Elmdene UNIVERSAL-12V-5A-M User manual

Elmdene International Ltd
Tel:[phone]
3 Keel Close, Interchange Park
Fax: [phone]
Portsmouth, Hampshire, PO3 5QD, UK
Web: www.elmdene.co.uk
Universal PSU Range
Models : UNIVERSAL-12V-5A-M
UNIVERSAL-12V-5A-L
UNIVERSAL-24V-3A-M
UNIVERSAL-1224-L
INTRODUCTION
This manual covers a range of Power Supplies and enclosures designed for use for use in Access Control
and General Security applications. Each version comprises a 13.8Vdc or 27.6Vdc high efficiency,
switched mode Power Supply designed to fit into a robust metal enclosure. It has a unique universal
mounting system to allow fitment of a variety of 3rd party controllers or electronic devices. The Power
Supplies provide continuous full rated current to load plus an additional 0.5A battery charging for standby
lead acid batteries. Normal operation and fault signal outputs are provided.
FEATURES
•Continuous full rated current to load.
•Universal mains input rated voltage ranging from 100Vac to 240Vac.
•12Vdc, 24Vdc and selectable 12Vdc / 24Vdc options.
•High efficiency electronics for reduced running costs and lower operating temperatures.
•Installer safe design with all high voltage electronics fully protected.
•Full electronic short circuit and overload protection on load output under mains operation.
•Mains transient protection circuit.
•Front and rear tamper detection.
•Mains present LED.
•LED Fault indication.
•Universal mounting means for 3rd party Control Modules.
•Individually fused output(s).
•Deep discharge protection helps prevent battery failure when operating in standby mode for
extended periods.
SAFETY
Refer to the Power Supply Equipment (PSE) instruction for safe use.

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Large enclosure: 5 fixing positions
Medium enclosure: 3 fixing positions
This unit is intended for use by trained Service Personnel only. Once installed and operational there
are no user functions other than observance of the two LED indicators.
The green Mains LED will be illuminated whilst the mains supply is present. In the event of a fault
condition, the lower Fault LED will be illuminated under the conditions shown on page 7.
INSTALLATION AND COMMISSIONING
Installation and repair must be carried out by a certified professional or qualified electrician in
accordance with all relevant safety regulations that are applicable.
This unit is only suitable for installation as permanently connected equipment. This PSU is NOT
SUITABLE for external installation. This unit must be fed from a mains power source having a separate
(approved) disconnect device and fitted with a fuse or other over-current protection device rated at
3A maximum. Ensure that the disconnect device used has appropriate earth fault protection to the
applicable standard and before installation, ensure that external disconnect device is OFF.
EQUIPMENT MUST BE EARTHED.
OPERATING INSTRUCTIONS

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1. Mounting
•Mount enclosure securely in the orientation shown on Page 2 using 5mm diameter x
25mm minimum long screws that are appropriate for the mounting material.
•Allow minimum clearance of 100mm between the enclosure sides and ceilings or adjacent
walls. The enclosure must be mounted on a solid and continuous surface (e.g.: a wall, not
a column).
2. Cabling
•Route mains and low voltage/signal cables via separate cable entry holes.
•Use bushes and cable glands rated to the required standard.
3. Mains Power Up
•Attach correctly rated mains cable (minimum 0.5mm2[3A], 300/500Vac) and fasten using
cable ties.
•In the case of the 12/24Vdc switchable Power Supply, check that the correct output
voltage is selected.
•Apply mains power. Check for the correct output voltage on load outputs.
•Check green Main LED is on.
•Disconnect mains power.
4. Load Output
+LOAD
Red +ve voltage O/P to load equipment
-LOAD
Black -ve voltage O/P to load equipment
+BATT
Red lead to standby battery
-BATT
Black lead to standby battery
Tamper x 2
Tamper volt free contact
EPS
Volt free contacts for loss of mains indication
GEN
Volt free contacts for general faults (see signalling
outputs)
•Attach correctly rated load cable and fasten using cable ties. Check polarity
•Apply mains power and check green mains LED is on.
NOTE: Fault LED may be lit to indicate that no battery has been connected. This is normal.
•Verify load is operating correctly.
•Disconnect mains power.

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+ve (red) cable from
PSU
-ve (black) cable from
PSU
Link cable
+ve battery terminal
-ve battery terminal
Note: Battery
orientations may be
reversed. Observe
polarity.
5. Standby battery
NOTE: Ensure batteries being fitted to the unit are in good condition.
•Attach supplied battery cables to terminal block and then the battery.
NOTE: Ensure correct polarity of connections: +ve = red lead, -ve = black lead.
•For 24V systems with two batteries, connect as diagram below.
•Apply mains power and check green Mains LED is on.
•Check the fault indication LED is not illuminated.
•Disconnect mains power. Check that the batteries continue to supply voltage and current
to the load. The Green LED should be off.
NOTE: Batteries must have sufficient charge to supply the attached load.
•Reconnect mains power. Green LED should be on.
•Disconnect mains power, remove load fuse and check Fault LED is on.
•Replace Load fuse. Reconnect mains power, check Fault LED is off.
6. Tamper
•Connect tamper switch to the inputs of the control and indicating equipment (CIE).
•Close the lid and secure with the screw provided.
•With the unit mounted on the wall, check that the rear tamper is not over a recess or
raised area that will adversely affect its operation (e.g., over a mortar course).
•Check that the tamper switch is:
CLOSED when the cover is closed and the lid retaining screws are fitted.
OPEN when the retaining screws are removed.
•Use the adjustment screw if necessary to ensure the tamper switch operates when the lid
opens and closes.
•Close and fasten the cover. Re-check the tamper circuit is closed at the control panel.
Lid fixing screw
(Sets Tamper switch)
Tamper switch
connections
Adjustment screw

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CONNECTIONS,ALL SKUS
+LOAD
Red +ve voltage O/P to load equipment
-LOAD
Black -ve voltage O/P to load equipment
+BATT
Red lead to standby battery
-BATT
Black lead to standby battery
Tamper x 2
Tamper volt free contact
EPS
Volt free contacts for loss of mains indication
GEN
Volt free contacts for general faults (see signalling
outputs)
3RD PARTY CONTROLLERS
The hole pattern in the enclosures allows a wide variety of 3rd-party controllers to be mounted in any
position. A fixing kit is included that comprises different sizes of standoffs and self-tapping screws
for this purpose.
For PCB type controllers, use arrowhead type standoffs:
For controllers that are mounted using screws:
2. Align controller in
suitable position in
enclosure.
1. Fit standoffs into
suitable PCB mounting
holes. Ensure correctly
sized standoffs (3mm
or 4mm) are selected.
3. Press standoffs into
selected hole position.
1. Align controller in
suitable position in
enclosure.
2. Fasten screws (Max torque 0.6Nm.)
Screw types supplied:
No 8 x 3/8” long
M4 x 25mm long Taptite

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CONFIGURATIONS
Top Level part numbers for each available configuration are tabled below.
Enclosure: L: Large, M: Medium. See Specification section for dimensions.
SPECIFICATION
Model
UNIVERSAL-
12V-5A-x
UNIVERSAL-
1224-x
(12Vdc)**
UNIVERSAL-
24V- 3A-x
UNIVERSAL-
1224-x
(24Vdc)
Input Specification
Voltage (Rated)
120Vac –240Vac
100Vac –240Vac
Voltage
(Operating)
90Vac-264Vac
Frequency
50 –60 Hz
Max input current
at 90Vac
2A
Output Specification
Mains Voltage
(Vdc)
13.5V to 14.2V
13.5V to 14.0V
27.0V to 28V nominal dc voltage
Standby battery
Voltage (Vdc)
10V to 12.3V
10V to 12.4V
21.0V to 24.7V
Ripple (peak to
peak Vdc)
<150mV
Max load current
5A
8A
3A
4A
Fuses
Mains input fuse
T3.15A HRC
Output fuse
4 x F1.25A
F8A
4 x F0.8A
F4A
Battery fuse
F5A
N/Applicable
F3.15A
None
PSU protect
N/Applicable
F4A
N/Applicable
F4A
** Default factory setting for the 1224 Power Module is 12Vdc mode
SKU
Enclosure
Description
UNIVERSAL-12V-5A-M
M
12V 5A Monitored in Medium enclosure
UNIVERSAL-12V-5A-L
L
12V 5A Monitored in Large enclosure
UNIVERSAL-24V-3A-M
M
24V 3A Monitored in Medium enclosure
UNIVERSAL-24V-5A-L
L
24V 5A Monitored in Large enclosure
UNIVERSAL-1224-L
L
12v 8A / 24V 4A selectable in Large enclosure

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Standby battery
Battery type
Valve regulated sealed lead acid
Voltage
12Vdc
24V (12Vdc x 2)
Maximum battery size
Medium enclosure: 2 x 17Ah or 3 x 7 Ah
Large enclosure: 2 x 17Ah or 4 x 7Ah
Battery charge current
Up to 0.5A
Mechanical
M (Medium) Enclosure
L (Large) Enclosure
Dimensions
(Including lid and
mounting tabs)
Width: 382mm
Height: 337mm
Depth: 90mm
Width: 407mm
Height: 507mm
Depth: 90mm
Weight
(Excluding batteries and
controllers)
~3.3kg
~5.2kg
Environmental
Temperature (Operating)
-10°C to 40°C RH75%
Temperature (Storage)
-20°C to 80°C
INDICATIONS AND FAULTS
EPS Fault [Mains Fault]
0.1A @ 60Vdc Normally Open volt free contact.
Open when loss of mains detected.
GEN Fault [General Fault]
0.1A @ 60Vdc Normally Open volt free contact
Open with general fault condition.
TAMP [front and rear] tamper]
Normally Open volt free contact
‘Open’when lid opened, or unit removed from wall.
Local Indicators (LEDs)
Mains Present LED
Green=Mains Present; Off=Mains Missing
Fault LED
Flashing = Fault detected; Off = Operating normally

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MAINTENANCE
There is no regular maintenance required of the PSU other than periodic testing and replacement of
the standby battery. Reference should be made to the battery manufacturer’s documentation to
determine typical/expected battery life with a view to periodic replacement of the battery.
If the output of the PSU fails, the cause of the failure should be investigated e.g., short circuit load. The
fault should be rectified before restoring power to the PSU. If a fuse needs to be replaced, ensure the
correct rating and type is used.
END OF LIFE
This product falls within the scope of EU Directives 2012/19/EU Waste Electrical and Electronic
Equipment (WEEE) and 2013/56/EU (Battery). At the end of life, the product must be separated from
the domestic waste stream and disposed via an appropriate approved WEEE disposal route in
accordance with all national and local regulations.
Before disposal of the product, any battery must be removed and disposed of separately via an
appropriate approved battery disposal route in accordance with all national and local regulations.
Package used batteries safely for onward transport to your supplier, collection point or disposal facility.
See Specification for battery type information.
For more information see: www.recyclethis.info.
The packaging supplied with this product may be recycled.
COMPLIANCE
See Elmdene International web site for current Declaration of Conformity.
SYMBOLS