21
Low Temperature (Adv. Code 0)
Vacon · X4 AC Drive
What does 21 mean?
This fault is triggered when the heatsink temperature drops below -10.0 degrees Celsius. Operating the drive outside its specified low-temperature limits can affect the performance and reliability of internal components, particularly electrolytic capacitors and LCD displays. This prevents safe operation and could cause damage.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Ensure that the drive is not exposed to drafts or unusually cold air currents.
- 4
Allow the drive to warm up to an acceptable operating temperature before attempting to restart.
Source: Vacon X4 AC Drive
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