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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 34.1
edited by Admin
on 2025/08/22 14:05
Change comment: There is no comment for this version
To version 51.6
edited by Admin
on 2026/04/01 08:33
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  
... ... @@ -375,11 +375,40 @@
375 375  If there is the "Cell count error", the **“Critical error” **is generated**.**
376 376  )))
377 377  
403 +=== Temperature sensor count ===
404 +
405 +To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
406 +
407 +[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
408 +
409 +In this section:
410 +
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.
416 +
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.
418 +
419 +Error generation conditions:
420 +
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.
422 +
423 +Conditions for removing the error:
424 +
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.
426 +
427 +(% class="box warningmessage" %)
428 +(((
429 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
430 +)))
431 +
378 378  === Logic count ===
379 379  
380 380  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:
381 381  
382 -[[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"]]
383 383  
384 384  In this section:
385 385  
... ... @@ -386,6 +386,8 @@
386 386  * Enable – a flag to enable the protection;
387 387  * Logic count – a number of BMS Logic devices connected to the BMS Main;
388 388  * 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;
389 389  * Lock – lock the error until the device is reset.
390 390  
391 391  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.
... ... @@ -392,11 +392,13 @@
392 392  
393 393  Error generation conditions:
394 394  
395 -* 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.
396 396  
397 397  Conditions for removing the error:
398 398  
399 -* 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.
400 400  
401 401  (% class="box warningmessage" %)
402 402  (((
... ... @@ -405,7 +405,7 @@
405 405  
406 406  === Short circuit ===
407 407  
408 -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.
409 409  
410 410  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
411 411  
... ... @@ -432,7 +432,7 @@
432 432  
433 433  === High contactor temperature ===
434 434  
435 -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.
436 436  
437 437  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
438 438  
... ... @@ -460,7 +460,7 @@
460 460  
461 461  === Current sensor ===
462 462  
463 -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.
464 464  
465 465  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
466 466  
... ... @@ -494,7 +494,7 @@
494 494  
495 495  === Power switch ===
496 496  
497 -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:
555 +BMS Main 3 / BMS Main 2R 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:
498 498  
499 499  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
500 500  
... ... @@ -512,7 +512,7 @@
512 512  
513 513  === Power fault ===
514 514  
515 -BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
573 +BMS Main 3 / BMS Main 2R device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
516 516  
517 517  (% class="box infomessage" %)
518 518  (((
... ... @@ -542,7 +542,7 @@
542 542  
543 543  === Charge contactor cycles ===
544 544  
545 -The BMS Main 3 device protects the charging contactor against frequent switching.
603 +The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
546 546  
547 547  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
548 548  
... ... @@ -569,7 +569,7 @@
569 569  
570 570  === Discharge contactor cycles ===
571 571  
572 -The BMS Main 3 device protects the discharging contactor against frequent switching.
630 +The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
573 573  
574 574  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
575 575  
... ... @@ -596,7 +596,7 @@
596 596  
597 597  === Temperature sensors ===
598 598  
599 -The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
657 +The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
600 600  
601 601  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
602 602  
... ... @@ -666,7 +666,7 @@
666 666  
667 667  === Stuck contactor ===
668 668  
669 -The BMS Main 3 device protects contactors against sticking.
727 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
670 670  
671 671  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
672 672  
... ... @@ -692,7 +692,7 @@
692 692  
693 693  === Contactor feedback ===
694 694  
695 -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.
753 +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.
696 696  
697 697  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
698 698  
... ... @@ -716,7 +716,7 @@
716 716  
717 717  === Insulation ===
718 718  
719 -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.
777 +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.
720 720  
721 721  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
722 722  
... ... @@ -742,7 +742,7 @@
742 742  
743 743  === HVIL ===
744 744  
745 -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.
803 +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.
746 746  
747 747  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
748 748  
... ... @@ -766,6 +766,37 @@
766 766  If there is the “HVIL error”, the **“Critical error”** is generated.
767 767  )))
768 768  
827 +=== Battery voltage ===
828 +
829 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
830 +
831 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
832 +
833 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
834 +
835 +In this section:
836 +
837 +* Enable – a flag to enable the protection;
838 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
839 +* Delay before setting the error, second;
840 +* Delay before clearing the error, second;
841 +* Lock – a flag to block the error until the device is restarted.
842 +
843 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
844 +
845 +Error generation conditions:
846 +
847 +* 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.
848 +
849 +Conditions for removing the error:
850 +
851 +* 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.
852 +
853 +(% class="box warningmessage" %)
854 +(((
855 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
856 +)))
857 +
769 769  === Critical error ===
770 770  
771 771  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
... ... @@ -772,7 +772,7 @@
772 772  
773 773  To change the critical error parameters, select the "Protections → Critical error" section:
774 774  
775 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
864 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
776 776  
777 777  In this section:
778 778  
... ... @@ -779,6 +779,7 @@
779 779  * Enable – a flag to enable the protection;
780 780  * Delay before setting the error, millisecond;
781 781  * Delay before clearing the error, second;
871 +* Errors 1, 2 to to ignore when setting the critical error;
782 782  * Lock – a flag to block the error until the device is restarted.
783 783  
784 784  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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