Use, Model with stand-by system | Studer Innotec AJ SERIES manual

STUDER INNOTEC

losses and cause malfunction of the inverter.

Once the inverter is connected to the batteries, a 230 V voltage is present in the outlet of the inverter.

Use

Control and indicators

Control switch on/off

There is a switch on the inverter to activate or deactivate it. Use this function to save the energy of the batteries when you are not using the inverter.

Green indicator

A green light on the inverter indicates its function mode:

Illuminated: a 230 V voltage is present in the outlet, the inverter is on.

Blinking:

_ _ _ : No load (stand-by)

__ __ __ : the 230 V voltage has been cut due to an alarm; the inverter will resume function when the failure has disappeared (see the failure table).

Off: the 230 V voltage is NOT present in the outlet, the inverter is off.

Acoustic indicator

The AJ inverter has an acoustic indicator for the following instances:

Intermittent beep: there is a failure in the inverter and the outlet voltage will be interrupted.

Possible failures:

Overheat: the acoustic indicator beeps 3 ºC before cutting the tension. If the temperature reaches its normal level, the voltage in the outlet is not interrupted.

Low battery voltage: the indicator beeps for a minute before the interruption. If the voltage of the battery rises, the outlet voltage is not interrupted.

Continuous beep for two seconds: you have pressed the ON/OFF switch to restart the inverter. The tension in the outlet will be immediately present after the acoustic signal.

Model with stand-by system

The inverters from the AJ 500-12 are equipped with a stand-by system which is in function when no load is connected. In that situation the inverter is in low power consumption mode.

The output tension is not continuously present and the LED is blinking as long as no load is detected.

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. This adjustment is made with a small screw driver in the hole marked stand-by. Adjusting the switching-on level is as follows: Switch off all consuming devices; turn the Turning Knob to the Left (counter- clockwise)until the LED is blinking, switch ON the smallest consuming device (i.e. Mobile phone charger); turn the Turning Knob slowly to the right until LED is lit continuously. Check that the inverter will go 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.

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

AJ V2.1

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