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Wiki source code of 3.6 Battery protection

Version 7.1 by Admin on 2024/11/21 18:33
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1 The BMS Main 2.x board continuously monitors the state of the cells, BMS Logic boards, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
2
3 == 3.6.1 Overcurrent protection ==
4
5 To change the current protection of the battery, select the menu "Protections → Overcurrent protection":
6
7 [[Overcurrent protection settings>>image:1732211959984-118.png||data-xwiki-image-style-alignment="center" height="266" width="386"]]
8
9 In this section:
10
11 * Enable – a flag to enable the protection;
12 * Maximum charging current, А;
13 * Tolerant charging current, А;
14 * Maximum discharging current, А;
15 * Tolerant discharging current, А;
16 * Delay before setting the error, second;
17 * Delay before clearing the error, second;
18 * Lock the error until the device is reset – a flag to block the error until the board is restarted.
19
20 As a result of operation of the current protection, the "Overcurrent" error is generated.
21
22 Error generation conditions:
23
24 * the current is positive (charging), and its modulo value is greater than the “Maximum charging current” value for the “Delay before setting the error” time;
25 * the current is negative (discharging), and its modulo value is greater than the “Maximum discharging current” value for the “Delay before setting the error” time.
26
27 Conditions for removing the error:
28
29 * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
30 * the current is negative (discharging), and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
31
32 (% class="box infomessage" %)
33 (((
34 If there is the "Overcurrent" error, the charging and discharging relay open.
35 )))
36
37 == 3.6.2 Undervoltage protection ==
38
39 The board implements battery protection from too low or too high voltage on the cells.
40
41 To change the battery protection parameters from low voltage on the cells, select the menu "Protections → Undervoltage protection":
42
43 [[Undervoltage protection settings>>image:1732212212350-294.png||data-xwiki-image-style-alignment="center" height="207" width="359"]]
44
45 In this section:
46
47 * Enable – a flag to enable the protection;
48 * Minimum cell voltage, V;
49 * Tolerant cell voltage, V;
50 * Delay before setting the error, second;
51 * Delay before clearing the error, second;
52 * Lock the error until the device is reset.
53
54 As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
55
56 Error generation conditions:
57
58 * the minimum voltage among all cells of the battery is less than the “Minimum cell voltage” value for the “Delay before setting the error” time.
59
60 Conditions for removing the error:
61
62 * the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
63
64 (% class="box infomessage" %)
65 (((
66 If there is the "Undervoltage" error, the discharging relay opens.
67 )))
68
69 3.6.3 Overvoltage protection
70
71 To change the battery protection parameters from high voltage on the cells, select the menu "Protections → Overvoltage protection":
72
73 [[Overvoltage protection settings>>image:1732212357972-295.png||data-xwiki-image-style-alignment="center" height="218" width="338"]]
74
75 In this section:
76
77 * Enable – a flag to enable the protection;
78 * Maximum cell voltage, V;
79 * Tolerant cell voltage, V;
80 * Delay before setting the error, second;
81 * Delay before clearing the error, second;
82 * Switch off the discharging relay on error – a flag to open the discharging relay when the "Overvoltage" error is generated;
83 * Lock the error until the device is reset.
84
85 As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
86
87 Error generation conditions:
88
89 * the maximum voltage among all cells of the battery is greater than the “Maximum cell voltage” value for the “Delay before setting the error” time.
90
91 Conditions for removing the error:
92
93 * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
94
95 (% class="box infomessage" %)
96 (((
97 If there is the "Overvoltage" error, the charging relay and discharging relay opens (if the “Switch off the discharging relay on error” flag is set).
98 )))
99
100 == 3.6.4 Low temperature protection ==
101
102 The board implements battery protection from too low temperature.
103
104 To change the battery protection parameters from low temperature, select the menu "Protections → Low temperature protection":
105
106 [[Low temperature protection settings>>image:1732213953083-955.png||data-xwiki-image-style-alignment="center" height="237" width="338"]]
107
108 In this section:
109
110 * Enable – a flag to enable the protection;
111 * Minimum charging temperature, °C;
112 * Tolerant charging temperature, °C;
113 * Minimum discharging temperature, °C;
114 * Tolerant discharging temperature, °C;
115 * Delay before setting the error, second;
116 * Delay before clearing the error, second;
117 * Lock the error until the device is reset.
118
119 As a result of the operation of the battery protection from low temperature, the "Low CH temperature" or “Low DCH temperature” error is generated.
120
121 Error generation conditions:
122
123 * the minimum temperature among all cells of the battery is less than the “Minimum charging (discharging) temperature” value for the “Delay before setting the error” time.
124
125 Conditions for removing the error:
126
127 * the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
128
129 (% class="box infomessage" %)
130 (((
131 If there is the "Low CH temperature" error, the charging relay opens.
132 If there is the "Low DCH temperature" error, the discharging relay opens.
133 )))
134
135 == 3.6.5 High temperature protection ==
136
137 The board implements battery protection from too high temperature.
138
139 To change the battery protection parameters from high temperature, select the menu "Protections → High temperature protection":
140
141 [[image:1732213990755-759.png]]
142
143 In this section:
144
145 * Enable – a flag to enable the protection;
146 * Maximum charging temperature, °C;
147 * Tolerant charging temperature, °C;
148 * Maximum discharging temperature, °C;
149 * Tolerant discharging temperature, °C;
150 * Delay before setting the error, second;
151 * Delay before clearing the error, second;
152 * Lock the error until the device is reset.
153
154 As a result of the operation of the battery protection from high temperature, the "High CH temperature" or “High DCH temperature” error is generated.
155
156 Error generation conditions:
157
158 * the maximum temperature among all cells of the battery is greater than the “Maximum charging (discharging) temperature” value for the “Delay before setting the error” time.
159
160 Conditions for removing the error:
161
162 * the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
163
164 (% class="box infomessage" %)
165 (((
166 If there is the "High CH temperature" error, the charging relay opens.
167 If there is the "High DCH temperature" error, the discharging relay opens.
168 )))
169
170 == 3.6.6 Battery cover protection ==
171
172 To change the protection parameters from opening the battery cover, select the menu "Protections → Battery cover protection":
173
174 In this section:
175
176 * Enable – a flag to enable the protection;
177 * Delay before setting the error, second;
178 * Delay before clearing the error, second;
179 * Lock the error until the device is reset.
180
181 As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
182
183 Error generation conditions:
184
185 * there is a signal from the battery cover during the “Delay before setting the error” time.
186
187 Conditions for removing the error:
188
189 * no signal from the battery cover during the “Delay before clearing the error” time.
190
191 (% class="box warningmessage" %)
192 (((
193 **If there is the "Battery cover error", the “Critical error” is generated and all relays open.**
194 )))
195
196 == 3.6.7 High humidity protection ==
197
198 The board can protect the battery from high humidity and water.
199
200 To change the protection parameters of the battery from high humidity, select the menu "Protections → High humidity protection":
201
202
203 In this section:
204
205 * Enable – a flag to enable the protection;
206 * Maximum humidty, RH%;
207 * Tolerant humidty, RH%;
208 * Delay before setting the error, second;
209 * Delay before clearing the error, second;
210 * Lock the error until the device is reset.
211
212 As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
213
214 Error generation conditions:
215
216 * the measured humidity is greater than “Maximum humidity” during the “Delay before setting the error” time.
217
218 Conditions for removing the error:
219
220 * the measured humidity is less than the “Tolerant humidity” during the “Delay before clearing the error” time.
221
222 (% class="box infomessage" %)
223 (((
224 If there is the "High humidity" error, no action is taken. The error is indicative.
225 )))
226
227 == 3.6.8  Water protection ==
228
229 To change the protection parameters of the battery from water, select the menu "Protections → Water protection":
230
231
232 In this section:
233
234 * Enable – a flag to enable the protection;
235 * Maximum (water) humidty, RH%;
236 * Tolerant humidity, RH%;
237 * Delay before setting the error, second;
238 * Delay before clearing the error, second;
239 * Lock the error until the device is reset.
240
241 As a result of the operation of the battery protection from water, the "Water" error is generated.
242
243 Error generation conditions:
244
245 * the measured humidity is greater than the “Maximum (water) humidity” value during the “Delay before setting the error” time.
246
247 Conditions for removing the error:
248
249 * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
250
251 (% class="box warningmessage" %)
252 (((
253 **If there is the “Water” error, the “Critical error” is generated and all relays open.**
254 )))
255
256 == 3.6.9 Current sensor error ==
257
258 The board is implemented to check the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
259
260 To change the test parameters of the current sensor connection circuits, select the menu "Protections → Current sensor error":
261
262
263 In this section:
264
265 * Enable – a flag to enable the protection;
266 * Maximum voltage, V;
267 * Minimum voltage, V;
268 * Hysteresis voltage – a hysteresis value to clear the error, V;
269 * Delay before setting the error, second;
270 * Delay before clearing the error, second;
271 * Lock the error until the device is reset.
272
273 If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
274
275 Error generation conditions:
276
277 * the voltage in the signal line or zero level line of the current sensor is greater than the “Maximum voltage” value during the “Delay before setting the error” time;
278 * the voltage in the signal line or zero level line of the current sensor is less than the “Minimum voltage” value during the “Delay before setting the error” time.
279
280 Conditions for removing the error:
281
282 * the voltage in the signal line or zero level line of the current sensor is in range from (Minimum voltage + Hysteresis voltage) to (Maximum voltage - Hysteresis voltage) during the “Delay before clearing the error” time.
283
284 (% class="box warningmessage" %)
285 (((
286 **If there is the “Current sensor error”, the “Critical error” is generated and all relays open.**
287 )))
288
289 == 3.6.10 Short circuit protection ==
290
291 The BMS implements a protection of power circuits (contactors, power cables) against overheating caused by the flow of high current for a long time.
292
293 To change the protection parameters from short circuit, select the menu "Protections → Short circuit protection":
294
295
296 In this section:
297
298 * Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
299 ** Enable – a flag to enable the protection;
300 ** Maximum current, A;
301 ** Delay before setting the error, second;
302 * Delay before clearing the error, second;
303 * Switch off the charging relay on error – a flag to open the charging relay when the "Short circuit" error occurs;
304 * Switch off the discharging relay on error – a flag to open the discharging relay when the "Short circuit" error occurs;
305 * Lock the error until the device is reset.
306
307 If there is a short circuit, the "Short circuit" error is generated.
308
309 Error generation conditions:
310
311 * at any of the three protection levels, the current modulo is greater than the “Maximum current” value during the “Delay before setting the error” time.
312
313 Conditions for removing the error:
314
315 * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
316
317 (% class="box infomessage" %)
318 (((
319 If there is the "Short circuit" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
320 )))
321
322 == 3.6.11 Contactor high temperature protection ==
323
324 The BMS protects power contactors from overheating. To measure the temperature of the contactor, a thermistor is used, connected to the P13 connector of the board. Configuring of the analog input for temperature measurement is described in section Input signals.
325
326 To change the overheating protection parameters of power contactors, select the menu "Protections → Contactor high temperature protection":
327
328
329 In this section:
330
331 * Enable – a flag to enable the protection;
332 * Maximum temperature, °C;
333 * Tolerant temperature, °C;
334 * Delay before setting the error, second;
335 * Delay before clearing the error, second;
336 * Switch off the charging relay on error – a flag to open the charging relay when the "Contactor high temperature" error occurs;
337 * Switch off the discharging relay on error – a flag to open the discharging relay when the "Contactor high temperature" error occurs;
338 * Lock the error until the device is reset.
339
340 If there is a contactor overheat, the "Contactor high temperature" error is generated.
341
342 Error generation conditions:
343
344 * the contactor temperature is greater than the “Maximum temperature” value during the “Delay before setting the error” time.
345
346 Conditions for removing the error:
347
348 * the contactor temperature is lower than the “Tolerant temperature” value during the “Delay before clearing the error” time.
349
350 (% class="box infomessage" %)
351 (((
352 If there is the "Contactor high temperature" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
353 )))
354
355 == 3.6.12 Unallowable charging protection ==
356
357 The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging relay to prevent unallowable battery operation.
358
359 To change the parameters of the unallowable charging protection, select the menu "Protections → Unallowable charging protection":
360
361
362 In this section:
363
364 * Enable – a flag to enable the protection;
365 * Delay before setting the error, second;
366 * Delay before clearing the error, second;
367 * Lock the error until the device is reset.
368
369 If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
370
371 Error generation conditions:
372
373 * the charging relay is open and the battery current is not zero during the “Delay before setting the error” time.
374
375 Conditions for removing the error:
376
377 * the battery current is zero during the “Delay before clearing the error” time.
378
379 (% class="box infomessage" %)
380 (((
381 If there is the "Unallowable charging" error, the discharging relay opens.
382 )))
383
384 == 3.6.13 Stuck contactor protection ==
385
386 The BMS Main 2.x protects contactors against sticking.
387
388 To change the protection parameters against sticking, select the menu "Protections → Stuck contactor protection":
389
390
391 In this section:
392
393 * Enable – a flag to enable the protection;
394 * Delay before setting the error, second;
395 * Delay before clearing the error, second;
396 * Lock the error until the device is reset;
397
398 If there is a stuck contactor, the “Stuck contactor” error is generated.
399
400 Error generation conditions:
401
402 * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
403
404 == 3.6.14 Contactor feedback check ==
405
406 The BMS Main 2.x can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, one of the discrete input must be set as corresponding contactor feedback signal (see section Input and output signals).
407
408 To change the contactor feedback check parameters, select the menu "Protections → Contactor feedback check":
409
410
411 In this section:
412
413 * Enable – a flag to enable the protection;
414 * Delay before setting the error, second;
415 * Delay before clearing the error, second;
416 * Lock the error until the device is reset;
417
418 If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
419
420 * discrete output of charging, precharge, discharging, charging/discharging or main contactor not matches its feedback value.
421
422 == 3.6.15 Charging contactor cycles protection ==
423
424 The BMS protects the charging contactor against frequent switching.
425
426 To change the protection parameters against high frequency switching of the charging contactor, select the menu "Protections → Charging contactor cycles protection":
427
428
429 In this section:
430
431 * Enable – a flag to enable the protection;
432 * Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
433 * Period – a time in which the BMS counts switchings of the charging contactor, second;
434 * Delay before setting the error, second;
435 * Delay before clearing the error, second;
436 * Lock the error until the device is reset;
437 * Cycles – a number of the charging contactor switchings made during battery operation.
438
439 If there is the high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
440
441 Error generation conditions:
442
443 * the number of switchings of the charging contactor for the “Period” time is greater than or equal to the “Cycles threshold” value. The error is generated with the “Delay before setting the error” delay.
444
445 Conditions for removing the error:
446
447 * the “Delay before clearing the error” time has passed since the error was generated.
448
449 (% class="box infomessage" %)
450 (((
451 If there is the "CH contactor cycles error" error, the charging relay opens.
452 )))
453
454 == 3.6.16 Discharging contactor cycles protection ==
455
456 The BMS protects the discharging contactor against frequent switching.
457
458 To change the protection parameters against high frequency switching of the discharging contactor, select the menu "Protections → Discharging contactor cycles protection":
459
460
461 In this section:
462
463 * Enable – a flag to enable the protection;
464 * Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
465 * Period – a time in which the BMS counts switchings of the charging contactor, second;
466 * Delay before setting the error, second;
467 * Delay before clearing the error, second;
468 * Lock the error until the device is reset;
469 * Cycles – a number of the charging contactor switchings made during battery operation.
470
471 If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
472
473 Error generation conditions:
474
475 * the number of switchings of the discharging contactor for the “Period” time is greater than or equal to the “Cycles threshold” value. The error is generated with the “Delay before setting the error” delay.
476
477 Conditions for removing the error:
478
479 * the “Delay before clearing the error” time has passed since the error was generated.
480
481 (% class="box infomessage" %)
482 (((
483 If there is the "DCH contactor cycles error" error, the discharging relay opens.
484 )))
485
486 == 3.6.17 Temperature sensor error ==
487
488 The board is implemented to check the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
489
490 To change the protection parameters of the temperature sensors circuits, select the menu "Protections → Temperature sensor error":
491
492
493 In this section:
494
495 * Enable – a flag to enable the protection;
496 * Delay before setting the error, second;
497 * Delay before clearing the error, second;
498 * Lock the error until the device is reset.
499
500 If there are no temperature sensors connected to a BMS Logic board or any temperature sensor is shorted, the "No temp. sensors" error and "Temp. sensor is shorted" error are generated respectively. These errors generated and removed with the “Delay before setting the error” and “Delay before clearing the error” delays.
501
502 (% class="box warningmessage" %)
503 (((
504 **If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the “Critical error” is generated and all relays open.**
505 )))
506
507 == 3.6.18 Logic high temperature protection ==
508
509 To change the overheating protection parameters of BMS Logic boards, select the menu "Protections → Logic high temperature protection":
510
511
512 In this section:
513
514 * Enable – a flag to enable the protection;
515 * Maximum Logic temperature, °C;
516 * Tolerant Logic temperature, °C;
517 * Lock the error until the device is reset.
518
519 As a result of the operation of the protection from high temperatures of BMS Logic boards, the "Logic high temperature" is generated.
520
521 Error generation conditions:
522
523 * a BMS Logic board temperature is higher than the “Maximum Logic temperature” value.
524
525 Conditions for removing the error:
526
527 * a BMS Logic board temperature is less than the “Tolerant Logic temperature” value.
528
529 (% class="box infomessage" %)
530 (((
531 **Cell balancing is prohibited for overheated boards.**
532 )))
533
534 == 3.6.19 Logic offline protection ==
535
536 To change the protection parameters from loss of communication with BMS Logic boards, select the menu "Protections → Logic offline protection":
537
538
539 In this section:
540
541 * Enable – a flag to enable the protection;
542 * Lock the error until the device is reset.
543
544 As a result of the protection from loss of communication with BMS Logic boards, the "Logic offline" error is generated.
545
546 Error generation conditions:
547
548 * at least one of the connected BMS Logic boards does not respond to the commands of the BMS Main 2.x board for 10 seconds.
549
550 Conditions for removing the error:
551
552 * all connected BMS Logic boards respond to the commands of the BMS Main 2.x board.
553
554 (% class="box warningmessage" %)
555 (((
556 **If there is the "Logic offline" error, the “Critical error” is generated and all relays open.**
557 )))
558
559 == 3.6.20 Cell count protection ==
560
561 To change the protection parameters from the mismatch of the number of cells to the set value, select the menu "Protections → Cell count protection":
562
563
564 In this section:
565
566 * Enable – a flag to enable the protection;
567 * Cell count – a number of cells connected to the BMS;
568 * Delay before setting the error, second;
569 * Delay before clearing the error, second;
570 * Lock the error until the device is reset.
571
572 As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
573
574 Error generation conditions:
575
576 * the number of cells connected to the BMS is **not equal** to the “Cell count” value during the “Delay before setting the error” time.
577
578 Conditions for removing the error:
579
580 * the number of cells connected to the BMS is **equal** to the “Cell count” value during the “Delay before clearing the error” time.
581
582 (% class="box warningmessage" %)
583 (((
584 **If there is the "Cell count error", the “Critical error” is generated and all relays open.**
585 )))
586
587 == 3.6.21 Logic count protection ==
588
589 To change the protection parameters from the mismatch of the number of BMS Logic boards to the set value, select the menu "Protections → Logic count protection":
590
591
592 In this section:
593
594 * Enable – a flag to enable the protection;
595 * Logic count – a number of BMS Logic boards connected to the BMS Main 2.x;
596 * Fast scan – a flag to scan BMS Logic boards fast (boards with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
597 * Lock the error until the device is reset.
598
599 As a result of the operation of the protection from the mismatch of the number of BMS Logic boards, the "Logic count error" is generated.
600
601 Error generation conditions:
602
603 * the number of BMS Logic boards connected to the BMS Main 2.x is **not equal** to the “Logic count” value.
604
605 Conditions for removing the error:
606
607 * the number of BMS Logic boards connected to the BMS Main is **equal** to the “Logic count” value.
608
609 (% class="box warningmessage" %)
610 (((
611 **If there is the "Logic count error", the “Critical error” is generated and all relays open.**
612 )))
613
614 == 3.6.22 WDT protection ==
615
616 If the BMS firmware hangs, the watchdog timer resets the board. The BMS can detect that the board was reset and generates the “WDT reset” error.
617
618 To change the parameters of the watchdog protection, select the menu "Protections → WDT protection":
619
620
621 In this section:
622
623 * Enable – a flag to enable the protection;
624 * Delay before clearing the error, second;
625 * Lock the error until the device is reset.
626
627 Conditions for removing the error:
628
629 * the “Delay before clearing the error” time has passed from the board startup.
630
631 (% class="box warningmessage" %)
632 (((
633 **If there is the "WDT reset" error, the “Critical error” is generated and all relays open.**
634 )))
635
636 == 3.6.23 Insulation monitoring ==
637
638 BMS Main 2.x can detect a signal from an external insulation monitoring device (such as Bender IR155) to monitor the insulation quality.
639
640 To change the insulation monitoring parameters, select the menu "Protections → Insulation monitoring":
641
642
643 In this section:
644
645 * Enable – a flag to enable the protection;
646 * Delay before setting the error, second;
647 * Delay before clearing the error, second;
648 * Lock the error until the device is reset.
649
650 Error is set if corresponding discrete input is set up and it received logical zero.
651
652 == 3.6.24 Critical error parameters ==
653
654 To change the critical error parameters, select the menu "Protections → Critical error parameters":
655
656
657 In this section:
658
659 * Enable – a flag to enable the protection;
660 * Delay before setting the error, second;
661 * Delay before clearing the error, second;
662 * Lock the error until the device is reset.
663
664 The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
665
666 * “Battery cover error”;
667 * “Water”;
668 * “Logic offline”;
669 * “Cell count error”;
670 * “Logic count error”;
671 * “ADC error”;
672 * “No temp. sensors”;
673 * “Temp. sensor is shorted”;
674 * “Current sensor error”;
675 * “Shunt offline”;
676 * “Shunt error”;
677 * “Settings error”;
678 * “WDT reset”.
679
680 The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
681
682 (% class="box warningmessage" %)
683 (((
684 **If there is the “Critical error”, all relays open.**
685 )))
686
687 == 3.6.25 General error parameters ==
688
689 == 3.6.26 Low SOC signal ==
690
691 To change the parameters of the generation a signal about low battery level, select the menu "Protections → Low SOC signal":
692
693
694 In this section:
695
696 * Enable – a flag to enable signal generation;
697 * Minimum SOC, %;
698 * Tolerant SOC, %;
699 * Delay before setting the signal, second;
700 * Delay before clearing the signal, second;
701 * Lock the signal until the device is reset.
702
703 Signal generation conditions:
704
705 * the battery SOC is less than the “Minimum SOC” value during the “Delay before setting the signal” time.
706
707 Conditions for clearing the signal:
708
709 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
710
711 The "Low SOC signal" is //indicative //and can be linked to any discrete output of the board.
712
713 == 3.6.27 High charging current signal ==
714
715 To change the parameters of the generation high-current signal, select the menu "Protections → High charging current signal":
716
717
718 In this section:
719
720 * Enable – a flag to enable signal generation;
721 * Maximum charging current, А;
722 * Tolerant charging current, А;
723 * Delay before setting the signal, second;
724 * Delay before clearing the signal, second;
725 * Lock the signal until the device is reset.
726
727 Signal generation conditions:
728
729 * the measured current is greater than the “Maximum charging current” value during the “Delay before setting the signal” time.
730
731 Conditions for clearing the signal:
732
733 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
734
735 The "High charging current" signal is //indicative //and can be linked to any discrete output of the board.
736
737 == 3.6.28 Heater control ==
738
739 To change the parameters of the heater control algorithm, select the menu "Protections → Heater control":
740
741
742 In this section:
743
744 * Enable – a flag to enable heater control;
745 * Minimum cell temperature, °C;
746 * Tolerant cell temperature, °C;
747 * Delay before setting the signal, second;
748 * Delay before clearing the signal, second;
749 * Lock the signal until the device is reset;
750 * Switch off the heater relay on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
751
752 As a result of operating the heating algorithm, the “Heater” signal is generated.
753
754 Conditions of signal generation:
755
756 * The minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before setting the signal” time.
757
758 Conditions for clearing the signal:
759
760 * the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before clearing the signal” time.
761
762 (% class="box infomessage" %)
763 (((
764 If there is the "Heater" signal, the heater relay closes and/or a signal is output to the corresponded digital output.
765 )))
766
767 == 3.6.29 Heater (AUX) control ==
768
769 To change the parameters of the auxiliary heater control algorithm, select the menu "Protections → Heater (AUX) control":
770
771
772 In this section:
773
774 * Enable – a flag to enable heater control;
775 * Minimum cell temperature, °C;
776 * Tolerant cell temperature, °C;
777 * Delay before setting the signal, second;
778 * Delay before clearing the signal, second;
779 * Lock the signal until the device is reset;
780 * Switch off the heater relay on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
781
782 As a result of operating the heating algorithm, the “Heater (AUX)” signal is generated.
783
784 Conditions of signal generation:
785
786 * The minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before setting the signal” time.
787
788 Conditions for clearing the signal:
789
790 * the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before clearing the signal” time.
791
792 (% class="box infomessage" %)
793 (((
794 If there is the "Heater (AUX)" signal, the auxiliary heater relay closes and/or a signal is output to the corresponded digital output.
795 )))
796
797 == 3.6.30 Cooler control ==
798
799 To change the parameters of the cooler control algorithm, select the menu "Protections → Cooler control":
800
801
802 In this section:
803
804 * Enable – a flag to enable cooler control;
805 * Maximum cell temperature, °C;
806 * Tolerant cell temperature, °C;
807 * Delay before setting the signal, second;
808 * Delay before clearing the signal, second;
809 * Lock the signal until the device is reset;
810 * Switch off the cooler relay on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
811
812 As a result of operating the cooling algorithm, the "Cooler" signal is generated.
813
814 Conditions of signal generation:
815
816 * the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before setting the signal” time.
817
818 Conditions for clearing the signal:
819
820 * the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before clearing the signal” time.
821
822 (% class="box infomessage" %)
823 (((
824 If there is the "Cooler" signal, the cooler relay closes and/or a signal is output to the corresponded digital output.
825 )))
826
827 == 3.6.31 Fault simulation ==
828
829 The board provides the ability to manually generate error flags bypassing the protection algorithms. This functionality is intended for commissioning.
830
831 To simulate battery and BMS errors, select the menu "Protections → Fault simulation":
832
833
834 In this section:
835
836 * Overcurrent;
837 * Undervoltage;
838 * Overvoltage;
839 * Low CH temperature;
840 * Low DCH temperature;
841 * High CH temperature;
842 * High DCH temperature;
843 * Battery cover error;
844 * High humidity;
845 * Water;
846 * Current sensor error;
847 * Short circuit;
848 * Contactor high temperature;
849 * Unallowable charging;
850 * Stuck contactor;
851 * CH contactor feedback error;
852 * DCH contactor feedback error;
853 * PCH contactor feedback error;
854 * CH/DCH contactor feedback error;
855 * Main contactor feedback error;
856 * CH contactor cycles error;
857 * DCH contactor cycles error;
858 * Logic high temperature;
859 * Logic offline;
860 * Cell count error;
861 * Logic count error;
862 * Insulation error;
863 * Critical error;
864 * Low SOC;
865 * High charging current;
866 * Heater;
867 * Cooler.
868
869 To simulate errors, set the necessary flags and click on the "Save" button.