User manual

Static Transfer Switch

UNB

User Manual

Page 20 (28)

4.3.3 LCD panel / Indication of measuring values & alarm messages

In the initial state the display shows the measuring values of the input sources (AC output voltage of inverter,

mains voltage, output current, date and time, additional frequencies of inverter and mains and battery voltage as

well as the total DC-current).

(The example above shows six registered inverters)

Display [1] shows the initial state (basic display). The plain text of the basic display becomes visible after a suc-

cessful start-up procedure. According to the diagram above you can select the displays [1], [2] and [3] by pushing

the keys  or :

 If no inverter is registered, display [3] is not available.

 If exactly one inverter is registered, display [3] is visible without inverter number.

 If more than one inverter is registered, it is possible to call the parameters (input current, output current

and status) of all connected inverters in succession by pressing “ENTER”. The inverter number is shown in

the first line of the display.

The display will automatically revert to display [1] if no key is pressed for a period of more than 30 seconds.

Display [4] “Alarm messages” indicates the current alarm status. It can be selected from display [1] or [2] by press-

ing “ESC”.

With pressing the keys  or  you can leaf through the list of alarm messages if more than three entries are pre-

sent there. The display “Alarm messages” can be quit by pressing “ESC” again.

Basically (factory setting) all individual failures according to “list of the selectable individual collective failures“

(please see section 4.4.1) are switched “active” and therefore they are visible on the display in case of failure. The

alarm messages which shall not be visible on the display in case of failure are to be switched “inactive” in the cus-

tomer menu (please see the diagram “Customer menu”).