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6.4
Electrical requirements
Table 6-1
Object
Cable length (motor side)
Cable length (line side)
Table 6-2
Object
Power cable
Cabinet protective conductor
See also
Torques (Page 156)
6.5
Connection
6.5.1
Manually unlocking power-unit doors
To ensure operator protection, the drive is equipped with an electromechanical door
interlocking system. The doors cannot be opened until the make-proof grounding switch has
been closed. In the event of a complete voltage failure including failure of the auxiliary voltage,
the doors cannot be released via the grounding switch.
Because the drive is not yet connected, the doors are locked electromechanically. In order to
facilitate assembly and installation of the drive, the doors can be opened manually.
See also
Opening the doors (Page 145)
SINAMICS SM150 6SL3810-7NN38-0AA1
Operating Instructions Rev.201910281406 EXAMPLE
Dimensioning cables
Length
100 m with one or two parallel ca‐
bles;
80 m with 3 or 4 cables in parallel
Cables must be shielded
1,000 m with output reactor (op‐
tion L08)
70 m
Cable cross-sections
Cross-section
Max. 240 mm
Max. 120 mm²
Capacitance per unit length max.
0.45 µF/km
Comments
Two per terminal (Basic Line Module)
2
Three per terminal (Motor Module)
-
Electrical connection
6.5 Connection
97
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