Mounting
4.4 Mounting conditions
1FK7 G2 synchronous motors
Operating Instructions, 05/2021, A5E50907562B AA
59
Effect of thermally insulated/non-insulated mounting without and with gearbox
A Characteristics for non-thermally insulated mounting
1 Characteristic without mounted gearbox
2 Characteristic with mounted gearbox
B Characteristics for thermally insulated mounting
1 Characteristic without mounted gearbox
2 Characteristic with mounted gearbox
Figure 4-2
Effect of the mounting conditions on the S1 characteristic curve
4.4.2
Forced ventilation
This cooling method is achieved using a separate ventilation unit with a fan that is driven
independently of the motor.
The fan has degree of protection IP54.
WARNING
Risk of explosion when operated in hazardous environments
Operating the fan in an environment with inflammable, 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
inflammable, chemically corrosive, electrically conductive, or explosive dust or gases.