User manual

UB10.241
U–Series
24V, 10A, DC-UPS
Apr. 2007 / Rev. 1.1 DS-UB10.241-EN
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
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14. FRONT SIDE USER ELEMENTS
A
Power Port
Quick-connect spring-clamp terminals, connection for input voltage,
output voltage and battery
B
Signal Port
Plug connector with screw terminals, inserted from the bottom.
Connections for the Ready, Buffering, Replace Battery relay contacts and
for the Inhibit input. See details in chapter 13.
C
Green Status LED
Ready: Battery is charged > 85%, no wiring failure is recognized, input
voltage is sufficient and inhibit signal is not active.
Charging: Battery is charging and the battery capacity is below 85%.
Buffering: Unit is in buffer mode.
Flashing pattern of the green status LED:
Ready
Charging
Buffering
ON
OFF
ON
OFF
ON
OFF
D Yellow Diagnosis LED
Overload: Output has switched off due to long overload in buffer mode
or due to high temperatures.
Replace battery: Indicates a battery which failed the battery quality test
(SoH test). Battery should be replaced soon.
Buffer-time expired: Output has switched off due to settings of Buffer-
timer Limiter. This signal will be displayed for 15 minutes.
Inhibit active: Indicates that buffering is disabled due to an active inhibit
signal.
Flashing pattern of the yellow diagnosis LED:
Overload
Replace
Battery
Buffer time
expired
Inhibit
active
ON
OFF
ON
OFF
ON
OFF
ON
OFF
E
Red Check Wiring LED
This LED indicates a failure in the installation (e.g. too low input voltage), wiring, battery or battery fuse.
F Buffer-time Limiter:
User accessible dial which limits the maximum buffer time in a buffer event to save battery energy. When the
battery begins to recharge after a discharging event, the process is completed much faster since only the energy
which was taken out of the battery needs to be “refilled”. The following times can be selected: 10 seconds, 30
seconds, 1 minute, 3 minutes, 10 minutes or infinity (until battery is flat) which allows buffering until the deep
discharge protection stops buffering.
G
End-of-charge-voltage Selector:
The end-of-charge-voltage shall be set manually according to the expected temperature in which the battery is
located. The dial on the front of the unit allows an continuously adjustment between +10 and +40°C. 10°C will set
the end-of-charge-voltage to 13.9V, 25°C13.65V and 40°C13.4V. If in doubt about the expected temperature,
set the unit to 35°C.