Mechanical properties of the motors
3.4 Degree of protection
1FT7 Synchronous Motors
62 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
3.4 Degree of protection
Degree of protection designation
The degree of protection designation in accordance with EN 60034-5 (IEC 60034-5) is
described using the letters "IP" and two digits (e.g. IP64).
IP = International Protection
1st digit = protection against ingress of foreign bodies
2nd digit = protection against harmful ingress of water
Since most cooling lubricants used in machine tools and transfer machines are oily, creep-
capable, and/or corrosive, protection against water alone is insufficient. The motors must be
protected by suitable covers.
Attention must be paid to providing suitable sealing of the motor shaft for the selected
degree of protection for the motor.
Sealing air connection
Note
For critical applications with highly creep-capable media, the 1FT7 motors can be ordered
with a sealing air connection (only in conjunction with IP67) via the Z option Q12.
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Figure 3-3 Sealing air connection
As delivered from the factory, the sealing air connection is sealed with a plastic plug.
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