User Manual
Enerdrive ePRO Inverter / Charger Owners Manual
Page 20
4. General Operation
4.1 Operating the ePRO Combi
The main switch on the ePRO Combi has three positions : On, O๎ and
Charger only (see image in chapter 4.2).
When switched to On, the ePRO Combi will perform all tasks automatically.
It will power up in inverter mode, supplying power to the connected load.
When a grid or generator is connected to the AC input, the ePRO Combi
will analyse this signal. If the voltage and frequency of this signal are
both within the required limits, the ePRO Combi will synchronize to the
input signal and activates the AC transfer switch automatically. Now the
connected loads are being powered from the AC input source and the
ePRO Combi will also start charging the battery. As soon as the voltage
or the frequency of the AC input signal are exceeding the required limits
(for example when the AC input signal disappears), the ePRO Combi will
immediately stop charging, release the AC transfer switch and activate
the inverter again. All this happens so fast, that the connected load will
not be disturbed.
When switched to O๎, the ePRO Combi is completely shut down and
cannot be activated by a remote switch or the Universal Remote Control
either. In this mode, the ePRO Combi will draw no current from the battery.
When switched to Charger only, the ePRO Combi will disable the inverter
mode and will only work as a stand alone battery charger. As soon as a
usable AC input signal is available, the ePRO Combi will activate the AC
transfer switch and starts charging the battery. When the AC input signal
fails, the AC transfer switch will be released again and the charger stops
charging. No AC signal will be present at the ePRO Combi output when
there is no AC input signal either.
Information about the LED indicators on the frontpanel and the di๎erent
error mode codes, can be found in the next chapter.