Series Operation
Series System Startup Test
To test the system’s inverting and charging functions
1.Apply DC to both PROsines by closing the battery disconnect(s). Remove AC by opening the AC input source breaker. On both PROsines, set the ON/OFF/ REM switch to On.
2.Set the INVERTER switch on one display to ENABLE.
The INVERTER STANDBY LED on that display should light.
3.Enable the inverter on the second display.
The INVERTING LED on both displays should light.
4.Place a 120V load on the master inverter (e.g. plug a light into an outlet that it is powering) and make sure it works. Place a second 120V load on the output of the slave inverter and verify that both loads work. Place a 240V load on the 240V circuit formed by the two series inverters and verify that it works correctly.
5.To test Charge mode, apply AC to both PROsines by closing the AC input source breaker.
After a few seconds both units should transfer: the INVERTING LEDs will go dark and the AC IN LEDs will light. Enable the charger on both displays: the CHARGING LED on both displays should light and battery current should be registered. Any AC loads powered by the inverter will also work from shorepower at this time.
6.Check a transfer by opening the AC source breaker. The PROsines should transfer to Invert mode immediately: the transfer relays will make a clicking sound and the INVERTING LED on both displays will come on. Loads will continue to operate uninterrupted.
If any part of this procedure fails, determine the cause before using the PROsines. Consult Chapter 6, “Troubleshooting” as necessary.
