Superb BCI User manual
Manual
BATTERY COMMUNICATION
INTERFACE (BCI)
Version
March 2022
2
User Manual Battery Communication Interface (BCI)
Dear customer,
This manual contains all the necessary information to install, use and maintain the Battery
Communication Interface (BCI). We kindly ask you to read this manual carefully before using
the product. In this manual the Battery Communication Interface will be referred to as the
BCI. This manual is meant for the installer and the user of the BCI. Only qualied personnel
may install and perform maintenance on the BCI. Please consult the index at the start of this
manual to locate information relevant to you.
During the use of the product, user safety should always be ensured, so installers, users,
service personnel and third parties can safely use the BCI.
Copyright© Super B All rights reserved. Licensed software products are owned by Super B
or its subsidiaries or suppliers, and are protected by national copyright laws and international
treaty provisions. Super B products are covered by Dutch and foreign patents, issued and
pending. Information in this publication supersedes that in all previously published material.
Specications and price change privileges reserved. Super B is a registered trademark of
Super B.
For more information please contact:
Super B Lithium Power B.V.
Europalaan 202
7559 SC Hengelo (Ov) The Netherlands
Tel: +31(0)88 00 76 000
E-mail: info@super-b.com
www: www.super-b.com
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Be in charge. Super B.
Table of content
1. Safety guidelines and measures 5
1.1. General 5
2. Introduction 5
2.1. Product description 5
2.2. Intended use 6
2.3. Glossary of Terminology 6
2.4. Used symbols 7
3. Product specifications 7
3.1. Typical setup of the BCI 7
3.2. Product features 8
3.3. BCI functional behaviour 9
3.3.1. General 9
3.3.2. Functionality of the power inputs 9
3.3.3. BCI States 11
3.3.4. Driver behaviour 13
3.4. BCI control functions 15
3.4.1. Auto-on 15
3.4.2. SoC shutdown/Switch-OFF 15
3.4.3. Reset 15
4. General product specifications 16
4.1. Electrical specications 16
4.2. Mechanical specications 16
4.3. Environmental specications 17
4.4. Scope of delivery 18
4.5. Connections, indicators and controls 18
4.5.1. CAN connector pinout (Master/Slave) 19
4.5.2. J3 (I/O Connection 10) 19
4.5.3. J4 (I/O Connection 10) 20
4.5.4. Indicators 20
4.6. Peripheral equipment 21
5. Installation 22
5.1. General information 22
5.2. Unpacking 22
5.3. Required tools for installation 22
5.4. Placement of the BCI 22
5.5. Connection wires 22
5.6. Electrical installation 23
5.6.1. Electrical installation - BCI power from battery bank 23
4
5.6.2. Electrical installation - BCI externally powered 25
5.6.3. Manual control 26
5.6.4. Pre-charge selection 27
5.7. CAN Bus 29
5.7.1. General information 29
5.7.2. Connecting the CAN network cables 29
5.7.3. CAN Bus network topology 30
5.7.4. Termination Resistors 30
5.7.5. CAN bus power 30
5.7.6. Integrating CAN Protocol 31
5.7.7. General purpose I/O 31
6. BCI use 31
6.1. General information 31
6.2. Conguring the BCI and the battery bank 32
6.3. Battery ID’s 32
6.3.1. Battery ID renumbering procedure 32
6.3.2. Battery layout 36
6.3.3. Input level conguration 37
6.3.4. BCI Modules 38
6.3.5. Pre-charge adjustment 39
6.3.6. General settings: Automatic control 40
6.3.7. General settings: State-of-charge switch-OFF level 41
6.3.8. Saving a conguration 42
6.4. Status and control 43
6.5. Status of the battery bank 44
7. Inspection and cleaning 47
7.1. General information 47
7.2. Inspection 47
7.3. Cleaning 47
7.4. Maintenance 47
8. Storage 48
9. Transport 48
10. Disposal 48
11. Troubleshooting 49
12. Warranty and liability 50
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Be in charge. Super B.
1. Safety guidelines and measures
1.1. General
• Treat the BCI as described in this manual.
• Do not disassemble, crush, puncture or shred the BCI.
• Never install or use a damaged BCI
• Do not expose the BCI to heat or re.
• Do not remove the BCI from its original packaging until required for use.
• The BCI shall not be used outside the electrical and mechanical specications as specied in
this manual.
• Do not mix Li-ion batteries of different capacity, size or type. Only use Super-B Li-ion traction
batteries with the BCI.
• Retain the original product documentation for future reference.
• Always take safety precautions when working on battery systems.
• Never short circuit the Li-ion battery.
!
Warning! Only trained experts shall handle or install a BCI and/or the related battery
systems. These systems can deliver very large currents and/or high voltages.
!
Caution! A caution sign indicates problems may occur if a procedure is not carried out as
described. It may also serve as a reminder to the user.
2. Introduction
2.1. Product description
The Battery communication Interface (BCI) is a device intended to control contactors or
relays that must be used to protect Super B Li-ion batteries from improper use. The BCI
collects data from one or multiple Li-ion batteries by a CANopen communication bus. This
data contains information about the status and the current use of the Li-ion batteries. If one
or more Li-ion batteries reports an issue, the BCI will turn off the contactors and protect
the Li-ion batteries. Although the BCI can be used to manage a single Li-ion battery, it is
intended to collect data from multiple Li-ion batteries in series and/or parallel for controlling
contactors. Other typical functions are:
• Control pre-charge functionality. Therefore, an additional contactor and resistor is needed tailored to
the application.
• Protocol conversions (depending on BCI software version).
• Control charger by CAN or charge enable signal (depending on BCI software version).
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2.2. Intended use
Potential applications to use the BCI in combination with Li-ion batteries from Super B are:
• Off grid applications
• Marine applications
• Medium for (renewable) energy storage (traction)
• Battery for vehicles.
Depending on the application it can be necessary that additional components are used to
assure that the installation is compliant with the applicable regulations. See chapter 5.6 for
information on electrical installations.
The BCI is sold as a single device, the customer is expected to source necessary
components for protecting the Li-ion batteries. Super B cannot be held responsible for
installations made by the customer.
Super B also offers the option of supplying the complete installation. This can be a standard
solution or a custom solution. The standard solution can be found on our website or by
contacting sales. The custom solution needs to be aligned with your sales and application
engineering contact.
If this manual does not cover or address your application, please contact Super B.
Only qualied personnel may install and perform maintenance on the complete system -
always refer to chapter 1 of this manual for safety guidelines.
The boundaries of the BCI use, as described in this manual should always be upheld. The
BCI may not be used in medical, or in aviation related applications. The BCI may not be used
for any purposes other than described in this manual. Using the BCI for any other purposes
will be considered improper use and will void the warranty of the product. Super B cannot
be held responsible for any damage caused by improper, incorrect, or unwise use of the
product. Please read and understand this entire manual carefully before using the product.
2.3. Glossary of Terminology
BMS Battery Management System
BIB Battery Interface Box
BCI Battery Communication Interface
LiFeP04 Lithium Iron Phosphate
Be in Charge Software PC application for monitoring control and conguration
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Be in charge. Super B.
DC-bus Load / charger side of main contactor(s)
SoC State of charge
CANopen CAN bus protocol
48V system A system that consists of 4 batteries in series
24V system A system that consists of 2 batteries in series
Table 1. Glossary of Terminology
2.4. Used symbols
The following icons will be used throughout the manual:
!
Warning! A warning indicates severe damage to the user and/or product may occur when a
procedure is not carried out as described.
!
Caution! A caution sign indicates problems may occur if a procedure is not carried out as
described. It may also serve as a reminder to the user.
3. Product specications
3.1. Typical setup of the BCI
Figure 1, depicts a typical setup of the BCI. The circuit shows the interconnections of the BCI
in an installation to protect the Li-ion battery (bank).
main relay high
pre charge relay
main relay low
CANbus
DC bus -
DC bus +
control
fuse
fuse
BCI
CANbus
to other systems
Figure 1. Typical BCI setup
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3.2. Product features
• Three dry outputs to control the minus, the plus, and the pre-charge contactor of the Li-ion
battery bank.
• Four galvanic isolated inputs for manual operation (not shown in Figure 1).
• Collecting the status and alarm messages of all the Li-ion batteries connected to the CAN
bus. In case of an alarm from one of the Li-ion batteries the BCI will control the contactors to
disconnect from the DC bus.
• Scanning the CAN bus to see if all the Li-ion batteries that are congured are present. In
case of a missing Li-ion battery, the BCI will go in alarm state and will control the contactors
to disconnect the Li-ion battery bank from the DC bus.
• Collecting information of all Li-ion batteries in the battery bank and presenting it as one Li-ion
battery on the CAN bus.
• Programmable power down on user adjustable Li-ion battery (bank) SoC level.
• Programmable Auto-On function.
• Up to sixteen Li-ion batteries can be connected to the BCI Master side CAN bus without
the need of external CAN power (Super B Li-ion batteries need power on their CANOpen
Interface).
• Up to 100 Li-ion batteries can be connected to the BCI with use of external CAN power.
• Drive a Pre-charge contactor to switch a capacitive load and prevent inrush currents.
• A mechanism that allows temporary reconnection of the Li-ion battery bank to the DC-bus in
an undervoltage situation.
• Logging function of diagnostics.
• Complete power down in case of an undervoltage of the Li-ion battery bank (I < 1 µA).
• The BCI has an open collector output/input for various additional applications.
• The BCI is a standalone device.
• The BCI must be congured using a CAN-USB (see Table 11) converter and the Be in Charge
software.
• Three status LEDs to indicate the status of the BCI and the Li-ion battery bank.
• Two power supply inputs
1. To power the BCI from an external supply or supply from the DC bus.
2. To power the BCI from the battery bank, this power input has a self-disconnect feature.
• Two CAN communication ports
1. The master port indicated by J1. This port is dedicated for the Li-ion batteries. The communication
protocol is CANopen.
2. The slave port indicated by J2. This port is to communicate with an external network. It can also
be used for other CAN protocols.
All the Li-ion battery (bank) values can be monitored on both ports. The Li-ion battery bank
can also be controlled by both ports. If the slave port (J2) is used for another protocol than
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Be in charge. Super B.
CANopen, monitoring and control of the Li-ion battery bank using the Be in Charge software
can only be done on the master port (J1). Though controlling on both sides is possible,
changes are not forwarded to the other port. Hence, this is not advisable.
3.3. BCI functional behaviour
3.3.1. General
The BCI monitors all connected Li-ion batteries through the CAN bus. Whenever one or more
Li-ion batteries reports an alarm, or is missing on the bus, the BCI will drive the contactors to
disconnect the Li-ion battery (bank) from the DC bus to avoid misuse of the Li-ion battery or
to prevent an unsafe situation. The alarms from the Li-ion battery can differ with each battery
type. Because the alarm is indicated to the BCI as a general alarm, any Super B Li-ion battery
with CANopen communication can be used in combination with the BCI. For alarms detected
and signaled by the Li-ion battery consult the manual of the Li-ion battery.
3.3.2. Functionality of the power inputs
The BCI can be powered by an external power supply or, by the Li-ion battery bank. However,
when powered from the Li-ion battery bank, the maximum number of Li-ion batteries in series
is limited to four.
!
Caution! The BCI can only be powered by a Li-ion battery bank if the bank consist of 4 or less
Li-ion batteries in series.
The BCI has two supply and one GND/minus input, see chapter 4.5:
1. The battery supply input, J4 pin 9
2. The DC-bus / external supply input, J4 pin 10
3. GND/minus, J4 pin 1
The DC-bus / external supply input can be used if the Li-ion battery bank consists of more
than 4 Li-ion batteries in series or when the self-shutdown functionality is not used. In that
case the Li-ion battery supply input is not to be connected.
The Li-ion battery supply input has internal disconnect functionality to minimize self-
consumption in case of a shut down. If the Li-ion battery bank is drained and there is a risk of
damaging the Li-ion batteries, the BCI disconnects the Li-ion battery bank from the DC-bus
and shuts down itself to no longer drain the Li-ion batteries. Refer to Figure 2 and Figure 3
simplied connection diagrams, depicted with focus on how to supply the BCI.
Only when the BCI is powered from the Li-ion battery bank the self-shutdown functionality is
used. For this functionality, refer to chapter 5.6.
10
main relay ...
DC bus -
DC bus +
control
battery bank
battery
supply
input
(J4, pin9)
BCI
DC-bus / external
suppply input ( J4, pin10)
GND(J4, pin1)
Figure 2. BCI supplied by the Li-ion battery bank
main relay...
DC bus -
DC bus +
control
battery bank
externally
supplied
BCI
DC-bus / external
suppply input ( J4, pin10)
GND(J4, pin1)
Figure 3. BCI supplied by external power supply
!
Caution! If Li-ion battery banks with a setup depicted in gure 2 are put in parallel by
connecting the DC-bus, the self-shutdown functionality will only occur when all BCI’s power
is off. Until that happens the BCI will be fed by the DC-bus and is not able to self-shutdown.
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Be in charge. Super B.
3.3.3. BCI States
The BCI different states, are listed in Table 2 BCI states below:
State Main relay Pre-charge relay Description
ON On Off Bank is connected to the DC-bus
OFF Off Off Bank is disconnected from the DC-bus
Pre-charge Off On Bank is pre-charging the DC-bus
Alarm Off Off An error occurred
Shutdown Off Off BCI is in power down mode
Undervoltage
reboot On Off BCI is turned on again after an undervoltage
shutdown
Table 2. BCI States
3.3.3.1 ON state
The BCI is in or can be set to the ON state when there are no active errors. In this state the
BCI enables the main contactor(s), the Li-ion battery bank is connected to the DC bus. The
BCI can be set to ON state using the Be in Charge software, or automatically when the Auto-
On feature is enabled. The BCI can only reach the ON state via the Pre-charge state rst.
3.3.3.2 OFF state
In this state the BCI disables all contactors, the Li-ion battery bank is disconnected from the
DC bus. The BCI boots in the OFF state. In addition, the BCI can be set in OFF state manually
by the Be in Charge software.
3.3.3.3 Pre-charge state
A contactor that must switch a large capacitive load can be exposed to high electric current
during initial turn-on. This current, if not limited, can cause considerable stress or damage to
the system components. Pre-charging is implemented to increase the lifespan of electronic
components and increase reliability of the contactor. In the pre-charge state the main relay
is disabled and the pre-charge relay is enabled. Refer to paragraphs 3.3.4.2 and 3.3.4.3 for
details about the behavior on voltage dependent or time dependent pre-charge settings.
3.3.3.4 Alarm state
When the BCI is in alarm the following may have occurred:
• The number of Li-ion batteries that respond to a present request does not match the number of Li-ion
batteries congured in the BCI. If the error is not resolved within 20 seconds, the BCI goes to OFF state.
• One or more of the Li-ion batteries reports an alarm. When the alarm of the Li-ion battery is cleared the
BCI stays in OFF state. Depending on which type of alarm the Li-ion battery signaled, this alarm can be
12
cleared automatically. Refer to the battery manual for the type of alarm and how to resolve it.
If the alarm state is cleared and the Auto-On feature is enabled, the BCI can go back to the
ON state.
3.3.3.5 Undervoltage off state - BCI externally powered
In case of an undervoltage event when the BCI is powered by an external power supply, it
will go into OFF state instead of shutdown. The rest of the behavior as described for systems
below 60 Vdc remains the same (see 5.4.1.4).
The BCI can be turned on again by power-cycling it (removing the power supply and
powering it gain) or by forcing the relay ON via software or by reset. When this happens, the
BCI will go into the undervoltage reboot state.
3.3.3.6. Undervoltage reboot state - BCI externally powered
In the undervoltage reboot state the Li-ion battery (bank) will be connected to the DC-bus,
but discharging is limited regarding capacity to 0.1 Ah. This allows chargers that need to
see a battery voltage, to start charging. The BCI will now allow the Li-ion battery bank to be
discharged with 0.1 Ah before it will go to OFF state again. When the Li-ion battery bank is
charged with 1 Ah, the BCI will switch to the ON state. The BCI will also go to the OFF state
after 10 minutes spent in the undervoltage reboot state, which implies that the Li-ion battery
bank should be charged with at least 1 Ah to avoid unnecessary shutdown.
3.3.3.7. Shutdown state - BCI battery bank powered
In this state the main relays and the pre-charge relay are disabled, the BCI doesn’t take any
power from the Li-ion battery bank and will turn off. However, if there is power on the DC bus
the BCI will stay on and takes only power from the DC-bus.
3.3.3.8. Undervoltage Shutdown - BCI battery bank powered
When a Li-ion battery indicates an undervoltage, the BCI will go into the shutdown state to
prevent draining the Li-ion batteries further. The BCI can be turned on again by a power cycle
or by applying voltage on the load side (i.e. turning on a charger). When this happens, the BCI
will go into the undervoltage reboot state.
3.3.3.9. Undervoltage reboot state - BCI battery bank powered
In the undervoltage reboot state the Li-ion battery (bank) will be connected to the DC-bus,
but discharging is limited regarding capacity to 0.1 Ah. This allows chargers that need to
see a battery voltage, to start charging. The BCI will now allow Li-ion the battery bank to be
discharged with 0.1 Ah before it will go to shutdown state again. When the Li-ion battery bank
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Be in charge. Super B.
is charged with 1 Ah the BCI will switch to the ON state. The BCI will also go to the shutdown
state after 10 minutes spend in the undervoltage reboot state, which implies that the Li-ion
battery bank should be charged with at least 1 Ah to avoid unnecessary shutdown.
The BCI behavior during undervoltage shutdown is different from other error states. This
was implemented specically to prevent draining of the Li-ion battery bank and allow the
automatic recovery as soon as a charger is connected. Refer to paragraph 5.4.1.4 (systems ≤
60Vdc) and parapgraph 5.4.2.4 (systems > 60Vdc) for details about undervoltage behavior of
the BCI.
!
Caution! In case of an undervoltage shutdown, charge the Li-ion batteries immediately.
!
Warning! In the case where a load and a charger are used simultaneously, and the charger
cannot supply enough current for the load, the Li-ion batteries will be discharged. When the
Li-ion batteries are empty the BCI wants to shut down due to an undervoltage event, but it
can’t since its powered by the charger on the load side of the BCI.
In this situation the BCI will remain in this state (relays off, but BCI on) if it is powered from
the load side by the charger. It is not possible to charge the Li-ion batteries.
To resolve this situation all loads and the charger should be shut down, this will shut down
the BCI. And then the charger should be turned on again, allowing the BCI to reboot. Now the
Li-ion batteries can be charged. In case of parallel Li-ion battery banks, all other BCI’s must
rst be off.
3.3.4. Driver behaviour
The BCI can control 2 protection contactors and a pre-charge relay:
• Main High Side (+)
• Main Low Side (-)
• Pre-charge
3.3.4.1. Turn on driver behaviour
When the BCI is set to ON state the drivers turn on in a certain sequence which is depicted in
Figure 4.
14
Figure 4. Turn-on sequence of drivers
When the system switches ON, the main low side driver and pre-charge driver are active
immediately. The main high side driver will be active only after the pre-charge sequence is
completed. See following paragraphs for Pre-charge behavior.
For systems ≤ 60Vdc, typically only the Main High Side contactor is used.
3.3.4.2. Pre-charge driver behaviour - BCI battery bank powered
To minimize the inrush current, the main high side contactor will only be closed if the voltage
difference measured over this contactor is less than 1.25V x [number of Li-ion batteries in
series]. An external pre-charge contactor should be connected to Pin 3 and 4 of connector J4
(see Figure 11). For example, for a 48V system (4 Li-ion batteries in series) the voltage across
the relay should be less than 5V. The BCI will remain in overlap state 1 seconds after the main
contactor has been enabled.
3.3.4.3. Pre-charge driver behaviour - BCI externally powered
For limiting the inrush current for systems > 60Vdc an external pre-charge relay should be
connected to Pin 3 and 4 of connector J4 (see Figure 12).
However, the switching behavior is different, and solely depends on time, because the
voltage difference over the contactor cannot be measured by the BCI. With the Be in Charge
software it is possible for the user to select a pre-charge duration > 3 seconds. By default, it
is set to 3 seconds.
The value of the pre-charge resistance and power rating is best calculated based on the
knowledge of the capacitive load of the system.
3.3.4.4. Turn off behaviour
When the BCI is set to OFF state, all drivers become inactive immediately.
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Be in charge. Super B.
3.4. BCI control functions
3.4.1. Auto-on
The Auto-On function automatically sets the BCI into ON state when the BCI is powered
up. Also, if a battery alarm has occurred and this alarm is cleared (see 3.4.3.4), the BCI
automatically goes to the ON state if the auto-on function is enabled. The Be in Charge
software can be used to control the auto-on function refer to 6.3.6. This functionality only
works with at most 4 Li-ion batteries in-series.
3.4.2. SoC shutdown/Switch-OFF
The SoC switch-OFF is a function that makes it possible, at a certain level of state of charge,
to put the BCI in:
• Shutdown state: if the BCI is powered by the Li-ion batteries,
• OFF state: if the BCI is powered by an external power supply.
The level can be set by the user and this function can be enabled or disabled. By default, it is
disabled. Control of this function is done by the Be in Charge software see 6.3.7.
When Li-ion the battery bank reaches the SoC set level, the BCI will go into shutdown or OFF
state. It is activated only with descending SoC level. If the BCI is in SoC shutdown/OFF state
it can be turned on again by power-cycling it. When the BCI is turned on again, it’s in the SoC
recovery state, during which it will not shutdown on SoC again unless the SoC of the Li-ion
battery (bank) is charged 1% above the set level. This re-enables the functionality. Once the
SoC shut down/off state has occurred and the BCI is turned on again, the Li-ion battery bank
can be discharged further until an undervoltage occurs.
The BCI will report a warning that the SoC is running low when the reported SoC is within
10% over the set shut down level.
Note: It is possible – with BCI software version 2.35 or higher and the latest Be in Charge
software - to congure the BCI to display and use the average SoC of the bank vs the lowest.
Super B recommends using the lowest.
3.4.3. Reset
Even with Auto-On enabled, some alarm types of the Li-ion battery can only be cleared by a
reset. To perform a reset, the user can select either to add an external hardwired reset button
on the BCI inputs (J3 pins 3-4, see 5.6.3) or reset by CANopen with use of the the Be in Charge
software.
16
4. General product specications
Product name: BCI
Product designation: 2CAN/115/80/29
Producer: Super B
Product type: Battery Communication Interface
Product Lifespan: >10 years
Table 3. General product specications
4.1. Electrical specications
Description Value Unit
Power supply 7.5...60 Vdc
Power supply required if BCI is
powering the CAN bus 15…60 Vdc
Power draw excluding CAN power <1 W
Current draw “full shut down” <1 µW
Internal Relay switch current (max, all 4) 4 A
Internal Relay switch voltage (max, all 4) 60 Vdc
Internal Relay isolation voltage 60 Vdc
Input voltage for manual control inputs 0...60 Vdc
Input high level 6.4...6.8 Vdc
Input isolation voltage 60 Vdc
Generic IO open drain, referring to BCI
ground
60 Vdc
100 mA
Table 4. Electrical specications
4.2. Mechanical specications
Height (H) 28.5 / 29.5 mm
Width (W) 114.5 / 115.5 mm
Thickness (T) 79.5 / 80.5mm
Weight 136g ± 10 g
Case material PC / ABS (FR3010)
Table 5. Mechanical specications
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Be in charge. Super B.
80,0
80,0
65,4
114,5
124,6
28,7
22,9
16,5
Figure 5. Dimensions
4.3. Environmental specications
Operating temperature range -40°C to 85°C / -40°F to 185°F
Recommended storage temperature range -40°C to 85°C / -40°F to 185°F
Relative humidity 5-85%, non-condensing
Ingress protection IP20
Shock and vibration Tested according to DNV requirements
Table 6. Environmental specications
!
Warning! The BCI may only be used in conditions specied in this manual. Exposing the BCI to
conditions outside the specied boundaries may lead to serious damage to the product and/or
the user.
18
4.4. Scope of delivery
Figure 6. Scope of delivery.
1. (1x) Battery Interface Box
2. (2x) Phoenix plug 10 MC 1,5/10-STF-3,81 1827787
3. (3x) CAN Cable male to male 0.6m
4.5. Connections, indicators and controls
Figure 7. Connections, Indicators and controls
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Be in charge. Super B.
2. J1, CAN Master connector; 5-pin CANopen micro style connector female
3. J2, CAN Slave connector; 5-pin CANopen micro style connector male
4. J3, I/O Connector, 10 pole; Phoenix MPE030-38110
5. J4, I/O Connector, 10 pole; Phoenix MPE030-38110
6. LED 1 - Yellow
7. LED 2 - Green
8. LED 3 - Red
4.5.1. CAN connector pinout (Master/Slave)
PIN # Signal Master side Slave side
1 CAN_SHLD Optional CAN Shield Optional CAN Shield
2 CAN_V+ CAN bus supply voltage 12V Not connected
3 CAN_GND Ground / OV Ground / OV
4 CAN_H CAN_H bus line (dominant
high)
CAN_H bus line (dominant
high)
5 CAN_L CAN_L bus line (dominant
low)
CAN_L bus line (dominant
low)
Table 7. CAN connector pinout
Male Female
2 1
34
5
1 2
43
5
Figure 8. CAN Connections Male and Female
4.5.2. J3 (I/O Connection 10)
PIN Description
1 Not used
2 Not used
3 Reset input +
4 Reset input -
5 Pre-charge input +
6 Pre-charge input -
20
7 Main Relay/Contactor Off input +
8 Main Relay/Contactor Off input -
9 Main Relay/Contactor On input +
10 Main Relay/Contactor On input -
Table 8. J3 (I/O Connection 10)
4.5.3. J4 (I/O Connection 10)
PIN Description
1 GND
2 IO1
3 Pre-charge relay NO
4 Pre-charge relay common
5 Main relay, low side NO
6 Main relay, low side common
7 Main relay, high side NO
8 Main relay, high side common
9 Battery +
10 Load +
Table 9. J4 (I/O Connection 10)
4.5.4. Indicators
LED 1 (Yellow) LED 2 (Green) LED 3 (Red) Mode
Flashing Off Off Pre-charge
Off On Off Main relay On
On On Off Main relay Off
On On On Battery in error mode or
communication error
Off Flashing Off CAN network scanning
Table 10. Indicators
Table of contents
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