Enerdrive ePRO COMBI Owners Manual
Page 12
4. GENERAL OPERATION
4.1 OPERATING THE ePRO COMBI
The main switch on the ePRO Combi has three positions : On, Off 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 Off, 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 front panel and the different error mode codes, can be found in
the next chapter.
4.2 ePRO COMBI LED INDICATORS AND ERROR MODES
Please see the next image for an overview of all LED indicators on the ePRO Combi front panel, as well as the
location of the main switch.
The front panel can be divided into four sections :
