MICRO-EPSILON thicknessCONTROL RTP 8301.EO Betriebsanleitung Seite 256

U–Series
8. B
ATTERY
The required 12V VRLA battery is included with this unit. For more details on battery requirements see chapter 26.
Battery voltage
Battery voltage range
Allowed battery capacity
Battery charging method
Battery charging current
End-of-charge-voltage (CV-mode)
Battery charging time
Battery discharging current **)
Deep discharge protection ***)
*) The charging time depends on the duration and load current of the last buffer event. The numbers in the table represent a
fully discharged battery. A typical figure for a buffer current of 10A is 2h 20Min. for a 5Ah highcurrent battery. Above 40°C
charging time can be longer.
**) The current between the battery and the DC-UPS is more than twice the output current. This is caused by boosting the 12V
battery voltage to a 24V level.
***) To ensure longest battery lifetime, the DC-UPS has a battery deep discharge protection feature included. The DC-UPS stops
buffering when the voltage on the battery terminals of the DC-UPS falls below a certain value.
Fig. 8-1 Battery discharging current
vs. output current, typ.
Battery Current
30A
25
20
15
10
5
0
0 2.5 5
May. 2008 / Rev. 1.1 DS-UBC10.241-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.
nom. DC 12V
9.0 – 15.0V
max. 35Vdc
typ. 7.4V
nom. 5Ah
CC-CV
nom. 1.5A
max. 1.7A
typ. 13.1 - 14V
typ. 3h *)
typ. 21A
typ. 0.3A
max. 50μA
typ. 270mA
typ. 10.5V
typ. 9.0V
A B C
Voltage on
battery terminal
of the DC-UPS:
A: 10.5V
B: 11V
C: 12V
7.5 10 12.5 15A
www.pulspower.com Phone +49 89 9278 0
UBC10.241, UBC10.241-N1
Maintenance-free 12V VRLA lead acid battery.
Continuously allowed, except deep discharge
protection
Absolute maximum voltage with no damage to the
unit.
Above this voltage level battery charging is possible
High-current version
Constant current, constant voltage mode
CC-mode, Independent from battery size
Corresponding 24V input current see Fig. 8-2
Automatic setting according to ambient temperature
Buffer mode, 10A output current, 11.5V on the battery
terminal of the DC-UPS, see Fig. 8-1 for other
parameters
Buffer mode, 0A output current
At no input, buffering had switched off, all LEDs are
off
At no input, buffering had switched off, yellow LED
shows "buffer time expired" (max. 15 minutes)
At 0A output current
At 10A output current
Fig. 8-2 Required input current vs. input
voltage for battery charging
Input Current
1.5A
1.25
1.0
0.75
0.5
0.25
0
23 24 25
Germany
24V, 10A, DC-UPS
26 27 28V
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