Electrical Connection - Siemens SINAMICS S120 System Manual

5.7

Electrical connection

Danger of death due to electric shock when live parts are touched
Death or serious injury can result when live parts are touched.
• Bring the system into a no-voltage condition by opening the main switch.
• Take measures to prevent reconnection of the energy sources.
Note
It is only permissible to open the enclosure cover to electrically connect the Voltage
Protection Module.
Various preparatory work is required to connect the Voltage Protection Module to the HF
Choke Module. Cable cross-sections are determined by the rated motor power and can be
up to 2 x 50 mm
Prepare the Voltage Protection Module to install cables
1. Loosen the 4 screws on the cover of the housing, so that the cover can be shifted in the
cutouts.
2. Slide the enclosure cover to the widest part of the cutout and remove the cover.
3. Secure the cable glands for the signal cable and the power cables to the enclosure cable
entries of the Voltage Protection Module.
4. Remove 300 mm of the power cable sheath (insulation) to expose the shield.
5. Strip the ends of the individual cores and attach the cable lugs.
6. Attach the signal cable to X3 and secure the cable with cable ties inside the Voltage
Protection Module.
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
DANGER
for each conductor.
2
Voltage Protection Module (VPM)
5.7 Electrical connection
83