Danfoss VLT Alarm 48: 1.8V supply low

Danfoss Electrical Alarm Drive

Model: VLT 2800 / FC Series | Code: 48

Applicable Systems
FC-302 FC-301

Symptoms

Internal 1.8V supply below threshold.

Possible Causes

  • 1.8V supply low

Troubleshooting Steps

  1. Step 1: Restart drive; if persistent, replace control card.
    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

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Source: Danfoss FC Series Alarm Codes (agilectrl.com)

Category: Electrical