3.1 General information

Version 8.3 by Admin on 2025/01/30 13:13

Configuration

General information

List of input signals

Here is the list of available input signals of BMS Main 3.

NameAbbr.DescriptionCompabilityCANopen SDOModbus
Mini S / MiniMain 2.1Main 3
Battery cover   a signal from the battery cover;YesYesYes  
Charger connected   a signal indicating that charger is connected;YesYesYes  
Power up/down request   a request to power down the device;YesYesYes  
Inhibit charging   a command to open the charging contactor;YesYesYes  
Inhibit discharging   a command to open the discharging contactor;YesYesYes  
CH contactor feedback   a signal from charging contactor feedback loop;YesYesYes  
DCH contactor feedback   a signal from discharging contactor feedback loop;YesYesYes  
Insulation status   a signal from an insulation monitoring device;YesYesYes  
Charge request   a request to close the charging contactor;YesYesYes  
Discharge request   a request to close the discharging contactor;YesYesYes  
PCH contactor feedback   a signal from precharging contactor feedback loop;YesYesYes  
CH/DCH contactor feedback   a signal from charging/discharging contactor feedback loop;YesYesYes  
Main contactor feedback   a signal from main contactor feedback loop;YesYesYes  
Interlock   a signal from interlock loop;YesYesYes  
Fuse 1, Fuse 2, Fuse 3   signals from fuses;YesYesYes  
Circuit breaker status   status of protection disconnector;YesYesYes  
Balancing request   a request to balance the cells;YesYesYes  
Close Main contactor   a request to close the main contactor;YesYesYes  
Close External 1   a request to close the External 1 discrete output (if assigned).YesYesYes  

List of internal states

Here is the list of available internal states of BMS Main 3.

NameAbbr.DescriptionCompabilityCANopen SDOModbus
Mini S / MiniMain 2.1Main 3
Low SOC   a signal corresponding the low SOC of the battery;YesYesYes  
High charging current   charging current is high;YesYesYes  
Main contactor   state of the main contactor;YesYesYes  
Charging   state of the charging contactor;YesYesYes  
Allow charging   a signal for a charger to start charging;YesYesYes  
Charging current present   the presence of the charging current;YesYesYes  
Precharging   state of the precharging contactor;YesYesYes  
Discharging   state of the discharging contactor;YesYesYes  
Discharging current present   the presence of the discharging current;YesYesYes  
Discharging (AUX)   state of the auxiliary discharging contactor;YesYesYes  
Power down ACK   an acknowledgement of BMS power down. Acknowledgement is outputted when the charge and discharge contactors have been opened on power down request;YesYesYes  
Charging/discharging state of the charging/discharging contactor;YesYesYes  
Heater   a command to turn on a heater;YesYesYes  
Cooler   a command to turn on a cooler;YesYesYes  
Balancing 1   balancing the first series of cells;YesYesYes  
Balancing 2   balancing the second series of cells;YesYesYes  
Ready to charge   the battery is ready to be charged;YesYesYes  
Ready to discharge   the battery is ready to be discharged;YesYesYes  
Power up   an indication of BMS power status;YesYesYes  
General error   state of the configurable (general) error;YesYesYes  
External 1   a signal that activates by the remote request.YesYesYes  

List of errors

Here is the list of error of BMS Main 3.

Name Abbr.DescriptionCompability Is a Critical error?  
        
OvercurrentOC Overcurrent protection    
UndervoltageUV Undervoltage protection    
OvervoltageOV Overvoltage protection    
Low temperature (DCH) LDT temperature is too low for discharging;Low temperature protection    
High temperature (DCH) HDT temperature is too high for discharging;High temperature protection    
Battery cover error BC battery cover is open;Battery cover protection Yes  
High humidity HH humidity of the battery is increased;High humidity protection    
Water WA there is water in the battery enclosure;Water protection Yes  
High Logic temperature LHT at least one of the Logic devices is overheated;Logic high temperature protection    
Logic offline LOF at least one of the Logic devices is offline;Logic offline protection Yes  
Critical errorCRE Critical error    
Crown error CRO connection with a Crown forklift is lost;     
Cell count error CEL number of cells does not match the specified value;Cell count protection Yes  
HYG offline HYG connection with a HYG forklift is lost;HYG Class I-III truck    
Need acknowledge   there is an unacknowledged error in Error journal;Error journal    
Combilift offline   connection with a Combilift forklift is lost;Combilift truck    
Short circuit  Short circuit protection    
High contactor temperature  High contactor temperature protection    
ADC error   current cannot be measured;  Yes  
Current sensor error   error in the current sensor circuit;Current sensor protection Yes  
CH contactor cycles error   switching frequency of the charging contactor is too high;Charge contactor cycles protection    
DCH contactor cycles error   switching frequency of the discharging contactor is too high;Discharge contactor cycles protection    
Shunt offline   connection with the shunt current sensor is lost;Shunt sensor (CAN bus) Yes  
Shunt error   internal error of the shunt current sensor;Shunt sensor (CAN bus) Yes  
WDT reset   watchdog timer reset the device;WDT reset protection Yes  
No temperature sensors   the device has no temperature sensors connected;Temperature sensors protection Yes  
Temperature sensor is shorted   some temperature sensors are shorted;Temperature sensors protection Yes  
Spirit offline   connection with a Spirit forklift is lost;Spirit AGV truck    
Low temperature (CH)   temperature is too low for charging;Low temperature protection    
High temperature (CH)   temperature is too high for charging;High temperature protection    
Unallowable charging   charging the battery through the discharging contactor;Unallowable charging protection    
Stuck contactor  Stuck contactor protection Yes  
CH contactor feedback error   the control signals for the charging contactor and the contactor feedback differ;Contactor feedback protection Yes  
DCH contactor feedback error   the control signals for the discharging contactor and the contactor feedback differ;Contactor feedback protection Yes  
Insulation fault;  Insulation protection Yes  
PCH contactor feedback error   the control signals for the precharging contactor and the contactor feedback differ;Contactor feedback protection Yes  
CH/DCH contactor feedback error   the control signals for the charging/discharging contactor and the contactor feedback differ;Contactor feedback protection Yes  
Main contactor feedback error   the control signals for the main contactor and the contactor feedback differ;Contactor feedback protection Yes  
General error  General error    
High voltage fault   failure of high voltage measuring circuits;High voltage controller Yes  
Power switch error   short circuit in contactor coil control circuit or power switch overheating;  Yes  
HVIL error   breakage of high-voltage interlock current loop;HVIL protection Yes  
Precharge error   capacitive load pre-charge process did not end during the estimated time;Precharge controller    
Power fault   external devices power supply error: current sensors, HVIL, BMS Logic or CAN2 (int) bus powered devices;  Yes  
Current limit error   charging or discharging current is more than limit calculated by Charge map or Discharge map.Charge current limit protection, Discharge current limit protection