High Voltage – Isolated – CAN

The isolated high-voltage sensor developed by GOcontroll enables accurate monitoring of battery packs and fuel cell systems across a wide range of applications. Designed with a fully isolated measurement interface, it ensures safe and reliable voltage acquisition even in demanding environments. Measured values are transmitted via CAN, allowing seamless integration into control systems and diagnostics platforms. To fit different system architectures, the sensor is available in three variants, each tailored to a specific voltage range.

Order now for €320,-
Isolated HV CAN sensor

Applications

  • Fuel cell voltage measurement

  • Battery pack measurement

  • DC-DC voltage measurement

  • Isolated grid voltage measurement

  • Super cap voltage measurement

  • High voltage bus monitoring

Features

  • Measures voltages up to 550 VDC

  • Fully isolated measurement

  • 12 and 24 VDC powered applications

  • CAN communication enbaled

  • Bootloader to configure communication parameters

  • Windows based configuration tool

Technical specifications.

The technical specifications are listed in the table below.

Measuring range Min Nom Max Unit
Supply voltage range 8 28 Volt
Power consumption 10 15 20 mA
Measurement range config A (Full scale) 0 – 80V VDC
Measurement range config B (Full scale) 0 – 250V VDC
Measurement range config C (Full scale) 0 – 550V VDC
Measurement impedance 0.1 1.2 GOhm
CAN 2.0 B
CAN bitrate (Configurable with tool) 125 1000 kbps
Message rate (Configurable with tool) 10 1000 ms
Measurement resolution 12 bit

Sensor pinout

The isolated high voltage CAN sensor is equipped with two TE DEUTSCH connectors. The two pin connector is used to connect the source to be measured. The four pin connector hosts the low voltage supply and CAN interface to the high voltage sensor.

DT15 – 2P

Pin Function
1 Ground (-) connection of source to measure
2 Possitive (+) connection of source to measure

DT15 – 4P

Pin Function
1 Supply (+) voltage for sensor logic
2 Ground  (-) for sensor logic
3 CAN high
4 CAN low

CAN communication

CAN communication can be configured with the CAN configuration tool in combination with Peak CAN dongle. By default the CAN communication is set to:

Parameter Configuration
Standard CAN ID 0x411 (Can be changed with configuration tool)
Sample rate 100 ms (Can be changed with configuration tool)
Data length code (DLC) 8 bytes
Byte 1 MSB (32 bit) of measurement (in milliVolt)
Byte 2 measurement (in milliVolt)
Byte 3 measurement (in milliVolt)
Byte 4 LSB (32 bit) of measurement (in milliVolt)
Byte 5 0
Byte 6 0
Byte 7 0
Byte 8 Rolling counter