Commissioning
7.1 Measures prior to commissioning
1FT7 synchronous motors
40 Operating Instructions, 04/2010, 610.40075.40b
Electrical connection
Make sure that:
● The grounding and equipotential bonding connections have been established correctly.
● The brake is operating correctly.
● The indicated speed limit n
max
is not exceeded during operation on a converter.
Monitoring equipment
Make sure that:
● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified on the rating plate.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are fully functional.
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.
Make sure that:
● The data for the forced ventilation unit matches 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.
● The electrical installation (e.g. protective conductor fitting) of the forced ventilation unit
(including accessories) has been performed correctly.
● The mounting and electrical installation of safety-related components such as motor
circuit breakers, protective grilles, etc., have been performed correctly.
CAUTION
Always operate the motor with the separately driven fan switched on.
If the separately driven fan fails or the motor is operated for a short time without forced
ventilation, this can cause it to overheat. This can result in material damage or destroy
the motor completely.
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