8.2 Switching on the machine
1. Operate the machine without a load and check that it is running smoothly.
2. If it runs perfectly, connect a load.
NOTICE
Thermal overload of motors connected directly to the line supply
In addition to the load torque, the ramp-up (accelerating) time is essentially inuenced by
the moment of inertia to be accelerated. While ramping up when connected to the line
supply, the inrush (starting) current is a multiple of the rated current. This can result in
thermal overload. This can damage the motor.
As a consequence, when ramping up, observe the following:
• Monitor the ramp-up time and number of consecutive starts.
• Comply with the limit values and/or ramp-up conditions specied in the catalog or the
order documentation.
3. Check the bearing temperature and the stator winding temperature if this is possible using
the available measuring equipment.
8.3 Deactivating
Commission any devices provided for protection against condensation after switching o the
machine.
Do not immediately switch o the separately-driven fan after switching o the machine. First
wait for the machine to cool down. This will prevent the accumulation of residual heat.
8.4 Switching on again after an EMERGENCY OFF
• After an EMERGENCY OFF, check the machine before recommissioning the driven machine.
• Eliminate all the causes that led to the EMERGENCY OFF
8.5 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 stationary machine is not exposed to any external
vibration, no increased level of corrosion, ... then the following measures are required.
Operation
8.5Stoppages
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
Operating Instructions, 11/2023, A5E38483075A 89
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