Commissioning
7.4 Switching on the motor
SIMOTICS A-1FV5/1PV5 synchronous/induction motors
Operating Instructions, 03/2014, 610.45002.40
47
7.4
Switching on the motor
Before you switch on the motor, ensure that the parameters of the frequency converter have
been assigned correctly.
NOTICE
Operation noise or abnormal noises
The motor can be damaged by improper handling during transport, storage, or setup. If a
damaged motor is operated, this can damage the winding or bearings and could even
destroy the system.
If the motor is not running smoothly or is emitting abnormal noises, shut the motor down
and try to determine the cause of the fault as it runs down.
CAUTION
Note the maximum rotational speed
The maximum rotational speed n
max
is the highest permissible operating speed.
The maximum speed is specified on the rating plate.
If the speed n
max
is exceeded, this can damage the bearings, short-circuiting rings, press
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.
7.5
Liquid cooling
The motor must always be connected to the cooling water supply when in operation.
NOTICE
If the cooling water supply fails or the motor is operated for a short time without cooling
water, this can cause it to overheat. This can result in material damage or destroy the motor
completely.
Never operate the motor without the cooling water supply. Monitor the permissible water
inlet temperatures.
WARNING
Risk of burning from hot steam
When cooling water enters the hot motor, this immediately generates hot steam that
escapes under high pressure. The cooling water system can burst. This can result in death,
serious injury or material damage.
Do not connect the cooling water supply until the motor has cooled down.