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6.5.4
Connecting power cables
①
②
Figure 6-5
1. Clean the contact surfaces
2. Apply a thin film of grease. Electrolube 2G is a suitable lubricator.
3. Screw the cable lug with a M12 screw and, if necessary, with a washer to the contact
4. Remove the cable shield. Fasten the cable with cable clamps
6.5.5
Connect the power cable to the motor and the supply system
When connecting the cables, observe all the conditions regarding conductor protection. Do not
exceed the permitted cable lengths between the converter output and motor. The distance
between the motor cable and the signal cable should be at least 20 cm. Do not lay grid-side and
motor supply cables in parallel to each other.
The positions of the connections are shown in the layout diagrams. Detailed wiring notes for the
converter are contained in the circuit manual of the converter.
SINAMICS SM150 6SL3815-7NP41-0AA1
Operating Instructions Rev.201910281301 EXAMPLE
Contact surface
Cable clamp
Example: Connecting the power cables
a lintless cloth for cleaning.
surface. Tighten the nut (torque: 50 Nm).
①
immediately before screwing the connections. Use spirit and
Electrical connection
6.5 Connection
②
to the cable support trail.
107
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