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Operation
9.6 Stoppages
9.3
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.
3. Check the bearing temperature and the stator winding temperature if this is possible with the
available measuring equipment.
9.4
Switch off the separately driven fan
Do not immediately switch off the separately-driven fan after switching off the machine. First
wait for the machine to cool down. This will prevent the accumulation of residual heat.
9.5
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
9.6
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 stationary machine is not exposed to any external
vibration, no increased level of corrosion, ... then the following measures are required.
96
NOTICE
Thermal overload
In addition to the load torque, the ramp-up (accelerating) time is essentially influenced by
the moment of inertia to be accelerated. While ramping up 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.
Operating Instructions, 10/2023, A5E46712792A
1FU9
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