2. Installation and connection - Movicom Electric Docs

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= Installation and connection =

== Safety rules ==

To perform the protection functions, the BMS must be able to disconnect the battery from the load and charger. To do this, **at least one contactor** able to break the load and charge circuits must be connected to the BMS.

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Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.

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The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.

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The system is not designed to operate with batteries whose total voltage exceeds 3000 V.

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== Installation procedure ==

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The mounting location of the BMS Main 2R device must be protected from mechanical particles (dust, dirt, large objects) and water. The installation location must provide easy access for subsequent connection to the device connectors.

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Overall and mounting dimensions are shown in figure below.

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[[image:1774349658793-888.0b.STEP.JPG||data-xwiki-image-style-alignment="center" height="522" width="450"]](% title="Click and drag to resize" %)

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|**Parameter**|**Value**

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|Overall dimensions (length × width × height), mm|120 × 120 × 16

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|Mounting dimensions (length × width), mm|114 × 114

|Mounting holes|M3

== Headers ==

The location and designation of connectors on the BMS Main 2R device are shown below.

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[[image:1774455018488-627.png||data-xwiki-image-style-alignment="center"]]

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**Attention!**

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All headers are shown from the device side!

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=== X1 – header for discrete inputs and outputs ===

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Receptacle Housing: Hirose ZE05-8DS-HU/R. Terminals: Hirose ZE05-2022SCF

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[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]

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|**Pin**|**Name**|**Description**

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|**1–8**|**GND**|Ground

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|**9**|**DO_1**|Discrete output 1 (+5V, 20mA)

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|**10**|**DO_2**|Discrete output 2 (+5V, 20mA)

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|**11**|**DO_3**|Discrete output 3 (+5V, 20mA)

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|**12**|**DO_4**|Discrete output 4 (+5V, 20mA)

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|**13**|**DI_4**|Discrete input 4 (“dry contact”, +5V)

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|**14**|**DI_3**|Discrete input 3 (“dry contact”, +5V)

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|**15**|**DI_2**|Discrete input 2 (“dry contact”, +5V)

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|**16**|**DI_1**|Discrete input 1 (“dry contact”, +5V)

=== X2 – miniUSB connector ===

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The miniUSB connector is used to configure the parameters of the BMS Main 2R device.

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=== (% title="Click and drag to resize" %)(%%)X3 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for power supply(%%) ===

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Receptacle Housing: Molex 39012020. Terminals: Molex 5556

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[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]

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|**Pin**|**Name**|**Description**

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|**1**|**GND**|Ground

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|**2**|**V+**|Supply voltage (9-32V)

=== X4, X5, X6, X7 – header of relay 1, 2, 3 and 4 ===

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Receptacle Housing: Molex 39012020. Terminals: Molex 5556

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[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]

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|**Pin**|**Name**|**Description**

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|**1**|**V+**|Switching voltage (up to 55V, max 3A)

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|**2**|**NO**|Normally open contact

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Contactor connection example for all relays:

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[[image:1774456661980-866.png||data-xwiki-image-style-alignment="center" height="211" width="282"]]

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=== X8 – header for current sensor 1 ===

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Receptacle Housing: Molex 430250400. Terminals: Molex 43030

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[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]

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|**Pin**|**Name**|**Description**

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|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA

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|**2**|**GND**|Ground

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|**3**|**CS1_OUT**|Current sensor 1 output

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|**4**|**CS1_REF**|Current sensor 1 reference signal

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=== X9 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for current sensor 2(%%) ===

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Receptacle Housing: Molex 430250400. Terminals: Molex 43030

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[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]

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|**Pin**|**Name**|**Description**

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|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA

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|**2**|**GND**|Ground

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|**3**|**CS2_OUT**|Current sensor 2 output

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|**4**|**CS2_REF**|Current sensor 2 reference signal

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=== X10 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for temperature sensors(%%) ===

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Receptacle Housing: Molex 430250400. Terminals: Molex 43030

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[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]

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|**Pin**|**Name**|**Description**

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|**1, 2**|**GND**|Ground

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|**3**|**T_SENS1**|Temperature sensor 1 output

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|**4**|**T_SENS2**|Temperature sensor 2 output

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=== X11 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for BMS Logic(%%) ===

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Receptacle Housing: Molex 430250400. Terminals: Molex 43030

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[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]

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|**Pin**|**Name**|**Description**

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|**1**|**LOGIC_A**|RS-485 line A for communication with BMS Logic

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|**2**|**LOGIC_B**|RS-485 line B for communication with BMS Logic

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|**3**|**LOGIC_5V**|Supply voltage for BMS Logic

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|**4**|**GND**|Ground

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=== X12 – header for CAN2 interface ===

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Receptacle Housing: Molex 430250400. Terminals: Molex 43030

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[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]

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|**Pin**|**Name**|**Description**

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|**1**|**CAN2_H**|CAN2 H line for communication with internal equipment

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|**2**|**CAN2_L**|CAN2 L line for communication with internal equipment

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|**3**|**–**|–

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|**4**|**GND**|Ground

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=== X13 – header for CAN1 and RS-485 interfaces ===

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Receptacle Housing: Molex 430250600. Terminals: Molex 43030

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[[image:https://docs.movicomelectric.com/bin/download/Battery%20management%20systems/BMS%20Main%202.1/2.%20Installation%20and%20connection/WebHome/1731517180930-597.png?width=113&height=81&rev=1.1||alt="1731517180930-597.png" data-xwiki-image-style-alignment="center" height="81" width="113"]]

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|**Pin**|**Name**|**Description**

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|**1**|**RS485_1_A**|RS-485-1 line A for communication with external equipment

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|**2**|**CAN1_H**|CAN1 H line for communication with external equipment

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|**3**|**+5V**|Supply voltage 5V for external devices, max 200 mA

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|**4**|**RS485_1_B**|RS-485-1 line B for communication with external equipment

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|**5**|**CAN1_L**|CAN1 L line for communication with external equipment

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|**6**|**GND**|Ground

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=== J1 – jumper for switching CAN2 bus terminal resistor ===

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[[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the **CAN2_H **and **CAN2_L **lines, install a jumper. The jumper is installed according to the table:

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|**Pin**|**Name**|**Description**

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|**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN1 bus is connected

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|**2-3**|**-**|The 120 Ohm terminal resistor of the CAN1 bus is disconnected

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=== J2 – jumper for switching RS-485-1 bus terminal resistor ===

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[[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]

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To connect a terminal resistor between the **RS485_1_A **and **RS485_1_B **lines, install a jumper. The jumper is installed according to the table:

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|**Pin**|**Name**|**Description**

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|**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the RS-485-1 bus is connected

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|**2-3**|**-**|The 120 Ohm terminal resistor of the RS-485-1 bus is disconnected

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=== J3 – jumper for switching CAN1 bus terminal resistor ===

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[[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the **CAN1_H **and **CAN1_L **lines, install a jumper. The jumper is installed according to the table:

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|**Pin**|**Name**|**Description**

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|**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN1 bus is connected

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|**2-3**|**-**|The 120 Ohm terminal resistor of the CAN1 bus is disconnected

== Indicators ==