Siemens 1PH813 Operating Instructions Manual page 52

Synchronous/induction motors
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Commissioning
7.1 Measures prior to commissioning
Electrical connection
● The motor is connected so that it rotates in the direction specified.
● The minimum insulation resistance values are maintained.
● The grounding and equipotential bonding connections have been established correctly.
● All brakes are operating correctly.
● The indicated speed limit n
Monitoring equipment
● Appropriately configured control and speed monitoring functions ensure that the motor
● Any supplementary motor monitoring devices and equipment have been correctly
Cooling
Water cooling
If water cooling is used, the cooling water supply must be connected and ready for
operation. The cooling water circulation (flow rate, temperature) complies with
requirements.
Forced ventilation
All safety and functional issues must be checked prior to commissioning. A checklist, which
does not claim to be exhaustive, is provided below to help you in this regard.
Forced ventilation: the fan functions properly and rotates in the right direction.
Compare the data for the forced ventilation unit with the connection data. The forced
ventilation unit must not be connected if the connection data differs from the data for the
forced ventilation unit in any way that would result in overload.
Check the electrical installation (e.g. protective conductor fitting) of the forced ventilation
unit (including accessories).
Check the installation and electrical installation of safety-relevant components, such as
motor circuit breakers, guards, and so on.
Make sure that the PG glands are properly sealed.
Remove any parts located in the discharge area of the fan or in the vicinity of the fan blade.
An arrow on the fan rating plate indicates the correct direction of rotation of the fan. An
arrow is also marked on the fan blades. You can check the direction of rotation visually
when the fan starts up. This must be the same as the direction of the arrow on the fan
rating plate.
52
CAUTION
If the speed n
is exceeded, this can damage the bearings, short-circuiting rings, press
max
fits, etc. To ensure that the motor does not run at excessive speeds, the controller must
configured accordingly or speed monitoring must be activated in the drive system.
cannot exceed the permissible speeds specified on the rating plate.
connected and are fully functional.
is not exceeded during operation on a converter.
max
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22

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