LDD960-UU
4
ADDITIONAL FUNCTIONS
Battery health monitor
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Internal resistance measurement:
The resistance is periodically measured. The internal resistance is a good indicator of the battery health status;
a sudden increase of the internal resistance indicates a potential problem on the battery or on the battery wiring.
•
Temperature measurement:
The battery temperature is monitored through an optional temperature sensor (P/N: WNTC-2MT). The battery charger
takes into account the battery temperature and provides a temperature compensated charging voltage. In case of over or under temperature the
system disconnects the battery to prevent damage.
•
Coulomb counter: Estimates the remaining battery capacity and consequently the available backup time.
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Deep discharge protection:
It protects against the deep discharge of the battery which can lead to its irreversible damage.
Cold Start:
The cold start is a procedure that allows turning ON the UPS without the input power. This procedure is used to turn ON the UPS to operate during a power
interruption. This practice is also a method to see if the battery connected to the LDD960-UU is functional. In cold start the LDD960-UU will remain ON for at
least 60 seconds independently from the battery voltage being under the deep discharge threshold, the inhibit input and the backup timer. After the first 60
seconds the device stays ON until the battery is not deep discharged, the backup timer is not expired or the inhibit input is not active. If the input supply
returns during cold start the device reverts to normal operation.
To cold start the LDD960-UU:
•
Press and hold simultaneously the
buttons until you see the welcome message on the screen. On the status screen the "Cold start” text is
written beside the input icon.
•
Release the buttons.
PC shutdown and automatic restart:
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PC shutdown:
In case the LDD960-UU is used to supply a PC it is possible to automatically shut down the PC after an adjustable time of backup.
For this the PC must run the POWERMASTER application (provided free) and must be connected through Modbus. Optionally POWERMASTER can
call a task on the PC before shutting down, for example to backup some sensitive data.
•
Automatic restart:
LDD960-UU is able to automatically restart a PC which was powered OFF by mistake, for example in case of the Operating
System (OS) crash. The user may adjust an output current threshold and a timer used for detecting the PC OFF status. In order to restart the PC the
LDD960-UU toggles the output OFF and then ON again. User must enable in the PC BIOS the automatic start in case of supply ON.
Power ON screen:
This screen is shown at power ON. It shows the device name, serial number
and firmware version.
Status:
This is the default view where the user can find the most relevant information
about the device status. The system always falls back to this view after 60s
of inactivity (no key pressed).
Settings:
All the device settings are configurable from this menu. Use the UP/DOWN
KEY to navigate through the parameters. Press the OK KEY to enter/exit the
editing mode. In editing mode use the UP/DOWN KEY to change the
highlighted value.
Info:
Device information such as firmware version, serial number and device name
is visible from this menu.
Logs:
All the alarms and event are logged in a circular buffer and visible from this
screen. Use the UP/DOWN KEY to navigate through the logs.
Wizard:
The wizard helps the user to configure the system through a series of
screens.
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