Transport, installation and assembly
3.13 Connection of the external fan motor
A5E01083943A AB
Siemens AG Operating Instructions 2.02 1FW4
57
● any cable entries which are not used are sealed and the plugs are tightly screwed in (i.e.,
so that they can only be removed using the suitable tool).
● all of the seals/gaskets and sealing surfaces of the terminal box are in a good condition.
● for screw terminals, ensure that all of the terminal screws have been firmly tightened. (this
also applies to unused terminals).
[ID 816.01]
3.13 Connection of the external fan motor
Protective circuit
A protective circuit must be provided for electric motors with an attached fan unit. This
protective circuit must ensure that the main machine cannot be switched on unless the fan
unit is in operation.
Direction of rotation
The direction of rotation of the fan unit must match the arrow indicating the direction of
rotation. The fan impeller is visible through the air inlet opening in the fan cowl on the motor.
If the direction of rotation is incorrect, this can be changed by swapping over two of the
phase conductors in the terminal box of the fan motor.
Connection
Connect the fan motor in accordance with its terminal connection diagram located in the
associated terminal box and in accordance with any information provided on plates.
● In particular, check whether
– the line voltage and line frequency match the details on the rating plate,
– the cross-sections of the designated connecting cables are matched to the rated
current of the motor (with due consideration for the relevant installation directives).
● First connect the protective conductor to the protective conductor terminal.
● Then establish the other electrical connections as per the circuit diagram.
● If the fan is supplied with a connector already attached, then you must check whether the
pin allocation of the connector matches the pin allocation of the socket. [ID 1157.00]
To Next Page
Loading...
Need help?
General