Instructions

EN
UC10.241 Installation Manual
Product Description
The UC10.241 is an uninterruptible power supply controller (DC-UPS) with included storage
capacitors, 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 capacitors. When the
power supply voltage fails, the energy stored in the capacitors 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
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 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 capacitors.
Check for correct input 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 for ambient temperatures up to
+40°C and 80°C for ambient temperatures up to +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 +60°C (+140°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 T4 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 capacitor is charged. During 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, a high temperature, an expired buffer time or an activated inhibit
input.
Red Warning LED
This LED indicates a failure in the input voltage or an activated PC-mode.
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 and Buffering Relay Contacts
The Ready contact is closed when the capacitor is charged and the unit is ready to buffer.
The Buffering contact is closed when the unit is in buffer mode.
Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for resistive loads.
PC-Mode Input
The PC-mode always turns the output off for at least 5s after a buffer event lasting longer than 1s,
independent of whether the 24V may have recovered during this time. This function ensures that the
PC gets a restart signal. To enable a safe shut-down of the system, the forced turn off of the output is
delayed with a constant time of 70s.To activate the PC-mode, connect the two pins marked with “PC-
mode” together on the signal connector together.
Technical Data
All values are typical figures specified at 24Vdc input voltage, 15A 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 buffer mode
22.8Vdc
Transfer voltage to switch
into buffer 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 buffer mode:
Output voltage 22.45V At no output load
22.25V At 10A output load
Output current 15A Continuous
Buffer time 340s At 0.5A output current
39s At 5A output current
16.5s At 10A output current
9s At 15A output current
Charging time 16 minutes For initial charging
4 minutes 30s For recharging shortly
after a 5A buffer event
Power losses 4.6W At 10A output load
Temperature range -40°C to +60°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 24-16 For signal terminals
Max. wire diameter 1.5mm For signal terminals
Wire stripping length 8mm/ 0.3inch For signal terminals
Size (wxhxd) 126x124x117mm Without DIN-rail
Weight 1150g / 2.54lb
Functional Diagram
Boost
Converter
Charger
Balancing
and
Safety
Circuits
Electronic
Current
Limiter
Output
Diagnosis LED
Status LED
+
Controller
Warning
Buffering Contact
Ready Contact
(5)
-
(6)
(1)
(2)
(3)
(4)
Capacitors
Input Fuse,
Reverse Polarity Protection,
Return Current Protection
Temp
Input
Voltage
Monitor
Inhibit
(7)
(8)
PC-Mode
Input
-
+
+
-
Chassis
Ground
Wiring Scheme
Signals
OutputInput
DC-UPS
Load
Power
Supply
Output
Input
+
-
+
-
+
-
+
-
L N
PE
LED Signal Pattern
Ready
Charging
Buffering
Green Status LED:
Current Overload
High Temperature
Buffer Time
Expired
Inhibit Active
Yellow Diagnosis LED:
Check Input
Voltage
Red Warning LED:
PC-Mode
Activated