Siemens SINAMICS G120D - Preparing for Commissioning

Installation
4.2 Electrical Installation
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
57
①
Transformer
②
Second level distribution with PE equipotential bonding
③
Metal frame
④
Short connection from the PE terminal to the metal frame.
⑤
Electrical connection of motor cable shield and connector body.
⑥
Electrical connection of motor cable
shield and motor terminal box via electrically conductive PG
gland.
⑦
Driven machine
⑧
Conventional grounding system.
• Standard, heavy-power PE conductors without special high-frequency properties.
• Ensures low frequency equipotential bonding as well as protection against injury.
⑨
Foundation ground
Figure 4-18 Grounding and high-frequency equipotential bonding measures in the drive system and
in the plant
For general rules for EMC compliant installation see also: EMC design guidelines
(http://support.automation.siemens.com/WW/view/en/60612658/0/en)