.

Related Vacon Fault Codes

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Source: Vacon NXP Quick Guide, Danfoss/Vacon

Category: PLC & VFD

Published: 2026-10-04