Connecting - Siemens SINAMICS G120 Hardware Installation Manual

Connecting

Install the inverters so that you are compliant with local regulations for erecting and installing
low voltage systems.
Danger to life through electric shock due to the residual charge of the DC link capacitors
Because of the DC link capacitors, a hazardous voltage is present for up to 5 minutes after
the power supply has been switched off.
Contact with live parts can result in death or serious injury.
● Do not open the protective covers or the terminal covers of the device until 5 minutes have
● Before starting any work, check that the system is in a voltage-free state by measuring all
● Ensure that the associated warning plate in the appropriate language is attached.
Note
Operating displays for inverter operation
If, when switching over a function from ON to OFF, an LED or other similar display is not lit or
not active; this does not indicate that the device is switched-off or in a no-current condition.
Note
Safety devices
Install suitable protective equipment between the line supply and inverter.
To protect against indirectly touching part of the motor circuit of an inverter and to automatically
shut down in the case of a fault according to DIN EN 60364-4-41 (VDE 0100-410).
support.automation.siemens.com/WW/view/en/103474630)
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.
Power Module PM230, IP20 / Push-through technology (PT)
Hardware Installation Manual, 08/2016, A5E34331322B AB
DANGER
elapsed.
terminals, also to ground.
Technical specifications (Page 57)
WARNING
5
(http://
39