YASKAWA PVI 23 TL Installation And Operation Manual page 28

PVI 23TL, 28TL Installation and Operation Manual (Rev J)
WARNING: Strings must be balanced for optimum performance and AC output.
When calculating DC/AC ratio sizing, perform calculations on the zone level unless
you intend to combine MPPTs.
5.2.1 Setting the Inverter to Operate with Two Independent MPPTs
The two MPPT zones can be separated using the following steps:
1. Disconnect all AC and DC sources to the inverter.
2. Remove the Lexan cover of the wiring box.
3. Use a #2 Philips head screwdriver to remove the busbar that connects INV 1 + & INV 2+ at the
top (see Figure 5.4 next page).
DOCR-070365-J
1
2
PV1+
3
4
1
2
PV2 +
3
4
1
2
PV1-
3
4
1
2
PV2-
3
4
Figure 5.3 – Two MPPTs Operating Independently
IN1+
Inv 2+
Inverter
Inv 1-
IN2-
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