INSTALLATION | Commissioning
Doc #OI0003 Part #004122 Rev19 2014
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51
Checking Managed AC coupled systems
For systems incorporating Managed AC Coupling the following items should be verified.
Please note that “Common System Checks” on page 49 should be completed first.
Refer to document “IN0018_xx SP PRO KACO Managed AC Coupling Installation
Notes” and ensure the system has been installed and commissioned according to this
document before completing the following check list.
•
Turn on the DC supply to the SP PRO(s). Long press the ON button so that only the
blue AC Load LED is lit.
•
Connect SP LINK to the SP PRO inverter(s).
•
Connect the AC supply to the KACO inverters. DO NOT connect the DC supply at this
stage.
Item to check
Result
For KACO #1:
• Wake up the KACO #1 inverter by pressing the night switch on the
base for 10 seconds. The display should light up.
• In the Service Settings tab click the “Reset Counters” button.
• Wait 2 minutes then read and record Link #1 (should be <3)
Repeat for L2 and L3 in a three phase of split phase system.
L1
L2
L3
For KACO #2:
• Repeat above for KACO #2 then read and record Link #2 (should be
<3)
L1
L2
L3
For KACO #3:
• Repeat above for KACO #3 then read and record Link #3 (should be
<3)
L1
L2
L3
For KACO #4:
• Repeat above for KACO #4 then read and record Link #4 (should be
<3)
L1
L2
L3
For KACO #5:
• Repeat above for KACO #5 then read and record Link #5 (should be
<3)
L1
L2
L3
Where Fallback mode is configured turn on the KACO PV supplies.
Unplug the RS485 lead (RJ45) in the SP PRO.
Check that each of the connected KACO inverter’s output drops to
zero after 5 seconds.
Repeat for L2 and L3 in a three phase of split phase system.
L1
L2
L3
