36

Control unit

Vacon · NX Liquid-Cooled Drive

What does 36 mean?

The VACON NXS Control Unit is unable to control the VACON NXP Power Unit, or vice versa. This indicates an incompatibility or mismatch between the control and power units.

Common Causes

  • Internal control unit hardware failure.
  • Memory corruption within the control unit.
  • Watchdog timer reset due to control unit freeze.
  • Power supply issue to the control unit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the installed control unit with a compatible VACON NXS or NXP control unit that matches the power unit.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Vacon NX Liquid-Cooled Drive