39
Selectronic Australia
Rev 41 - Dec 2022
Installation
Checking Managed AC Coupled Systems
For systems incorporating Managed AC Coupling, the following items should be verified.
on page 35 and other relevant sections should be completed first.
Refer to relevant installation document for the particular brand of
Selectronic Certified (SCERT) solar inverter and ensure the system has
been installed and commissioned according to that document before
completing the following checklist.
•
Turn on the DC supply to the SP PRO(s).
•
Long press SP PRO ON button so that the blue AC Load LED is lit.
•
If the solar inverter comes on with AC volts (Fronius SCERT), turn on
its AC. Leave off the PV volts.
•
If the solar inverter comes on with PV volts (ABB SCERT), turn on
the PV volts to the solar inverter. Leave off the AC volts.
•
Connect SP LINK to the SP PRO System Manager (L1 Manager).
Item to Check
Result
For Selectronic Certified solar inverter #1:
•
Click >
Data View
>
Now
to check that all configured inverters show up under the
AC Coupled Solar section. Each model number will be displayed.
•
Click >
Service Settings
>
Reset Counters
button.
•
Wait 2 minutes then read and record Link #1 (see relevant Managed AC Coupled
Installation note for acceptable error rate).
•
Repeat for L2 and L3 in a three-phase or split-phase system.
L1
L2
L3
For Selectronic Certified Solar inverter #2:
•
Repeat above for #2 then read and record Link #2 (see relevant Managed AC Coupled
Installation note for acceptable error rate).
L1
L2
L3
For Selectronic Certified Solar inverter #3:
•
Repeat above for #3 then read and record Link #3 (see relevant Managed AC Coupled
Installation note for acceptable error rate).
L1
L2
L3
For Selectronic Certified Solar inverter #4:
•
Repeat above for #4 then read and record Link #4 (see relevant Managed AC Coupled
Installation note for acceptable error rate).
L1
L2
L3
For Selectronic Certified Solar Inverter #5:
•
Repeat above for #5 then read and record Link #5 (see relevant Managed AC Coupled
Installation note for acceptable error rate).
L1
L2
L3
To check the fallback function:
•
Turn on the PV supplies and the AC supplies to the solar inverters. Unplug the RS485
lead (RJ45) in the SP PRO.
•
Check that each of the connected solar inverter’s output drops to zero within 60
seconds.
•
Repeat for L2 and L3 in a three-phase or split-phase system.
L1
L2
L3
Commissioning