iBMS LCD Interface User Manual
Contents
1. Interflexo Sistemas de Automa o e Controlo Unipessoal Lda IBMS LCD Interface User Manual ale Interflexo Sistemas de Automa o e Controlo Unipessoal Lda The iBMS LCD Interface was designed to display real time data logged data and to configure all the BMS operating parameters The package contains the following assembled items 111 x 57 x 22 mm ABS black box 16 x 2 character LCD with blue backlight 3 push buttons 1 2m cable SUB D 25 pin male connector Operation Turn BMS off Connect the SUB D 25 connector Turn BMS on Use the buttons to navigate through the desired pages Button functions Button 1 Normal mode Jumps to the next page Setup mode Increments the current field Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Button 2 Normal mode Resets the current page counters press during 2 seconds Setup mode Moves the cursor to the next field Button 3 Normal or Setup modes Toggles LCD backlighting During LED turn on also initializes the LCD for hot pluggin Button 1 Button 2 Enters setup mode press during 4 seconds Each time a button is pressed a short beep will be produced Startup screen If no events are logged the following pre charge screen will appear P Terminal voltage for dynamic pre charge PCB Serial Number Firmware version number CPU revision ID If events are logged a corresponding message will be displayed Logged2. e cut off delay detection 0 999ms High voltage cut off minimum release time 0 99s Charge MOSFET bi directional cut O 1 11 Interflexo Sistemas de Automa o e Controlo Unipessoal Lda MOSFET diagnostic mode enable 0 1 O Normal mode 1 MOSFET diagnostic mode Diagnostic mode disables both charge and discharge for MOSFET testing OEM mode enable 0 1 OEM mode disables Configuration changes Counters reset Event log reset Password display Password for OEM mode access 0 999 12
3. erage cycle depth Ah All the counters on this page are resettable Page 6 Total hours in discharge Total hours in charge All the counters on this page are resettable Page 7 Largest voltage sag cell number Largest voltage sag cell voltage V Maximum peak current 3ms average A Discharge MOSFETS state Charge MOSFETs state All the counters on the first line of this page are resettable Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Page 8 Maximum pack voltage V Maximum charge current A All the counters on this page are resettable Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Setup mode LCD Interface screens Cell chemistry 0 LiFePO4 1 Li lon Number of cells installed 4 24 Battery pack nominal capacity for fuel gage indicator calculations O 999Ah Current limit for overcurrent detection 5A 4 x Nominal current Low voltage cut off setting Low voltage cut off release setting Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Charger fine voltage matching Charger fine voltage matching Charger Regenerative braking maximum charge current 1A 1 1 x Nominal Current Bleed release delta voltage 25 99mV Ex For a 3 65V bleed voltage 3 650 0 035 3 615V bleed release voltage PWM output for full battery on fuel gage indicator Max value 498 87 duty PWM outpu
4. events Cell low voltage cut off with offending cell identification Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Overcurrent during discharge Current overload It protection Overcharge current includes regenerative breaking Short circuit Motor controller capacitors pre charge error MOSFET temperature sensor error optional High temperature shutdown error Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Normal mode LCD Interface screens Page 1 Discharge or charge current A Pack current capacity in Ah Resettable PCB temperature C Power consumption W Estimated energy consumption Wh Resettable on page 3 Current overload percentage Maximum current 333ms average A Maximum power W Maximum PCB temperature C Minimum pack voltage voltage sag V All the counters on this page are resettable Elapsed time since last BMS switch on HH MM SS Resettable Pack voltage V Lowest voltage cell number Lowest cell voltage V Pack average cell voltage V Page 4 14 segment vertical voltage bar graph for each cell Cells 1 to 16 Cells 17 to 24 appear on a subpage Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Cells in bleed state are shown with a darker pattern for reference A reset performed on this page clears last logged event error Page 5 Battery cycle count Av
5. t for low battery on fuel gage indicator Max value 498 87 duty Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Minimum pre charge time 0 5 30s Pre charge mode 0 1 2 O Strict mode Minimum configured Pre Charge time is honored Then it waits for P voltage to come down to less than 10 full pack voltage If P voltage stops decreasing a Pre Charge error is issued The circuit remains open 1 Relaxed mode Minimum configured Pre Charge time is honored Then it waits for P voltage to come down to less than 10 full pack voltage If P voltage stops decreasing Pre Charge is terminated and circuit is closed 2 Constant mode No P voltage evaluation is performed The circuit is always closed at the end of the configured Pre Charge time Short circuit current level detection 0 10 Short circuit current trigger levels for 3 x 2mQ sense resistor Level Trigger current A 72 108 144 181 217 153 289 325 361 S N O on A oo ro gt 10 Interflexo Sistemas de Automa o e Controlo Unipessoal Lda Short circuit current trigger levels for 3 x 1mQ sense resistor Level Trigger current A 126 190 253 316 379 442 505 569 632 SIS O N D on A oo ro gt Short circuit detection delay 50 500us Discharge minimum current O 100mA Low voltag
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