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During operation, the sealing grease in the chamber slowly runs out via the labyrinth and seals
it, additionally removing dust from inside and around the outside of the labyrinth ring.
Terminal box
Depending on the machine design, the following terminal boxes are generally used for
connecting the cables:
Terminal box
GT640
1XB1621
1XB1631
1XB7730
1XB7731
1XB7740
1XB7750
Depending on the terminal box and version, it is possible to rotate the terminal box through ±90°
in accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center. If you wish to retrofit using a different
terminal box at a later date, please contact the Service Center (Page 171).
See also
Rotating the terminal box (Page 80)
Terminal box (Page 76)
Note
You can find more information in Chapter 2 of catalog D81.8.
Supplementary devices
Depending on the order, various supplementary devices can be installed or mounted. These
include sensors for bearing temperature monitoring or winding monitoring, for example.
Anti-condensation heating (option)
The machine is fitted with anti-condensation heating. The connection data is listed on an
additional plate on the machine.
SIMOTICS FD 1LN1
Operating Instructions 01/2019
Comment
Only for machines on the
power supply
2 × 1XB1631
2 × 1XB7740
Application
Not for explosion-proof versions
Not for IEC explosion-proof versions
Not for IEC explosion-proof versions
Not for IEC explosion-proof versions
Description
27
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