Power Optimizer Troubleshooting - SolarEdge SEK-I Series Installation Manual

76 Power Optimizer Troubleshooting

Power Optimizer Troubleshooting

Malfunction
Pairing failed
String voltage is 0V
String voltage not 0V but lower than
number of Power Optimizers
Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx
Possible Cause and Corrective Action
Power Optimizers are shaded.
If you connected the inverter to the monitoring
platform, retry pairing remotely (during
sunlight). Make sure to leave the inverter
ON/OFF/P switch ON and that S_OK appears in
the status screen.
Power Optimizer (s) output is disconnected.
Connect all Power Optimizer outputs.
Power Optimizer(s) not connected in the string.
Connect all Power Optimizers.
Panel(s) not connected properly to Power
Optimizer inputs (not applicable to smart
modules).
Connect the modules to the Power Optimizer
inputs.
String reverse polarity.
Check string polarity using a voltmeter and
correct if needed.