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Operation
8.4 Non-operational periods
8.1.1
Safety instructions in operation - anti-condensation heating
Overheating as a result of the anti-condensation heating
If the anti-condensation heating is operated while the machine is operational, this can increase
the temperatures inside the machine and cause material damage.
• Install an interlock circuit that switches off the anti-condensation heating once the main
machine is switched on.
• Only switch on the anti-condensation heating after the motor has been switched off. Comply
with the data stamped on the plate of the anti-condensation heating, if available.
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.
3. Check the bearing temperature and the stator winding temperature if this is possible using
the available measuring equipment.
8.3
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
8.4
Non-operational periods
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.
80
NOTICE
Thermal overload of motors connected directly to the line supply
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 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 specified in the catalog or the
order documentation.
1PC1423 roller-table motors SH 112 ... 400
Operating Instructions
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