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SmartGen HBMU100 BMS Slave Control Module

* All prices on this website are retail in USD on EXW incoterms


Product Overview:

HBCU100/HBMU100 Battery Management System (i.e. BMS) is a significant part of the storage battery cabinet, which can manage the battery system safely, realiably and efficiently. BMS collects the voltage and temperature of the single cell of the battery module (supporting lithium iron phosphate and ternary lithium) to calculate SOC, SOH, the max. single cell voltage/temperature, the min. single cell voltage/temperature, insulation resistance and other data. It not only realizes the passive balance of the cell, but also realizes the protections of over/under voltage, high/low temperature, charge/discharge overcurrent of the cell by the tertiary fault protection system and the control of external main circuit relay. BMS is compatible with protocol by PCS of different manufaturers to realize charge/discharge management of battery cluster.

HBCU100/HBMU100 Battery Management System is consisted of a master control module HBCU100, multiple slave control modules HBMU100, display module HMU8-BMS, insulation monitoring module, Hall current sensor and wiring harness. The master control module and slave control module communicate with each other via CANBUS. The whole system adopts mudular design, compact structure, high realiability, which can be widely used in various power levels of energy storage battery cabinet.


1. The operating status of BCU and BMU could be viewed by indicators;

2. Calculate the data of SOC/SOH of battery cluster, min. voltage/max. voltage of battery cells, average voltage, lowest temperature/highest temperature of battery cells;

3. With tertiary fault alarm protection function, which can alarm and protect the failures of over/under voltage of battery cells, high/low temperature, charge/discharge overcurrent, low insulation resistance and so on;

4. With master positive circuit relay control function and pre-charge circuit control function;

5. The passive balance current of the BMU module cell is 100 mA;

6. The available measured voltage range of battery cluster is (250~1000) VDC, up to 15 BUM modules online are supported at the same time;

7. BCU communicates with BMU via CAN, which has strong anti-interference capability;

8. The Bluetooth function make the battery cluster data monitored in real time by phone APP;

9. BCU module is equipped with RS485-1 and RS485-2 external communication interfaces. The “four remote” functions (remote control, remote measurement, remote communication and remote adjustment) can be realized by MODBUS protocol, and matches with PCS of multiple manufacturers;

10. With insulation resistance monitoring function (through RS485-3 interface of BCU module);

11. BCU and BMU modules adopt ABS/PC plastic shell, with high insulation, voltage resistance and flame retardant;

12. Fast firmware upgrade by CAN interface, eliminating unpacking and maintenance;

13. The real-time monitoring, parameter configuration and firmware upgrade of the whole system can be realized through HMU8-BMS display module.


1. Rated operating voltage 12/24VDC;

2. The LED lamps indicate the running status and alarm status of the module;

3. Can collect the total voltage and current of battery cluster, calculate the SOC and SOH data of battery cells;

4. Can collect the insulation resistance of positive and negative sides to ground of battery cluster (read the data of insulation monitoring module via RS485);

5. Collect the current of battery cluster by Hall current sensor;

6. Receive the voltage and temperature of the single cell of BMU module via the non-isolated CAN interface and calculate the data of max. and min voltage/ temperature, etc., control the BMU module for passive balance of the cell at the same time. BCU module firmware can also be upgraded via this interface;

7. Tertiary fault alarm protection can protect the over/under voltage, high/low temperature, charge/discharge overcurrent, low insulation resistance value, abnormal communication, high voltage collection fault, current collection fault, cell voltage collection fault, temperature collection fault, etc. The alarm protection action can be set as level-1 current drop (drop to 50%), level-2 current drop (drop to 80%), level-3 current drop (drop to 100%) and high voltage power-off;

8. With 3 isolated RS485 communication interfaces, among which RS4851 and RS485-2 are Modbus protocol and can communicate with HMU8-BMS display module and PCS, RS485-3 is used to communicate with insulation monitoring module;

9. With one ETHERNET interface to monitor the data of BCU module;

10. The Bluetooth function can monitor the data of BCU module in real-time by phone APP;

11. The 5 among of the 7 Aux. output ports are active outputs (default functions are master positive relay output, pre-charge output, module power control, alarm indicator output, running output), the other 2 are volts free output;

12. It has 3 input ports, 2 of which are Aux. input ports, the other 1 is fixed as bonding test  input of the master positive relay;

13. One-way temperature sensor to be connected to NTC 10K-3950 temperature sensor;

14. The event log can record 200 pieces of historical data circularly (the tertiary fault alarm content and details);

15. Data of current and accumulated charge/discharge energy (kWh) and battery capacity (Ah) can be collected;

16. Modular design, screw mounting, flame retardant ABC/PC enclosure with compact structure and easy installation.

Why SmartGen?

  • More than 200,000 units yearly
  •  19 years of successful business
  • More than 50 offices worldwide
  • Almost 200 technology patents
  • ISO, GM and CCSR certificates
  • High quality and low prices
  •  Wide variety of generator parts


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