Siemens SINAMICS G120P PM330 - Line Connection; Length of Motor Cables

Connecting up, switching on
4.2 Line, motor and DC link connection
Power Module PM330
32 Hardware Installation Manual, 10/2016, A5E32844552B AD
Additional requirements placed on the protective conductor of the line feeder cable:
● For permanent connections, 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
complete length.
Cables routed inside electrical cabinets or enclosed machine housings are considered
to be adequately protected against mechanical damage.
– As a conductor of a multi-conductor cable, the protective conductor has a cross-
section ≥ 2.5 mm² Cu.
– For an individual conductor, the protective conductor has a cross-section ≥ 10 mm² Cu.
– 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.
4.2.2
Line connection
Open the terminal covers of the converter.
Connect the protective conductor of the power supply cable to terminal PE of the inverter.
Connect the power supply cable to terminals U1, V1 and W1.
When using copper busbars, the same cross-sections should be used as the connecting
busbars of the device itself:
● Frame size GX: 52 mm x 4 mm
● Frame size HX: 64 mm x 8 mm
● Frame size JX: 80 mm x 8 mm
4.2.3
Length of motor cables
With the following cable lengths, the converters operate according to the datasheet
specifications:
Table 4- 2 Permissible cable length depending on the EMC category
Cable used
Maximum cable lengths
EMC category
(according to EN 61800-3)
Shielded cable, devices with ex-
ternal line filter
100 m C2
*)
Shielded cable, devices without
external line filter
100 m C3
*)
*)
EMC-compliant connection required, also see EMC compliant connection (Page 49)