AL S
08.95
AL S/2-2
Siemens AG 1997 All Rights reserved 6SN1197–0AA20
SIMODRIVE 611 (PJ)
The complete motor is sealed with O rings. This corresponds to a mechanical
degree of protection IP 67 for the housing.
The motor shaft sealing can be taken from the overview Table 2-1. All seals use
Fluor rubber (FPM).
Table 2-1 Overview, degrees of protection acc. to DIN 40050
Degree of protection EN 60529
Shaft sealing using Applications
IP 64 Seal
In continuous operation, it is only per-
missible that a slight amount of mois-
ture is present in the area of the shaft
end flange.
IP 65
(only for 1FT6)
Gamma ring
The shaft gland is sealed against wa-
ter spray and cooling–lubricating me-
dium.
It is permissible that the gamma ring
runs dry (without any lubrication me-
dium).
Lifetime 20 000 h
IP 67
(only for 1FT5 and 1FT6*)
not for force–ventilated motors
*) for 1FK6 DE flange IP67
Radial shaft sealing ring DIN 3760
For gearbox mounting (for gearboxes
which are not sealed) to seal against
oil.
In order to guarantee the correct func-
tioning, the sealing lip must be ade-
quately cooled using gearbox oil.
Lifetime 5000 h
IP 68
(not for 1FK6)
refer to IP 67; further, for the mechani-
cal interfaces (bolts, bearing cover), a
whetting–type sealing medium is
used.
refer to IP 67
Engineering information when selecting the motor degree of protection
Often, there is no adequate protection against water, as generally oil–contain-
ing, penetrating and/or aggressive cooling–lubricating mediums are used.
The following table will help you to select the required degree of protection. In
addition to the theoretical DIN regulations, practical experience values have
been taken into account. If in doubt, always select the next higher degree of
protection.
Degree of
protection
(acc. to EN 60529)
General information on AC servomotors
2.1 Definitions 01.98
To Next Page
Loading...
Need help?
General