SSD-100A

SSD-CANBUS BOURNS | Alldatasheet

Document overview

• Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
• PDF pages: 35

Technical content

Features

n Formerly a Riedon™ product n 24-bit isolated shunt current sensor with CANbus interface n 100 A (2 kA peak), 250 A (5 kA peak), or

500 A (10 kA peak)

n Dielectric withstand: 1500 VDC n Reinforced insulation according to IEC 60664 n 16-bit +150 °C microcontroller n 24-bit ADC with buffered analog inputs n ECC flash memory with autocorrect single bit errors n Internal and external CRC data error detection n Advanced non-linear temperature compensation n RoHS compliant* *RoHS Directive 2015/863, Mar 31, 2015 and Annex. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov Specifications Characteristic SSD-100A SSD-250A SSD-500A Nominal Current (A) ±100 ±250 ±500 Peak Current (No Clipping) +2 kA / -1 kA +5 kA / -2.5 kA +10 kA / -5 kA Shunt Resistance (µΩ) Excluding primary termination resistance 300 120 60 Initial Accuracy < ±0.1 % Linearity Over Current Range < ±0.1 % + 5 mA < ±0.1 % + 13 mA < ±0.1 % + 25 mA Bandwidth 5 kHz ADC Resolution 24 bits Speed (readings per second) up to 1100 rps (0.9 - 3300 ms per reading) Supply Voltage (5 - 60 VDC) @ 5.0 V, 55 mA typical @ 24 V, 15 mA typical DC Bus Voltage Range ±1200 VDC max. (10 M input impedance) Linearity Over Voltage Range < ±0.1 % + 25 mV CAN Interface CAN 2.0 A Speeds: 125 K, 250 K, 500 K (default), 1 M baud Long Term Stability < ±0.1 % 1000 hours 60 °C terminal temperature < ±0.3 % 1000 hours 115 °C terminal temperature Galvanic Isolation 1500 VDC 1000 VAC RMS (maximum continuous working voltage) Dielectric Strength 3500 VAC RMS 1 minute Operating Temperature -40 °C to +115 °C ambient -40 °C to +125 °C primary conductor (see derating curve on page 2) Storage Temperature -55 °C to +125 °C Additional Information Click these links for more information: PRODUCT TECHNICAL LIBRARY INVENTORY SAMPLES CONTACT Materials (RoHS Compliant) Current Terminal1 ....Nickel-plated copper Note:

1 Suitable for copper, copper-clad aluminum or

The SSD Series Digital Current Sensor must be used in a manner specified by this data sheet, otherwise the protection provided by the equipment may be impaired. The SSD Series should not be treated as a structural part of the installation and must be properly supported on both ends. How to Order SSD - 100A - C - T Model Amps 100A = 100 A 250A = 250 A 500A = 500 A Interface C = CANbus Option Blank = Standard -T = Internal 120 Ω Termination Resistor

Applications

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Connectors SSD Connector Mating Connector Molex Nano-Fit Part Number 4-Pin Male 4-Pin Female 1053071204 0-22 AWG Female Contacts* 1053002200 4-Pin TPA Strain Relief 1053251004 2-Pin Male Vbus 2-Pin Female 1053071202 20-22 AWG Female Contacts* 1053002200 2-Pin TPA Strain Relief 1053251002 * Use Gold (Au) plated contacts for 115 °C temperature rating. Shunt Supply Voltage Requirements Overcurrent vs. Time Derating Curve 450 400 350 300 250 200 150 100 0 6 12 18 24 30 36 42 48 54 60 CURRENT (mA) POWER (mW) SUPPLY VOLTAGE 4.8 TO 60 (VDC) CURRENT POWER 2100 1900 1700 1500 1300 1100 900 700 500 300 100 0.1 1 10 100 1000 10000 NOMINAL CURRENT (%) TIME (SECONDS) 120 100 0 25 50 75 100 115 125 150 RATED POWER (%) PRIMARY CONDUCTOR TEMPERATURE (°C) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Specifications (continued) Model Typical Noise (mA RMS) per ADC Reading Interval (ms), 1.25X Range, Zero Current SSD-100A 3 3 2 2 2 2 1 1 1 1 1 <1 <1 <1 <1 <1 SSD-250A 8 7 6 5 5 4 4 3 3 2 2 1 1 1 <1 <1 SSD-500A 15 13 12 11 10 9 7 7 5 4 3 2 2 1 1 1

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. A F C H DIA. 2 PLCS. D E G B 18.8 (.740) 2.5 (.098) Product Dimensions Model SSD-100A SSD-250A SSD-500A A 63.5 ± 0.5 (2.50 ± .020) B 84 ± 0.5 (3.307 ± .020) C 20 ± 0.5 (.787 ± .020) D 3 ± 0.5 (.118 ± .020) 4 ± 0.5 (.157 ± .020) E 16.4 ± 0.5 (.646 ± .020) 17.4 ± 0.5 (.685 ± .020) F 68.8 ± 0.5 (2.709 ± .020) G 30.8 ± 0.5 (1.213 ± .020) H 8.7 ± 0.5 (.343 ± .020) DIMENSIONS: MM (INCHES)

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Installation Electrical Wiring High Side Low Side Current Only ±1500 VDC MAX. +1500 VDC MAX LOAD

1500 VDC GALVANIC ISOLATION

+1500 VDC MAX LOAD ±1200 VDC +1200 VDC MAX. LOAD 10X MAX. NOMINAL PEAK CURRENT FIRMWARE v2.12 Use SETMODE Command to Invert Current and Voltage. Keep Positive DC Connection Short to Minimize Bus Voltage Drop Errors. +1200 VDC MAX LOAD Keep Negative DC Connection Short to Minimize Bus Voltage Drop Errors.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Connectors Connectors on both sides have same pinout. Either or both connectors can be used. CANbus +VDC CANL (PIN 1) GND CANH VBUS SENSE EITHER PIN Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Optional Base Mounting Fixtures Optional SS-CABLE Power / Serial Connection SSA-BASE SS-CABLE-1M SSA-BASE-1K 20.3 ± 0.2 (.799 ± .008) 4.8 ± 0.2 (.189 ± .008) DIA. 2 PLCS. 91.4 ± 0.5 (3.598 ± .020) 63.5 (2.50) (1.654) MAX. 27.9 ± 0.3 (1.098 ± .012) 20 ± 1 (.787 ± .039) 20.3 ± 0.2 (.799 ± .008) 4.8 ± 0.2 (.189 ± .008) DIA. 2 PLCS. 91.4 ± 0.5 (3.598 ± .020) 63.5 (2.50) (1.654) MAX. 19.1 ± 0.3 (.752 ± .012) 20 ± 1 (.787 ± .039) 47 ± 0.3 (1.850 ± .012) DIMENSIONS: MM (INCHES) DIMENSIONS: MM (INCHES)

• Robust design
• 5/16-18 Stainless Steel Hardware
• Torque Nuts:
• UL 94-V0 rated materials
• For all SSD models
• Color-coded 22 ga wire
• Two twisted pairs
• 1 meter standard length Serial Output White CANL / 485A Pin 1 Yellow CANH / 485B Pin 2 Black Ground Pin 3 Red +5 to 60 VDC Pin 4

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Optional SSD Connector Sets Optional SSD Serial Connection Kit SSD-CONN-SET SSD-SERKIT Standard Connector Set Includes Molex P/N Description 1 pc. 1053071204 4-Pin Female 1 pc. 1053071202 2-Pin Female 6 pcs. 1053002200 20-22 AWG Female Crimp Terminals 1 pc. 1053251004 4-Pin TPA 1 pc. 1053251002 2-Pin TPA Serial Connection Kit Includes Description 1 pc. SSD to DB-9F Serial Adapter 1 pc. 5 VDC USB Power Cable 1 pc. 4-Pin Programming Cable (1 m Length) The SSD serial connection kit simplifies the initial setup of the SSD Series Digital Current Sensor. It includes the necessary components to connect USB to CAN and USB to RS-485 serial adapters that have a 9-pin DB-9 male output connector. It includes jumpers to switch from RS-485 to CANbus and enable a termination resistor. USB to serial adapter not included. USB to RS-485 Adapter - From DTEK, StarTech and others with RS-485 on DB9 pins 1 and 2 and the ground on pin 5. Note: Some adapters have the 485A and 485B pins reversed. USB to CANbus adapter - From PEAK, Kvaser and others with CAN on DB9 pins 2 and 7 and the ground on pin 3. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Frequently Asked Questions Q: Is it necessary to install the SSD Series on the low side of the circuit? A: The SSD Series Digital Current Sensors is completely isolated, so it may be installed in either the low or high side of the circuit. Q: The sensor is only sending whole Coulombs and Watt- hours, how precise are these? A: Internally, micro-coulombs and micro-joules are counted; so very short ADC timing intervals and very low currents are accurately counted. Q: What is the best way to connect to the SSD Series terminals? A: Make sure connections are clean and well prepared. Bolts to be torqued to the hardware manufacturer’s recommendations. There should be sufficient clamping force to ensure proper connection. Overlap shown below should be taken as a minimum. Suitable for Copper, Copper-Clad Aluminum or Aluminum conductors. 20 mm BUSBAR OVERLAP HARDWARE: 5/16-18 GRADE 5 STEEL or M8x1.25 CLASS 8.8 STEEL TORQUE: 11-13 ft-lb, 15-17.6 N-M Q: What is the best way to cool the SSD Series Digital Current Sensor? A: A majority of the heat generated by the SSD Series is dissipated through the primary conductors. Care should be taken to ensure that the primary conductors are sized appropriately given expected amperage and conductor length. Bourns recommends a 115 °C maximum conductor temperature at rated current. If there are thermal concerns, oversizing the conductors will help minimize the operating temperature of the Digital Current Sensor. Q: When should I use the SSD version with the internal 120 Ω termination resistor (-T)? A: The -T version includes a built-in 120 Ω resistor between CANH/CANL or 485A/485B. Typical RS485 or CANbus networks require termination at two endpoints. Use the -T version accordingly. Avoid using more than two termination points to ensure proper communication. Q: What size wire is suitable for the SSD Series? Copper Conductor Ampacity Ratings (continuous) mm2 AWG Amps (75 °C) mm2 AWG Amps (75 °C) 13.3 6 65 107 0000 (4/0) 230 21.2 4 85 127 250 MCM 255 33.6 2 115 152 300 MCM 285 42.4 1 130 203 400 MCM 335 54 0 (1/0) 150 253 500 MCM 380 67 00 (2/0) 175 380 750 MCM 475 85 000 (3/0) 200 887 1500 MCM 625

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual SSD CAN IDs for Settings (Defaults) Default Baud 500 kbp/s SET COMMAND ID 0x3FA Motorola Used to Write values GET COMMAND ID 0x3FB Motorola Used to Read values REPLY ID 0x3FC Motorola Returned Data from Get Command CAN IDs for Sensor Readings (Defaults) CURRENT 0x3F1 Intel Sensor Current TEMPERATURE 0x3F2 Intel Sensor Temperature VBUS 0x3F3 Intel Bus Voltage COULOMB 0x3F4 Intel Coulomb Counter POWER 0x3F5 Intel Power ENERGY 0x3F6 Intel Energy Counter ERRORS/ALERT 0x3F7 Intel Errors or Alerts Intel (Data Byte 0 = LSB) data format for Sensor Readings Motorola (Data Byte 0 = MSB) data format for all Settings to improve legibility with setup Name Size Units Range Format Current Signed int32 1 mA ± 20 X Nominal Intel Temperature Signed int32 0.1 °C -40 °C to +125 °C* Intel Bus Voltage (Vbus) Signed int32 1 mV ± 1200 VDC Intel Coulomb Signed int64 1C (A•s) ± 260 Intel Power Unsigned int32 0.1 W 0 to 232 Intel Energy Unsigned int64 W•h 0 to 260 Intel GET ALL ENABLED 0x00 - Read Only GET CURRENT 0x01 - Read Only GET TEMPERATURE 0x02 - Read Only GET VBUS 0x03 - Read Only GET COULOMB 0x04 - Read Only GET POWER 0x05 - Read Only GET ENERGY 0x06 - Read Only GET ERRORS 0x07 - Read Only RESET COMMAND 0x10 - Write Only SET CAN IDS 0x11 - Write Only SETMODE 0x12 BAUDRATE 0x14 READING DELAY 0x16 A2D CONFIG 0x17 CURRENT UNDER LIMIT 0x18 CURRENT OVER LIMIT 0x19 TEMP OVER LIMIT 0x1A VBUS UNDER LIMIT 0x1B VBUS OVER LIMIT 0x1C POWER OVER LIMIT 0x1D SHUNT NANO-OHM 0x1E CURRENT ZERO OFFSET 0x21 VBUS FACTOR 0x22 VBUS ZERO OFFSET 0x23 TEMP OFFSET 0x24 T0 TEMP COMPENSATION 0x25 - Read Only T1 TEMP COMPENSATION 0x26 - Read Only T2 TEMP COMPENSATION 0x27 - Read Only RESET CAUSES 0x28 - Read Only FIRMWARE VERSION 0x30 - Read Only SERIAL NUMBER 0x31 - Read Only COMMAND LIST Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x00 – Command GET ALL ENABLED – Read Only Used to get all enabled readings in the SETMODE command. Current, Temperature, Vbus, etc… Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x00 RECEIVE Multiple replies from all enabled readings in the SETMODE Command 0x01 – Command GET CURRENT – Read Only Used to get the last sensor current reading in milliamps. Reply is 4 bytes from CAN ID 0x3F1 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x01 RECEIVE 0x3F1 0x04 0xXX 0xXX 0xXX 0xXX 0x02 – Command GET TEMPERATURE – Read Only Used to get the last sensor temperature reading in 0.1 centigrade. Reply is 4 bytes from CAN ID 0x3F2 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x02 RECEIVE 0x3F2 0x04 0xXX 0xXX 0xXX 0xXX 0x03 – Command GET VBUS – Read Only Used to get the last external bus voltage reading in milli-Volts. Reply is 4 bytes from CAN ID 0x3F3 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x03 RECEIVE 0x3F3 0x04 0xXX 0xXX 0xXX 0xXX

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x04 – Command GET COULOMB – Read / Write Used to get or set the last coulomb count which is continuously updated with current. Note: The coulomb reading can overflow! It is up to the user to check if very large values (> ±260) are expected. See 0x07 command to read overflow bit. Reply is 8 bytes from CAN ID 0x3F4 (default) - Intel Format (Data Byte 0 = LSB) Note: Writing a new value is limited to signed int32 values. Example: Write 500,000 (0x7A120) to coulomb counter Write Message Message ID Length Data Fields SEND 0x3FA 0x05 0x04 0x00 0x07 0xA1 0x20 RECEIVE (none) Read Message Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x04 RECEIVE (int64) 0x3F4 0x08 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX 0x05 – Command GET POWER – Read Only Used to get the last power reading in 0.1 watts. Reply is 4 bytes from CAN ID 0x3F5 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x05 RECEIVE 0x3F5 0x04 0xXX 0xXX 0xXX 0xXX 0x06 – Command GET ENERGY – Read Only Used to get the last energy count in Watt-hours (Wh) which is continuously updated. Note: The energy reading can overflow! It is up to the user to check if very large values (> 260) are expected. See 0x07 command to read overflow bit. Reply is 8 bytes from CAN ID 0x3F6 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x06 RECEIVE (int64) 0x3F6 0x08 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX 0xXX Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x07 – Command GET ERRORS/Alerts – Read Only Used to get any errors or alerts which are continuously updated. Reply is 2 bytes from CAN ID 0x3F7 (default) - Intel Format (Data Byte 0 = LSB) Message ID Length Data Fields (LSB First) SEND 0x3FB 0x01 0x07 RECEIVE 0x3F7 0x02 0xXX 0xXX Returned ERROR / ALERT bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 N/A 1 = ECC Single Bit 1 = EEPROM Corrupt 1 = EEPROM R/W 1 = ADC Initialization 1 = ADC CRC Read 1 = Energy Overflow 1 = Coulomb Overflow 1 = Power Over Limit 1 = Vbus Over Limit 1 = Vbus Under Limit 1 = Temp Over Limit 1 = Current Over Limit 1 = Current Under Limit 1 = Current Range Over 1 = Vbus Range Over Bit0 Vbus Range Over – Bus Voltage exceeds the MAX voltage for the range selected, see 0X17 command. Bit1 Current Range Over – Peak current exceeded the range selected, see 0X17 command. Bit2 Current Under Limit – Current is below the limit set, see 0X18 command. Bit3 Current Over Limit – Current is above the limit set, see 0X19 command. Bit4 Temp Over Limit – Temperature is above +125 °C or the limit set, see 0X1A command. Bit5 Vbus Under Limit – Bus Voltage is below the limit set, see 0X1B command. Bit6 Vbus Over Limit – Bus Voltage is above the limit set, see 0X1C command. Bit7 Power Over Limit – Power is above the limit set, see 0X1D command. Bit8 Coulomb Overflow – Coulombs have exceeded the range of ± 247. Bit9 Energy Overflow – Energy has exceeded 248. Bit10 ADC CRC Read – The ADC’s CRC doesn’t match the calculated CRC of the returned data. Bit11 ADC Initialization – The ADC’s initialized registers don’t match the written values. Bit12 EEPROM R/W – Error reading or writing to the internal EEPROM. Bit13 EEPROM Corrupt – The EEPROM CRC doesn’t match saved value. Bit14 ECC Single Bit Error – Flash Memory had an Auto-Correctable Error.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns 0x10 – Command RESET COMMAND – Write Only Rebooting will restore previously saved settings if current settings are not saved. This will prevent baud rate or address errors since you will need to connect with the new values before you can issue the save to EEPROM command. 0x0001 – Reset Coulomb and Energy counters 0x0004 – Reset Errors 0x000F – Save settings to EEPROM 0X00AA – Reset settings to defaults (command must be sent 3X in a row) Example: To save settings to EEPROM Message ID Length Data Fields SEND 0x3FA 0x03 0x10 0x00 0x0F RECEIVE (none) SSD Interface Manual (continued) 0x11 – Command SET IDs – Write Only Used to change the default SSD CAN bus IDs to different ID numbers. Example: To change the default CURRENT CAN ID from 0x03F1 (1009) to 0x04B0 (1200) Message ID Length Data Fields SEND 0x3FA 0x05 0x11 0x03 0xF1 0x04 0xB0 RECEIVE ( none ) NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x12 – Command SETMODE – Read / Write Used to change the sensor options. Bit0 Invert Current – This will flip the Current and Coulomb signs if necessary. Bit1 Autorange – Sensor will switch to high range if reading exceeds 85 % of standard range. It will switch back when reading drops to below 50 % of standard range. See A2D CONFIG for more info. Bit2 Modbus Enable – Not used on CANbus version. Bit3 Auto Reset Errors – Self clears errors once sent or read, the error will re-enable if it persists. Bit4 Invert Voltage – Use for Highside Voltage Measurements. Bit7 Send on Conversion – The sensor will send the latest data as soon as available per A2D CONFIG. Bit8 Autosend – The sensor will send readings at the Read Delay timer interval unless Bit7 is enabled. Bit9 to Bit15 – Enable the readings to be automatically sent. Otherwise read them manually. SETMODE Configuration Bytes HEXCODE: 0000 Check boxes below to calculate HEX value 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 = Send Errors/Alerts 1 = Send Energy Cnt 1 = Send Power 1 = Send Coulomb Cnt 1 = Send Vbus 1 = Send Temperature 1 = Send Current 1 = Autosend 1 = Send on Conversion N/A N/A 1 = Invert Voltage 1 = Auto Reset Errors/Alerts Reserved 1 = Autorange 1 = Invert Current

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x12 (Continued) - Command SETMODE - Read / Write SETMODE default is: 0x0002. Example: To enable Autosend, Send Current, Send Errors, Auto Reset Errors (0x8308) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x12 0x83 0x08 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x12 RECEIVE 0x3FC 0x03 0x12 0x83 0x08 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0x14 – Command BAUD RATE – Read / Write Used to set the SSD CAN bus Baud Rate. Values other than the following are ignored. HEX Value Baud Rate (kbit/s) 0x0009 125 0x000A 250 0x000B 500 0x000C 1000 Notes: Baud rate is changed immediately so you may get an error after change. Connect using new baud rate and use Command RESET MODE (0x10 0x000F) to save current settings to EEPROM. If unable to connect, reboot to restore the previous setting. BAUD RATE is defaulted to: 0x000B (500 kb/s). Example: To set Baud Rate to 250 kbps Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x14 0x00 0x0A RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x14 RECEIVE 0x3FC 0x03 0x14 0x00 0x0A

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x16 – Command SET READING DELAY - Read / Write Used to set the delay between readings automatically sent to the CANbus. Autosend must be enabled (see SETMODE bit8). Note: If the Conversion Time is greater than the reading delay, the sensor will send the same value until the next set of readings is available. For readings faster than 5 ms use SETMODE Bit7 Send on Conversion. This will send the data as soon as it’s available. Delay value from 5 to 60000 milli-seconds. READING DELAY default is: 0x03E8 (1 s). Example: To set delay to 1 second between readings, 1 s = 1000 = 0x03E8 Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x16 0x03 0xE8 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x16 RECEIVE 0x3FC 0x03 0x16 0x03 0xE8 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Delay (ms) HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0x17 – Command A2D CONFIG – Read / Write A2D Configuration Register HEXCODE: 0000 Check boxes below to calculate HEX value N/A Bus Voltage MAX Voltage N/A High Range MAX Current N/A Normal Range MAX Current Reading Interval Time (ms) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0

1200 VDC

0 0 0 0 0.9 0 0 0 1 1.6 0 0 1

600 VDC

0 0 1 0 3.2 0 0 1 1 4.8 0 1 0

300 VDC

0 1 0 0 6.4 0 1 0 1 7.2 0 1 1

150 VDC

75 VDC

2.5X Nominal 1 0 0 2.5X Nominal 1 0 0 0 26 1 0 0 1 51 1 0 1

37.5 VDC

1.25X Nominal 1 0 1 1.25X Nominal 1 0 1 0 102 1 0 1 1 205 1 1 0

18.7 VDC

0.63X Nominal 1 1 0 0.63X Nominal 1 1 0 0 410 1 1 0 1 820 1 1 1

9.37 VDC

0.31X Nominal 1 1 1 0.31X Nominal 1 1 1 0 1640 1 1 1 1 3280

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x17 (Continued) – Command A2D CONFIG – Read / Write Set the bits required for the application. Notes: High Range must be greater than or equal to the Normal Range. If SETMODE Bit1 (Autorange) is not set High Range will be ignored. If it is set, the sensor will automaitcally switch between the two ranges specified when necessary. Reading intervals 13 ms and below utilize hardware averaging, 26 ms and above start using software averaging with a 13 ms hardware interval time. If it is necessary to capture and report fast current spikes, use fast reading intervals otherwise they will be averaged out. Set the Vbus MAX voltage to the highest peak voltage expected. If using the sensor on the highside with voltage measuring, use 300 VDC range or lower. A2D CONFIG default is: 0x035D. Example: Vbus Max Voltage 1200 VDC, High Range 5X Nominal, Normal Range 1.25X Nominal, Reading Interval 820 ms (0x035D) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x17 0x03 0x5D RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x17 RECEIVE 0x3FC 0x03 0x17 0x03 0x5D NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x18 – Command CURRENT UNDER LIMIT – Read / Write Used to configure the optional lower limit for current readings. Currents below this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert. Value is a signed Int16 in amps. Default CURRENT UNDER LIMIT: 0x0000 (Disabled). Example: Set the lower limit to 25 amps (0x0019) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x18 0x00 0x19 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x18 RECEIVE 0x3FC 0x03 0x18 0x00 0x19 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Amps HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x19 – Command CURRENT OVER LIMIT – Read / Write Used to configure the optional upper limit for current readings. Currents above this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert. Value is a signed Int16 in amps. Default CURRENT OVER LIMIT: 0x0000 (Disabled). Example: Set the upper limit to 620 amps (0x026C) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x19 0x02 0x6C RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x19 RECEIVE 0x3FC 0x03 0x19 0x02 0x6C NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Amps HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x1A 0x02 0x5A RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x1A RECEIVE 0x3FC 0x03 0x1A 0x00 0x5A NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x1A – Command TEMP OVER LIMIT – Read / Write Used to configure the temperature limit for the error. Temperatures above this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. Value is an unsigned Int16 in centigrade. Default TEMP OVER LIMIT: 125 °C (0x007D, Cannot Disable) Valid Range: 0 °C to +125 °C (MAX) Example: Set the upper limit to 90 °C (0x005A) Temp. (°C) HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x1B – Command VBUS UNDER LIMIT – Read / Write Used to configure the optional lower limit for the bus voltage readings. Voltages below this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert. Value is a signed Int16 in volts. Default VBUS UNDER LIMIT: 0x0000 (Disabled). Example: Set the lower limit to 29 Volts (0x001D) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x1B 0x00 0x1D RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x1B RECEIVE 0x3FC 0x03 0x1B 0x00 0x1D NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Volts HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x1C 0x00 0x46 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x1C RECEIVE 0x3FC 0x03 0x1C 0x00 0x46 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x1C – Command VBUS OVER LIMIT - Read / Write Used to configure the optional upper limit for bus voltage readings. Voltages above this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert. Value is a signed Int16 in Volts. Default VBUS OVER LIMIT: 0x0000 (Disabled). Example: Set the upper limit to 70 Volts (0x0046) Volts HEX Value CONVERT0 0000

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x1D – Command POWER OVER LIMIT – Read / Write Used to configure the optional upper limit for power readings. Power above this value will cause an error that can be read with the 0x07 GET ERRORS command if errors aren’t automatically sent. A zero value disables this alert, non-zero values enable alert. Value is an unsigned Int32 in Watts. Default POWER OVER LIMIT: 0x00000000 (Disabled). Example: Set the upper limit to 22000 Watts (0x000055F0) Power (W) HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x05 0x1D 0x00 0x00 0x55 0xF0 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x1D RECEIVE 0x3FC 0x05 0x1D 0x00 0x00 0x55 0xF0 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 00000000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Nano-Ohms HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x05 0x1E 0x00 0x04 0x94 0x7C RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x1E RECEIVE 0x3FC 0x05 0x1E 0x00 0x04 0x94 0x7C NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 00000000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x1E – Command SHUNT NANO-OHMS - Read / Write Used to override the resistance of the Model SSD Series from the factory calibration. This is typically not necessary and the correct equipment is essential to properly set it. Value can be reset back to factory defaults. Value is an Int32 Example: To set SHUNT NANO-OHMS to 300156 (0x0004947C) nano-ohms

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x21 – Command CURRENT ZERO OFFSET – Read / Write Used to override the sensor zero offset current. Value can be reset back to factory defaults. Value is a signed Int16. Example: To set CURRENT OFFSET to +8 (0x0008) mA. Offset (mA) HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x21 0x00 0x08 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x21 RECEIVE 0x3FC 0x03 0x21 0x00 0x08 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 0000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Vbus Factor HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x22 0x27 0x27 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x22 RECEIVE 0x3FC 0x03 0x22 0x27 0x27 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 0000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x22 – Command VBUS FACTOR – Read / Write Used to adjust the Bus Voltage reading from the factory calibration. This is typically not necessary and the correct equipment is essential to properly set it. See reset command to set the value back to factory default. Voltage is calibrated at 25 °C. Power and Energy values are scaled appropriately. Value is an Int16. Value is divided by 10000 in firmware to create the factor. Example: To set VBUS FACTOR to 10023 (0x2727)

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x23 – Command VBUS ZERO OFFSET – Read / Write Used to override the bus voltage zero offset. Value can be reset back to factory defaults. Value is a signed Int16. Example: To set VBUS OFFSET to -6 (0xFFF9) mV. Vbus Offset (mV) HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x23 0xFF 0xF9 RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x23 RECEIVE 0x3FC 0x03 0x23 0xFF 0xF9 NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 0000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Temp. Offset (0.1 °C) HEX Value CONVERT Write Message Message ID Length Data Fields SEND 0x3FA 0x03 0x24 0xFF 0xEA RECEIVE (none) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x24 RECEIVE 0x3FC 0x03 0x24 0xFF 0xEA NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. 0 0000 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x24 – Command TEMP OFFSET – Read / Write Used to adjust the Temperature reading from the factory calibration. This is typically not necessary and the correct equipment is essential to properly set it. See reset command to set the value back to factory default. Value is an Signed Int16. Example: To set TEMP OFFSET to -2.2 °C send -22 (0xFFEA)

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x25 – Command GET T0 TEMPERATURE COMPENSATION – Read Only 0x26 – Command GET T1 TEMPERATURE COMPENSATION – Read Only 0x27 – Command GET T2 TEMPERATURE COMPENSATION – Read Only Used to get the factory calibrated settings for the temperature compensation constants. T0 - unsigned int16 T1 - signed int32 T2 - signed int32 Example: The following shows T1 compensation constant of FFBE E23D (-4267459) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x26 RECEIVE 0x3FC 0x05 0x26 0xFF 0xBE 0xE2 0x3D NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x28 RECEIVE 0x3FC 0x03 0x28 0x01 0x40 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 0x28 – Command GET RESET CAUSES – Read Only Used to get the reasons for the last four SSD sensor restarts. Example: The following shows abnormal restarts (0x0140) 0x0140 4th Last Reason: Normal 3rd Last Reason: Brown-out 2nd Last Reason: Watchdog Last Reason: Normal Reason Codes 0 - Normal Power-on Reset 1 - Brown-out Reset 4 - Watchdog Timer Time-Out Reset 6 - Software RESET Instruction 7 - Master Clear Pin Reset 9 - Configuration Mismatch Reset E - Illegal Condition Device Reset - Illegal Opcode Reset - Uninitialized W Register Reset - Security Reset F - Trap Conflict Reset

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) 0x30 – Command GET FIRMWARE VERSION – Read Only Used to get the SSD firmware version. Data Returned: Version (byte) and subversion (byte) Example: The following shows version (v1.2) Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x30 RECEIVE 0x3FC 0x03 0x30 0x01 0x02 Read Message Message ID Length Data Fields SEND 0x3FB 0x01 0x31 RECEIVE 0x3FC 0x05 0x31 0x00 0x00 0x30 0x39 0x31 – Command GET SERIAL NUMBER – Read Only Used to get the SSD serial number. Example: The following shows SN:00012345 (0x3039) NOTE: No settings are saved until a save settings to EEPROM command is issued! Power cycling will restore previous settings. See command 0x10 0x000F. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SSD Series – Riedon™ Digital Current Sensor with CANbus Interface by Bourns SSD Interface Manual (continued) Firmware Revisions- v2.10 Added Invert Bus V oltage bit to SETMODE command for highside sensor mounting. v2.11 Updated internal ADC settings to reduce noise. This reduces some of the fixed ADC reading intervals. Fixed reading Coulombs and Energy manually after changing CAN IDs. v2.12 Bus Voltage is now signed int32, ±1200 VDC. Current and Voltage Under and Over limits are now signed int16. Can now write Coulomb value to sensor and the sensor will count from there. Get all enabled readings changed from register 0x08 to 0x00. Americas: Tel: +1 951-781-5500 • Email: americus@bourns.com Mexico: Tel: +52-614-478-0400 • Email: mexicus@bourns.com Asia: Tel: +886-2-2562-4117 • Email: asiacus@bourns.com EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com www.bourns.com REV. 05/25 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

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