26 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
The inverter is equipped with a grounding conductor monitoring
device. This grounding conductor monitoring device detects
when there is no grounding conductor connected and
disconnects the inverter from the utility grid if this is the case.
Depending on the installation site and grid configuration, it may
be advisable to deactivate the grounding conductor monitoring.
This is necessary, for example, in an IT system if there is no
neutral conductor present and you intend to install the inverter
between two line conductors. If you are uncertain about this,
contact your grid operator or AISWEI.
Safety in accordance with IEC 62109 when the grounding
conductor monitoring is deactivated.
In order to guarantee safety in accordance with IEC 62109
when the grounding conductor monitoring is deactivated,
carry out one of the following measures:
• Connect a copper-wire grounding conductor with a cross-
section of at least 10 mm² to the AC connector bush insert.
• Connect an additional grounding that has at least the same
cross-section as the connected grounding conductor to the
AC connector bush insert. This prevents touch current in the
event of the grounding conductor on the AC connector bush
insert failing.
