Switching-Off Force-Ventilated Motors; Switching On Again After An Emergency Switching-Off; Stoppages - Siemens SIMOTICS M-1PH8 Operating Instructions & Installation Instructions

Operation

8.6 Stoppages

8.4

Switching-off force-ventilated motors

● When switching-off, also observe the converter operating instructions.
● Switch off the external fan during longer standstill periods. Leave the fan on for
● If a standstill heating unit is available, switch it on.
8.5

Switching on again after an emergency switching-off

● Check the motor before restarting the driven machine after an emergency off.
● Eliminate all the causes that have led to the emergency off
8.6 Stoppages
The stoppage is a shutdown for a period of time, during which the machine is stopped but
remains at the location of use.
Under normal ambient conditions, e. g. the stopped machine is not exposed to any vibration,
no increased level of corrosion, etc. in general, the following measures are necessary during
stoppages.
Measures when motors are at standstill and ready for operation
● For longer periods when the motor is not being used, either energize the motor at regular
● Please refer to the section"Switching on" (Page 75) before switching on to recommission
80
approximately 30 minutes after switching off the motor to avoid overheating of the motor.
intervals (roughly once a month), or at least spin the rotor.
the motor.
CAUTION
Damage due to improper storage
The motor can be damaged if it is not stored properly. If the motor is out of service for
extended periods of time, implement suitable anti-corrosion, preservation, and drying
measures.
When recommissioning the motor after a long period out of service, carry out the measures
recommended in the chapter entitled "Commissioning (Page 73)".
Operating Instructions 05/2012 A5E03986435A AA
SIMOTICS M-1PH8