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6.2.8
Performing connection operations
1. Before closing the terminal box, please check that:
– The electrical connections in the terminal box are tight and are in full compliance with
the specifications above.
– The required clearances in air of 10 mm are maintained.
– Wire ends do not protrude.
– The inside of the terminal box is clean and free of any cable debris.
– All seals and sealing surfaces are undamaged.
– The connecting cables are arranged so that they do not come into contact with the
machine, and the cable insulation cannot be damaged.
– unused entry points are sealed. The sealing elements are firmly screwed in, i.e. they
can only be removed with a tool.
– The cable/conductor glands are fitted compliant with the specifications regarding degree
of protection, cable routing type, permissible cable diameter etc.
2. Then close the terminal box with the terminal box cover fixing screws.
See also
Tightening torques for screw and bolt connections (Page 163)
6.2.9
Internal equipotential bonding
The internal equipotential bonding between the grounding terminal in the box enclosure and
the motor frame is established through the terminal box retaining bolts. The contact locations
underneath the bolt heads are bare metal and protected against corrosion.
The standard cover fixing screws are sufficient for equipotential bonding between the terminal
box cover and terminal box housing.
Note
Connecting points are available at the frame or bearing end shield to connect an external
protective conductor or potential bonding connector.
See also
Connect up the ground conductor (Page 68)
Electrical connection
6.2 Connecting
SIMOTICS M-1PH8 1PH818., 1PH822., 1PH828.
74
Operating Instructions 10/2017
Содержание SIMOTICS M-1PH818
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Страница 66: ...Mounting 5 5 Refitting the external fan SIMOTICS M 1PH8 1PH818 1PH822 1PH828 66 Operating Instructions 10 2017 ...
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