MICRO-EPSILON thicknessCONTROL RTP 8301.EO Betriebsanleitung Seite 253

U–Series
5. I
NPUT
Input voltage
Input voltage ranges
Allowed input voltage ripple
Allowed voltage between input
and earth (ground)
Turn-on voltage
Input current **)
External capacitors on the input
*) The DC-UPS shows "Check Wiring" with the red LED and buffering is not possible
**) The total input current is the sum of the output current, the current which is required to charge the battery during the
charging process and the current which is needed to supply the DC-UPS itself. See also Fig. 5-2. This calculation does not apply
in overload situations where the DC-UPS limits the output current, therefore see Fig. 5-3.
***) Please note: This is the input current and not the current which flows into the battery during charging. The battery current can
be found in chapter 8.
Fig. 5-1 Input voltage range
V
OUT
D
0 18 22.5
A: Rated input voltage range
B: Temp. allowed, no harm to the unit
C: Absolute max. input voltage
D: Buffer mode
Electronic output current limitation
The DC-UPS is equipped with an electronic output
current limitation. This current limitation works
in a switching mode which reduces the power
losses and heat generation to a minimum. As a
result, the output voltage drops since there is not
enough current to support the load. A positive
effect of the current limitation in switching mode
is that the input current goes down despite an
increase in the output current resulting in less
stress for the supplying source.
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 24V
nom. 22.5 to 30Vdc
30 to 35Vdc
35Vdc
0 to 22.5Vdc
max. 1.5Vpp
1Vpp
max. 60Vdc or
42.4Vac
typ. 22.8Vdc
max. 23Vdc
typ. 120mA
typ. 1.1A
No limitation
A B
C
V
IN
30 35V
www.pulspower.com Phone +49 89 9278 0
UBC10.241, UBC10.241-N1
Continuous operation, see Fig. 5-1
Temporarily allowed, no damage to the DC-UPS *)
Absolute maximum input voltage with no damage to the
DC-UPS
The DC-UPS switches into buffer mode and delivers
output voltage from the battery if the input was above
the turn-on level before and all other buffer conditions
are fulfilled.
Bandwidth <400Hz
Bandwidth 400Hz to 1kHz
The output does not switch on if the input voltage does
not exceed this level.
Internal current consumption
Current consumption for battery charging in constant
current mode at 24V input See Fig. 8-2 ***)
Fig. 5-2 Input current, definitions
Input
Current
Internal
current consumption
consumption for battery
charging
Fig. 5-3 Input current and output voltage vs.
output current, typ. (battery fully charged)
Output Voltage
20V
10
20A
15
10
5
0
0 4 8
Germany
24V, 10A, DC-UPS
Output
Current
Current
Overload
12 15 20A
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