Parallel System Application Note / Compatibility Reference - sol-ark 12K Install Manual & Owner’s Manual

•
Communication lines must be connected between parallel units as shown in the wire diagrams section
o CAT 6 may be used for this purpose
•
Program all units to "Parallel" in the basic setup screen under the parallel tab
o Set one system to "Master" and give it address 1
o Set all others to "Slave" and addresses 2,3,4...
o Only pick phases for 120V/208V instillations
o Power up slaves first then master
▪
You will get an F46 error (Parallel_Aux_fault) until both slaves and master are on.
•
All systems in parallel must be connected to the same battery bank via their own battery connections
•
Note: The values shown on the home screen of each system represent each system's contribution not the total
of the array.
•
If an error or fault occurs on any one unit, all units will shut down. They will automatically attempt to restart up
to 5 times before requiring a manual restart. If a manual restart is necessary, first resolve the issue that caused
the shutdown. For this reason, we recommend the use of a bypass switch for large installs (as shown in the
diagrams section).
o A manual restart requires powering down the system (no PV, no Grid, Main button off) for 30s. Then
power back up.
•
Rapid Shutdown:
o String Level
▪
Midnite MNLSOB-R1-600
o Module Level
▪
TIGO TS4-A-O
▪
TIGO TS4-A-F
▪
TIGO TS4-O
▪
TIGO TS4-O-DUO
o Disconnect / Transfer Switches Switches
▪
200A Non-Fused Transfer Switch Model # TC10324R (GE)
▪
200A Fused Transfer Switch Model #DG224NRK (Eaton)
o PV Fuses
▪
15A PV MC4 in-line fuse holder (ZOOKOTO or DPJ)
Parallel System Application Note
01
Compatibility Reference Guide
(This list is for reference only and is not exhaustive)
February 3, 2020 44