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Wiki source code of 3.6 Battery protection

Version 13.2 by Admin on 2024/11/21 18:37
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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 [[High temperature protection settings>>image:1732213990755-759.png||data-xwiki-image-style-alignment="center" height="258" width="370"]]
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 [[Battery cover protection settings>>image:1732214030014-281.png||data-xwiki-image-style-alignment="center" height="155" width="334"]]
175
176 In this section:
177
178 * Enable – a flag to enable the protection;
179 * Delay before setting the error, second;
180 * Delay before clearing the error, second;
181 * Lock the error until the device is reset.
182
183 As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
184
185 Error generation conditions:
186
187 * there is a signal from the battery cover during the “Delay before setting the error” time.
188
189 Conditions for removing the error:
190
191 * no signal from the battery cover during the “Delay before clearing the error” time.
192
193 (% class="box warningmessage" %)
194 (((
195 **If there is the "Battery cover error", the “Critical error” is generated and all relays open.**
196 )))
197
198 == 3.6.7 High humidity protection ==
199
200 The board can protect the battery from high humidity and water.
201
202 To change the protection parameters of the battery from high humidity, select the menu "Protections → High humidity protection":
203
204 [[High humidity protection settings>>image:1732214076060-358.png||data-xwiki-image-style-alignment="center" height="185" width="321"]]
205
206 In this section:
207
208 * Enable – a flag to enable the protection;
209 * Maximum humidity, RH%;
210 * Tolerant humidity, RH%;
211 * Delay before setting the error, second;
212 * Delay before clearing the error, second;
213 * Lock the error until the device is reset.
214
215 As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
216
217 Error generation conditions:
218
219 * the measured humidity is greater than “Maximum humidity” during the “Delay before setting the error” time.
220
221 Conditions for removing the error:
222
223 * the measured humidity is less than the “Tolerant humidity” during the “Delay before clearing the error” time.
224
225 (% class="box infomessage" %)
226 (((
227 If there is the "High humidity" error, no action is taken. The error is indicative.
228 )))
229
230 == 3.6.8  Water protection ==
231
232 To change the protection parameters of the battery from water, select the menu "Protections → Water protection":
233
234 [[Water protection settings>>image:1732214111990-184.png||data-xwiki-image-style-alignment="center" height="199" width="340"]]
235
236 In this section:
237
238 * Enable – a flag to enable the protection;
239 * Maximum (water) humidty, RH%;
240 * Tolerant humidity, RH%;
241 * Delay before setting the error, second;
242 * Delay before clearing the error, second;
243 * Lock the error until the device is reset.
244
245 As a result of the operation of the battery protection from water, the "Water" error is generated.
246
247 Error generation conditions:
248
249 * the measured humidity is greater than the “Maximum (water) humidity” value during the “Delay before setting the error” time.
250
251 Conditions for removing the error:
252
253 * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
254
255 (% class="box warningmessage" %)
256 (((
257 **If there is the “Water” error, the “Critical error” is generated and all relays open.**
258 )))
259
260 == 3.6.9 Current sensor error ==
261
262 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.
263
264 To change the test parameters of the current sensor connection circuits, select the menu "Protections → Current sensor error":
265
266 [[Current sensor error settings>>image:1732214146724-132.png||data-xwiki-image-style-alignment="center" height="438" width="365"]]
267
268 In this section:
269
270 * Enable – a flag to enable the protection;
271 * Maximum voltage, V;
272 * Minimum voltage, V;
273 * Hysteresis voltage – a hysteresis value to clear the error, V;
274 * Delay before setting the error, second;
275 * Delay before clearing the error, second;
276 * Lock the error until the device is reset.
277
278 If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
279
280 Error generation conditions:
281
282 * 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;
283 * 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.
284
285 Conditions for removing the error:
286
287 * 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.
288
289 (% class="box warningmessage" %)
290 (((
291 **If there is the “Current sensor error”, the “Critical error” is generated and all relays open.**
292 )))
293
294 == 3.6.10 Short circuit protection ==
295
296 The BMS implements a protection of power circuits (contactors, power cables) against overheating caused by the flow of high current for a long time.
297
298 To change the protection parameters from short circuit, select the menu "Protections → Short circuit protection":
299
300 [[Short circuit protection settings>>image:1732214207026-822.png||data-xwiki-image-style-alignment="center" height="528" width="371"]]
301
302 In this section:
303
304 * Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
305 ** Enable – a flag to enable the protection;
306 ** Maximum current, A;
307 ** Delay before setting the error, second;
308 * Delay before clearing the error, second;
309 * Switch off the charging relay on error – a flag to open the charging relay when the "Short circuit" error occurs;
310 * Switch off the discharging relay on error – a flag to open the discharging relay when the "Short circuit" error occurs;
311 * Lock the error until the device is reset.
312
313 If there is a short circuit, the "Short circuit" error is generated.
314
315 Error generation conditions:
316
317 * 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.
318
319 Conditions for removing the error:
320
321 * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
322
323 (% class="box infomessage" %)
324 (((
325 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).
326 )))
327
328 == 3.6.11 Contactor high temperature protection ==
329
330 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.
331
332 To change the overheating protection parameters of power contactors, select the menu "Protections → Contactor high temperature protection":
333
334 [[image:1732214237851-405.png]]
335
336 In this section:
337
338 * Enable – a flag to enable the protection;
339 * Maximum temperature, °C;
340 * Tolerant temperature, °C;
341 * Delay before setting the error, second;
342 * Delay before clearing the error, second;
343 * Switch off the charging relay on error – a flag to open the charging relay when the "Contactor high temperature" error occurs;
344 * Switch off the discharging relay on error – a flag to open the discharging relay when the "Contactor high temperature" error occurs;
345 * Lock the error until the device is reset.
346
347 If there is a contactor overheat, the "Contactor high temperature" error is generated.
348
349 Error generation conditions:
350
351 * the contactor temperature is greater than the “Maximum temperature” value during the “Delay before setting the error” time.
352
353 Conditions for removing the error:
354
355 * the contactor temperature is lower than the “Tolerant temperature” value during the “Delay before clearing the error” time.
356
357 (% class="box infomessage" %)
358 (((
359 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).
360 )))
361
362 == 3.6.12 Unallowable charging protection ==
363
364 The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging relay to prevent unallowable battery operation.
365
366 To change the parameters of the unallowable charging protection, select the menu "Protections → Unallowable charging protection":
367
368
369 In this section:
370
371 * Enable – a flag to enable the protection;
372 * Delay before setting the error, second;
373 * Delay before clearing the error, second;
374 * Lock the error until the device is reset.
375
376 If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
377
378 Error generation conditions:
379
380 * the charging relay is open and the battery current is not zero during the “Delay before setting the error” time.
381
382 Conditions for removing the error:
383
384 * the battery current is zero during the “Delay before clearing the error” time.
385
386 (% class="box infomessage" %)
387 (((
388 If there is the "Unallowable charging" error, the discharging relay opens.
389 )))
390
391 == 3.6.13 Stuck contactor protection ==
392
393 The BMS Main 2.x protects contactors against sticking.
394
395 To change the protection parameters against sticking, select the menu "Protections → Stuck contactor protection":
396
397
398 In this section:
399
400 * Enable – a flag to enable the protection;
401 * Delay before setting the error, second;
402 * Delay before clearing the error, second;
403 * Lock the error until the device is reset;
404
405 If there is a stuck contactor, the “Stuck contactor” error is generated.
406
407 Error generation conditions:
408
409 * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
410
411 == 3.6.14 Contactor feedback check ==
412
413 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).
414
415 To change the contactor feedback check parameters, select the menu "Protections → Contactor feedback check":
416
417
418 In this section:
419
420 * Enable – a flag to enable the protection;
421 * Delay before setting the error, second;
422 * Delay before clearing the error, second;
423 * Lock the error until the device is reset;
424
425 If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
426
427 * discrete output of charging, precharge, discharging, charging/discharging or main contactor not matches its feedback value.
428
429 == 3.6.15 Charging contactor cycles protection ==
430
431 The BMS protects the charging contactor against frequent switching.
432
433 To change the protection parameters against high frequency switching of the charging contactor, select the menu "Protections → Charging contactor cycles protection":
434
435
436 In this section:
437
438 * Enable – a flag to enable the protection;
439 * Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
440 * Period – a time in which the BMS counts switchings of the charging contactor, second;
441 * Delay before setting the error, second;
442 * Delay before clearing the error, second;
443 * Lock the error until the device is reset;
444 * Cycles – a number of the charging contactor switchings made during battery operation.
445
446 If there is the high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
447
448 Error generation conditions:
449
450 * 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.
451
452 Conditions for removing the error:
453
454 * the “Delay before clearing the error” time has passed since the error was generated.
455
456 (% class="box infomessage" %)
457 (((
458 If there is the "CH contactor cycles error" error, the charging relay opens.
459 )))
460
461 == 3.6.16 Discharging contactor cycles protection ==
462
463 The BMS protects the discharging contactor against frequent switching.
464
465 To change the protection parameters against high frequency switching of the discharging contactor, select the menu "Protections → Discharging contactor cycles protection":
466
467
468 In this section:
469
470 * Enable – a flag to enable the protection;
471 * Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
472 * Period – a time in which the BMS counts switchings of the charging contactor, second;
473 * Delay before setting the error, second;
474 * Delay before clearing the error, second;
475 * Lock the error until the device is reset;
476 * Cycles – a number of the charging contactor switchings made during battery operation.
477
478 If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
479
480 Error generation conditions:
481
482 * 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.
483
484 Conditions for removing the error:
485
486 * the “Delay before clearing the error” time has passed since the error was generated.
487
488 (% class="box infomessage" %)
489 (((
490 If there is the "DCH contactor cycles error" error, the discharging relay opens.
491 )))
492
493 == 3.6.17 Temperature sensor error ==
494
495 The board is implemented to check the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
496
497 To change the protection parameters of the temperature sensors circuits, select the menu "Protections → Temperature sensor error":
498
499
500 In this section:
501
502 * Enable – a flag to enable the protection;
503 * Delay before setting the error, second;
504 * Delay before clearing the error, second;
505 * Lock the error until the device is reset.
506
507 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.
508
509 (% class="box warningmessage" %)
510 (((
511 **If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the “Critical error” is generated and all relays open.**
512 )))
513
514 == 3.6.18 Logic high temperature protection ==
515
516 To change the overheating protection parameters of BMS Logic boards, select the menu "Protections → Logic high temperature protection":
517
518
519 In this section:
520
521 * Enable – a flag to enable the protection;
522 * Maximum Logic temperature, °C;
523 * Tolerant Logic temperature, °C;
524 * Lock the error until the device is reset.
525
526 As a result of the operation of the protection from high temperatures of BMS Logic boards, the "Logic high temperature" is generated.
527
528 Error generation conditions:
529
530 * a BMS Logic board temperature is higher than the “Maximum Logic temperature” value.
531
532 Conditions for removing the error:
533
534 * a BMS Logic board temperature is less than the “Tolerant Logic temperature” value.
535
536 (% class="box infomessage" %)
537 (((
538 **Cell balancing is prohibited for overheated boards.**
539 )))
540
541 == 3.6.19 Logic offline protection ==
542
543 To change the protection parameters from loss of communication with BMS Logic boards, select the menu "Protections → Logic offline protection":
544
545
546 In this section:
547
548 * Enable – a flag to enable the protection;
549 * Lock the error until the device is reset.
550
551 As a result of the protection from loss of communication with BMS Logic boards, the "Logic offline" error is generated.
552
553 Error generation conditions:
554
555 * 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.
556
557 Conditions for removing the error:
558
559 * all connected BMS Logic boards respond to the commands of the BMS Main 2.x board.
560
561 (% class="box warningmessage" %)
562 (((
563 **If there is the "Logic offline" error, the “Critical error” is generated and all relays open.**
564 )))
565
566 == 3.6.20 Cell count protection ==
567
568 To change the protection parameters from the mismatch of the number of cells to the set value, select the menu "Protections → Cell count protection":
569
570
571 In this section:
572
573 * Enable – a flag to enable the protection;
574 * Cell count – a number of cells connected to the BMS;
575 * Delay before setting the error, second;
576 * Delay before clearing the error, second;
577 * Lock the error until the device is reset.
578
579 As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
580
581 Error generation conditions:
582
583 * the number of cells connected to the BMS is **not equal** to the “Cell count” value during the “Delay before setting the error” time.
584
585 Conditions for removing the error:
586
587 * the number of cells connected to the BMS is **equal** to the “Cell count” value during the “Delay before clearing the error” time.
588
589 (% class="box warningmessage" %)
590 (((
591 **If there is the "Cell count error", the “Critical error” is generated and all relays open.**
592 )))
593
594 == 3.6.21 Logic count protection ==
595
596 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":
597
598
599 In this section:
600
601 * Enable – a flag to enable the protection;
602 * Logic count – a number of BMS Logic boards connected to the BMS Main 2.x;
603 * 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);
604 * Lock the error until the device is reset.
605
606 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.
607
608 Error generation conditions:
609
610 * the number of BMS Logic boards connected to the BMS Main 2.x is **not equal** to the “Logic count” value.
611
612 Conditions for removing the error:
613
614 * the number of BMS Logic boards connected to the BMS Main is **equal** to the “Logic count” value.
615
616 (% class="box warningmessage" %)
617 (((
618 **If there is the "Logic count error", the “Critical error” is generated and all relays open.**
619 )))
620
621 == 3.6.22 WDT protection ==
622
623 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.
624
625 To change the parameters of the watchdog protection, select the menu "Protections → WDT protection":
626
627
628 In this section:
629
630 * Enable – a flag to enable the protection;
631 * Delay before clearing the error, second;
632 * Lock the error until the device is reset.
633
634 Conditions for removing the error:
635
636 * the “Delay before clearing the error” time has passed from the board startup.
637
638 (% class="box warningmessage" %)
639 (((
640 **If there is the "WDT reset" error, the “Critical error” is generated and all relays open.**
641 )))
642
643 == 3.6.23 Insulation monitoring ==
644
645 BMS Main 2.x can detect a signal from an external insulation monitoring device (such as Bender IR155) to monitor the insulation quality.
646
647 To change the insulation monitoring parameters, select the menu "Protections → Insulation monitoring":
648
649
650 In this section:
651
652 * Enable – a flag to enable the protection;
653 * Delay before setting the error, second;
654 * Delay before clearing the error, second;
655 * Lock the error until the device is reset.
656
657 Error is set if corresponding discrete input is set up and it received logical zero.
658
659 == 3.6.24 Critical error parameters ==
660
661 To change the critical error parameters, select the menu "Protections → Critical error parameters":
662
663
664 In this section:
665
666 * Enable – a flag to enable the protection;
667 * Delay before setting the error, second;
668 * Delay before clearing the error, second;
669 * Lock the error until the device is reset.
670
671 The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
672
673 * “Battery cover error”;
674 * “Water”;
675 * “Logic offline”;
676 * “Cell count error”;
677 * “Logic count error”;
678 * “ADC error”;
679 * “No temp. sensors”;
680 * “Temp. sensor is shorted”;
681 * “Current sensor error”;
682 * “Shunt offline”;
683 * “Shunt error”;
684 * “Settings error”;
685 * “WDT reset”.
686
687 The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
688
689 (% class="box warningmessage" %)
690 (((
691 **If there is the “Critical error”, all relays open.**
692 )))
693
694 == 3.6.25 General error parameters ==
695
696 == 3.6.26 Low SOC signal ==
697
698 To change the parameters of the generation a signal about low battery level, select the menu "Protections → Low SOC signal":
699
700
701 In this section:
702
703 * Enable – a flag to enable signal generation;
704 * Minimum SOC, %;
705 * Tolerant SOC, %;
706 * Delay before setting the signal, second;
707 * Delay before clearing the signal, second;
708 * Lock the signal until the device is reset.
709
710 Signal generation conditions:
711
712 * the battery SOC is less than the “Minimum SOC” value during the “Delay before setting the signal” time.
713
714 Conditions for clearing the signal:
715
716 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
717
718 The "Low SOC signal" is //indicative //and can be linked to any discrete output of the board.
719
720 == 3.6.27 High charging current signal ==
721
722 To change the parameters of the generation high-current signal, select the menu "Protections → High charging current signal":
723
724
725 In this section:
726
727 * Enable – a flag to enable signal generation;
728 * Maximum charging current, А;
729 * Tolerant charging current, А;
730 * Delay before setting the signal, second;
731 * Delay before clearing the signal, second;
732 * Lock the signal until the device is reset.
733
734 Signal generation conditions:
735
736 * the measured current is greater than the “Maximum charging current” value during the “Delay before setting the signal” time.
737
738 Conditions for clearing the signal:
739
740 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
741
742 The "High charging current" signal is //indicative //and can be linked to any discrete output of the board.
743
744 == 3.6.28 Heater control ==
745
746 To change the parameters of the heater control algorithm, select the menu "Protections → Heater control":
747
748
749 In this section:
750
751 * Enable – a flag to enable heater control;
752 * Minimum cell temperature, °C;
753 * Tolerant cell temperature, °C;
754 * Delay before setting the signal, second;
755 * Delay before clearing the signal, second;
756 * Lock the signal until the device is reset;
757 * Switch off the heater relay on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
758
759 As a result of operating the heating algorithm, the “Heater” signal is generated.
760
761 Conditions of signal generation:
762
763 * 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.
764
765 Conditions for clearing the signal:
766
767 * 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.
768
769 (% class="box infomessage" %)
770 (((
771 If there is the "Heater" signal, the heater relay closes and/or a signal is output to the corresponded digital output.
772 )))
773
774 == 3.6.29 Heater (AUX) control ==
775
776 To change the parameters of the auxiliary heater control algorithm, select the menu "Protections → Heater (AUX) control":
777
778
779 In this section:
780
781 * Enable – a flag to enable heater control;
782 * Minimum cell temperature, °C;
783 * Tolerant cell temperature, °C;
784 * Delay before setting the signal, second;
785 * Delay before clearing the signal, second;
786 * Lock the signal until the device is reset;
787 * Switch off the heater relay on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
788
789 As a result of operating the heating algorithm, the “Heater (AUX)” signal is generated.
790
791 Conditions of signal generation:
792
793 * 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.
794
795 Conditions for clearing the signal:
796
797 * 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.
798
799 (% class="box infomessage" %)
800 (((
801 If there is the "Heater (AUX)" signal, the auxiliary heater relay closes and/or a signal is output to the corresponded digital output.
802 )))
803
804 == 3.6.30 Cooler control ==
805
806 To change the parameters of the cooler control algorithm, select the menu "Protections → Cooler control":
807
808
809 In this section:
810
811 * Enable – a flag to enable cooler control;
812 * Maximum cell temperature, °C;
813 * Tolerant cell temperature, °C;
814 * Delay before setting the signal, second;
815 * Delay before clearing the signal, second;
816 * Lock the signal until the device is reset;
817 * Switch off the cooler relay on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
818
819 As a result of operating the cooling algorithm, the "Cooler" signal is generated.
820
821 Conditions of signal generation:
822
823 * 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.
824
825 Conditions for clearing the signal:
826
827 * 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.
828
829 (% class="box infomessage" %)
830 (((
831 If there is the "Cooler" signal, the cooler relay closes and/or a signal is output to the corresponded digital output.
832 )))
833
834 == 3.6.31 Fault simulation ==
835
836 The board provides the ability to manually generate error flags bypassing the protection algorithms. This functionality is intended for commissioning.
837
838 To simulate battery and BMS errors, select the menu "Protections → Fault simulation":
839
840
841 In this section:
842
843 * Overcurrent;
844 * Undervoltage;
845 * Overvoltage;
846 * Low CH temperature;
847 * Low DCH temperature;
848 * High CH temperature;
849 * High DCH temperature;
850 * Battery cover error;
851 * High humidity;
852 * Water;
853 * Current sensor error;
854 * Short circuit;
855 * Contactor high temperature;
856 * Unallowable charging;
857 * Stuck contactor;
858 * CH contactor feedback error;
859 * DCH contactor feedback error;
860 * PCH contactor feedback error;
861 * CH/DCH contactor feedback error;
862 * Main contactor feedback error;
863 * CH contactor cycles error;
864 * DCH contactor cycles error;
865 * Logic high temperature;
866 * Logic offline;
867 * Cell count error;
868 * Logic count error;
869 * Insulation error;
870 * Critical error;
871 * Low SOC;
872 * High charging current;
873 * Heater;
874 * Cooler.
875
876 To simulate errors, set the necessary flags and click on the "Save" button.