WARNING 200

Fire Mode

Danfoss · VLT HVAC Basic FC 101

What does WARNING 200 mean?

The frequency converter has been activated into 'Fire Mode'. This mode forces the drive to continue operation even under fault conditions to maintain critical systems (e.g., smoke extraction fans) during an emergency. Be aware that this overrides normal safety shutdowns.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Address the underlying reason for entering Fire Mode once the emergency has passed, and prepare for potential component inspection.

Source: Danfoss VLT HVAC Basic FC 101
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