Routing cables outside the control cabinet
● Maintain a minimum clearance of 25 cm between cables with a high level of interference
and cables with a low level of interference.
● Using shielded cables for the following connections:
– Inverter motor cable
– Cable between the inverter and braking resistor
– Signal and data cables
● Connect the motor cable shield to the motor enclosure using a PG gland that establishes
a good electrical connection.
Requirements relating to shielded cables
● Use cables with finely-stranded, braided shields.
● Connect the shield to at least one end of the cable.
%DUHVKLHOG
0RXQWLQJSODWH
6KLHOGSODWH
&RQQHFWVKLHOG
7RRWKHG
WDSH
+RVHFODPS
Figure 4-4
Examples for EMC-compliant shield support
● Attach the shield to the shield support directly after the cable enters the cabinet.
● Do not interrupt the shield.
● Only use metallic or metallized plug connectors for shielded data cables.
Installing
4.1 EMC-compliant setup of the machine or plant
SINAMICS G120C converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
45