Danfoss VLT Alarm 34: HPFB communication fault

Danfoss Electrical Alarm Drive

Model: VLT 2800 / FC Series | Code: 34

Applicable Systems
FC-302 FC-301

Symptoms

Communication fault occurs only in Profibus type.

Possible Causes

  • HPFB communication fault

Troubleshooting Steps

  1. Step 1: Check Profibus cable, connector, and termination; verify bus configuration.
    Fault resolved after action

How to Reset

Reset by: 1) Correct the fault condition. 2) Press RESET button or cycle power. 3) Verify fault does not recur.

Related Danfoss Fault Codes

Source: Danfoss VLT 2800 Manual (sinodrive.com)

Category: Electrical