Instructions

EN
UB10.242 Installation Manual
Product Description
The UB10.242 is an uninterruptible power supply controller (DC-UPS), which is used in combination
with a 24V power supply and one external 12V-battery 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.
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 an enclosure providing protection against electrical, mechanical and fire hazards.
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 sources. 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 17Ah and 130Ah.
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 70°C. Ensure that all strands of a
stranded wire enter the terminal connection.
Do not use wires smaller than 2.5mm
2
(or AWG 12) and not longer than 2x1.5m between the battery
and the DC-UPS controller. Longer or smaller gauge wires can change performance of the system.
Use a 30A fuse (ATOF
®
287 030 from Littelfuse or an UL listed fuse with the same characteristics) in
the battery circuit. The battery fuse protects the wires between the battery and the DC-UPS and shall
be located close to the battery.
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 input and the battery input 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 +50°C (+122°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.
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 or change unit settings 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 IP54
and fulfils the requirements of the EN 60079-0.
Functional Description
The output is electronically protected against no-load, overload and short circuit and can supply any
kind of loads, including unlimited inductive loads and capacitive loads.
Do not apply return voltages from the load to the output terminals higher than 35V.
Green Status LED
This LED is on solid, when the battery is charged more than 85%. During battery charging, the LED is
flashing with a slow frequency and rapid flashing is an indication of a buffer event.
Yellow Diagnoses LED
This LED reports an overload situation, an activated inhibit input or when the battery should be replaced.
Red Check Wiring LED
This LED indicates a failure in the installation such as too low input or battery voltage, incorrect wiring, blown
or missing battery fuse.
Battery Temperature Selector
The end-of-charge voltage depends on the battery temperature. Adjust with this dial the expected battery
temperature to achieve the longest service life of the battery.
Inhibit Input
The inhibit input disables or stops buffering. In power supply mode, a continuous input of 10-30V is
required. During buffering, a short input of 10-30V for at least 250ms is required to stop buffering. The
current of the inhibit input is limited to 6mA by the DC-UPS control unit.
Ready, Buffering and Replace Battery Relay Contacts
The Ready contact is closed when the battery is 85% charged and the unit is ready to buffer.
The Buffering contact is closed when the unit is in buffer mode.
The Replace Battery contact is closed when a battery replacement is necessary.
Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for resistive loads.
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
2.0A 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
Power losses 5.5W At 10A output load
Temperature range -25°C to +50°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) 49x124x117mm Without DIN-rail
Weight 545g / 1.20lb
Functional Diagram
-
+
-
+
Boost
Converter
Battery
Charger
Electronic
Current
Limiter
Battery
Tester
+
-
Disconnect
Relay
Input Output
Diagnosis LED
Status LED
Inhibit +
Controller
Check Wiring LED
Replace Battery
Buffering Contact
Ready Contact
Battery
Temperature
(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
+-
Battery
12V
DC-UPS
Load
Power
Supply
Output
Input
+
-
+
-
+
-
+
-
Batt.
+
-
max. 2x1.5m
min. 2.5mm
2
(12AWG)
12V Battery
Module
Fuse
max.
30A
+
-
L N
PE
LED Signal Pattern
Ready
Charging
Buffering
Green Status LED:
Overload
Replace Battery
Inhibit Active
Yellow Diagnosis LED:
Fault
Red Check Wiring LED: