STUDER Innotec SA
AJ
M
-
ODEL WITH STAND
BY SYSTEM
The inverters from the AJ 500-12 are equipped
with a stand-by system (also available in the
models
AJ 275-12/350-24/400-48 with the
option -S).
The stand-by is an energy saving system which
turns off the inverter intermittently when no
consumer is detected. In this mode the
functioning indicator (green LED 1) blinks,
showing the intermittent presence of the
voltage.
The detection threshold is set by default at 2 W.
On models from AJ 500-12 onwards it is possible
to deactivate this function or to modify the
threshold by adjusting the yellow Turning Knob
marked Stand-by.
Adjusting the switching-on level is as follows:
Switch off all consuming devices; turn the
Turning Knob to the right (clockwise) until the
LED
is
blinking,
switch
ON
the
smallest
consuming device (i.e. mobile phone charger);
turn the Turning Knob slowly to the left until LED
is lit continuously. Check that the inverter goes
back in stand-by mode when you remove the
load. If not, this means that the load is too small
to be detected.
If the stand-by is not required, turn the Knob fully
to the right.
The minimal load detected can be adjusted
between 1 and 20 W. In most cases this
adjustment is not necessary. This adjustment is
made with a small screw driver in the hole
marked stand-by. In the full counter clockwise
position, the sensibility is minimal (20 W). Do not
push on the screw driver.
NOTE: In this mode the output voltage is
intermittently present at the output!
V3.01
7