SA-15K Install Guide and Owner Manual

August 19
th
, 2022 46
Parallel Systems
Before Enabling Parallel Operation
A. Make sure all units in parallel have the same software version.
a. Check the following screen to verify your firmware
versions.
b. Go to https://www.sol-ark.com/software-update/ to
schedule an update or call/email Tech Support for
assistance.
B. Parallel systems REQUIRE a joint battery bank. If you do not have a
battery, you can keep all Sol-Ark's out of parallel and set every
System to Grid Sell Mode.
C. Dipswitches must be set appropriately, see fig. E & F
a. 2 Inverters: All dipswitches in DOWN position.
b. 3 Inverters: Dipswitches in Modbus Address order (1-3):
DOWN, UP, DOWN
c. 6 Inverters: Dipswitches in Modbus Address oder (1-6):
DOWN, UP, UP, UP, UP, DOWN
D. If you cannot evenly divide the number of PV panels connected to each inverter, it is recommended to have
more PV panels on the master inverter(Master 01) / leading inverter (Master 01 – Phase A).
Fig. F – Dipswitch positions (OFF = Down | ON = Up)
Fig. E – Dipswitch Location on 15K
a
A
2 Inverter Install
3 Inverter Install
6 Inverter Install