Instructions

EN
UBC10.241, UBC10.241-N1 Installation Manual
Product Description
The UBC10.241 is an uninterruptible power supply controller (DC-UPS) with included battery, which is
used in combination with a 24V power supply to bridge power failures. When the power supply
provides sufficient voltages, the DC-UPS controller charges the battery. When the power supply
voltage fails, the energy stored in the battery is released to the DC bus in a regulated process.
The UBC10.241-N1 device is the same as the UBC10.241 but without assembled batteries.
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in
industrial control, process control, monitoring and measurement equipment or the like. Do not use this
device in equipment where malfunction may cause severe personal injury or threaten human life.
Installation Instructions
Turn power off and disconnect the battery fuse before working on the device.
Install the device in a cool area inside an enclosure providing protection against electrical, mechanical
and fire hazards. Ensure sufficient ventilation by following the requirements of the EN 50272-2.
Install the device onto a DIN-rail according to EN 60715 with the input terminals on the top of the unit.
The input can be powered from a regulated power supply or a similar DC source. The voltage between
the input and ground must not exceed 60Vdc continuously. The ripple voltage in the low frequency
range between 50Hz and 10kHz must be negligible when used in marine applications.
The input must be powered from a PELV or SELV source or an “Isolated Secondary Circuit” in order to
maintain a SELV or PELV output.
Use an appropriately sized 24V power supply, which can deliver the additional internal current
consumption, required to charge the battery.
Use only VRLA lead acid batteries with a capacity between 4.5Ah and 6Ah.
Check for correct input and battery polarity. The device will not operate when the voltage is reversed.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper
cables that are designed for a minimum operating temperature of 60°C. Ensure that all strands of a
stranded wire enter the terminal connection.
The device is designed for pollution degree 2 areas in controlled environments.
No condensation or
frost is allowed.
The device is designed as “Class of Protection III” equipment according to IEC 61140.
The enclosure of the device provides a degree of protection of IP20.
A disconnecting means shall be provided for the output of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid!
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and
right side. Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device
is permanently loaded with less than 50%, the 5mm can be reduced to zero.
The device is designed for altitudes up to 6000m (19685ft).
The maximum surrounding air temperature is +40°C (+104°F). The operational temperature is the
same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Do not install the battery fuse until the installation work is complete.
To avoid an unintended buffering event disconnect the battery fuse or use the inhibit input.
Replacement fuses must be of the same type (ATOF
®
287 030 from Littelfuse) or an UL listed fuse
with the same nominal value and characteristics.
Do not store the device at temperatures higher than 25°C or performance and lifetime may change.
Before initial use, check the last charging which is marked on the battery. If it is older than 9 month,
replace the battery.
Do not store batteries longer than 9 months without charging or performance and lifetime may change.
Every 9 months or whenever the open circuit voltage (OCV) falls below 12.6V, the battery should be
charged. Apply a charging voltage of 13.8V (at 25°C) for 72 hours. Batteries with an OCV below 12V
must not be charged anymore and must be disposed.
Frequently charging below +5°C reduces the lifetime of the battery.
Do not use batteries other than the original batteries supplied by the manufacturer to avoid conflicts
with agency approvals.
CAUTION: The unit contains wet cell batteries. Ventilation of the installation room in accordance with
the rules of Canadian Electrical Code, part 1 is required if used in Canada.
Instructions for replacement and disposal of batteries:
Batteries need to be replaced periodically. The time interval depends on the ambient temperature in
which the battery is used and on the number and depth of discharge cycles. In a typical application it
is recommended to replace the batteries at least every 2 years. Disconnect battery fuse before
replacing the batteries.
Always dispose batteries through a recycling organization. Optionally, batteries can be returned to the
supplier or the battery manufacturer. Batteries must be completely discharged before recycling.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II
Category 3 (Zone 2) environments.
Hazardous Location Classification: ATEX: EPS 15 ATEX 1 025 X, II 3G EX ec nC IIC T3 Gc
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment.
Do not disconnect the device, change unit settings or remove or insert the fuse unless power has
been switched off or the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP23
and fulfils the requirements of the EN 60079-0. Sufficient ventilation must be ensured in the final
installation.
Do not use batteries other than the original batteries supplied by the manufacturer or batteries, which
are approved according to EN/ IEC 60079-7.
Technical Data
All values are typical figures specified at 24Vdc input voltage, 10A output
current in power supply mode at 25°C ambient, no charging and after a 5
minutes run-in time unless otherwise noted.
Input voltage DC 24V -20%/+25%
Minimum input voltage to
start charging and to
enable battery mode
22.8Vdc
Transfer voltage to switch
into battery mode
22.5Vdc
Internal current
consumption
1.1A Includes charging
current
Output in power supply mode:
Input to output voltage loss 230mV At 10A output load
330mV At 15A output load
Output current 15A Continuous
Output in battery mode:
Output voltage 22.45V At no output load
22.25V At 10A output load
Output current 10A Continuous
15A Short term, up to 5s
Buffer time min. 13’24’’ At 5A output current
min. 4’54’’ At 10A output current
typ. 16’15’’ At 5A output current
typ. 6’15’’ At 10A output current
typ. 7h 35’ At 0.2A output current
Charging time 3h For a fully discharged
battery
Power losses 5.5W At 10A output load
Temperature range 0°C to +40°C
Max. wire size (litz wire) 4mm² For power terminals
Wire size AWG AWG 20-10 For power terminals
Max. wire diameter 2.8mm For power terminals
Wire stripping length 10mm/ 0.4inch For power terminals
Max. wire size (litz wire) 1.5mm² For signal terminals
Wire size AWG AWG 22-14 For signal terminals
Max. wire diameter 1.5mm For signal terminals
Wire stripping length 6mm/ 0.25inch For signal terminals
Tightening torque 0.4Nm/ 3.5lb.inch For signal terminals
Size (wxhxd) 123x124x119mm Without DIN-rail
Weight 2850g / 6.28lb
Functional Diagram
Input
Fuse
-
+
-
+
Boost
Converter
Battery
Charger
Electronic
Current
Limiter
Battery
Tester
Disconnect
Relay
Output
Diagnosis LED
Status LED
Inhibit +
Controller
Check Wiring LED
Replace Battery
Buffering Contact
Ready Contact
Buffer-time Limiter
End-of-charge
Voltage
(7)
Inhibit -
(8)
(1)
(2)
(3)
(4)
(5)
(6)
Input Fuse,
Reverse
Polarity
Protection
Return
Current
Protection
Temp.
Sensor
+
-
12V
Battery
Wiring Scheme
Signals
OutputInput
DC-UPS
Load
Power
Supply
Output
Input
+
-
+
-
+
-
+
-
L N
PE