Siemens SINAMICS S150 NEMA, Operating Instructions Manual

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Electrical installation
4.2 Checklist for electrical installation
Enclosed Drives
56
Operating Instructions, 12/2018, A5E36652151A
4.2 Checklist for electrical installation
Use the following checklist to guide you through the electrical installation procedure for the
cabinet unit. Read the "Safety instructions" section at the start of these Operating
Instructions before you start working on the device.
Note
Checking the checklist
Check the first box in the column on the right if the action applies to your enclosed drive. In
the same way, check the boxes once you have finished the installation procedure to confirm
that the activities are complete.
Item Action Yes Completed
Power connections
1 The line-side and motor-side power cables must be dimensioned and routed in
accordance with the ambient and routing conditions. The maximum permissible
cable lengths between the drive and motor must be observed depending on the type
of cable used (see "Electrical installation/Power connections/Conductor cross-
sections and cable lengths").
The protective ground connection to the motor must be fed back directly to the
cabinet unit.
The cables must be properly connected with a torque of 50 Nm to the terminals of
the cabinet unit. The cables for the motor and low-voltage switchgear must also be
connected with the required torques.
2 The cables between the low-voltage switchgear and the cabinet unit must be
protected in compliance with NFPA 70 (National Electric Code) guidelines for
conductor protection. See "Technical specifications" for the appropriate fuses.
3 For strain relief, the cables must be clamped to the cable C-type mounting bar.
4 When EMI-shielded cables are used, screwed glands that connect the shield to
ground with the greatest possible surface area must be provided on the motor
terminal box. At the cabinet, the cables must be grounded with the clips supplied
with the EMC shield bus through the largest possible surface area (see section
"Electrical installation/EMC-compliant design").
5 The cable shields must be properly applied and the cabinet properly grounded at the
points designated for that purpose (see "Electrical installation/EMC-compliant
installation").
6 The voltages of the fan transformers in the Active Line Module (-G1-T10), Motor
Module (-T1-T10) and the internal power supply (-T10, only with option N70) must
be adapted to the supply voltage of the cabinet unit. Larger cabinet units have 2 fan
transformers each (-G1-T10/-T20) and (-T10/-T20) in the Active Line Module and in
the Motor Module, which must be set jointly (see "Electrical installation / Power
connections / Adjusting the fan voltage (-G1-T10, -T1-T10)" and "Electrical
installation / Power connections / Adjusting the internal power supply (-T10)").