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For M Series 8-12KW models, there are two DC fans and one AC fan.
The DC & AC fans will work together, they are designed to operate according to the following logic:
LOAD PERCENTAGE
(INV MODE)
Allow at least 80CM of clearance around the inverter for air flow. Make sure that the air can circulate freely
around the unit.
The max fan noise level is 72db at a distance of 1m.
2.4.10 Automatic Generator Start
The M 6KW 12KW solar inverters are 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.
Inverter off ( no AC output)
Inverter in AC Bypass Mode
Inverter in DC to
AC Mode
Program 01 set
to Utility
Priority
Battery Level < Low Battery
Alarm
Battery Level > Program 13
(AC to DC Transfer)
Program 01 set
to SBU or
Solar Priority
Battery Level < Program 12
(DC to AC Transfer)
Battery Level > Program 13
(AC to DC Transfer)
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.
Note: This diagram only works for certain types of generators. For your specific generator wiring, pls
contact the generator supplier or us for wiring.
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