LEAB CDR 12/24 V User manual

www.leab.eu
USER MANUAL
VERSION 3
14/04/2021
BATTERY ISOLATOR
CDR 12/24 V
LEAB Automotive GmbH Thorshammer 6 24866 Busdorf

Table of Contents
1 About this Manual................................................................................................................ 3
2 General Safety........................................................................................................................ 4
2.1 Intended Use............................................................................................................... 5
2.2 Foreseeable Misuse.................................................................................................. 5
3 Package Contents................................................................................................................. 6
4 Technical Specifications.................................................................................................... 6
5 About this Product............................................................................................................... 7
6 Assembly.................................................................................................................................. 8
7 Installation.............................................................................................................................. 9
7.1 Optional: Activate bypass function.................................................................... 10
7.2 Optional: Connect remote LED display............................................................ 10
7.3 Optional: Change the charging current distribution.................................. 10
7.4 Optional: Activate switch-off function ............................................................. 11
8 Operation................................................................................................................................. 12
8.1 Operating status........................................................................................................ 12
9 Maintenance........................................................................................................................... 13
10 Disposal.................................................................................................................................... 13
11 EU Declaration of Conformity.......................................................................................... 13
Table of Contents LEAB Automotive GmbH

1 About this Manual
Read this manual carefully and keep it in a safe place. This manual is aimed at
Skilled workers in the field of automotive electrics.
Any modifications to the product or its components are prohibited and do not
conform to its intended use. Only use original LEAB or LEAB-approved ac-
cessories.
Throughout the manual, you will be alerted to warnings and safety notices
about potential hazards associated with handling the device. The colours and
signal words indicate the severity of the hazard:
Notice
Possibility of material damage
The signal word Attention indicates that there is a possibility of
material damage. To avoid material damage, follow the
instruction.
CAUTION
Danger that can lead to minor injuries
A safety instruction with the signal word CAUTION denotes a
hazard with a low degree of risk which, if not avoided, can result
in minor or moderate injury. Read the safety information carefully
and follow the instructions to avoid it.
WARNING
Hazards that can lead to severe injuries or death
A safety instruction with the signal word WARNING indicates a
hazard with a high degree of risk which, if not avoided, will result
in death or severe injury. Read the safety information carefully
and follow the instructions to avoid it.
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LEAB Automotive GmbH 1 About this Manual

DANGER
Danger that will lead to severe injury or death
A safety instruction with the signal word Danger indicates a
hazard with a high degree of risk which, if not avoided, will result
in death or severe injury. Read the safety information carefully
and follow the instructions to avoid it.
You will find notes at some points in the manual. These appear as follows:
TIP
A note provides useful tips and information about the product.
Read the note carefully and follow the instructions where
applicable.
2 General Safety
This manual will help you to handle the device safely. Use the device solely in
accordance with its intended use. Observe the safety instructions.
WARNING
Risk of injury from damaged, frozen or deformed batteries
Damaged, frozen or deformed batteries can cause injuries.
1. Before using the battery, make sure that the battery is un-
damaged and the electrolyte is not frozen.
WARNING
Risk of fire from overheated battery
Flammable gases can escape if the battery overheats.
1. Always charge batteries in well-ventilated rooms and away
from ignition sources.
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2 General Safety LEAB Automotive GmbH

WARNING
Burns from escaping acid
Acid can leak out when handling batteries.
1. Wear acid-proof clothing when handling batteries.
WARNING
Danger from short circuits
Contact of the screw terminals with metallic and/or conductive
vehicle parts can cause short circuits that can lead to serious
injuries.
1. Avoid contact of the screw terminals with metallic and/or
conductive vehicle parts.
2.1 Intended Use
The CDR 12/24 V can be installed between the starter and auxiliary battery as
an electronic charging current distributor. The charging current can be distrib-
uted both bi-directionally and unidirectionally. The batteries are charged al-
most loss-free and the plastic housing protects against short circuits.
Thanks to a switch-off function, it can also be used as an automatic cut-off re-
lay to switch a consumer or an on-board supply system on or off.
The device is designed for an operating temperature of -40°C ... +60°C.
2.2 Foreseeable Misuse
Use the insulating caps supplied.
Protect supply lines with a suitable fuse.
Only use appropriate electrical cables with a suitable cross-section.
Only use suitable ring cable lugs and tools intended for this purpose.
Install the CDR in such a way that cooling is made possible by air supply.
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LEAB Automotive GmbH 2 General Safety

3 Package Contents
Item No.
CDR x 1
User manual x 1
Insulating caps x 2
Hex. nuts, M8 x 2
Washers, M8 x 2
4 Technical Specifications
Part no.: 1072001001
Modell CDR 12/24 V
Current limit 200 A I 100 A
Input voltage universal 12 V or 24 V
Typical switch-on voltage 13.5 V I 27.5 V
Typical switch-off voltage 12.8 V | 25.6 V
Quiescent current switched off < 1 mA
Quiescent current switched on < 25 mA
Operating temperature -40 °C ... +60 °C
International Protection (IP class) IP67
Dimensions (L x W x H) 134 mm x 95 mm x 31 mm (with screw
terminal height 58 mm)
Weight 700 g
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4 Technical Specifications LEAB Automotive GmbH

5 About this Product
1 2 3 4 5
6
7
Fig.1: CDR 12/24 V
1 PIN 1 LED (connection for ex-
ternal LED) 2 PIN 2 BI/UNI (connection for changing the charging current
distribution)
3 PIN 3 OFF (connection for activ-
ating the switch-off function) 4 PIN 4 ON (connection for the by- pass function)
5 PIN 5 GND (connection for GND) 6 Screw terminal 2 (output)
7 Screw terminal 1 (input)
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LEAB Automotive GmbH 5 About this Product

Fig.2: Dimensioned drawing CDR 12/24 V
6 Assembly
NOTE!Maximum torque: 10 Nm
To assemble the device, perform the following steps:
üChoose a cool, dry and well-ventilated assembly site.
üDo not mount the device directly next to or above batteries.
üGuarantee adequate cooling for an unimpeded supply of cooling air.
1 Fasten the device to the 4 holes on the side (Ø 6mm).
ðThe device is assembled.
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6 Assembly LEAB Automotive GmbH

7 Installation
TIP
In vehicles with generator management, auxiliary batteries are not
sufficiently charged by conventional cut-off relays or current dis-
tributors.
LEAB recommends installing the charge boosterBPC12-12/40
(part no.: 1041003001).
To install the device, perform the following steps:
NOTE!Maximum screw terminal torque: 20 Nm
1 Connect the positive terminal of the starter battery to screw terminal 1 (in-
put).
2 Connect the positive terminal of the auxiliary battery to screw terminal 2
(output).
3 Connect the plug contact PIN 5 (connection for GND) to a ground.
4 Connect the negative terminal of the starter battery and the negative ter-
minal of the auxiliary battery to a common ground.
ðThe device is installed.
TIP
Various optional functions can be installed via the plug contacts
PIN 1-5.
Use 6.3 mm flat plugs.
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LEAB Automotive GmbH 7 Installation

7.1 Optional: Activate bypass function
The bypass function (permanently ON) is used to charge the starter battery
with the auxiliary battery if the voltage of the starter battery is too low. The
voltage detection through PIN 5 (GND) is deactivated so that the CDR distrib-
utes charging current at any voltage.
To use the function, carry out the following step:
1 Switch the plug contact PIN 4 to ground.
ðThe function is activated.
7.2 Optional: Connect remote LED display
An external LED can be connected and used as a remote display to detect
whether the device is conducting current.
To install the function, perform the following step:
NOTE!External LED: Output 5 V, max. 5 mA. Not included in the scope of de-
livery.
1 Connect the plug contact PIN1 to the input of an external LED.
2 Connect the other terminal of the external LED to ground.
ðThe function is installed.
7.3 Optional: Change the charging current distribution
The CDR can distribute the charging current both bidirectionally and unidirec-
tionally. The factory default setting is bidirectional charging current distribu-
tion in two directions.
To change the direction of the charging current distribution to unidirectional,
carry out the following step:
1 Switch the plug contact PIN2 to ground.
ðThe charging current distribution is unidirectional from screw terminal 1 to
screw terminal2.
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7 Installation LEAB Automotive GmbH