4380, Fan Speed Seems To Be Zero - Beckhoff AX8000 User Information

Diagmessages of module DeviceMain
4.2

4380, Fan speed seems to be zero.

Fan speed seems to be zero.
Diagnostic Code (Hex.)
4380
Class
Warning
Standard Reaction
No
Possible Causes
The velocity signal of the cooling fan is zero.
Internal: 0x4380, Fan speed seems to be zero.
84
Diagnostic Code (Dez.)
17280
Type
Warning
Reset
Warning: No reset required.
Solutions
Please check the cooling fan.
Version: 1.1 Multi axis servo system - AX8000