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8.3.1.4
Terminal boxes
The terminal box is not included in the scope of supply.
Note
The terminal box box must have as a minimum, degree of protection IP54 according to
DIN IEC 60034-5.
• Install the corresponding seals between the spindle box and terminal box, as well as
at the terminal box cover.
8.3.1.5
Recommended grounding
Note
A protective conductor / bearing shield must be connected at the spindle box through a
good electrical connection.
The spindle housing / bearing shield must be electrically connected to the cooling jacket.
• Use a protective conductor with the required minimum cross-section.
• Ground so there is a good conductive transition between the protective conductor and
spindle box protected against corrosion (e.g. bare contact surfaces with a coating of
Vaseline).
1
2
3
4
5
Figure 8-3
SIMOTICS M-1FE1 synchronous built-in motors
Configuration Manual, 09/2019, A5E47872980B AA
Stator
Cooling jacket
Spindle housing
Bearing shield
Ground connection with M8 screw
Recommended grounding
Electrical connection
8.3 System integration
113
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