SolarEdge RESU10H Prime Series Installation Manual page 29

28 Step 4: Verifying Proper Power Optimizer Connection
To verify proper Power Optimizer connection:
Measure the voltage of each PV string individually before connecting it to the other
PV strings or to the inverter. Verify correct polarity by measuring the PV string
polarity with a voltmeter. Use a voltmeter with at least 0.1V measurement accuracy.
NOTE
Since the inverter is not yet operating, you may measure the PV string
Voltage and verify correct polarity on the DC wires inside the Connection
Unit.
For troubleshooting Power Optimizer operation problems, refer to Power Optimizer
Troubleshooting on page 70.
Proper Power Optimizer connection can also be verified in the Designer application.
For more information, refer to
https://www.solaredge.com/products/installer-tools/designer#/.
Single Phase Energy Hub Inverter with Prism Technology MAN-01-00842-1.3