Danfoss VLT Alarm 166: ATEX ETR frequency limit alarm

Danfoss Electrical Alarm Drive

Model: VLT 2800 / FC Series | Code: 166

Applicable Systems
FC-302 FC-301

Symptoms

ATEX motor frequency limit exceeded (alarm).

Possible Causes

  • ATEX ETR frequency limit alarm

Troubleshooting Steps

  1. Step 1: Reduce frequency reference; verify ATEX frequency parameters.
    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 FC Series Alarm Codes (agilectrl.com)

Category: Electrical