116
connectors included in the scope of delivery must not be used. In this case MC4 Evo2 con-
nectors must be used.
Note(9):
• The voltage difference between MPPTs should be less than 80 V.
• The voltage of the configured string should be higher than the lower limit of the rated
MPPT voltage.
Note(10):For inverters without a DC switch, it is necessary to prepare an external DC switch
according to AS 60947.3.
10.2 Wring Distance of DI Dry Contact
The wiring distance between DI dry contact terminals must meet the requirements in the ta-
ble below. The wiring distance L is the total length of all DI signal cables.
L
K
refers to the cable length in one direction between the DI dry contact terminal of the k
th
in-
verter and the corresponding terminal of the (k-1)
th
inverter.
table 10-1 Correspondence Between Inverter Quantity and Maximum Wiring Distance
Number of
Inverter
Maximum Wiring Distance(unit:m)
16AWG / 1.31mm
2
17AWG / 1.026mm
2
1 13030 10552
2 6515 5276
3 4343 3517
4 3258 2638
5 2606 2110
6 2172 1759
7 1861 1507
8 1629 1319
9 1448 1172
10 1303 1055
11 1185 959
12 1086 879
13 1002 812
14 931 754
10 Appendix User Manual
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