Wiring The Terminal Strip - Siemens SINAMICS G120C Operating Instructions Manual

Installing
4.8 Connecting the inverter
4.8.9

Wiring the terminal strip

NOTICE
Damage to the inverter when using long signal cables
Using long cables at the inverter's digital inputs and 24 V power supply can lead to
overvoltage during switching operations. Overvoltages can damage the inverter.
• If you use cables of more than 30 m at the digital inputs and 24 V power supply, connect
Danger to life as a result of hazardous voltages when connecting an unsuitable power
supply
Death or serious injury can result when live parts are touched in the event of a fault.
• For all connections and terminals of the electronic boards, only use power supplies that
Danger to life due to electric shock caused by sparkovers to the motor temperature sensor
cable
Voltage flashovers to the electronics of the inverter can occur in motors without safe
electrical separation of the temperature sensors when the motor develops a fault.
• Only use motor temperature sensors that fully comply with the specifications of the
Table 4- 3
Solid or finely stranded
80
an overvoltage protection element between the terminal and the associated reference
potential.
We recommend using the Weidmüller overvoltage protection terminal with designation
MCZ OVP TAZ DIODE 24VDC.
WARNING
provide PELV (Protective Extra Low Voltage) or SELV (Safety Extra Low Voltage)
output voltages.
WARNING
electrical separation according to IEC 61800-5-1. dragon
Permissible cables and wiring options
Flexible conductor with
cable non-insulated end
Flexible conductor with
non-insulated end
sleeve
Operating Instructions, 07/2015, FW V4.7 SP3, A5E34263257B AC
Two finely stranded
cables with the same
sleeve cross-section with par-
tially insulated twin end
sleeves
SINAMICS G120C converter