Siemens SINAMICS G120C - Equipment damage due to electric fields or electrostatic discharge; Warranty and liability for application examples

Installing
3.2 Connecting
SINAMICS G120C converter
Getting Started, 04/2014, FW V4.7, A5E34264105B AA
21
3.2.2
Installing the converter in compliance with EMC rules
Rules for EMC-compliant cable routing
Preconditions
● The inverter is mounted on a metal mounting plate. The mounting plate is unpainted and
has good electrical conductivity.
● Use shielded cables for the following connections:
– Motor and motor temperature sensor
– Braking resistor
– Fieldbus
– Inputs and outputs of the terminal strip
Procedure
To install the inverter cables in compliance with EMC rules, proceed as follows:
1.
Expose the shields of the shielded cables.
2.
Place the shields on the mounting plate or on the
inverter shield plate using EMC clamps.
You have wired the inverter in an EMC-compliant fashion.
EMC
-compliant wiring shown using the
example of a frame size A inverter
①
Unshielded line supply cable
②
EMC clamps (serrated rails) on the
shield plate of the Power Module
③
Shielded cable to the braking resistor
④
EMC clamp for the cable to the
terminal strip on the shield plate of the
CU
⑤
Shielded cable to the terminal strip
⑥
Shielded motor cable