Victron energy Smart BMS CL 12/100 User manual

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Smart BMS CL 12/100

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H

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EN ES IT PT TR
1. General Description
A Smart BMS with Charge Current Limiter that protects the alternator
against overload
The Smart BMS CL is intended for use with Victron Smart LiFePo4 batteries
with M8 circular connectors. It supports up to 5 batteries in parallel (BTVs are
simply daisy-chained).
Starter battery Protection
This function is similar to that of a Cyrix Battery Combiner or Argo FET Battery
Isolator. Current can flow to the LFP battery only if the input voltage (= voltage
on the starter battery) exceeds 13V.
Additionaly, current cannot flow back from the LFP battery to the starter
battery, thus preventing eventual damage to the LFP battery due to excessive
discharge.
Alternator and battery protection
The input current is electronically limited to approximately 80% of the fuse
rating. A 100A fuse, for example, will therefore limit the input current to
approximately 80A. (For fuse ratings and corresponding current limit please
see table 1)
Choosing the right fuse will:
a. Protect the LFP battery against excessive charge current (important in case
of a low capacity LFP battery).
b. Protect the alternator against overload in case of a high capacity LFP
battery bank (most 12V alternators will overheat and fail if running at
maximum output during more than 5 minutes).
Li-ion battery protection
Excessive input voltage and transients are regulated down to a safe level.
The BMS will stop charging in case of cell over voltage or over temperature.
It has three outputs, similar to the miniBMS:
Load Disconnect output
The Load output is normally high and becomes free floating in case of
imminent cell under voltage (default 2,8V/cell, adjustable on the battery
between 2,6V and 2,8V per cell). Maximum current: 10mA. The Load output
can be used to control the remote on/off input of a Battery Protect, inverter,
DC-DC converter or other loads.
Pre-Alarm output
The pre-alarm output can be used as warning when the battery voltage is low
and it will trip shortly before the Load Disconnect output is disabled due to cell
under voltage.
The pre-alarm output may be used to drive a relay, LED or Buzzer. It can be
configured as continuous or intermittent signal.
The pre-alarm output is normally free floating and becomes high in case of
imminent cell under voltage (default 3,1V/cell, adjustable on the battery
between 2,85V and 3,15V per cell). Maximum current: 1A (not short circuit
protected)

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The minimum delay between pre-alarm and load disconnect is 30 seconds.
Charge disconnect output
The Charger output is normally high and becomes free floating in case of
imminent cell over voltage or over temperature. Maximum current: 10mA. The
Charger output is not suitable to power an inductive load such as a relay coil.
The Charger output can be used to control: The remote on/off of a charger, a
Cyrix-Li-Charge relay, a Cyrix-Li-ct Battery Combiner.
(Note: in some cases an interface cable will be needed, please see the
manual.)
A non-inverting or inverting on/off cable may be required, please consult the
appendix
Remote on/off input
The remote on/off input controls the charging via the alternator, while the BMS
functionality will remain active regardless of the remote on/off state.
The remote on/off can also be used as system on/off switch. Can be
conifugred via the VictronConnect.
The System on/off consists of two terminals: Remote L and Remote H.
A remote on/off switch or relay contact can be connected between L and H.
Alternatively, terminal H can be switched to battery plus, or terminal L can be
switched to battery minus.
LED indicators (from left to right)
•Green: Smart BMS CL 12V/100A is active
•Blue: blinking – Bluetooth broadcasting, ON – connection establised
•Red: Over-Temperature protection of the Current limiting 12V Smart
BMS
•Yellow: Charge disconnect output is enabled
•Orange: Load disconnect output is enabled
•Green: Alternator Charging

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2. Safety instructions
Installation must strictly follow the national safety regulations in compliance
with the enclosure, installation, creepage, clearance, casualty, markings and
segregation requirements of the end-use application. Installation must be
performed by qualified and trained installers only. Switch off the system and
check for hazardous voltages before altering any connection.
1. Do not open the Lithium Ion Battery.
2. Do not discharge a new Lithium Ion Battery before it has been fully
charged first.
3. Charge only within the specified limits.
4. Do not mount the Lithium Ion Battery upside down.
5. Check if the Li-Ion battery has been damaged during transport.
3. Installation instructions
1. Mount the BMS preferably on a vertical surface, for optimal cooling.
2. Determine the rating of fuse (see figure and table 1). The fuse doubles as
a shunt, thus the BMS CL will limit the input current according to the rating
of this fuse. For fuse and corresponding current limit please see table 1.
Choosing the right fuse will prevent overheating of the alternator and/or
DC cabling.
3. Disconnect the cabling from the minus pole of the starter battery.
4. Pull off the REMOTE on/off connector to prevent unwanted switching of
the BMS.
5. Install and connect the fuse and all electrical cabling, leave the minus
poles of the Li-ion batteries and starter battery disconnected. Make sure
that the M8 nuts of the fuse are properly tightened.
6. Daisy-chain the battery control cables between the Li-ion batteries and
connect to the BMS.
7. Connect the GND cabling to the minus of Li-ion batteries and the starter
battery.
8. Reinsert the REMOTE on/off connector on the BMS.
The BMS is now ready for use.

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Table 1: charge current per fuse rating
Fuse ratings
Max charge current
125A
100A
100A
90A
80A
60A
60A
50A
2 x 30A
40A
2 x 20A
25A
2 x 15A
20A
2 x 10A
12A
2 x 7.5A
9A

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4. Things to consider
4.1 Important warning
Li-ion batteries are expensive and can be damaged due to over discharge or
over charge.
Damage due to over discharge can occur if small loads (such as: alarm
systems, relays, standby current of certain loads, back current drain of battery
chargers or charge regulators) slowly discharge the battery when the system
is not in use.
In case of any doubt about possible residual current draw, isolate the battery
by opening the battery switch, pulling the battery fuse(s) or disconnecting the
battery plus when the system is not in use.
A residual discharge current is especially dangerous if the system has
been discharged completely and a low cell voltage shutdown has
occurred. After shutdown due to low cell voltage, a capacity reserve of
approximately 1Ah per 100Ah battery capacity is left in the battery. The
battery will be damaged if the remaining capacity reserve is drawn from
the battery. A residual current of 10mA for example may damage a
200Ah battery if the system is left in discharged state during more than 8
days.
4.2 DC loads with remote on/off terminals
DC loads must be switched off or disconnected in case of imminent cell under
voltage.
The Load Disconnect output of the Smart BMS CL 12-100 can be used for this
purpose.
The Load Disconnect is normally high (equal to battery voltage) and becomes
free floating (= open circuit) in case of imminent cell under voltage
DC loads with a remote on-off terminal that switches the load on when the
terminal is pulled high (to battery plus) and switches it off when the terminal is
left free floating can be controlled directly with the Load Disconnect output.
See appendix for a list of Victron products with this behavior.
For DC loads with a remote on/off terminal that switches the load on when the
terminal is pulled low (to battery minus) and switches it off when the terminal
is left free floating, the Inverting remote on-off cable can be used. See
appendix.
Note: please check the residual current of the load when in off state. After low cell
voltage shutdown a capacity reserve of approximately 1Ah per 100Ah battery
capacity is left in the battery. A residual current of 10mA for example may damage
a 200Ah battery if the system is left in discharged state during more than 8 days.

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4.3 DC load: disconnecting the load with a BatteryProtect
A Battery Protect will disconnect the load when:
- input voltage (= battery voltage) has decreased below a preset
value, or when
- the remote on/off terminal is pulled low.
The Smart BMS CL 12-100 can be used to control the remote on/off terminal
of a BatteryProtect.
Contrary to a Cyrix or contactor, a BatteryProtect can start a load with a large
input capacitor such as an inverter or a DC-DC converter.
4.4 Charging the LiFePO₄battery with an additional battery charger
Battery charging must be reduced or stopped in case of imminent cell over
voltage or over temperature.
The Charge Disconnect output of the Smart BMS CL 12-100 can be used for
this purpose.
The Charge Disconnect is normally high (equal to battery voltage) and
switches to open circuit state in case of imminent cell over voltage.
Battery chargers with a remote on-off terminal that activates the charger when
the terminal is pulled high (to battery plus) and deactivates when the terminal
is left free floating can be controlled directly with the Charge Disconnect
output.
See appendix for a list of Victron products with this behavior.
Battery chargers with a remote terminal that activates the charger when the
terminal is pulled low (to battery minus) and deactivates when the terminal is
left free floating, the Inverting remote on-off cable can be used. See
appendix.
Alternatively, a Cyrix-Li-Charge can be used:
The Cyrix-Li-Charge is a unidirectional combiner that inserts in between a
battery charger and the LiFePO₄battery. It will engage only when charge
voltage from a battery charger is present on its charge-side terminal. A control
terminal connects to the Charge Disconnect of the Current limiting 12V Smart
BMS.
4.5 Battery
In case of several batteries in parallel and/or series configuration, the two M8
circular connector cord sets of each battery should be connected in series
(daisy chained). Connect the two remaining cords to the BMS.

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5. System examples
Figure 1: Application example for a vehicle or boat, with on/off switch
between H and L

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Figure 2: Application example with a MPPT and a Phoenix inverter
Figure 3: Application example with a Phoenix VE.Bus Inverter rated at 3kVA
and more

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Figure 4: Application example with a 3kVA Multi of a recent type that has
auxiliary inputs

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6. Specifications
Smart BMS CL 12-200
Maximum continuous charge
current
100A (with 125A fuse)
Input voltage to start charging > 13V
Current consumption, remote on 16 mA (excluding Load output and Charge output current)
Current consumption, remote off 5 mA (BMS functionality still active)
Load disconnect output
Normally high (Vbat – 0.1V)
Source current limit: 10mA (short circuit protected)
Sink current: 0A (output free floating)
Charge disconnect output
Normally high (Vbat – 0.1V)
Source current limit: 10mA (short circuit protected)
Sink current: 0A (output free floating)
Pe-alarm output
Normally free floating
High (Vbat) in case of alarm, max. 1A
(not short circuit proof)
System on/off:
Remote L and Remote H
Use modes of the system on/off:
a. ON when the L and H terminal are interconnected
b. ON when the L terminal is pulled to battery minus (V< 5V)
c. ON when the H terminal is high (V>3V)
d. OFF in all other conditions
GENERAL
Operating temperature range -40°C to +60°C
Humidity, maximum / average 100% / 95%
Protection, electronics IP65
DC power connection M8
DC connector battery minus Faston female, 6.3mm
ENCLOSURE
Weight 1,6kg
Dimensions (hxwxd) 65 x 120 x 224 mm
STANDARDS
Emission EN 61000-6-3, EN 55014-1
Immunity EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive Directive ECE R10-5

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Appendix:
1. Loads which can be controlled directly by the Load
Disconnect output of the BMS
Inverters:
All Phoenix inverters VE.Direct and Phoenix Inverters Smart:
Connect the LOAD DISCONNECT to the left-hand terminal (H) of the 2-pole
connector
DC-DC converters:
All Tr type DC-DC converters with remote on/off connector, and Orion 12/24-
20
Connect the LOAD DISCONNECT the right-hand terminal of the 2-pole
connector
Battery Protect and Smart Battery Protect
Connect the LOAD DISCONNECT to terminal 2.1 (right hand terminal) for the
Battery Protect and H pin for the Smart Battery Protet of the 2-pole connector
Cyrix -Li-Load
Connect the LOAD DISCONNECT to the control input
2. Loads for which an inverting remote on-off cable is
needed (article number ASS030550100 or -120)
All Phoenix VE.Bus inverters and VE.Bus Inverter Compact rated at 1200VA
or more.
3. Solar charge controllers which can be controlled
directly by the Charge Disconnect output
BlueSolar MPPT 150/70 and 150/80 CAN-bus
Connect the CHARGE DISCONNECT to the left-hand terminal of the 2-pole
connector (B+)
SmartSolar MPPT 150/45 and higher, 250/60 and higher
Connect the CHARGE DISCONNECT to the right-hand terminal (marked +)
or the left-hand terminal (marked H) of the 2-pole connector
4. Solar charge controllers for which a VE.Direct non
inverting remote on-off cable is needed
(article number ASS030550320)
All BlueSolar MPPT models, except the BlueSolar MPPT 150/70 and 150/80
CAN-bus
SmartSolar MPPT up to 150/35

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5. Battery Chargers
(note: no on-off cable needed when connecting the charger to the primary side
of the BMS)
Phoenix Smart IP43 Chargers
Connect the CHARGE DISCONNECT to the left-hand terminal (H) of the 2-
pole connector
Skylla TG battery chargers
Use a non inverting remote on-off cable.
(article number ASS030550200)
Skylla-i battery chargers
Use a Skylla-i remote on-off cable
(article number ASS030550400)
Other battery chargers:
Use a Cyrix-Li-Charge or connect the charger to the primary side of the BMS.

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6. MultiPlus-II
The MultiPlus-II models can be controlled from the Load Disconnect and
Charge Disconnect outputs by BMS CL 12-200 to MultiPlus cable (article
number ASS070200100). This cable must be wired to the remote on/off
connector of the MultiPlus-II (connect the black wire to the lower (-) terminal
and the red wire to the upper (+) remote on-off terminal). Both the Load
Disconnect and Charge Disconnect outputs of the BMS must be in ‘High’ state
in order for the MultiPlus-II to operate. After shutdown due to low battery
voltage, run the alternator or use a battery charger on the primary side of the
BMS to reset the system. The MultiPlus-II will then switch on and start
charging (if connected to an AC power source).

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7. MultiPlus
MultiPlus 3kVA or more
For more info on how to configure the MultiPlus to work with the Smart BMS
CL 12-100 please refer to the document on our website:
https://www.victronenergy.com/upload/documents/Manual-Connecting-other-
lithium-battery-systems-to-Multis-and-Quattros-EN.pdf
The Load Disconnect and Charge Disconnect Outputs will be wired to the
MultiPlus with two inverting remote on-off cables (article number
ASS030550100) as shown in figure 4 above.
MultiPlus 500VA – 1600VA & MultiPlus Compact 800VA – 2kVA
These MultiPlus models can be controlled from the Load Disconnect and
Charge Disconnect outputs by using the BMS CL 12-200 to MultiPlus cable
(article number ASS070200100).This cable must be wired to the remote on/off
connector of the MultiPlus (connect the black wire to the ON terminal and the
red wire to the (+) terminal).
Both the Load Disconnect and Charge Disconnect outputs of the BMS must
be in ‘High’ state in order for the MultiPlus to operate. After shutdown due to
low battery voltage, run the alternator or use a battery charger on the primary
side of the BMS to reset the system. The MultiPlus will then switch on and
start charging (if connected to an AC power source).

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1. Descripción general
Un Smart BMS con limitador de corriente de carga que protege el
alternador de la sobrecarga
El Smart BMS CL está pensado para su uso con baterías Victron Smart
LiFePo4 con conectores circulares M8. Es compatible con hasta 5 baterías en
paralelo (las BTV se conectan en cadena, sencillamente).
Protección de la batería de arranque
Esta función es similar a la de un combinador de baterías Cyrix o un puente
de diodos Argo FET. La corriente puede llegar a la batería LFP solo si la
tensión de entrada (= tensión en la batería de arranque) supera los 13 V.
Además, la corriente no puede regresar desde la batería LFP a la batería de
arranque, evitando así posibles daños a la batería LFP debido a una
descarga excesiva.
Alternador y protección de la batería
La corriente de entrada está electrónicamente limitada a aproximadamente el
80% del valor nominal del fusible. Por lo tanto, un fusible de 100 A, por
ejemplo, limitará la corriente de entrada a aproximadamente 80 A. (Puede
consultar en la tabla 1 los valores nominales de los fusibles y los límites de
corriente correspondientes)
La elección del fusible correcto:
a. protegerá la batería LFP contra corrientes de carga excesivas (importante
en el caso de baterías LFP de baja capacidad).
b. protegerá el alternador contra sobrecarga en caso de un banco de baterías
LFP de alta capacidad (la mayoría de los alternadores de 12 V se
sobrecalientan y fallan si funcionan a máximo rendimiento durante más de 5
minutos).
Protección de baterías de ion litio
Las sobretensiones de entrada, incluso transitorias, quedan reguladas en un
nivel seguro.
El BMS detendrá el proceso de carga en caso de sobretensión o
sobretemperatura de las celdas.
Tiene tres salidas, igual que el miniBMS:
Salida de desconexión de la carga
La salida de carga suele ser alta y pasa a flotación libre en caso de que haya
celdas que vayan a tener una baja tensión de forma inminente (por defecto
2,8 V/celda, regulable en la batería entre 2,6 V y 2,8 V por celda). Corriente
máxima: 10 mA. La salida de carga puede usarse para controlar la entrada de
on/off remoto de un Battery Protect, un inversor, un convertidor CC-CC u
otras cargas.
Salida de prealarma
La salida de prealarma puede usarse como advertencia cuando la tensión de
la batería es baja y se activará un poco antes de que la salida de desconexión
de carga se desactive debido a baja tensión en las celdas.

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La salida de prealarma puede utilizarse para activar un relé, un LED o una
señal acústica. Puede configurarse como una señal continua o intermitente.
La salida de prealarma suele estar en flotación libre y pasa a ser alta en caso
de que haya celdas que vayan a tener una baja tensión de forma inminente
(por defecto 3,1 V/celda, regulable en la batería entre 2,85 V y 3,15 V por
celda). Corriente máxima: 1 A (sin protección frente a cortocircuitos)
La demora mínima entre la prealarma y la desconexión de la carga es de 30
segundos.
Salida de desconexión del cargador
La salida del cargador es normalmente alta y se convierte en flotante en caso
de sobretensión o sobretemperatura inminente en las celdas. Corriente
máxima: 10 mA. La salida del cargador no es adecuada para alimentar cargas
inductivas como una bobina de un relé. La salida del cargador se puede
utilizar para controlar: El on/off remoto de un cargador, un relé Cyrix-Li-
Charge, un combinador de baterías Cyrix-Li-ct.
(Nota: en algunos casos se necesitará un cable de interfaz, véase el manual).
Puede ser necesario usar un cable on/off no inversor o inversor, véase el
apéndice
Interruptor remoto on/off
La entrada de on/off remoto controla la carga a través del alternador, mientras
que la funcionalidad del BMS se mantendrá activa independientemente del
estado del on/off remoto.
El on/off remoto también puede usarse como interruptor de
encendido/apagado del sistema. Puede configurarse a través de
VictronConnect.
El on/off del sistema consta de dos terminales: L remoto y H remoto.
Se puede conectar un interruptor on/off remoto o un contacto de relé entre L y
H.
Alternativamente, el terminal H se puede cambiar al polo positivo de la
batería, o el terminal L se puede cambiar al polo negativo de la batería.
Indicadores LED (de izquierda a derecha)
•Verde: Smart BMS CL 12 V/100 A activo
•Azul: intermitente – Bluetooth transmitiendo, estable – conexión
establecida
•Rojo: Protección de sobretemperatura del Smart BMS limitador de
corriente a 12 V
•Amarillo: La salida de desconexión del cargador está activada
•Naranja: La salida de desconexión de la carga está activada
•Verde: Alternador cargando

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2. Instrucciones de seguridad
La instalación debe cumplir estrictamente las normas de seguridad nacionales
en cuanto a los requisitos de recinto, instalación, línea de fuga, distancias de
seguridad, accidentes, marcas y segregación de la aplicación de uso final. La
instalación debe realizarse únicamente por instaladores cualificados y
formados. Apague el sistema y compruebe si hay tensiones peligrosas antes
de modificar cualquier conexión.
6. No abra la batería de ion litio.
7. No descargue una batería de ion litio nueva antes de que se haya
cargado completamente.
8. Cargue sólo dentro de los límites especificados.
9. No instale la batería de ion litio boca abajo.
10. Compruebe si la batería de ion litio se ha dañado durante el transporte.
3. Instrucciones de instalación
9. Monte el BMS preferentemente sobre una superficie vertical para una
refrigeración óptima
10. Determine el valor nominal del fusible (véase la figura y la tabla 1). El
fusible también actúa como derivador, de modo que el BMS CL limitará la
entrada de corriente según el valor nominal de este fusible. Puede
consultar en la tabla 1 los valores nominales de los fusibles y los límites
de corriente correspondientes.
La elección del fusible adecuado evitará el sobrecalentamiento del
alternador y/o de los cables de CC.
11. Desconecte el cable del polo negativo de la batería de arranque.
12. Retire el conector on/off REMOTO para evitar conmutaciones indeseadas
del BMS.

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13. Instale y conecte el fusible y todos los cables eléctricos, pero deje
desconectados los polos negativos de las baterías de ion litio y de la
batería de arranque. Compruebe que las tuercas M8 del fusible están
bien apretadas
14. Conecte en serie los cables de control de la batería de las baterías de ion
litio y conecte el BMS.
15. Conecte los cables GND al polo negativo de las baterías de ion litio y a la
batería de arranque.
16. Vuelva a insertar el conector on/off REMOTO en el BMS.
El BMS ya está listo para usar.