Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:56

From version 87.3
edited by Admin
on 2026/04/02 10:16
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To version 76.13
edited by Admin
on 2026/03/31 13:18
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -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 calculated as overall string current divided by 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 estimated as a fraction of overall current accordingly to the 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 by using following algorithms:
42 +The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell, and then the overall battery SOC, 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 / BMS Main 2R device calculates the state of health of the battery (SOH) using two algorithms:
97 +The BMS Main 3 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  
... ... @@ -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 check the preacharge process by monitoring **the current and voltage difference** before and after contactors.
405 +BMS Main 3 can detect errors while pre-charging the load capacity by monitoring **the current and voltage difference** before and after contactors.
406 406  
407 -BMS Main 2R can check the preacharge process **only by monitoring the current**.
407 +BMS Main 2R can detect errors while pre-charging the load capacity **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” generates if any of the following is true:
434 +“Precharge error” generation conditions 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";
... ... @@ -444,27 +444,35 @@
444 444  
445 445  === Charge ===
446 446  
447 -There are two signals that serve charging the battery: "Charging" and "Allow charging". With the help of the "Allow charging" signal, the BMS commands the charger to start or stop charging.
447 +There are two contactors that serve charging the battery: a charging contactor and an allow charging contactor. With the help of the allow charging contactor, the BMS commands the charger to start or stop charging.
448 448  
449 -BMS Main 3 / BMS Main 2R supports three charge control algorithms:
449 +The device supports three charge control algorithms:
450 450  
451 -If the "**Always on**" algorithm is selected, the "Сharging signals" and the "Allow charging" signals are always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
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”.
452 452  
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 +
453 453  * Service reset;
454 454  * Power down request;
455 455  * Inhibit charging,
456 456  
457 -both signals are cleared.
461 +both contactors are open (no current flows).
458 458  
459 459  When the algorithm "**On charger connected**" is selected, the control is performed as follows:
460 460  
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" and the "Allow charging" signal are set;
462 -* If the signal “Charger connected” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), the "Allow charging" signal is cleared and after the delay time T,,off,, the "Charging" signal is cleared.
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.
463 463  
464 464  When the "**On charge request**" algorithm selected, the control is performed as follows:
465 465  
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" and the "Allow charging" signal are set;
467 -* If the signal “Charge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
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.
468 468  
469 469  (% class="box infomessage" %)
470 470  (((
... ... @@ -477,26 +477,30 @@
477 477  
478 478  In this section:
479 479  
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”;
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”;
493 493  
494 494  === Discharge ===
495 495  
496 -The BMS Main 3 / BMS Main 2R device controls the discharging contactor to connect battery to the load.
504 +The device controls the discharging contactor to connect battery to the load.
497 497  
498 -BMS Main 3 / BMS Main 2R supports three algorithms to control battery discharging:
506 +The device supports three algorithms to control battery discharging:
499 499  
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”.
511 +
500 500  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:
501 501  
502 502  * Service reset
... ... @@ -526,45 +526,32 @@
526 526  
527 527  In this section:
528 528  
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”.
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”.
542 542  
543 543  === Charge/Discharge ===
544 544  
545 -The BMS Main 3 / BMS Main 2R device can control the Charge/Discharge contactor, which combines algorithms of charging and discharging contactor.
557 +The BMS Main 3 device can control the charge/discharge contactor, which combines algorithms of charging and discharging contactor.
546 546  
547 547  Charge/Discharge contactor has three algorithms of operation:
548 548  
549 -On **Dependent (on Charging and Discharging signals)** algorithm the charge/discharge contactor depends on Charge and Discharge controllers and behaves:
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.
550 550  
551 -* as Charging contactor if "Charging" signal is set;
552 -* as Discharging contactor in other cases.
565 +TBA
553 553  
554 -When **Independent (Always) **algorithm is selected, the charging/discharging contactor is always closed. 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 contactor opens.
562 -
563 -On **Independent (on Charge request or Discharge request)** algorithm charge/discharge contactor 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 contactor closes;
566 -* If the "Charge request" or "Discharge request" disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the charging/discharging contactor opens.
567 -
568 568  (% class="box infomessage" %)
569 569  (((
570 570  **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).
... ... @@ -576,23 +576,23 @@
576 576  
577 577  In this section:
578 578  
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 when closing charge/discharge contactor;
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”.
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”.
592 592  
593 593  === Discharge (AUX) ===
594 594  
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.
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.
596 596  
597 597  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.
598 598  
... ... @@ -608,27 +608,27 @@
608 608  
609 609  In this section:
610 610  
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.
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.
622 622  
623 623  === Cell balancing ===
624 624  
625 625  Balancing makes the voltage of all cells equal to the minimum cell voltage.
626 626  
627 -The following **balancing rules** are supported:
626 +The following balancing rules are supported:
628 628  
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.
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).
632 632  
633 633  A balancing resistor is connected to the cell if the following conditions are simultaneously met:
634 634  
... ... @@ -645,9 +645,9 @@
645 645  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
646 646  )))
647 647  
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.
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.
649 649  
650 -BMS Main 3 / BMS Main 2R can **force balancing **of the cell, if its voltage is higher than estimated value.
649 +BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value.
651 651  
652 652  To change the cell balancing parameters, select the "Control → Cell balancing" section:
653 653  
... ... @@ -655,25 +655,24 @@
655 655  
656 656  In this section:
657 657  
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.
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.
673 673  
674 674  === Series balancing ===
675 675  
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.
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.
677 677  
678 678  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.
679 679  
... ... @@ -690,17 +690,17 @@
690 690  
691 691  In this section:
692 692  
693 -* **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.
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.3
700 700  
701 701  === Power down ===
702 702  
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.
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.
704 704  
705 705  Shutting down the battery system is performed according to the following conditions:
706 706  
... ... @@ -707,7 +707,7 @@
707 707  * the battery voltage is below the minimum level;
708 708  * the “Charger connected” signal is cleared for 60 seconds.
709 709  
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.
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)” for the configured time.
711 711  
712 712  To change the parameters of the power down control, select the "Control → Power down" section:
713 713  
... ... @@ -715,11 +715,11 @@
715 715  
716 716  In this section:
717 717  
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.
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.
723 723  
724 724  === Heater ===
725 725  
... ... @@ -729,24 +729,22 @@
729 729  
730 730  In this section:
731 731  
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.
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 +* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
738 738  
739 739  As a result of operating the heating algorithm, the “Heater” signal is generated.
740 740  
741 741  Conditions for signal generation:
742 742  
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.
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.
745 745  
746 746  Conditions for clearing the signal:
747 747  
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.
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.
750 750  
751 751  (% class="box infomessage" %)
752 752  (((
... ... @@ -761,24 +761,22 @@
761 761  
762 762  In this section:
763 763  
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.
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 +* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
770 770  
771 771  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
772 772  
773 773  Conditions for signal generation:
774 774  
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.
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.
777 777  
778 778  Conditions for clearing the signal:
779 779  
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.
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.
782 782  
783 783  (% class="box infomessage" %)
784 784  (((
... ... @@ -787,11 +787,6 @@
787 787  
788 788  === High voltage ===
789 789  
790 -(% class="box warningmessage" %)
791 -(((
792 -This section is not available on BMS Main 2R.
793 -)))
794 -
795 795  The BMS Main 3 device has an ability to measure high voltages before and after contactors.
796 796  
797 797  To change the parameters of high voltage fault, select the "Control → High voltage" section:
... ... @@ -800,9 +800,9 @@
800 800  
801 801  In this section:
802 802  
803 -* **Enable **– a flag to enable High voltage control;
804 -* **Delay before clearing the High voltage fault**, second;
805 -* **Lock the High voltage fault**.
792 +* Enable – a flag to enable High voltage control;
793 +* Delay before clearing the High voltage fault, second;
794 +* Lock the High voltage fault.
806 806  
807 807  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.
808 808  
... ... @@ -815,7 +815,7 @@
815 815  
816 816  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.
817 817  
818 -The BMS Main 3 / BMS Main 2R device can automatically determine the battery discharge characteristic.
807 +The BMS Main 3 device can automatically determine the battery discharge characteristic.
819 819  
820 820  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
821 821  
... ... @@ -828,14 +828,18 @@
828 828  
829 829  In this section:
830 830  
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).
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).
836 836  
837 -Discharge step should be set equal to С/21, where C is the cell capacity.
826 +Discharge step should be set equal to
838 838  
828 +Discharge step= С/21,
829 +
830 +where C is the cell capacity.
831 +
839 839  The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”).
840 840  
841 841  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.