31
EN-US
Monitoring the
Grid
Systems with
more than one in-
verter
For larger photovoltaic systems, it is possible to connect several inverters in parallel with-
out any problems.
240 V Delta : 120 V Stinger
240 V Delta
208 V Delta
Jumper positions:
120 V
120 V
240 V
240 V
240 V
(1)
(2)
(2)
240 V
240 V
240 V
(2)
(2)
(2)
208 V
208 V
208 V
(2)
(2)
(2)
(1)
(2)
IMPORTANT!
The resistance in the leads to the AC-side connection terminals must be as
low as possible for optimal functioning of grid monitoring.
NOTE!
The inverters Fronius IG 2500-LV and Fronius IG 4500-LV are designed
to be connected to three-phase systems. Utilities generally allow up to 6 kVA of
unbalance, but check with your utility and try to balance the installation. Try to bal-
ance the installation.
The connection to the grid should be done in the following way:
-
Connect Fronius IG No. 1, No. 4, No. 7, ... to L1 and L2
-
Connect Fronius IG No. 2, No. 5, No. 8, ... to L2 and L3
-
Connect Fronius IG No. 3, No. 6, No. 9, ... to L1 and L3
Summary of Contents for IG 2000
Page 2: ...0...
Page 4: ...2...
Page 6: ...4...
Page 10: ...8...
Page 15: ...General Information...
Page 16: ......
Page 21: ...Installation and Startup...
Page 22: ......
Page 50: ...48...
Page 51: ...Operation...
Page 52: ......
Page 80: ...78...
Page 81: ...Troubleshooting and Maintenance...
Page 82: ......
Page 95: ...Appendix...
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Page 113: ...111 EN US...
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