Siemens SINAMICS PM240-2 Hardware Installation Manual page 42

Connecting-up
Danger to life due to electric shock if there is poor touch protection
Death or injury can occur if accessible parts or connections, which are live, are touched.
• At all of the power connections carefully ensure that neither cables nor terminals can be
• Cover power connections that are not used so that they cannot be touched.
• Use the dummy plugs provided in the accessory pack to occupy unused terminals.
Danger to life due to fire or electric shock when using unsuitable residual current protection
devices
The inverter can cause a current to flow in the protective conductor. This current can cause
the residual current device (RCD) or residual current monitoring (RCM) to incorrectly trip
(nuisance trip). In the case of a fault (ground fault), the fault current can contain a DC
component, which prevents the RCD/RCM from tripping, with the risk of subsequent fault or
electric shock.
• Use the protection and monitoring devices recommended in the documentation.
Risk of injury due to hot surfaces
During operation and for a short time after the inverter shuts down, the surface of the
device can reach a high temperature.
• During this time, avoid any direct contact with the surface of the inverter.
Danger to life through electric shock as well as fire hazard due to protective devices that
either do not trip or trip too late
Overcurrent protective equipment that trips too late or not all can cause electric shock or
fire.
• In the case of a conductor-conductor or conductor-ground short-circuit, ensure that the
• You must additionally use a residual-current protective device (RCD) if, for a conductor-
• It is not permissible that the short-circuit current exceeds the SCCR or the I
42
WARNING
touched. Make the openings just large enough for the cables to be routed through.
WARNING
CAUTION
WARNING
short-circuit current at the point where the inverter is connected to the line supply
corresponds as a minimum to the requirements of the protective equipment used.
ground short circuit, the required short-circuit current is not reached. Especially for TT
line systems, the required short-circuit can be too low.
inverter and the disconnecting capacity of the protective equipment.
Hardware Installation Manual, 01/2017, A5E33294624B AE
of the
CC
Power Module PM240-2