WARNING!
Danger due to incorrect or insufficient solar module grounding.
An electric shock can be fatal.
▶
The inverter is designed for solar module grounding at the negative pole as
standard. Solar module grounding is carried out via a GFDI fuse in the invert-
er.
▶
When operating ungrounded solar modules, remove the GFDI fuse before
starting operation and adjust the inverter grounding settings accordingly.
▶
When operating solar modules with grounding at the positive pole, the solar
modules are not grounded via the fuse in the inverter, but rather must be
grounded externally to the inverter.
CAUTION!
Danger due to improperly connected terminals.
This can result in thermal damage to the inverter, which can lead to fires.
▶
When connecting the AC and DC cables, make sure that all terminals are
tightened securely using the proper torque.
CAUTION!
Danger due to overload on the inverter.
The inverter may be damaged.
▶
Only connect a maximum of 20 A to each DC terminal.
▶
Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on
the inverter.
▶
Observe the maximum DC input voltage.
NOTE!
Do not connect the ground to the negative DC line at any point!
This is already done within the inverter. If negative DC lines are connected to the
DC terminals or prior to this to the ground, this will circumvent the GFDI protec-
tion system, preventing your inverter from properly detecting a fault current. In
addition, turning the DC disconnector to the "OFF"/open circuit condition will
not disconnect the PV modules from ground, as it only disconnects the DC posit-
ive.
NOTE!
When connecting aluminum cables:
▶
Follow all national and international guidelines regarding the connection of
aluminum cables.
▶
Follow the instructions of the cable manufacturer.
▶
Perform an annual check to ensure that the cables are firmly attached ac-
cording to the proper torque.
NOTE!
When connecting DC cables, ensure the polarity is correct.
NOTE!
Form a min. 4 in. (100 mm) cable loop with all cables.
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