Specifications

RT9 Powershelf Rectifier Technologies

158-1806-01.doc

25 2-Mar-06

5.1 MiniCSU-3 Components

5.1.1 Alpha-numeric Display

The user interface is a two-line by 16 character alphanumeric OLED display. The 5mm

high characters normally display output voltage and current as well as the system status -

Float (FL) or Equalise (EQ). This is the default or “home” screen.

If an activity such as battery discharge testing is being performed, the current and voltage

are always displayed, while the second line alternates between the system status (FL/EQ)

and the activity status, for example “BDT in progress”.

104A 54.5V

Whenever there is no push-button activity for more than one minute, the display

always reverts to this home screen. Note: the examples shown are for 48V systems.

After a further 5 minutes the screen goes into a screen saver mode that is disabled

when either an alarm occurs or a front panel button is pushed.

5.1.2 Front Panel Pushbuttons

There are six pushbuttons associated with the OLED screen for the purpose of entering

different Menus and for scrolling through the menus. The layout of the pushbuttons is

shown below:

Apart from the base menu (system parameters), there are three other menus which can be

accessed by momentarily pressing the relevant pushbuttons:

a) SMR menu, which includes the rectifier related programmed parameters as well as

the output current and heat-sink temperature for each rectifier;

b) Battery menu in which all the parameters relating to the batteries are found;

c) Log which stores the individual alarm event information together with date and

time starting with the most recent alarm. A total of 100 alarms are stored.

5.1.3 Status Indicating LEDs (MiniCSU-3)

SYSTEM OK



Green LED

ALARM

Amber LED

SMR SHUTDOWN



Red LED

All LEDs off, indicates the unit is off due to either DC power not present, or there is an

internal failure of MiniCSU-3

The amber LED indicates any alarm condition, either system or rectifier related.

The red LED indicates that one or more of the rectifiers in the system is shut down.