Siemens SINAMICS G120P PM330, Installation Manuals

Page: 31 / 98

Connecting up, switching on
4.2 Line, motor and DC link connection
Power Module PM330
Hardware Installation Manual, 10/2016, A5E32844552B AD
31
4.2 Line, motor and DC link connection
Arrangement of the converter terminals, see Access to power and motor terminals
(Page 34).
For all connections, carefully observe EMC regulations, see EMC compliant connection
(Page 49).
4.2.1 Protective conductor
WARNING
Danger to life caused by high leakage currents for an interrupted protective conductor
The drive components conduct a high leakage current via the protective conductor.
Touching conductive parts when the protective conductor is interrupted can result in death
or serious injury.
•
Dimension the protective conductor as stipulated in the appropriate regulations.
Dimensioning the protective conductor
Observe the local regulations for protective conductors subject to an increased leakage
current at the site of operation.
The minimum cross-section of all protective conductors routed in the control cabinet
depends on the cross-section of the line or motor feeder cable:
● Line or motor feeder cable ≤ 16 mm
2
⇒ Minimum cross -section of the protective conductor = cross-section of the line or motor
feeder cable
● 16 mm² < line or motor feeder cable ≤ 35 mm
2
⇒ Minimum cross -section of the protective conductor = 16 mm
2
● Line or motor feeder cable > 35 mm
2
⇒ Minimum cross -section of the protective conductor = ½ cross-section of the line or
motor feeder cable