AGS for M series Solar Inverters

New AGS for M Series Solar Inverters

We’ve updated our AGS feature in Sep 2021, pls refer to this post for details.

 

The M 3KW 6KW 12KW solar inverter is built with a very versatile 3-pin dry contact rated at 3A/250VAC on the rear panel.

The internal relays of the dry contact will give out either “close” or “open” signals.

These signals can be used to indicate the low battery voltage alarm or control a generator.

The NC & C pins are constantly close, they will open when battery voltage reaches low alarm or the setting in Program 12 (DC to AC Transfer).

The NO & C pins are constantly open, they will close when battery voltage reaches low alarm or the setting in Program 12 (DC to AC Transfer) to start the generator. Once the generator is started and battery voltage increases with charging, the dry contact pins will open at the setting of Program 13 (AC to DC Transfer) to avoid overcharging.

 

Unit Status Operation NC & C NO & C
Power Off Inverter off ( no AC output) Close Open
Power On Inverter in AC Bypass Mode Close Open
Inverter in DC to AC Mode Program 01 set to Utility Priority Battery Level < Low Battery Alarm Open Close
Battery Level > Program 13 (AC to DC Transfer) Close Open
Program 01 set to SBU or Solar Priority Battery Level < Program 12 (DC to AC Transfer) Open Close
Battery Level > Program 13 (AC to DC Transfer) Close Open

 

For low battery alarm, when battery setting is not in “LI” mode, it is 2 volts higher than Low DC Cut-off Voltage for 48Vdc model and 1 volt higher than Low DC Cut-off Voltage for 24Vdc model.

When the battery setting is in “LI” mode, low battery alarm is 5% higher than Low DC Cut-off Soc.

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