Siemens SIMOTICS S-1FT7 User Manual

Mechanical properties
3.1 Cooling
S-1FT7 synchronous motors
Configuration Manual, 09/2018, A5E45099423B AA
39
3.1.2
Forced ventilation
This cooling method is achieved using a separate ventilation unit with a fan that is driven
independently of the motor. This 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.
WARNING
Hair, clothing and other objects can be drawn in
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.
Note
Ensure that the motor is only operated when the separately driven
fan is running.
Operate the fan only with normal ambient air.
Table 3- 2 Air flow direction of the forced ventilation
Motor
Air flow direction
For 1FT706□ to 1FT7117
NDE --> DE
For 1FT713□ DE --> NDE
Deposits of contaminated air can impair the heat dissipation of the motor or block the cooling
duct and overheat the motor.
● Position the motor so that the cooling air can freely flow in and out.
● Make sure that no heated discharged air is drawn in.
● Maintain the minimum clearance between the air intake and discharge openings and
adjacent components (see the "Minimum clearance" diagram).
● To remove the fan cover and connect the signal connector when the motor is installed,
maintain a minimum clearance of 125 mm.

Siemens SIMOTICS S-1FT7 Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FT7
Category	Engine
Language	English