The fan has degree of protection IP66.
WARNING
Danger of explosion when operated in hazardous zones
Operating the fan in an environment with inammable, chemically corrosive, electrically
conductive, or explosive dust or gases can cause explosions and result in death or serious injury.
• Operate the motor with forced ventilation only in an environment that is free of
inammable, chemically corrosive, electrically conductive, or explosive dust or gases.
Only operate the fan with normal ambient air.
WARNING
Drawing in hair, items of clothing and other objects
For example, hair, neckties, loose objects can be sucked into the air intake and cause death or
serious injury.
• Take measures to prevent objects from being sucked in, e.g.
– Wear a head covering or hair net,
– Remove any neckties or similar,
– Keep the air intake area free.
Direction of the fan air ow
(NDE→DE drive output)
Notes for operating the motor with forced ventilation
Note
Ensure that the motor is only operated when the external fan is running.
Note
Deposits of contaminated air can impair the heat dissipation of the motor or block the cooling
duct and overheat the motor.
• Regularly clean the motor to remove any deposits
Mounting and options
4.5Cooling
SIMOTICS S-1FT2 synchronous motors for SINAMICS S120
Operating Instructions, 12/2023, A5E50610821B AF 47
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