Changes for page 3.3 Control
Last modified by Admin on 2026/04/30 15:56
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... ... @@ -15,7 +15,7 @@ 15 15 * **Cell capacity** – nominal capacity of cells, Ah; 16 16 * **Cell resistance** – nominal (maximum) internal resistance of the cells, Ohm; 17 17 * **Connection of cells:** 18 -** **Serial **– all cells are connected in series in a single string .18 +** **Serial **– all cells are connected in series in a single string; 19 19 ** **Parallel-Serial **– cells are grouped in parallel and serial items; 20 20 * **Parallel-Serial: Number of Logic devices in a chain**; 21 21 * **Parallel-Serial: Number of parallel chains in a block**; ... ... @@ -29,7 +29,7 @@ 29 29 ** **Summation of cell voltages** – the overall voltage is calculated as on sum of all cells in the battery; 30 30 ** **Using voltage before contactors** – the overall voltage is estimated as voltage before contactors measured by BMS. 31 31 32 -The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be estimated asa fraction of overall currentaccordingly to the number of chains in a block.32 +The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be calculated as overall string current divided by number of chains in a block. 33 33 34 34 The values **“Capacity”** and **“Resistance”** are used to calculate the SOC of cells and the battery. 35 35 ... ... @@ -39,7 +39,7 @@ 39 39 40 40 === SOC estimation === 41 41 42 -The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell ,and then the overallbatterySOC, byusing following algorithms:42 +The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell by using following algorithms: 43 43 44 44 The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C). 45 45 ... ... @@ -94,11 +94,11 @@ 94 94 95 95 === SOH estimation === 96 96 97 -The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms: 97 +The BMS Main 3 / BMS Main 2R device calculates the state of health of the battery (SOH) using two algorithms: 98 98 99 99 In **"By effective capacity" **mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge. 100 100 101 -In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function.101 +In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function. 102 102 103 103 To configure parameters for battery state of health calculation, select the "Control → SOH correction" section: 104 104 ... ... @@ -373,9 +373,9 @@ 373 373 374 374 (% class="box infomessage" %) 375 375 ((( 376 -**Note:** The "Allow charging" signal activates under two independent conditions: 376 +**Note:** The **"Allow charging"** signal activates under two independent conditions: 377 377 1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 378 -2) the "Delay before recharging" time has passed since the opening of theallow chargingcontactor.378 +2) the "Delay before recharging" time has passed since the clearing of the "Allow charging" signal. 379 379 ))) 380 380 381 381 === Discharging status === ... ... @@ -402,9 +402,9 @@ 402 402 403 403 The BMS Main 3 / BMS Main 2R device can control the precharge contactor. The precharge contactor is used to charge the intermediate capacity with low current and usually placed with the limiting resistor in parallel to charging or discharging contactor. 404 404 405 -BMS Main 3 can detecterrors while pre-charging theloadcapacityby monitoring **the current and voltage difference** before and after contactors.405 +BMS Main 3 can check the preacharge process by monitoring **the current and voltage difference** before and after contactors. 406 406 407 -BMS Main 2R can detecterrors while pre-charging theloadcapacity**only by monitoring the current**.407 +BMS Main 2R can check the preacharge process **only by monitoring the current**. 408 408 409 409 In **simple **mode precharge contactor closes a "Precharge time" before the closing of Charge or Discharge contactors and opens after the same amount of time after closing them. 410 410 ... ... @@ -431,7 +431,7 @@ 431 431 * **Delay before clearing the "Precharge error"**, second; 432 432 * **Lock the "Precharge error"** – a flag to block the error until the device is restarted. 433 433 434 -“Precharge error” generat ion conditions if any of the following is true:434 +“Precharge error” generates if any of the following is true: 435 435 436 436 * the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts"; 437 437 * voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts"; ... ... @@ -444,39 +444,31 @@ 444 444 445 445 === Charge === 446 446 447 -The rearetwosignalsthatserve charging the battery:"Charging" and "Allowcharging".Withthehelp of the"Allow charging" signal, the BMS commands the charger to start or stop charging.447 +The BMS Main 3 / BMS Main 2R device connect battery to the charger using the "Charging" signal. 448 448 449 - Thedevicesupports three charge control algorithms:449 +BMS Main 3 / BMS Main 2R supports three charge control algorithms: 450 450 451 -* Always on – charging is always allowed; 452 -* On charger connected – charging is allowed when there is a signal “Charger connected”; 453 -* On charge request – charging is allowed when there is a signal “Charge request”. 451 +If the "**Always on**" algorithm is selected, the "Сharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 454 454 455 -If the "**Always on**" algorithm is selected, the charging contactor and the allow charging contactor are always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 456 - 457 457 * Service reset; 458 458 * Power down request; 459 459 * Inhibit charging, 460 460 461 - bothcontactors are open(nocurrent flows).457 +the "Charging" signal is cleared. 462 462 463 463 When the algorithm "**On charger connected**" is selected, the control is performed as follows: 464 464 465 -* If there is a signal “Charger connected” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close; 466 -* If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 467 -* If in the process of charging the voltage on the cell exceeds the “Ready to charge” level, the allow charging contactor opens (while the charging contactor remains closed); 468 -* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open. 461 +* If there is a signal “Charger connected” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Charging" signal is set; 462 +* If the signal “Charger connected” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared. 469 469 470 470 When the "**On charge request**" algorithm selected, the control is performed as follows: 471 471 472 -* If there is a signal “Charge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close; 473 -* If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 474 -* If in the process of charging the voltage on the cell exceeds the “Ready to charge” level, the allow charging contactor opens (while the charging contactor remains closed); 475 -* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open. 466 +* If there is a signal “Charge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Charging" signal is set; 467 +* If the signal “Charge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared; 476 476 477 477 (% class="box infomessage" %) 478 478 ((( 479 -**Note: **when errors occur in the system, the **Charg e**contactoropenseither immediately or with the delay T,,off,, (depends on the settings described below).471 +**Note: **when errors occur in the system, the **"Charing" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below). 480 480 ))) 481 481 482 482 To change the parameters of the battery charge control algorithm, select the "Control → Charge" section: ... ... @@ -485,51 +485,47 @@ 485 485 486 486 In this section: 487 487 488 -* Enable – a flag to activate the charge control; 489 -* Algorithm: 490 -** Always on – charging is always allowed; 491 -** On charger connected – charging is allowed when there is a signal “Charger connected”; 492 -** On charge request – charging is allowed when there is a signal “Charge request”; 493 -* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared; 494 -* Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond; 495 -* Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond; 496 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]); 497 -* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor; 498 -* Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 499 -* Custom delay: <error> – delay for specific error, millisecond; 500 -* Switch off the charging contactor on errors without delay – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”; 480 +* **Enable **– a flag to activate the charge control; 481 +* **Algorithm**: 482 +** **Always on** – charging is always allowed; 483 +** **On charger connected** – charging is allowed when there is a signal “Charger connected”; 484 +** **On charge request** – charging is allowed when there is a signal “Charge request”; 485 +* **Allow charging only when the "Ready to charge" signal is set** – charging contactor will open if "Ready to charge" signal is cleared; 486 +* **Delay before starting charging** – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond; 487 +* **Delay before stopping charging** – a time delay T,,off,, before opening the charging contactor, millisecond; 488 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]); 489 +* **Errors 1, 2 to open the charging contactor** – bitfields to choose the errors which will open the charging contactor; 490 +* **Use custom delays before stopping charging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors; 491 +* **Custom delay: <error>** – delay for specific error, millisecond; 492 +* **Switch off the charging contactor on errors without delay** – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”; 501 501 502 502 === Discharge === 503 503 504 -The devicecontrolsthedischargingcontactortoconnect battery to the load.496 +The BMS Main 3 / BMS Main 2R device connect battery to the load using the "Discharging" signal. 505 505 506 - Thedevicesupports three algorithms to control battery discharging:498 +BMS Main 3 / BMS Main 2R supports three algorithms to control battery discharging: 507 507 508 -* Always on – load is always connected; 509 -* On charger disconnected – load is connected when there is no signal “Charger connected”; 510 -* On discharge request – load is connected when there is signal “Discharge request”. 500 +When the algorithm "**Always on**" is selected, the "Discharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 511 511 512 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 513 - 514 514 * Service reset 515 515 * Power down request 516 516 * Inhibit discharging 517 517 518 -the dischargingcontactoropens.506 +the "Discharging" signal is cleared. 519 519 520 520 If the algorithm "**On charger disconnected**" is selected, the control is performed as follows: 521 521 522 -* if there isnosignal“Charger connected”,thechargingcontactor isopenand there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, thedischargingcontactor closes;523 -* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the dischargingcontactoropens.510 +* if there are no “Charger connected” and "Charging" signals and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set; 511 +* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared. 524 524 525 525 When the "**On discharge request**" algorithm selected, the control is performed as follows: 526 526 527 -* if there is signal “Discharge request” ,the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, thedischargingcontactor closes;528 -* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the dischargingcontactoropens.515 +* if there is signal “Discharge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set; 516 +* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared. 529 529 530 530 (% class="box infomessage" %) 531 531 ((( 532 -**Note: **when errors occur in the system, the **Discharge ** contactoropenseither immediately or with the delay T,,off,, (depends on the settings described below).520 +**Note: **when errors occur in the system, the **"Discharge" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below). 533 533 ))) 534 534 535 535 To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section: ... ... @@ -538,32 +538,45 @@ 538 538 539 539 In this section: 540 540 541 -* Enable – a flag to activate the discharge control; 542 -* Algorithm: 543 -** Always on – load is always connected; 544 -** On charger disconnected – load is connected when there is no signal “Charger connected”; 545 -** On discharge request – load is connected when there is signal “Discharge request”; 546 -* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared; 547 -* Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond; 548 -* Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond; 549 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]); 550 -* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor; 551 -* Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 552 -* Custom delay: <error> – specific error delay, millisecond; 553 -* Switch off the discharging contactor on errors without delay – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”. 529 +* **Enable **– a flag to activate the discharge control; 530 +* **Algorithm**: 531 +** **Always on** – load is always connected; 532 +** **On charger disconnected** – load is connected when there is no signal “Charger connected”; 533 +** **On discharge request** – load is connected when there is signal “Discharge request”; 534 +* **Allow charging only when the "Ready to discharge" signal is set** – discharging contactor will open if "Ready to discharge" signal is cleared; 535 +* **Delay before starting discharging** – a time delay T,,on,, before closing the discharging contactor, millisecond; 536 +* **Delay before stopping discharging** – a time delay T,,off,, before opening the discharging contactor, millisecond; 537 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]); 538 +* **Errors 1, 2 to open the discharging contactor** – bitfields to choose the errors which will open the discharging contactor; 539 +* **Use custom delays before stopping discharging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors; 540 +* **Custom delay: <error>** – specific error delay, millisecond; 541 +* **Switch off the discharging contactor on errors without delay** – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”. 554 554 555 555 === Charge/Discharge === 556 556 557 -The BMS Main 3 device can control the c harge/discharge contactor,whichcombinesalgorithmsofchargingand dischargingcontactor.545 +The BMS Main 3 / BMS Main 2R device can control the contactor, used in power line both used for connecting battery to charger and load, by using the "Charging/Discharging" signal. 558 558 559 -Charg e/Dischargecontactorhas three algorithms of operation:547 +"Charging/Discharging" signal has three algorithms of operation: 560 560 561 -* Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor; 562 -* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors; 563 -* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs. 549 +On **Dependent (on Charging and Discharging signals)** algorithm the "Charging/Discharging" signal depends on Charge and Discharge controllers and equal to: 564 564 565 -TBA 551 +* "Charging" signal if "Charging" signal is set; 552 +* "Discharging" signal in other cases. 566 566 554 +When **Independent (Always) **algorithm is selected, the "Charging/Discharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 555 + 556 +* Service reset 557 +* Power down request 558 +* Inhibit charging 559 +* Inhibit discharging 560 + 561 +the Charging/Discharging signal is cleared. 562 + 563 +On **Independent (on Charge request or Discharge request)** algorithm "Charging/Discharging" signal is based on its own controller and performs as follows: 564 + 565 +* if there is "Charge request" or "Discharge request" signal and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the Charging/Discharging signal is set; 566 +* If the "Charge request" and "Discharge request" disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging/Discharging" signal is cleared. 567 + 567 567 (% class="box infomessage" %) 568 568 ((( 569 569 **Note: **when errors occur in the system, the **Charge/Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below). ... ... @@ -575,23 +575,23 @@ 575 575 576 576 In this section: 577 577 578 -* Enable – a flag to enable the charge/discharge controller. 579 -* Algorithm: 580 -** Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor; 581 -** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors; 582 -** Independent (on Charge request or Discharge request); 583 -* Delay before starting charging or discharging, millisecond; 584 -* Delay before stopping charging or discharging, millisecond; 585 -* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor; 586 -* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;587 -* Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes; 588 -* Errors 1, 2 which affect the contactor only if battery CHARGING is detected – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND; 589 -* Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND; 590 -* Switch off the charging/discharging contactor on errors without delay – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”. 579 +* **Enable **– a flag to enable the charge/discharge controller. 580 +* **Algorithm**: 581 +** **Dependent (on Charging and Discharging signals)** - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor; 582 +** **Independent (Always)** - Charge/Discharge contactor is always closed if there is no errors; 583 +** **Independent (on Charge request or Discharge request)**; 584 +* **Delay before starting charging or discharging**, millisecond; 585 +* **Delay before stopping charging or discharging**, millisecond; 586 +* **Control the precharging contactor** – a flag that enables control of precharging contactor while closing the charge/discharge contactor; 587 +* **Emulate the "Charging" and "Discharging" signals** – a flag to enable generation of "Charging" and "Discharging" signals in Independet mode when closing Charge/Discharge contactor. **DO NOT** use with enabled Charge and Discharge controllers; 588 +* **Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor** – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes; 589 +* **Errors 1, 2 which affect the contactor only if battery CHARGING is detected** – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND; 590 +* **Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected** – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND; 591 +* **Switch off the charging/discharging contactor on errors without delay** – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”. 591 591 592 592 === Discharge (AUX) === 593 593 594 -The BMS Main 3 device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices. 595 +The BMS Main 3 / BMS Main 2R device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices. 595 595 596 596 The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program. 597 597 ... ... @@ -607,27 +607,27 @@ 607 607 608 608 In this section: 609 609 610 -* Enable – a flag to activate the auxiliary discharge control; 611 -* Switch off the discharging (AUX) contactor if the SOC is too low; 612 -* Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %; 613 -* Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %; 614 -* Switch off the discharging (AUX) contactor if the cell voltage is out of the range; 615 -* Minimum cell voltage, V; 616 -* Maximum cell voltage, V; 617 -* Switch off the discharging (AUX) contactor if the battery voltage is out of the range; 618 -* Minimum battery voltage, V; 619 -* Maximum battery voltage, V; 620 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor. 611 +* **Enable **– a flag to activate the auxiliary discharge control; 612 +* **Switch off the discharging (AUX) contactor if the SOC is too low**; 613 +* **Minimum SOC** – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %; 614 +* **Tolerant SOC** – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %; 615 +* **Switch off the discharging (AUX) contactor if the cell voltage is out of the range**; 616 +* **Minimum cell voltage**, V; 617 +* **Maximum cell voltage**, V; 618 +* **Switch off the discharging (AUX) contactor if the battery voltage is out of the range**; 619 +* **Minimum battery voltage**, V; 620 +* **Maximum battery voltage**, V; 621 +* **Errors 1, 2 to open the auxiliary discharging contactor** – bitfields to choose the errors which will open the auxiliary discharging contactor. 621 621 622 622 === Cell balancing === 623 623 624 624 Balancing makes the voltage of all cells equal to the minimum cell voltage. 625 625 626 -The following balancing rules are supported: 627 +The following **balancing rules** are supported: 627 627 628 -* when the battery is charging (current I > 0) and time after until the battery is relaxed; 629 -* when the battery is charging (current I > 0) or when the battery is in a state of relaxation; 630 -* always (regardless of battery state).629 +* **Balance on charge** – perform balancing when the battery is charging (current I > 0) and time after until the battery is relaxed; 630 +* **Balance on charge or relaxed** – perform balancing when the battery is charging (current I > 0) or when the battery is in a state of relaxation ; 631 +* **Balance always** regardless of battery state. 631 631 632 632 A balancing resistor is connected to the cell if the following conditions are simultaneously met: 633 633 ... ... @@ -644,9 +644,9 @@ 644 644 If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed. 645 645 ))) 646 646 647 -The BMS Main 3 can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold. 648 +The BMS Main 3 / BMS Main 2R can enable the cell balancing by the external **“Balancing request”** signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold. 648 648 649 -BMS Main 3 can force a cellbalancing, if its voltage is higher than estimated value.650 +BMS Main 3 / BMS Main 2R can **force balancing **of the cell, if its voltage is higher than estimated value. 650 650 651 651 To change the cell balancing parameters, select the "Control → Cell balancing" section: 652 652 ... ... @@ -654,24 +654,25 @@ 654 654 655 655 In this section: 656 656 657 -* Enable – a flag to enable cell balancing; 658 -* Balancing rule: 659 -** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states); 660 -** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states); 661 -** Balance always – balancing is always performed regardless the battery state; 662 -* Balancing condition: 663 -** Automatic – balancing will be performed automatically if needed conditions are met; 664 -** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value; 665 -* Minimum cell voltage to start balancing, V; 666 -* Voltage deviation to start balancing; 667 -* Voltage deviation to stop balancing; 668 -* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor; 669 -* Maximum allowable temperature of BMS Logic devices, ºC; 670 -* Command to discharge all cells – a flag to force the balancing of all cells. 658 +* **Enable **– a flag to enable cell balancing; 659 +* **Balancing rule**: 660 +** **Balance on charge** – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states); 661 +** **Balance on charge or relaxed** - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states); 662 +** **Balance always** – balancing is always performed regardless the battery state; 663 +* **Balancing condition**: 664 +** **Automatic **– balancing will be performed automatically if needed conditions are met; 665 +** **On balancing request** – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value; 666 +* **Minimum cell voltage to start balancing**, V; 667 +* **Voltage deviation to start balancing**; 668 +* **Voltage deviation to stop balancing**; 669 +* **Voltage to start forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor; 670 +* **Voltage to stop forced balancing** – if cell voltage is below this value, it will stop discharging through balancing resistor; 671 +* **Maximum allowable temperature of BMS Logic devices**, ºC; 672 +* **Command to discharge all cells** – a flag to force the balancing of all cells. 671 671 672 672 === Series balancing === 673 673 674 -The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 676 +The BMS Main 3 / BMS Main 2R device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 675 675 676 676 Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2. 677 677 ... ... @@ -688,17 +688,17 @@ 688 688 689 689 In this section: 690 690 691 -* Enable – a flag to enable series balancing; 692 -* Number of Logics in a series; 693 -* Minimum series voltage to start balancing, V; 694 -* Balancing threshold, V; 695 -* Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 696 -* Period – a period to reset of charge counters for each series (to avoid accumulation of error), second; 697 -* Do not sum series voltages – a flag to disable the summing of series voltages. 3693 +* **Enable **– a flag to enable series balancing; 694 +* **Number of Logics in a series**; 695 +* **Minimum series voltage to start balancing**, V; 696 +* **Balancing threshold**, V; 697 +* **Coulomb threshold** – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 698 +* **Period **– a period to reset of charge counters for each series (to avoid accumulation of error), second; 699 +* **Do not sum series voltages** – a flag to disable the summing of series voltages. 698 698 699 699 === Power down === 700 700 701 -The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time. 703 +The BMS Main 3 / BMS Main 2R device can shut down itself if the battery voltage is low or the battery is idle for a long time. 702 702 703 703 Shutting down the battery system is performed according to the following conditions: 704 704 ... ... @@ -705,7 +705,7 @@ 705 705 * the battery voltage is below the minimum level; 706 706 * the “Charger connected” signal is cleared for 60 seconds. 707 707 708 -The BMS Main 3 device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” forthe configuredtime.710 +The BMS Main 3 device also shuts down the battery if it **stays for a long time **in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” state. 709 709 710 710 To change the parameters of the power down control, select the "Control → Power down" section: 711 711 ... ... @@ -713,11 +713,11 @@ 713 713 714 714 In this section: 715 715 716 -* Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 717 -* Idle time to power down – a time of battery inactivity after which the battery is shut down, minute; 718 -* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS. 719 -* Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 720 -* Delay before setting the internal power down signal – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 718 +* **Minimum voltage to power down** – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 719 +* **Idle time to power down** – a time of battery inactivity after which the battery is shut down, minute; 720 +* **Wait the "Power up/down request" is cleared (on startup)** – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS. 721 +* **Power down if KEYRUN and CHARGE_ON are cleared** – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 722 +* **Delay before setting the internal power down signal** – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 721 721 722 722 === Heater === 723 723 ... ... @@ -727,22 +727,24 @@ 727 727 728 728 In this section: 729 729 730 -* Enable – a flag to enable the heater control; 731 -* Minimum cell temperature, °C; 732 -* Tolerant cell temperature, °C; 733 -* Delay before starting the heater, millisecond; 734 -* Delay before stopping the heater, millisecond; 735 -* Switchoffthe heateronerrors(Undervoltage,Overcurrent,Hightemperature, ShortcircuitorCriticalerror).732 +* **Enable **– a flag to enable the heater control; 733 +* **Minimum cell temperature**, °C; 734 +* **Tolerant cell temperature**, °C; 735 +* **Delay before starting the heater**, millisecond; 736 +* **Delay before stopping the heater**, millisecond; 737 +* **Errors 1, 2 to open the heater** – bitfields to choose the errors which will open the heater. 736 736 737 737 As a result of operating the heating algorithm, the “Heater” signal is generated. 738 738 739 739 Conditions for signal generation: 740 740 741 -* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time. 743 +* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time; 744 +* there are no errors from "Errors 1, 2..." bitfields. 742 742 743 743 Conditions for clearing the signal: 744 744 745 -* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time. 748 +* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time; 749 +* there is an error from "Errors 1, 2..." bitfields. 746 746 747 747 (% class="box infomessage" %) 748 748 ((( ... ... @@ -757,22 +757,24 @@ 757 757 758 758 In this section: 759 759 760 -* Enable – a flag to enable the cooler control; 761 -* Maximum cell temperature, °C; 762 -* Tolerant cell temperature, °C; 763 -* Delay before starting the cooler, millisecond; 764 -* Delay before stopping the cooler, millisecond; 765 -* Switchoffthe coolercontactoron errors(Undervoltage,Overcurrent, Low temperature,Short circuitorCriticalerror).764 +* **Enable** – a flag to enable the cooler control; 765 +* **Maximum cell temperature**, °C; 766 +* **Tolerant cell temperature**, °C; 767 +* **Delay before starting the cooler**, millisecond; 768 +* **Delay before stopping the cooler**, millisecond; 769 +* **Errors 1, 2 to open the cooler **– bitfields to choose the errors which will open the cooler. 766 766 767 767 As a result of operating the cooling algorithm, the "Cooler" signal is generated. 768 768 769 769 Conditions for signal generation: 770 770 771 -* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time. 775 +* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time; 776 +* there are no errors from "Errors 1, 2..." bitfields. 772 772 773 773 Conditions for clearing the signal: 774 774 775 -* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time. 780 +* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time; 781 +* there is an error from "Errors 1, 2..." bitfields. 776 776 777 777 (% class="box infomessage" %) 778 778 ((( ... ... @@ -781,6 +781,11 @@ 781 781 782 782 === High voltage === 783 783 790 +(% class="box warningmessage" %) 791 +((( 792 +This section is not available on BMS Main 2R. 793 +))) 794 + 784 784 The BMS Main 3 device has an ability to measure high voltages before and after contactors. 785 785 786 786 To change the parameters of high voltage fault, select the "Control → High voltage" section: ... ... @@ -789,9 +789,9 @@ 789 789 790 790 In this section: 791 791 792 -* Enable – a flag to enable High voltage control; 793 -* Delay before clearing the High voltage fault, second; 794 -* Lock the High voltage fault. 803 +* **Enable **– a flag to enable High voltage control; 804 +* **Delay before clearing the High voltage fault**, second; 805 +* **Lock the High voltage fault**. 795 795 796 796 The BMS Main 3 implements a self-diagnostics of high-voltage measurement lines. If measurement line breaks or high-voltage polarity is wrong, “High voltage fault” is generated. 797 797 ... ... @@ -804,7 +804,7 @@ 804 804 805 805 The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level. 806 806 807 -The BMS Main 3 device can automatically determine the battery discharge characteristic. 818 +The BMS Main 3 / BMS Main 2R device can automatically determine the battery discharge characteristic. 808 808 809 809 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 810 810 ... ... @@ -817,18 +817,14 @@ 817 817 818 818 In this section: 819 819 820 -* Enable – a flag to enable cell analysis; 821 -* Discharge step, Ah; 822 -* Delta voltage – a maximum allowable voltage drop for the cell, V; 823 -* Logic index, Cell index – a position of the analyzed cell; 824 -* Analyse the most discharged cell – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 831 +* **Enable **– a flag to enable cell analysis; 832 +* **Discharge step**, Ah; 833 +* **Delta voltage** – a maximum allowable voltage drop for the cell, V; 834 +* **Logic index, Cell index** – a position of the analyzed cell; 835 +* **Analyse the most discharged cell** – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 825 825 826 -Discharge step should be set equal to 837 +Discharge step should be set equal to С/21, where C is the cell capacity. 827 827 828 -Discharge step= С/21, 829 - 830 -where C is the cell capacity. 831 - 832 832 The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”). 833 833 834 834 The algorithm for determining the discharge characteristic of the battery will be started if the “Enable” flag is set. From this moment, the control of the discharge contactor is performed by this algorithm.