INSTALLATION | Commissioning
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Doc #OI0003 Part #004122 Rev19 2014
External AC Source Contactor
For single phase and multi-phase systems incorporating an external AC source Contactor, the following
should be verified. Please note that these items are in addition any other items that are relevant to the
system configuration.
Please ensure the External AC contactor has been installed and commissioned according to the document
“TN0057_xx SP PRO External AC Source Contactor Option” before completing the following check list.
•
Turn on the DC supply to the SP PRO(s). Leave the inverter(s) in IDLE
•
Connect SP LINK to the SP PRO inverter(s).
• Turn off all charging sources such as any connected AC or DC coupled solar power..
•
Turn off the AC source circuit breaker so that there is no AC source connected to the External Contactor.
Item to check
Result
Check that the External AC Source contactor is NOT energised.
Check the AC Source Voltage in the Data View - Now tab is zero.
Turn ON the AC source circuit breaker. Check the following:
• AC Source Voltage reads the source voltage in the Data View - Now tab
• The External contactor has turned ON
• The AC Load Voltage reads the source voltage in the Data View - Now tab
On the front Panel of the SP PRO(s) check:
• Both the blue AC Source and AC Load LEDs are lit.
• The blue Transfer LED is NOT lit.
Turn OFF the AC source circuit breaker.
Turn ON the SP PRO(s) with a long press of the ON button.
Check the following:
• AC Source Voltage is still zero in the Data View - Now tab
• The External contactor is still off
• The AC Load Voltage reads 240V in the Data View - Now tab
Turn on the AC Source circuit breaker and check the following BEFORE the
SP PRO(s) synchronises to the AC Source.
• AC Source Voltage reads the source voltage in the Data View - Now tab
• The External contactor is still off
• The AC Load Voltage reads 240V in the Data View - Now tab
Check the following AFTER the SP PRO(s) synchronises to the AC Source.
• AC Source Voltage reads the source voltage in the Data View - Now tab
• The External contactor has turned ON
• The AC Load Voltage reads the source voltage in the Data View - Now tab
Put a load on the system and check the AC source current on each phase
with an AC clamp meter. Check the following for each SP PRO:
• AC Source Current in the Data View - Now tab equals the Clamp meter.
• AC Source Power in the Data View - Now tab is a +ve reading.