LDD960-UU
2
CONNECTIONS AND USER INTERFACE
1.
Alarm LED indicator:
ON when the unit is in backup. Blinks at 1 Hz rate in case of error.
2.
Modbus RTU over USB:
Used to connect a PC running POWERMASTER or custom application for remote monitoring
and controlling. Firmware update is also possible through USB connection.
3.
Temperature sensor:
Optional temperature sensor (P/N: WNTC-2MT) to measure the battery temperature for
protection and temperature compensated charge method.
4.
Relays dry contacts:
2 relays are present for remote monitoring.
5.
Modbus RTU over RS485:
Used to connect a PC running for remote monitoring and controlling. Firmware update is
also possible through RS485 connection.
6.
Inhibit input: A voltage between 5 VDC and 30 VDC applied to this input activates the inhibit function.
7.
Auxiliary output supply:
Maximum 5A supply from the battery (unregulated).
8.
Input connection:
2 poles are provided for input connection. This must be connected to a power supply rated 12
–
48
VDC.
9.
Output connection:
2 poles are provided for output connection. It must be connected to the load to be backed up.
10.
Battery connection:
2 poles are provided for battery connection. This must be connected to the battery. Please
respect the correct polarity.
11.
Display area:
provides information regarding the device status.
12.
Control keys:
4 push buttons are provided to navigate through the menus and to select the various functions.
USER INTERFACE
SYMBOL
NAME
FUNCTION
MENU KEY
Scrolls between menus.
DOWN KEY
Scrolls down menus and values.
UP KEY
Scrolls up menus and values.
OK KEY
Confirms selection.
INPUT
The measured input voltage and current is shown in this section.
OUTPUT
The measured output voltage and current is shown in this section.
BATTERY
The battery voltage, current, temperature, resistance and charge are shown in this section. During charging and
discharging the symbol background color changes to orange and the number of bars drawn inside reflects the charge
status. During discharging and charging an arrow drawn beside the symbol reflects the direction of the current flowing
through the battery, pointing towards the battery during charging. Battery section is not present in DC-DC mode.
AUXILIARY
The measured auxiliary output voltage and current is shown in this section.
MODE DISPLAYED
UPS STATUS SCREEN
DC/DC STATUS SCREEN
ALARM SCREEN
