Inverter User Manual
Version 1.14, June 2020
6
When an AC overload is detected, the inverter limits the time that power is
supplied to the load (the time that this power will be supplied decreases as the
overload increases). Once this time has passed, the inverter output shuts off and the
“Load Disconnection” LED lights up. In order to recover full operation of the unit it will
be necessary to reset the unit again (using the ON / OFF switch).
4.- INDICATORS AND SETTINGS
The inverter is equipped with an alphanumeric LCD screen with 2 lines and 16
columns that displays information regarding the status of the inverter and the
installation. On the front panel there are also 8 LEDs which indicate (from bottom to
top):
•
Relay
(Green): indicates that the relay is active (S
ee section 1
).
•
Power ON
(Green): It indicates that the unit is functioning properly.
•
Load Detection
(Green): it flashes when the inverter is in “Load Detection” mode,
and remains lit when it detects load. It turns off when the AC output is cut-off for
any given reason.
•
Over Temperature
(Yellow): It turns on when the internal temperature is too high.
•
Low Battery Voltage
(Yellow): It flashes when the battery voltage is low (acts as a
pre-disconnection alarm) and it remains lit (steady) when the inverter stops due to
low battery voltage.
•
High Battery Voltage
(Yellow): It turns on when the battery voltage reaches 4/3 of
the inverter rated battery input voltage and turns off when it drops to a safe
operating voltage value.
•
Overload
(Red): It flashes when a short-circuit takes place. It remains lit if it
exceeds the overload preset time.
•
Load Disconnection
(Red): It turns ON when the inverter has shut-off (AC output
disconnected) to protect the installation or the inverter itself.
The yellow or red LED that remains lit together with the “Load Disconnection” LED
indicates the cause of the disconnection. If only the “Load Disconnection” LED is lit,
then the disconnection was caused by a signal coming from the external control line or
by a continuous overload. Information regarding the cause of the disconnection can be
found on the screen.
Simultaneously and as an additional aid, when the Battery Under Voltage” LED
alarm or the “Short-circuit” LED alarms are flashing, an acoustic alarm (50 millisecond
beep per second) will sound.
Information about the unit is displayed in sequence on screen, (e.g.: input / output
voltage and current, output power, peak power, energy consumption, internal
temperature, working time...), as well as the cause of disconnection, if applicable.
The load detection circuit is factory set to detect a load of (approximately) 1% of the
nominal power. If you intend to connect a load whose power consumption is lower than
this threshold, it may be necessary to add an additional load to ensure that the inverter
comes out of standby mode (Load Detection Mode).
The keypad allows the adjustment of some parameters, as well as resetting meter
(counter) values to zero and maximum/minimum levels of the variables. It also allows