TECHNICAL FEATURES
BCU
Battery control unit for managing the entire system
The BCU includes:
· 4 outputs driven by the software with redundant hardware protections from the power relay control;
· 4 isolated inputs for checking the status of the BMS;
· 1 PWM output for charge control;
· LAN, USB, RS-485, CAN BUS interface;
· Isolated CAN BUS interface for communications with BMU module;
· 2 auxiliary outputs;
· 2 analog inputs with two channels for the automotive current sensor;
· 1 analogue auxiliary input;
· Data logger function.
| BCU | ||
| Dimensions (LxDxH) | 190x102x29,5 mm | … |
| Weight | 280 g | … |
| Case | Aluminium | … |
| Class Protection | IP20 | … |
| Working Temperature | -20 ÷ +75°C | … |
| Humidity | 5 – 95% relative humidity | … |
| Power supply | 10 ÷ 15Vdc | … |
| Interface | CAN-BUS/supply/enable logical input | … |
| Watchdog | software | … |
| Input | PNP 12Vdc | · X1 – Charge Presence · X2 – Auxiliary Input · X3 – Auxiliary Input · X4 – Auxiliary Input |
| Static Output | MOSFET bidir 12Vdc 300mA max | · Y5 – Multifunction Output · Y6 – Multifunction Output |
| PNP static outputs | 12Vdc 1A max | · Y1 – Run Relay · Y2 – Charge Relay · Y3 – Safety Relay · Y4 – Precharge Relay |
| PWM Output signal | push-pull/open collector 12Vdc | PWM battery charger interface |
| Current Input for sensors | 0-5V analog | ADC1 – ADC2 – Current Sensor ADC3 – Aux |
| Communication Interface | Ethernet 10/100 Mb/s USB slave RS-485 CAN-BUS |
Log parameters, log errors, log settings excange |
| Other functions | watch log parameters log errors graphics |
… |
BMU
Battery monitoring unit for temperature control
and the tension of each individual cell.
Each BMU module, depending on the model, can manage from a minimum of 4 cells up to a maximum of 12 cells. To manage a higher number of cells it is necessary to use more BMU modules. Each module is designed to be connected to the other giving rise to the modular BMS system.
Each BMU includes:
· Up to 12 cell voltage inputs;
· Up to 6 cell temperature sensor inputs;
· 2 temperature sensors, directly mounted on BMU;
· 1 output for supplying an external fan;
· 1 auxiliary output;
· Isolated CAN-BUS interface for communication with the BCU module;
· Redundant hardware protection circuit;
· Automatic CAN software update (through BCU software update).
| BMU | |
| Dimensions (DxPxH) | 190x111x29,5 mm |
| Weight | 320 g |
| Case | aluminum |
| Protection degree | IP20 |
| Working temperature | -20 ÷ +75°C |
| Humidity | 5 – 95% relative humidity |
| Power supply | directly from cells voltage |
| Minimum number of connected cells | 4 |
| Temperature sensors inside the module | 3 |
| Watchdog | 4 |
| Equalization resistors | up to 12 (depends on BMU) |
| Interface to BCU module | CAN-BUS/ interface power supply /abilitation output |
| Auxiliary output | 1 (300mA) |
| Passive cell balance | 1A Max |
| Number of inputs for cell temperatures | 6 |
| Temperature measurement range | -20 +80°C |
| Number of inputs for cell voltage | 12 |
| Measurement range of cell voltages | 0,8 – 4,4V |
PRODUCT DETAILS
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