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Preparations for use
4.6 Interlock circuit for the external fan motor
4.4
Ensuring cooling
Ensure that the machine is sufficiently cooled by the cooling air flow at the installation site:
● Ensure that the cooling air can flow in and out unobstructed. The full air flow provided by
● Make sure that the machine does not draw in the hot discharged air again.
● For machines with a vertical type construction with an air intake from above, ensure that
4.5
Ensuring cooling
● In the case of internally cooled motors that are designed for pipe ventilation and/or operation
● The full air flow provided by the fan is only achieved if air can freely enter the impeller. A
● Shipping covers on the ventilation openings must be removed.
● If a higher degree of protection is required, it may be necessary to install appropriate filters
● All parts must be mounted free from strain.
● On machines that are fitted with an external fan or other heat exchangers, please comply
4.6
Interlock circuit for the external fan motor
Interlock circuit for the external fan motor
For machines with external fans, install an interlock circuit that prevents the main machine
being switched on if the external fan is not operational.
See also
Connecting an external fan motor (Page 60)
24
the fan is only possible if air can freely enter the impeller. In the axial direction, ensure a
clearance of at least 1 x air intake diameter.
the air inlets are protected against the ingress of foreign bodies and water.
with a separately driven fan depending on the intended cooling method, pipes and fan of
an appropriate type of construction and rating must be connected.
clearance of at least 1 times the air intake diameter must therefore be provided in the axial
direction.
and arrange the intake and/or outlet openings specially as needed.
with the relevant operating instructions.
SIMOTICS DC 1HQ7
Operating Instructions 02/2016
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