Faults At The External Fan - Siemens SIMOTICS DP Operating Instructions Manual

Low-voltage motors
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Operation
8.6 faults
8.6.5

Faults at the external fan

The following table shows the possible causes of and remedial measures for faults on forced-
ventilated machines.
Table 8-4
Cooling system faults
↓ High temperature rise with load
Possible causes of faults
X
Wrong direction of rotation of the separately
driven fan
X
Separately driven fan is not running
X
Reduced air flow
94
Remedial measures
Check the electrical connections to the separately driven fan.
Check the separately driven fan and its connections.
Check the air ducts; clean the machine.
1FZ shaft height 280
Operating Instructions, 02/2022, A5E51698698A

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