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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 35.2
edited by Admin
on 2025/08/22 14:06
Change comment: There is no comment for this version
To version 51.8
edited by Admin
on 2026/04/01 08:35
Change comment: There is no comment for this version

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... ... @@ -4,7 +4,7 @@
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
6 6  
7 -The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
7 +The BMS Main 3 / BMS Main 2R device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 9  (% class="box errormessage" %)
10 10  (((
... ... @@ -14,7 +14,7 @@
14 14  
15 15  === Overcurrent ===
16 16  
17 -The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
17 +The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
18 18  
19 19  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
20 20  
... ... @@ -22,14 +22,14 @@
22 22  
23 23  In this section:
24 24  
25 -* Enable – a flag to enable the protection;
26 -* Maximum charging current, А;
27 -* Tolerant charging current, А;
28 -* Maximum discharging current, А;
29 -* Tolerant discharging current, А;
30 -* Delay before setting the error, millisecond;
31 -* Delay before clearing the error, second;
32 -* Lock – a flag to block the error until the device is restarted.
25 +* **Enable **– a flag to enable the protection;
26 +* **Maximum charging current**, А;
27 +* **Tolerant charging current**, А;
28 +* **Maximum discharging current**, А;
29 +* **Tolerant discharging current**, А;
30 +* **Delay before setting the error**, millisecond;
31 +* **Delay before clearing the error**, second;
32 +* **Lock **– a flag to block the error until the device is restarted.
33 33  
34 34  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
35 35  
... ... @@ -45,7 +45,7 @@
45 45  
46 46  === Charge current limit ===
47 47  
48 -The BMS Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48 +The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
49 49  
50 50  Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
51 51  
... ... @@ -53,17 +53,17 @@
53 53  
54 54  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
55 55  
56 -* Enable – a flag to enable the protection;
57 -* Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 -* Region 1: Current difference – a value of maximum absolute current difference, A;
59 -* Region 2: Current difference – a value of maximum relative current excess, A;
60 -* Delay before setting the error, millisecond;
61 -* Delay before clearing the error, second;
62 -* Lock – a flag to block the error until the device is restarted.
56 +* **Enable **– a flag to enable the protection;
57 +* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 +* **Region 1: Current difference** – a value of maximum absolute current difference, A;
59 +* **Region 2: Current difference** – a value of maximum relative current excess, A;
60 +* **Delay before setting the error**, millisecond;
61 +* **Delay before clearing the error**, second;
62 +* **Lock **– a flag to block the error until the device is restarted.
63 63  
64 64  === Discharge current limit ===
65 65  
66 -The BMS Main 3 device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
66 +The BMS Main 3 / BMS Main 2R device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
67 67  
68 68  Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
69 69  
... ... @@ -73,17 +73,17 @@
73 73  
74 74  In this section:
75 75  
76 -* Enable – a flag to enable the protection;
77 -* Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A;
78 -* Region 1: Current difference – a value of maximum absolute current difference, A;
79 -* Region 2: Current difference – a value of maximum relative current excess, A;
80 -* Delay before setting the error, millisecond;
81 -* Delay before clearing the error, second;
82 -* Lock – a flag to block the error until the device is restarted.
76 +* **Enable **– a flag to enable the protection;
77 +* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
78 +* **Region 1: Current difference** – a value of maximum absolute current difference, A;
79 +* **Region 2: Current difference** – a value of maximum relative current excess, A;
80 +* **Delay before setting the error**, millisecond;
81 +* **Delay before clearing the error**, second;
82 +* **Lock **– a flag to block the error until the device is restarted.
83 83  
84 84  === Undervoltage ===
85 85  
86 -The BMS Main 3 device implements battery protection from too low voltage on the cells.
86 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
87 87  
88 88  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
89 89  
... ... @@ -91,13 +91,13 @@
91 91  
92 92  In this section:
93 93  
94 -* Enable – a flag to enable the protection;
95 -* Minimum cell voltage, V;
96 -* Tolerant cell voltage, V;
97 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
98 -* Delay before setting the error, millisecond;
99 -* Delay before clearing the error, second;
100 -* Lock – a flag to block the error until the device is restarted.
94 +* **Enable **– a flag to enable the protection;
95 +* **Minimum cell voltage**, V;
96 +* **Tolerant cell voltage**, V;
97 +* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
98 +* **Delay before setting the error**, millisecond;
99 +* **Delay before clearing the error**, second;
100 +* **Lock **– a flag to block the error until the device is restarted.
101 101  
102 102  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
103 103  
... ... @@ -111,7 +111,7 @@
111 111  
112 112  === Overvoltage ===
113 113  
114 -The BMS Main 3 device implements battery protection from too high voltage on the cells.
114 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high voltage on the cells.
115 115  
116 116  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
117 117  
... ... @@ -119,13 +119,13 @@
119 119  
120 120  In this section:
121 121  
122 -* Enable – a flag to enable the protection;
123 -* Maximum cell voltage, V;
124 -* Tolerant cell voltage, V;
125 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
126 -* Delay before setting the error, millisecond;
127 -* Delay before clearing the error, second;
128 -* Lock – a flag to block the error until the device is restarted.
122 +* **Enable **– a flag to enable the protection;
123 +* **Maximum cell voltage**, V;
124 +* **Tolerant cell voltage**, V;
125 +* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
126 +* **Delay before setting the error**, millisecond;
127 +* **Delay before clearing the error**, second;
128 +* **Lock **– a flag to block the error until the device is restarted.
129 129  
130 130  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
131 131  
... ... @@ -137,9 +137,34 @@
137 137  
138 138  * 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.
139 139  
140 +=== Cell imbalance ===
141 +
142 +The BMS Main 3 / BMS Main 2R device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 +
144 +To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 +
146 +[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
147 +
148 +* **Enable **– a flag to enable the protection;
149 +* **Maximum cell imbalance**, V;
150 +* **Tolerant cell imbalance**, V;
151 +* **Delay before setting the error**, millisecond;
152 +* **Delay before clearing the error**, second;
153 +* **Lock **– a flag to block the error until the device is restarted.
154 +
155 +As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
156 +
157 +Error generation conditions:
158 +
159 +* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
160 +
161 +Conditions for removing the error:
162 +
163 +* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
164 +
140 140  === Low temperature ===
141 141  
142 -The BMS Main 3 device implements battery protection from too low temperature.
167 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low temperature.
143 143  
144 144  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
145 145  
... ... @@ -147,14 +147,14 @@
147 147  
148 148  In this section:
149 149  
150 -* Enable – a flag to enable the protection;
151 -* Minimum charge temperature, °C;
152 -* Tolerant charge temperature, °C;
153 -* Minimum discharge temperature, °C;
154 -* Tolerant discharge temperature, °C;
155 -* Delay before setting the error, millisecond;
156 -* Delay before clearing the error, second;
157 -* Lock – a flag to block the error until the device is restarted.
175 +* **Enable **– a flag to enable the protection;
176 +* **Minimum charge temperature**, °C;
177 +* **Tolerant charge temperature**, °C;
178 +* **Minimum discharge temperature**, °C;
179 +* **Tolerant discharge temperature**, °C;
180 +* **Delay before setting the error**, millisecond;
181 +* **Delay before clearing the error**, second;
182 +* **Lock **– a flag to block the error until the device is restarted.
158 158  
159 159  As a result of the operation of the battery protection from low temperature, the "Low temperature (CH)" and/or “Low temperature (DCH)” error are generated.
160 160  
... ... @@ -168,7 +168,7 @@
168 168  
169 169  === High temperature ===
170 170  
171 -The BMS Main 3 device implements battery protection from too high temperature.
196 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high temperature.
172 172  
173 173  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
174 174  
... ... @@ -176,14 +176,14 @@
176 176  
177 177  In this section:
178 178  
179 -* Enable – a flag to enable the protection;
180 -* Maximum charge temperature, °C;
181 -* Tolerant charge temperature, °C;
182 -* Maximum discharge temperature, °C;
183 -* Tolerant discharge temperature, °C;
184 -* Delay before setting the error, millisecond;
185 -* Delay before clearing the error, second;
186 -* Lock – a flag to block the error until the device is restarted.
204 +* **Enable **– a flag to enable the protection;
205 +* **Maximum charge temperature**, °C;
206 +* **Tolerant charge temperature**, °C;
207 +* **Maximum discharge temperature**, °C;
208 +* **Tolerant discharge temperature**, °C;
209 +* **Delay before setting the error**, millisecond;
210 +* **Delay before clearing the error**, second;
211 +* **Lock **– a flag to block the error until the device is restarted.
187 187  
188 188  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
189 189  
... ... @@ -203,10 +203,10 @@
203 203  
204 204  In this section:
205 205  
206 -* Enable – a flag to enable the protection;
207 -* Delay before setting the error, millisecond;
208 -* Delay before clearing the error, second;
209 -* Lock – a flag to block the error until the device is restarted.
231 +* **Enable** – a flag to enable the protection;
232 +* **Delay before setting the error**, millisecond;
233 +* **Delay before clearing the error**, second;
234 +* **Lock **– a flag to block the error until the device is restarted.
210 210  
211 211  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
212 212  
... ... @@ -225,7 +225,7 @@
225 225  
226 226  === High humidity ===
227 227  
228 -The BMS Main 3 can detect that the battery is operating in high humidity conditions.
253 +The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
229 229  
230 230  To change the detection parameters, select the "Protections → High humidity" section:
231 231  
... ... @@ -233,12 +233,12 @@
233 233  
234 234  In this section:
235 235  
236 -* Enable – a flag to enable the detection;
237 -* Maximum humidity, RH%;
238 -* Tolerant humidity, RH%;
239 -* Delay before setting the error, second;
240 -* Delay before clearing the error, second;
241 -* Lock the error until the device is reset.
261 +* **Enable **– a flag to enable the detection;
262 +* **Maximum humidity**, RH%;
263 +* **Tolerant humidity**, RH%;
264 +* **Delay before setting the error**, second;
265 +* **Delay before clearing the error**, second;
266 +* **Lock **– a flag to block the error until the device is restarted.
242 242  
243 243  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
244 244  
... ... @@ -257,7 +257,7 @@
257 257  
258 258  === Water ===
259 259  
260 -The BMS Main 3 can protect the battery from working in very high humidity conditions.
285 +The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
261 261  
262 262  To change the protection parameters, select the "Protections → Water" section:
263 263  
... ... @@ -265,12 +265,12 @@
265 265  
266 266  In this section:
267 267  
268 -* Enable – a flag to enable the protection;
269 -* Maximum humidity, RH%;
270 -* Tolerant humidity, RH%;
271 -* Delay before setting the error, second;
272 -* Delay before clearing the error, second;
273 -* Lock – lock the error until the device is reset.
293 +* **Enable **– a flag to enable the protection;
294 +* **Maximum humidity**, RH%;
295 +* **Tolerant humidity**, RH%;
296 +* **Delay before setting the error**, second;
297 +* **Delay before clearing the error**, second;
298 +* **Lock **– lock the error until the device is reset.
274 274  
275 275  As a result of the operation of the battery protection from water, the "Water" error is generated.
276 276  
... ... @@ -295,12 +295,12 @@
295 295  
296 296  In this section:
297 297  
298 -* Enable – a flag to enable the protection;
299 -* Maximum temperature, °C;
300 -* Tolerant temperature, °C;
301 -* Delay before setting the error, second;
302 -* Delay before clearing the error, second;
303 -* Lock – lock the error until the device is reset.
323 +* **Enable **– a flag to enable the protection;
324 +* **Maximum temperature**, °C;
325 +* **Tolerant temperature**, °C;
326 +* **Delay before setting the error**, second;
327 +* **Delay before clearing the error**, second;
328 +* **Lock **– lock the error until the device is reset.
304 304  
305 305  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
306 306  
... ... @@ -326,10 +326,10 @@
326 326  
327 327  In this section:
328 328  
329 -* Enable – a flag to enable the protection;
330 -* Delay before setting the error, second;
331 -* Delay before clearing the error, second;
332 -* Lock – lock the error until the device is reset.
354 +* **Enable **– a flag to enable the protection;
355 +* **Delay before setting the error**, second;
356 +* **Delay before clearing the error**, second;
357 +* **Lock **– lock the error until the device is reset.
333 333  
334 334  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
335 335  
... ... @@ -354,11 +354,11 @@
354 354  
355 355  In this section:
356 356  
357 -* Enable – a flag to enable the protection;
358 -* Number of cells – a number of cells connected to the BMS;
359 -* Delay before setting the error, millisecond;
360 -* Delay before clearing the error, second;
361 -* Lock – a flag to block the error until the device is restarted.
382 +* **Enable** – a flag to enable the protection;
383 +* **Number of cells** – a number of cells connected to the BMS;
384 +* **Delay before setting the error**, millisecond;
385 +* **Delay before clearing the error**, second;
386 +* **Lock **– a flag to block the error until the device is restarted.
362 362  
363 363  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
364 364  
... ... @@ -383,25 +383,25 @@
383 383  
384 384  In this section:
385 385  
386 -* Enable – a flag to enable the protection;
387 -* Number of cells – a number of temperature sensors connected to the BMS;
388 -* Delay before setting the error, millisecond;
389 -* Delay before clearing the error, second;
390 -* Lock – a flag to block the error until the device is restarted.
411 +* **Enable **– a flag to enable the protection;
412 +* **Number of cells** – a number of temperature sensors connected to the BMS;
413 +* **Delay before setting the error**, millisecond;
414 +* **Delay before clearing the error**, second;
415 +* **Lock **– a flag to block the error until the device is restarted.
391 391  
392 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensocount error" is generated.
417 +As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
393 393  
394 394  Error generation conditions:
395 395  
396 -* the number of cells connected to the BMS is **not equal** to the “Number of cells” value during the “Delay before setting the error” time.
421 +* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
397 397  
398 398  Conditions for removing the error:
399 399  
400 -* the number of cells connected to the BMS is **equal** to the “Number of cells” value during the “Delay before clearing the error” time.
425 +* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
401 401  
402 402  (% class="box warningmessage" %)
403 403  (((
404 -If there is the "Cell count error", the **“Critical error” **is generated**.**
429 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
405 405  )))
406 406  
407 407  === Logic count ===
... ... @@ -408,24 +408,28 @@
408 408  
409 409  To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
410 410  
411 -[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
436 +[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
412 412  
413 413  In this section:
414 414  
415 -* Enable – a flag to enable the protection;
416 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
417 -* Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
418 -* Lock – lock the error until the device is reset.
440 +* **Enable **– a flag to enable the protection;
441 +* **Logic count** – a number of BMS Logic devices connected to the BMS Main;
442 +* **Scan fast** – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
443 +* **Delay before setting the error** – a delay before setting the error //during initialization//, millisecond;
444 +* **Delay before clearing the error **– a delay before clearing the error //during initialization//, second;
445 +* **Lock** – lock the error until the device is reset.
419 419  
420 420  As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
421 421  
422 422  Error generation conditions:
423 423  
424 -* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
451 +* during the initialization BMS Main 3 / BMS Main 2R have not found required number of BMS Logic devices during the "Delay before setting the error" time;
452 +* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
425 425  
426 426  Conditions for removing the error:
427 427  
428 -* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
456 +* during the initialization BMS Main 3 / BMS Main 2R have found required number of BMS Logic devices and the "Delay before setting the error" time has passed;
457 +* after the initialization the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
429 429  
430 430  (% class="box warningmessage" %)
431 431  (((
... ... @@ -434,7 +434,7 @@
434 434  
435 435  === Short circuit ===
436 436  
437 -The BMS Main 3 device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
466 +The BMS Main 3 / BMS Main 2R device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
438 438  
439 439  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
440 440  
... ... @@ -442,12 +442,12 @@
442 442  
443 443  In this section:
444 444  
445 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
446 -** Enable – a flag to enable the protection;
447 -** Maximum current, A;
448 -** Delay before setting the error, second;
449 -* Delay before clearing the error, second;
450 -* Lock – a flag to block the error until the device is restarted.
474 +* **Level 1, 2, 3** – three protection levels. The following parameters are configured at each level:
475 +** **Enable **– a flag to enable the protection;
476 +** **Maximum current**, A;
477 +** **Delay before setting the error**, second;
478 +* **Delay before clearing the error**, second;
479 +* **Lock **– a flag to block the error until the device is restarted.
451 451  
452 452  If there is a short circuit, the "Short circuit" error is generated.
453 453  
... ... @@ -461,7 +461,7 @@
461 461  
462 462  === High contactor temperature ===
463 463  
464 -The BMS Main 3 device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
493 +The BMS Main 3 / BMS Main 2R device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
465 465  
466 466  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
467 467  
... ... @@ -469,13 +469,13 @@
469 469  
470 470  In this section:
471 471  
472 -* Enable – a flag to enable the protection;
473 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
474 -* Maximum contactor temperature, °C;
475 -* Tolerant contactor temperature, °C;
476 -* Delay before setting the error, second;
477 -* Delay before clearing the error, second;
478 -* Lock – a flag to block the error until the device is restarted.
501 +* **Enable** – a flag to enable the protection;
502 +* **Thermistor **– a selection of which cell thermistor will be used as contactor temperature sensor;
503 +* **Maximum contactor temperature**, °C;
504 +* **Tolerant contactor temperature**, °C;
505 +* **Delay before setting the error**, second;
506 +* **Delay before clearing the error**, second;
507 +* **Lock **– a flag to block the error until the device is restarted.
479 479  
480 480  If there is a contactor overheat, the "High contactor temperature" error is generated.
481 481  
... ... @@ -489,7 +489,7 @@
489 489  
490 490  === Current sensor ===
491 491  
492 -The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
521 +The BMS Main 3 / BMS Main 2R device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
493 493  
494 494  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
495 495  
... ... @@ -497,13 +497,13 @@
497 497  
498 498  In this section:
499 499  
500 -* Enable – a flag to enable the protection;
501 -* Maximum voltage, V;
502 -* Minimum voltage, V;
503 -* Voltage hysteresis – a hysteresis value to clear the error, V;
504 -* Delay before setting the error, second;
505 -* Delay before clearing the error, second;
506 -* Lock – a flag to block the error until the device is restarted.
529 +* **Enable **– a flag to enable the protection;
530 +* **Maximum voltage**, V;
531 +* **Minimum voltage**, V;
532 +* **Voltage hysteresis** – a hysteresis value to clear the error, V;
533 +* **Delay before setting the error**, second;
534 +* **Delay before clearing the error**, second;
535 +* **Lock **– a flag to block the error until the device is restarted.
507 507  
508 508  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
509 509  
... ... @@ -523,6 +523,11 @@
523 523  
524 524  === Power switch ===
525 525  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
526 526  BMS Main 3 device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
527 527  
528 528  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -529,7 +529,7 @@
529 529  
530 530  In this section:
531 531  
532 -* Delay before clearing the error, second;
566 +* **Delay before clearing the error**, second;
533 533  * Lock – a flag to block the error until the device is restarted.
534 534  
535 535  The “Power switch error” occurs when the device detects a shortage in contactor coil control circuit or an overheating of the power switch. Error is removed when the temperature of power switch is normal during “Delay before clearing the error” time.
... ... @@ -541,6 +541,11 @@
541 541  
542 542  === Power fault ===
543 543  
578 +(% class="box warningmessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
582 +
544 544  BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
545 545  
546 546  (% class="box infomessage" %)
... ... @@ -571,7 +571,7 @@
571 571  
572 572  === Charge contactor cycles ===
573 573  
574 -The BMS Main 3 device protects the charging contactor against frequent switching.
613 +The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
575 575  
576 576  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
577 577  
... ... @@ -598,7 +598,7 @@
598 598  
599 599  === Discharge contactor cycles ===
600 600  
601 -The BMS Main 3 device protects the discharging contactor against frequent switching.
640 +The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
602 602  
603 603  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
604 604  
... ... @@ -625,7 +625,7 @@
625 625  
626 626  === Temperature sensors ===
627 627  
628 -The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
667 +The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
629 629  
630 630  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
631 631  
... ... @@ -695,7 +695,7 @@
695 695  
696 696  === Stuck contactor ===
697 697  
698 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
699 699  
700 700  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
701 701  
... ... @@ -721,7 +721,7 @@
721 721  
722 722  === Contactor feedback ===
723 723  
724 -The BMS Main 3 device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
763 +The BMS Main 3 / BMS Main 2R device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
725 725  
726 726  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
727 727  
... ... @@ -745,7 +745,7 @@
745 745  
746 746  === Insulation ===
747 747  
748 -The BMS Main 3 device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
787 +The BMS Main 3 / BMS Main 2R device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
749 749  
750 750  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
751 751  
... ... @@ -771,7 +771,7 @@
771 771  
772 772  === HVIL ===
773 773  
774 -The BMS Main 3 allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
813 +The BMS Main 3 / BMS Main 2R allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
775 775  
776 776  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
777 777  
... ... @@ -795,6 +795,37 @@
795 795  If there is the “HVIL error”, the **“Critical error”** is generated.
796 796  )))
797 797  
837 +=== Battery voltage ===
838 +
839 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
840 +
841 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
842 +
843 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
844 +
845 +In this section:
846 +
847 +* Enable – a flag to enable the protection;
848 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
849 +* Delay before setting the error, second;
850 +* Delay before clearing the error, second;
851 +* Lock – a flag to block the error until the device is restarted.
852 +
853 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
854 +
855 +Error generation conditions:
856 +
857 +* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
858 +
859 +Conditions for removing the error:
860 +
861 +* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
862 +
863 +(% class="box warningmessage" %)
864 +(((
865 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
866 +)))
867 +
798 798  === Critical error ===
799 799  
800 800  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
... ... @@ -801,7 +801,7 @@
801 801  
802 802  To change the critical error parameters, select the "Protections → Critical error" section:
803 803  
804 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
874 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
805 805  
806 806  In this section:
807 807  
... ... @@ -808,6 +808,7 @@
808 808  * Enable – a flag to enable the protection;
809 809  * Delay before setting the error, millisecond;
810 810  * Delay before clearing the error, second;
881 +* Errors 1, 2 to to ignore when setting the critical error;
811 811  * Lock – a flag to block the error until the device is restarted.
812 812  
813 813  The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
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