Operation - Siemens SIMOTICS M-1PH8 Operating Instructions & Installation Instructions

Explosion hazard if the bridging is removed from the insulated bearing
Removing the factory-fitted bridging of the insulated bearing leads to potential differences
between the rotor and the grounded motor. This can cause the generation of sparks, which
especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or
material damage will result.
Do not open the bridging of the bearing insulation during operation.
CAUTION
Periodic duty
For all operating modes, operate the external fan according to DIN EN 60034-1. Also for non-
periodic operation, the machine can be thermally overloaded. This can result in damage to
the machine.
In the case of extended non-operational periods, the fan should be in operation until the
machine has approximately reached the temperature of the coolant, see S2-operation in
DIN EN 60034‑1.
Use a suitable circuit to ensure that the external fan is appropriately operated.
8.3

Operation

● After starting the motor, observe it for a while to see if it is running smoothly and check the
● Monitor operation and the monitoring devices regularly and record the values you read off.
SIMOTICS M-1PH8
Operating Instructions 05/2012 A5E03986435A AA
DANGER
monitoring devices.
CAUTION
Speed monitoring
The motor is designed for a certain speed range.
If a motor is operated at impermissible speeds damage to the winding, bearings, or
complete destruction of the motor can be the result.
Ensure that the speeds specified on the rating plate are not exceeded by appropriately
configuring controller and speed monitoring components.
Operation
8.3 Operation
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