nord 6051302, Operating And Assembly Instruction Manual

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Motors – Operating and Assembly Instructions
46 B 1091 en-2722
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3.4.2 External fan
Motors having the additional labelling F (e.g. 80LP/4 3D TF F ) are equipped with an external fan and
have to be monitored via the installed temperature sensor.
WARNING
Explosion hazard
The motor may only be commissioned together with the external fan. A failure of the external
fan may lead to overheating of the motor and thus to material damage and/or personal injury
or even the ignition of an explosive atmosphere.
Observe the operating instructions of the external fan!
The external fan is separately supplied with voltage via the external fan’s terminal box. The external
fan’s supply voltage must match the voltage information indicated on the name plate. Suitable monitoring
devices shall protect the external fan against overheating. The IP protection classes of the external fan
and the motor may deviate. The lower IP protection class applies to the drive unit. The cable glands
must at least match the protection class indicated on the name plate. Unused openings must be sealed
with blind plugs that comply with at least the motor protection class.
External fans and motors for use in explosion hazard areas have Ex labelling according to
RL 2014/34/EU. The label must be available on the external fan and on the motor. If the labels deviate
between external fan and motor, the lower labelled explosion protection applies to the entire drive. If the
surface temperature is indicated, the indicated maximum temperature of the individual component
applies to the entire drive unit. In this context, any existing gear unit must be observed. Please contact
Getriebebau NORD in case of uncertainties. If any one component of the entire drive has no Ex labelling,
the entire drive must not be commissioned in explosion hazard areas.
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