Grounding Converter And Motor - Siemens Sinamics CU240D-2 DP Operating Instructions Manual

Installation
4.2 Electrical Installation
Additional requirements placed on the protective conductor
● For permanent connection, the protective conductor must fulfill at least one of the
following conditions:
– The protective conductor is routed so that it is protected against damage along its
– As a conductor of a multi-conductor cable, the protective conductor has a cross-
– For an individual conductor, the protective conductor has a cross-section ≥ 10 mm²
– The protective conductor consists of two conductors with the same cross-section.
● When connecting a multi-conductor cable using an industrial plug connector according to
EN 60309, the protective conductor must have a cross-section of ≥ 2.5 mm² Cu.
4.2.4

Grounding converter and motor

Grounding the converter
● Ground the converter via the PE connection in the mains supply connector.
● Ground the connectors as shown in the diagram below.
Figure 4-5
40
complete length.
Cables routed inside electrical cabinets or enclosed machine housings are considered
to be adequately protected against mechanical damage.
section ≥ 2.5 mm² Cu.
Cu.
Grounding the line supply and motor connectors
①
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
: