2. Installation and connection - Movicom Electric Docs

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= Connection =

== Safety rules ==

Before use, **configure the system**. Proper operation of the BMS IMD 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 900V.

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== Installation ==

The mounting location must be protected from mechanical obstacles (dust, dirt, large objects) and water. Device placement should provide easy access for connection.

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

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|Overall dimensions (length × width × height), mm|140 × 60 × 12

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|Mounting dimensions (length × width), mm|130 × 50

|Mounting holes|M3

== Headers ==

The BMS IMD has two headers for connecting the power line (X3 and X4), a header for connecting external equipment and power supply (X2), a chassis connection header (X1) and a jumper which connects a terminal resistor to the CAN bus (J1).

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[[image:1734009150915-999.png||data-xwiki-image-style-alignment="center" height="267" width="600"]]

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=== X1 – header for chassis connection ===

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Receptacle Housing: Molex 430250200. Terminals: Molex 43030

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[[image:1734009337118-173.png||data-xwiki-image-style-alignment="center"]]

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

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|**1**|**CHASSIS**|Vehicle chassis connection

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|**2**|**CHASSIS**|Vehicle chassis connection

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=== X2 – header for a top-level controller (v1.1 only) ===

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Receptacle Housing: Molex 430250800. Terminals: Molex 43030

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

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

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|**2**|**CAN_H**|CAN H line for communication with external equipment

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|**3**|**GND**|Ground

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

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|**5**|**V+**|Device supply line (9-32V)

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|**6**|**CAN_L**|CAN L line for communication with external equipment

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|**7**|**OUT_WORK**|Discrete output for work indication (open drain, max 60V, 1A)

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|**8**|**OUT_ERROR**|Discrete output for error indication (open drain, max 60V, 1A)

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**Notes:**

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The **OUT_WORK **signal signals the operation of the device’s main program and is generated when the device is turned on.

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The **OUT_ERROR **signal indicates a critical device error or a low insulation resistance value.

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=== X2 – header for a top-level controller (v1.2 only) ===

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Receptacle Housing: Molex 430251200. Terminals: Molex 43030

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[[image:1734009150926-839.png||data-xwiki-image-style-alignment="center" height="92" width="198"]]

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

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

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|**2**|**CAN_H**|CAN H line for communication with external equipment

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|**3**|**GND**|Ground

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

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|**5**|**GND**|Ground

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

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|**7**|**V+**|Device supply line (9-32V)

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|**8**|**CAN_L**|CAN L line for communication with external equipment

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|**9**|**OUT_WORK**|Discrete output for work indication (open drain, max 42V, 1A)

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|**10**|**OUT_ERROR**|Discrete output for error indication (open drain, max 42V, 1A)

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|**11**|**KEYRUN_1**|Device power on signal

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|**12**|**KEYRUN_2**|Device power on signal

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**Notes:**

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The **OUT_WORK **signal signals the operation of the device’s main program and is generated when the device is turned on.

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The **OUT_ERROR **signal indicates a critical device error or a low insulation resistance value.

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The **KEYRUN_1 **and **KEYRUN_2 **signals are equivalent and are intended to trigger the device’s power supply circuit. Can be connected to the V+ device supply line.

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=== X3 – header for positive line connection ===

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Receptacle Housing: Molex 436450200. Terminals: Molex 43030

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