Fronius Fronius IG Plus 100, Operating Instructions Manual

Page: 39 / 157

31
Important !
- Set the jumper from the ‘SM
ON
’ position to the ‘SM
OFF
’ position for
correct measurement results
- Check the polarity and voltage of the solar module strings: the voltage
should be a max. of 600 V, the difference between the individual solar
module strings should be a max. of 10 V.
Ungrounded
System: Con-
necting Solar
Module
Strings
(continued)
Important
- When connecting solar module strings, you should use metal bolts or
string fuses with fuse covers in the fuse holder depending on the solar
module manufacturer instructions.
The metal bolts are included in the Fronius IG Plus scope of delivery.
- Place metal bolts with fuse covers in the fuse holders for unoccupied
DC+ terminals.
8
1
3
2
SM
OFF
7
max. 600 V
SM
ON
5
6
3
1
2
SM
ON
SM
OFF
CAUTION! Danger of damaging the inverter by overload.
- Only connect a maximum of 20 A to an individual DC termi-
nal.
- Connect the DC+ and DC- cables to the correct DC+ and
DC- terminals on the inverter.
Tightening torque 1.2 - 1.5 Nm