Power Optimizer Troubleshooting - SolarEdge EV Series Installation Manual

74 Power Optimizer Troubleshooting

Power Optimizer Troubleshooting

Problem
Pairing failed
String voltage is 0V
String voltage not 0V but lower than
number of optimizers
Possible Cause and Troubleshooting
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.
Module(s) not connected properly to power
optimizer inputs (not applicable to smart
modules).
Connect the modules to the optimizer inputs.
String reverse polarity.
Check string polarity using a voltmeter and
correct if needed.
EV Charging Single Phase Inverter Guide MAN-01-00588-1.1