Any responsibility or liability for loss or damage in connection with the use of this product and
the accompanying documentation is disclaimed. The information in this quick guide is furnished for
informational use only, is subject to change without notice, may contain errors or inaccuracies, and
represents no commitment whatsoever. This agreement is governed by the laws of Denmark.
Doc. No.: M4656COM Issue: C/0508
Page 3
Contents Battery Charger
CONTENTS
BATTERY CHARGER
1 INTRODUCTION 1-1
1.1 GENERAL DESCRIPTION 1-1
1.2 TECHNICAL DATA 1-1
2 TECHNICAL DESCRIPTION 2-1
2.1 PRINCIPLE OF OPERATION 2-1
3 INSTALLATION 3-1
3.1 OUTLINE AND DIMENSIONS 3-1
3.2 MOUNTING POSSIBILITIES 3-1
3.3 INSTALLATION WIRING 3-2
3.4 BLOCK DIAGRAM 3-3
3.5 AC SUPPLY VOLTAGE SETTING 3-4
3.6 CONNECTIONS 3-4
3.7 FLOAT CHARGE VOLTAGE ADJUSTMENT 3-6
4 SCHEMATIC DIAGRAM AND COMPONENT LOCATION 4-1
4.1 POWER SUPPLY UNIT 4-1
5 PARTS LIST 5-1
6 ACCESSORIES INCLUDED 6-1
0048
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Page 5
1 Introduction Battery Charger
BATTERY CHARGER
1 INTRODUCTION
1.1 GENERAL DESCRIPTION
The Battery Charger is designed as a stand alone unit.
The Battery Charger is designed with four separately fused output lines to ensure independent
supply for connected equipment if battery and Battery Charger is used in an uninterruptible power
supply (UPS) conguration.
Furthermore the Battery Charger includes the following features:
• 115V/230V selectable input.
• Encapsulation class IP22.
• Galvanic isolated AC alarm output.
• Protected Battery monitoring output.
• Indication of oat charge or main charge.
• Charges open or sealed lead-acid batteries.
• Easy connection.
• Easy access to fuses.
• Vertical or horizontal mounting.
• IEC 945 approved.
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1-1
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1 Introduction Battery Charger
1.2 TECHNICAL DATA
AC input voltages: 115V, range 88V - 132V or 230V, range 176V - 264V.
Manual setting.
AC input frequency: 50/60 Hz ± 6%
Float charge voltage: Adjustable 26.8V - 28.8V to voltage specied by battery manufacturer.
Potentiometer located under cover.
Main charge current: 10A continuous.
Charger type: Automatic, with oat charging. IE characteristic.
AC Mains Alarm output: Relay contacts 5-50mA, 10-32V. Closed in alarm condition.
Alarm in case of AC supply failure.
Protection: The Charger output is current limited and protected against polarity
reversal, short circuit, over voltage and over temperature.
Operating temperature: - 20° to + 55° C.
Dimensions: HxWxD: 110x370x260 mm.
Weight: Approx. 5 kg.
Compass safe distance: Standard: 1.4 m. Steering: 1.0 m.
1-2
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2 Technical Description Battery Charger
Main Charge
Float Charge
t
I max
Float Charge
Voltage
Lower level
t
U
I
37672
2 TECHNICAL DESCRIPTION
2.1 PRINCIPLE OF OPERATION
When charging the Battery Charger is operating as a constant current generator until the battery
voltage reaches the voltage level set by the oat voltage potentiometer. At this level the Battery
Charger is changing state to a constant voltage generator to maintain a constant voltage to the
battery.
Four DC outputs are connected directly to the battery making it possible to use the Battery Charger
and the battery in an uninterruptible power supply (UPS) conguration.
If the battery is loaded more than the Battery Charger can supply (>10A) power is taken from the
battery discharging it. In periods of less consumption the battery is recharged.
TYPICAL CHARGE CURVE
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2-1
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2 Technical Description Battery Charger
2-2
0048
Page 9
3 Installation Battery Charger
37669
4 screws M5 x 12
4 screws M5 x 12
370mm
Mounting, 4 holesø7mm
37670
160mm
260mm
331mm
110mm
Cable entry in bottom
350mm
1)1)
2)
1)
3 INSTALLATION
3.1 OUTLINE AND DIMENSIONS
1) Space for air ow min. 200mm
2) Space for cable 250mm
9.2 MOUNTING POSSIBILLITIES
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3-1
Page 10
3 Installation Battery Charger
20A
-
+
-+-
+
10A
10A
10A
10A
10A
DC 1
10A
+
-
20A
30A
+
-
BATTERY
CHARGE
X4
X5
X9
X10
X2
X1
FLOAT
MAIN
AC
ALR
LIGHT
AC
ALR
VBAT-
DC 2
DC 3
VBAT+
N
L
X14 X13
X15
-
+
Battery voltage monitor
AC alarm
Line
Neutral
Earth
37593
Fuse
230/115V AC input
28V DC fused 10A
28V DC fused 10A
28V DC fused 20A
28V DC fused 10A
230V/8AT
F13
115V/15AT
F12
BATTERY
3.3 INSTALLATION WIRING
3-2
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3 Installation Battery Charger
INPUT
RECTIFIER/
FILTER
CURRENT
TRAFO
PUSH-PULL
STAGE
CURRENT
FEEDBACK
DRIVER
STAGE
PWM
SLOPE
COMP.
POWER
TRAFO
OUTPUT
RECTIFIER/
FILTER
AUXILLARY
SUPPLY
OPTO
OTP
OVP
OPTO
BATTERY
MONITOR
37673
AC ALR
VBAT
BATTERY
AC-ALARM
DC 3
DC 2
LIGHT
DC 1
REGULATOR
230V AC
115V AC
3.4 BLOCK DIAGRAM
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3-3
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3 Installation Battery Charger
N
L
X14 X13
X15
37686
230V/8AT
F13
115V/15AT
F12
F13
RF ground
N
L
X14 X13
X15
37725
230V/8AT
F13
115V/15AT
F12
F12
RF ground
3.5 AC SUPPLY VOLTAGE SETTING
Before connecting the Charger to the AC mains, be sure that the Charger is set to the correct
voltage and that the fuse rating corresponds to the setting used.
The voltage setting is selected by changing the fuse located under the front cover. The equipment is
normally set to 230V. To select a different voltage insert the appropriate fuse.
Take care that the power is switched off before changing the fuse.
Fuse setting for 230V Fuse setting for 115V
Setting Voltage range Fuse rating
230V 176 - 264V F13 - 8AT
Setting Voltage range Fuse rating
115V 88 - 132V F12 - 15AT
Caution:
Incorrect setting of the mains voltage may damage the AC Power Supply assembly.
3.6 CONNECTIONS
AC INPUT
The AC supply leads are connected to the terminal block as indicated. Screened power supply
cable may be used as required by some administrations. The cable is fastened and the screen
connected by a cable clamp on the main chassis below the terminal block.
Terminal Designation Description
X13 N Neutral
X14 L Line
X15 Protective Earth
Recommended cable type: 3 x 1.5 mm² screened.
3-4
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3 Installation Battery Charger
BATTERY
The battery is connected to the battery terminals located to the left on the connection area. It is
recommended to have fuses at the battery. The cable dimension depends on current consumption
and permissible voltage drop in the cable.
The table below shows the necessary cable cross section for a voltage drop of 1% at 10A and
external fuse ratings.
Max. cable length
to battery
7 metres
11 metres
17 metres
Recommended
Screened multiwire
2 x 10 mm²
2 x 16 mm²
2 x 25 mm²
External
fuses
40A
50A
63A
Terminal Designation Description
X9 BATTERY - Input from Battery
X10 BATTERY +
OUTPUTS
Terminal Designation Description
X1 DC 1 + 28V DC or Battery
X2 DC 1 - voltage
Terminal Designation Description
X5 - 1 LIGHT - Emergency Light.
X5 - 2 LIGHT + 28V DC or Battery
voltage
Terminal Designation Description
X5 - 3 DC 2 - 28V DC or Battery
X5 - 4 DC 2 + voltage
Terminal Designation Description
X5 - 5 DC 3 - 28V DC or Battery
X5 - 6 DC 3 + voltage
X4 - 3 AC ALR Galvanically isolated AC alarm output.
X4 - 4 AC ALR Relay contacts 5 - 50mA, 10 - 32V.
Closed in alarm condition.
Alarm in case of AC supply failure.
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3-5
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3 Installation Battery Charger
RF GROUND TERMINAL
The RF ground terminal is placed to the right on the cable-clamping bar.
Terminal Designation Description
RF ground Grounding screw
for cable lug.
RF grounding requires special attention. Each equipment should have its own individual lowinductance earth connection.
CABLE SCREEN
The cable screen of each cable should be connected to the cable-clamping bar.
3-6
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3 Installation Battery Charger
R48
20A
-
+
-+-
+
10A
10A
10A
10A
10A
DC 1
10A
+
-
20A
30A
+
-
BATTERY
CHARGE
X4
X5
X9
X10
X2
X1
FLOAT
MAIN
AC
ALR
LIGHT
AC
ALR
VBAT-
DC 2
DC 3
VBAT+
N
L
X14 X13
X15
37726
230V/8AT
F13
115V/15AT
F12
3.7 FLOAT CHARGE VOLTAGE ADJUSTMENT
1. Connect a voltmeter to the “- Battery +” terminals X9 and X10 located to the left on the
connection area.
2. Connect the mains to the unit.
3. Adjust the potentiometer R48 located between the two aluminium covers (refer to the gure
below) until the charge voltage prescribed by the battery manufacturer is read on the
voltmeter (range 26.6V DC - 28.8V DC).
4. Disconnect all instruments.
5. Disconnect the mains to the unit.
6. Connect the battery to the “- Battery +” terminals located to the left on the connection area.
7. Connect the mains to the unit.
3-7
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3 Installation Battery Charger
3-8
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4 Schematic Diagram and Component Location Battery Charger
4 SCHEMATIC DIAGRAM AND COMPONENT LOCATION
4.1 POWER SUPPLY UNIT
SCHEMATIC DIAGRAM
0048
This diagram is valid for PCB 36550D
4-1
Page 18
4 Schematic Diagram and Component Location Battery Charger
COMPONENT LOCATION
Seen from komponent side with upper side tracks
PCB rev. 36550D