40
DC+
5
2
DC-
1
DC+
Connecting
Solar Module
Strings
(continued)
NOTE
Connecting the
DC wiring with the wrong
polarity may cause dama-
ge to the inverter.
Check both the polarity
and the open circuit volta-
ge.
The DC Voltage must not exceed
600 V, regardless of temperature.
3
6
2
DC-
1
DC+
1.33 ft. lb.
NOTE
Form a min. 4 in. wire loop using all wires.
7
4
1
2
2
2
3
3
1
2
8
SM
ON
SM
OFF
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 DC-
voltage must not exceed 600 V, the difference between the individual
solar module strings should be less than 10 V.
1.33 ft. lb.
Tightening torque for solid and stranded
wires
Tightening torque for solid and stranded
wires
Summary of Contents for IG Plus 12.0-3
Page 2: ......
Page 4: ...ud_fr_st_et_01382 012008...
Page 6: ......
Page 16: ...6...
Page 17: ...7 General Information...
Page 18: ...8...
Page 24: ...14...
Page 25: ...15 Installation and Startup...
Page 26: ...16...
Page 80: ...70...
Page 81: ...71 Operation...
Page 82: ...72...
Page 122: ...112...
Page 123: ...113 Troubleshooting and Maintenance...
Page 124: ...114...
Page 149: ...139 Appendix...
Page 150: ...140...