Puls UB10.241 Data Sheet
UB10.241
– U Series
1. GENERAL DESCRIPTION
Power failures or voltage fluctuations can cause
damage and downtime, which usually costs a lot of
time and money. The UB10.241 together with a
battery module offers a reliable and economical
protection for 24V applications.
The output is isolated from the input, which allows
an easy separation of buffered and non-buffered
branches. The energy of the battery will not be
wasted by uncritical consumers.
In times when the power supply provides sufficient
voltage, the DC-UPS charges the 12V battery. In
case the input power fails, the battery voltage will
be boosted to a 24V level and the energy will be
released in a regulated process to the load.
The included battery management incorporates a
battery charger, a deep-discharge protection and
an overload protection to achieve a long service life
of the battery.
The availiability of the DC-UPS is reported by lamps
and relay contacts. The DC-UPS automatically
checks the installation, the battery fuse and the
quality and presence of the battery. Diagnosis is
very easy, thanks to clear understandable indicators
and relay contacts for remote signaling.
Extensive protection features protect the unit
against wrong battery polarity, wrong battery
voltage, wrong input oltage or output overloads.
24V, 10A
DC-UPS
■ Requires only one 12V battery
■ Regulated output voltage in buffer mode
■ Compact, width only 49mm
■ 50% power reserves
■ Low voltage drop between input and output
■ Electronically protected against output overloads
■ Extensive battery management including battery
quality and installation tests
■ Soft charger for optimum battery life
■ Extensive diagnostic and monitoring functions
■ Selectable buffer time limiter
■ 3 Year warranty
2. SHORT-FORM DATA
Operating voltage DC 24V
Voltage range 22.5-30Vdc
Output voltage
Voltage drop IN/OUT < 0.3V at 10A Normal mode
Output current 0 to 15A Normal mode
0 to 10A, cont. Buffer mode
0 to 15A, for 5s Buffer mode
Input current
Charging current typ. 1.5A into 12V battery
Charging time typ. 5h 12V, 7Ah battery
Cut-in threshold typ. 22.5V
Power losses 2.7W Standby mode
4.6W 10A, Normal mode
Buffer time min. 6’ 15’’ at 10A, 7Ah battery
typ. 8’ 30’’
typ. 32’ at 4A, 7Ah battery
Allowed batteries >3.9Ah, VRLA batteries
< 27Ah
Temperature range -25°C…+60°C operational
Derating 0.25A/°C +60 to +70°C
Dimensions 49x124x117mm
Weight 530g
*)
add output current to calculate the total input current
±2%
22.4V
typ. 0.12A *)
max. 1.1A *)
Buffer mode
Standby mode
Charging mode
at 10A, 7Ah battery
WxHxD
3. ORDER NUMBERS
DC-UPS
Accessory UZK12.07 12V, 7Ah Battery module
ZM1.WALL Wall mounting bracket
March 2006 / Rev. 0.2 / DS-UB10.241-EN / All parameters are specified at 24V, 10A and 25°C ambient unless otherwise noted.
UB10.241
24V, 10A
www.pulspower.com Phone +49 89 9278 0 Germany
4. MARKINGS
pending
pending
EMC, LVD
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UB10.241
– U Series
24V, 10A
INDEX PAGE INDEX PAGE
1. General Description .................................... 1
2. Short-form Data .......................................... 1
3. Order Numbers............................................ 1
4. Markings ...................................................... 1
5. Functional Diagram..................................... 3
6. Wiring Instructions......................................3
7. Required Settings before Use..................... 4
8. Buffer Time.................................................. 4
9. Front Side and User Elements..................... 5
10. Battery Quality Test .................................... 6
11. Check Wiring Test ....................................... 6
12. Relay Contacts and Inhibit Input ............... 6
13. Terminals and Wiring ................................. 7
14. Reliability..................................................... 8
15. EMC.............................................................. 8
16. Environment................................................ 9
17. Protection Features..................................... 9
18. Safety ......................................................... 10
19. Approvals................................................... 10
20. Fulfilled Standards .................................... 10
21. Physical Dimensions and Weight ............. 11
22. Installation Notes...................................... 11
TERMINOLOGY AND ABREVIATIONS
Normal Mode Describes a condition where the battery is fully charged, the input voltage is in range and the
output is loaded within the allowed limits.
Buffer Mode Describes a condition where the input voltage is below the cut-in threshold, the unit is buffering
and the output is loaded within the allowed limits.
Charging Mode Describes a condition where the battery is charging, the input voltage is in range and the output
is loaded within the allowed limits.
DISCLAIMER
The information presented in this document is believed to be accurate and reliable and may change without notice.
March 2006 / Rev. 0.2 / DS-UB10.241-EN / All parameters are specified at 24V, 10A and 25°C ambient unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
2/11
UB10.241
– U Series
24V, 10A
5. FUNCTIONAL DIAGRAM
Fig. 5-1 Functional diagram
DC- UPS
+
Buffered
-
(7)
Inhibit +
(8)
Inhibit -
Status LED
Diagnosis LED
Check Wiring LED
Buffer Time Limiter
10s, 30s, 1m, 3m, 10m,
End-of-Charge Voltage
(1)
Ready Contact
(2)
(3)
Buffering Contact
(4)
(5)
Replace Battery
(6)
Load
(green)
(yellow)
12V Battery
24V
Power
Supply
+
+
Input /
Input Output
-
Battery
Charger
Output
Isolator
Boost
Converter
Electronic
Current
Limiter
Controller
+
Battery
-
-
Safety
Relay
Battery
Tester
(red)
6. WIRING INSTRUCTIONS
Fig. 6-1 Wiring diagram
-
+
-
Un-
critical
Load
+-+
Output
Power
Supply
Input
NL
-
PE
+
-
12V
Battery
+-+
-
+
IN
OUT
BAT
24V
24V
12V
UB10.241
DC-UPS
Signal Port
-
a) Connect the power supply to the „Input“ terminals of the DC-UPS
b) Connect either a 12V VRLA battery with a capacity between 3.9 and 27Ah or our battery module
UZK12.07 to the “Battery” terminals of the DC-UPS. Use wires not smaller than 2.5mm
and not longer than 1.5m (single length). Use a 30A fuse Typ ATO® 257 030 (Littelfuse) or the like.
The battery fuse protects the wires between the battery module and the DC-UPS. Furthermore, it
allows the disconnection of the battery from the DC-UPS, which is recommended, when working on
the battery or DC-UPS.
c) Connect the buffered load to the “Output” terminals of the DC-UPS. Uncritical loads can be
connected directly to the power supply.
+
Buffered
Load
2
(or 12 AWG)
March 2006 / Rev. 0.2 / DS-UB10.241-EN / All parameters are specified at 24V, 10A and 25°C ambient unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
3/11
UB10.241
– U Series
24V, 10A
7. REQUIRED SETTINGS BEFORE USE
Setting the buffering timer:
The unit is equipped with a buffering timer, which limits the max. buffer time to save battery capacity. The rotary
switch on the front allows the setting of a timer to the following 6 steps:
- Indefinite timer deactivated, buffering until the deep discharge protection stops the buffer mode.
- 10 Seconds
- 30 Seconds
- 1 Minute
- 3 Minutes
- 10 Minutes
If the DC voltage recovers within this period of time, the buffering stops immediately.
Setting the end-of-charge voltage:
The end-of-charge voltage depends on the battery temperature and has a major influence on the life of the battery.
The potentiometer on the front of the unit allows an adjustment of the expected battery temperature:
10°C end-of-charge voltage 13,92V ±0,1V
20°C end-of-charge voltage 13,74V ±0,1V
30°C end-of-charge voltage 13,56V ±0,1V
40°C end-of-charge voltage 13,38V ±0,1V
8. BUFFER TIME
Fig. 8-1 Hold-up time vs. output current with the battery module UZK12.07 (12V, 7,5Ah)
12A
10A
8A
6A
4A
2A
0A
0min 5min 10min 15min 20min 25min 30min
(1) typ.
(2) min.
March 2006 / Rev. 0.2 / DS-UB10.241-EN / All parameters are specified at 24V, 10A and 25°C ambient unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
4/11
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