Electrical Connection - Siemens Sinamics S120 Manual

10.2.7

Electrical connection

Note
Only the enclosure cover may be opened when electrically connecting the Voltage Protection
Module.
Introduction
Various types of cabling work must be carried out in order to integrate a Voltage Protection
Module into a motor feeder circuit. All connections must be set up inside the VPM housing.
Cable cross-sections are determined by the rated motor power and may be as much as 2 x
50 mm
below. It is particularly relevant for larger cross-sections.
Danger to life 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.
• Secure the energy sources against switching on again.
Preparation
The following preparations must be made before setting up connections:
● Loosen the 4 screws on the cover of the housing, so that the cover can be shifted in the
● Move the enclosure cover to the point where the cutout widens out so it can be lifted over
● Attach the cable glands for the signal cable and power cables (2x for the VPM120, 4x for
● Remove 300 mm of the cable sheath of the power cables and expose the shield to match
● Remove the insulation at the ends of the individual conductors and attach cable lugs.
● Attach the signal cable to X3 and secure the cable with cable ties inside the Voltage
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
for each conductor. An installation sequence for individual conductors is outlined
2
DANGER
cutouts.
the screw heads.
the VPM200) at the entries into the housing of the Voltage Protection Module.
the housing gland being used.
Protection Module.
Motor-side power components
10.2 Voltage Protection Module VPM
611