UF40.241
UF-Series
24V,
40A,
160
MS
,
B
UFFER
M
ODULE
4.
E
LECTRICAL
R
ATINGS
Supply voltage
Nom.
DC 24V
-20%/+25%
Supply voltage range
1)
Nom.
19.2 - 30Vdc
Normal operating voltage range
2)
Typ.
23 – 30Vdc
Transfer voltage for switching
into buffer mode
Typ.
Typ.
22.5Vdc
V
IN
– 1V
Back-up threshold jumper set to “22.5V fixed”
Back-up threshold jumper set to “V
IN
– 1V”
See also chapter 5.
Transfer voltage for switching
from buffer mode into power
supply mode
Typ.
Typ.
22.5Vdc
V
BUFFER
+ 1V
Back-up threshold jumper set to “22.5V fixed”
Back-up threshold jumper set to “V
IN
– 1V”
See also chapter 5.
Buffer voltage
Typ.
Same as the transfer voltage for switching into buffer mode.
Ripple and noise voltage
- in buffer mode
Max.
200mVpp
Generated by the buffer module.
Defined at 20Hz to 20MHz, 50Ohm
- in power supply mode
The ripple and noise voltage is defined by the power supply.
Current consumption
Typ.
Min.
Max.
80mA
400mA
600mA
When capacitor is fully charged
During charging of the capacitors
During charging of the capacitors
Power dissipation
Typ.
1.9W
When capacitor is fully charged
Buffer current
Min.
40A
Buffer current overload behavior
Electronically limited, buffering stops and capacitor gets discharged
below 17V. See Fig. 4-2.
Allowed voltage between supply
voltage and chassis ground
Max. 60Vdc
or
42.4Vac
Continuous, IEC 62477-1
Capacitive and inductive loads
No
limitation
1) Supply Voltage Range:
At voltages within the input voltage range, control functions such as LEDs, monitoring features, relay contacts, etc. are functioning
normally. Within the input voltage range the unit can either be in power supply mode or in buffer mode.
2) Normal Operating Voltage Range:
The normal operating voltage range describes the supply voltage, which supports the full functionality of the buffer module (including
charging) but without entering the buffer mode.
Fig. 4-1
Selection of an appropriate power supply
Fig. 4-2
Output characteristic in buffer mode,
22.5V fixed mode, typ.
Buffer Voltage
0
0
40
4
8
12
28V
16
20
64A
24
8
16
32
48
56
Output Current
24
22.5V
Buffering stops
below 17V
Internal
current
consumption
Current
consumption
for charging
Load
Current
Power
Supply
Current
Oct. 2016 / Rev. 1.0 DS-UF40.241-EN
All parameters are specified at 24V, 40A, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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