44
Selectronic Australia
Rev 41 - Dec 2022
Operation
12 – Generator Button*
A short press
Start or stop the auto start generator.
13 – Generator Status*
Off
No generator activity.
Flashing Green
Generator is in the process of starting.
Steady Green
Generator has started and is running.
Flashing Yellow
Generator is not available for auto start.
Flashing Red
There is a generator fault.
*Button 12 and LED 13 are not active when a backup generator is not installed.
AC Coupled Low DC Recovery
This feature is only available in systems that have AC Coupled solar installed. It uses the AC Coupled solar to
recover from a low DC voltage or low SoC shutdown.
This feature is used when the AC Source (generator or grid supply) is not available, possibly due to a failed
generator or long-term grid outage.
To use the AC Coupled Low DC Recovery
feature follow these simple steps:
1. Wait until the sun is up and there is enough sunlight to charge the batteries.
2. Turn off all the site loads connected to the SP PRO. If this is not done, then the AC Coupled Low DC
Recovery
mode will exit within 5 seconds.
3. Long press ON button twice. The SP PRO will go into AC Coupled Low DC Recovery
mode and come on to
power-up the AC Coupled solar inverters. The battery LEDs on the front of the SP PRO will flash red when in
this mode. If the AC Coupled solar does not start charging the batteries within 10 minutes then the SP PRO will
exit this mode.
4. Wait until low DC shutdown recovers. When the battery LEDs stop flashing red and the SP PRO remains on
then the system has recovered.
5. Turn on your site loads. The battery has now recovered enough to run the site loads. Minimise power usage
to avoid another shutdown.
Controls and Indicators