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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 9.1
edited by Admin
on 2024/12/26 14:46
Change comment: Uploaded new attachment "1735224377252-473.png", version {1}
To version 52.1
edited by Admin
on 2026/04/01 08:42
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... ... @@ -4,26 +4,32 @@
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 +(% class="box errormessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 -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.
12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
15 -[[image:1733328382376-958.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
21 +[[image:1735224601506-488.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
16 16  
17 17  In this section:
18 18  
19 -* Enable – a flag to enable the protection;
20 -* Maximum charging current, А;
21 -* Tolerant charging current, А;
22 -* Maximum discharging current, А;
23 -* Tolerant discharging current, А;
24 -* Delay before setting the error, millisecond;
25 -* Delay before clearing the error, second;
26 -* 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.
27 27  
28 28  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
29 29  
... ... @@ -37,22 +37,47 @@
37 37  * 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;
38 38  * the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
39 39  
40 -(% class="box infomessage" %)
41 -(((
42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 -)))
44 -
45 45  === Charge current limit ===
46 46  
47 -TBA
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.
48 48  
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 +
52 +To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 +
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 +
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 +
49 49  === Discharge current limit ===
50 50  
51 -TBA
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.
52 52  
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 +
70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
71 +
72 +[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
73 +
74 +In this section:
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.
83 +
53 53  === Undervoltage ===
54 54  
55 -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.
56 56  
57 57  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
58 58  
... ... @@ -60,13 +60,13 @@
60 60  
61 61  In this section:
62 62  
63 -* Enable – a flag to enable the protection;
64 -* Minimum cell voltage, V;
65 -* Tolerant cell voltage, V;
66 -* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
67 -* Delay before setting the error, millisecond;
68 -* Delay before clearing the error, second;
69 -* 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.
70 70  
71 71  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
72 72  
... ... @@ -78,29 +78,23 @@
78 78  
79 79  * 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.
80 80  
81 -(% class="box infomessage" %)
82 -(((
83 -If there is the "Undervoltage" error, the **discharging **contactor opens.
84 -)))
85 -
86 86  === Overvoltage ===
87 87  
88 -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.
89 89  
90 90  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
91 91  
92 -[[image:1733328382382-607.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
118 +[[image:1735224377252-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
93 93  
94 94  In this section:
95 95  
96 -* Enable – a flag to enable the protection;
97 -* Maximum cell voltage, V;
98 -* Tolerant cell voltage, V;
99 -* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
100 -* Delay before setting the error, millisecond;
101 -* Delay before clearing the error, second;
102 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
103 -* 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.
104 104  
105 105  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
106 106  
... ... @@ -112,14 +112,34 @@
112 112  
113 113  * 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.
114 114  
115 -(% class="box infomessage" %)
116 -(((
117 -If there is the "Overvoltage" error, the **charging** contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set).
118 -)))
140 +=== Cell imbalance ===
119 119  
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 +
120 120  === Low temperature ===
121 121  
122 -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.
123 123  
124 124  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
125 125  
... ... @@ -127,14 +127,14 @@
127 127  
128 128  In this section:
129 129  
130 -* Enable – a flag to enable the protection;
131 -* Minimum charge temperature, °C;
132 -* Tolerant charge temperature, °C;
133 -* Minimum discharge temperature, °C;
134 -* Tolerant discharge temperature, °C;
135 -* Delay before setting the error, millisecond;
136 -* Delay before clearing the error, second;
137 -* 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.
138 138  
139 139  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.
140 140  
... ... @@ -146,15 +146,9 @@
146 146  
147 147  * 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.
148 148  
149 -(% class="box infomessage" %)
150 -(((
151 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
152 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
153 -)))
154 -
155 155  === High temperature ===
156 156  
157 -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.
158 158  
159 159  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
160 160  
... ... @@ -162,14 +162,14 @@
162 162  
163 163  In this section:
164 164  
165 -* Enable – a flag to enable the protection;
166 -* Maximum charge temperature, °C;
167 -* Tolerant charge temperature, °C;
168 -* Maximum discharge temperature, °C;
169 -* Tolerant discharge temperature, °C;
170 -* Delay before setting the error, millisecond;
171 -* Delay before clearing the error, second;
172 -* 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.
173 173  
174 174  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
175 175  
... ... @@ -181,12 +181,6 @@
181 181  
182 182  * 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.
183 183  
184 -(% class="box infomessage" %)
185 -(((
186 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
187 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
188 -)))
189 -
190 190  === Battery cover ===
191 191  
192 192  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -195,10 +195,10 @@
195 195  
196 196  In this section:
197 197  
198 -* Enable – a flag to enable the protection;
199 -* Delay before setting the error, millisecond;
200 -* Delay before clearing the error, second;
201 -* 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.
202 202  
203 203  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
204 204  
... ... @@ -212,12 +212,12 @@
212 212  
213 213  (% class="box warningmessage" %)
214 214  (((
215 -If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
248 +If there is the "Battery cover error", the **“Critical error” **is generated**.**
216 216  )))
217 217  
218 218  === High humidity ===
219 219  
220 -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.
221 221  
222 222  To change the detection parameters, select the "Protections → High humidity" section:
223 223  
... ... @@ -225,12 +225,12 @@
225 225  
226 226  In this section:
227 227  
228 -* Enable – a flag to enable the detection;
229 -* Maximum humidity, RH%;
230 -* Tolerant humidity, RH%;
231 -* Delay before setting the error, second;
232 -* Delay before clearing the error, second;
233 -* 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.
234 234  
235 235  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
236 236  
... ... @@ -249,7 +249,7 @@
249 249  
250 250  === Water ===
251 251  
252 -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.
253 253  
254 254  To change the protection parameters, select the "Protections → Water" section:
255 255  
... ... @@ -257,12 +257,12 @@
257 257  
258 258  In this section:
259 259  
260 -* Enable – a flag to enable the protection;
261 -* Maximum humidity, RH%;
262 -* Tolerant humidity, RH%;
263 -* Delay before setting the error, second;
264 -* Delay before clearing the error, second;
265 -* 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.
266 266  
267 267  As a result of the operation of the battery protection from water, the "Water" error is generated.
268 268  
... ... @@ -274,9 +274,9 @@
274 274  
275 275  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
276 276  
277 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
278 278  (((
279 -If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
312 +If there is the “Water” error, the **“Critical error”** is generated.
280 280  )))
281 281  
282 282  === Logic high temperature ===
... ... @@ -287,12 +287,12 @@
287 287  
288 288  In this section:
289 289  
290 -* Enable – a flag to enable the protection;
291 -* Maximum temperature, °C;
292 -* Tolerant temperature, °C;
293 -* Delay before setting the error, second;
294 -* Delay before clearing the error, second;
295 -* 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.
296 296  
297 297  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
298 298  
... ... @@ -313,12 +313,15 @@
313 313  
314 314  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
315 315  
316 -[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
349 +[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
317 317  
351 +
318 318  In this section:
319 319  
320 -* Enable – a flag to enable the protection;
321 -* 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.
322 322  
323 323  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
324 324  
... ... @@ -332,7 +332,7 @@
332 332  
333 333  (% class="box warningmessage" %)
334 334  (((
335 -If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
371 +If there is the "Logic offline" error, the **“Critical error” **is generated**.**
336 336  )))
337 337  
338 338  === Cell count ===
... ... @@ -343,11 +343,11 @@
343 343  
344 344  In this section:
345 345  
346 -* Enable – a flag to enable the protection;
347 -* Number of cells – a number of cells connected to the BMS;
348 -* Delay before setting the error, millisecond;
349 -* Delay before clearing the error, second;
350 -* 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.
351 351  
352 352  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
353 353  
... ... @@ -361,55 +361,86 @@
361 361  
362 362  (% class="box warningmessage" %)
363 363  (((
364 -If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
400 +If there is the "Cell count error", the **“Critical error” **is generated**.**
365 365  )))
366 366  
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 +
367 367  === Logic count ===
368 368  
369 369  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:
370 370  
371 -[[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"]]
372 372  
373 373  In this section:
374 374  
375 -* Enable – a flag to enable the protection;
376 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
377 -* 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);
378 -* 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.
379 379  
380 380  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.
381 381  
382 382  Error generation conditions:
383 383  
384 -* 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.
385 385  
386 386  Conditions for removing the error:
387 387  
388 -* 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.
389 389  
390 390  (% class="box warningmessage" %)
391 391  (((
392 -If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
461 +If there is the "Logic count error", the **“Critical error”** is generated.
393 393  )))
394 394  
395 395  === Short circuit ===
396 396  
397 -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.
398 398  
399 399  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
400 400  
401 -[[image:1733328415733-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="210" width="800"]]
470 +[[image:1735224667621-969.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
402 402  
403 403  In this section:
404 404  
405 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
406 -** Enable – a flag to enable the protection;
407 -** Maximum current, A;
408 -** Delay before setting the error, second;
409 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "Short circuit" error occurs;
410 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Short circuit" error occurs;
411 -* Delay before clearing the error, second;
412 -* 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.
413 413  
414 414  If there is a short circuit, the "Short circuit" error is generated.
415 415  
... ... @@ -421,30 +421,23 @@
421 421  
422 422  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
423 423  
424 -(% class="box infomessage" %)
425 -(((
426 -If there is the "Short circuit" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error flag” is set).
427 -)))
428 -
429 429  === High contactor temperature ===
430 430  
431 -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.
432 432  
433 433  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
434 434  
435 -[[image:1733328415734-986.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
497 +[[image:1735224706573-347.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
436 436  
437 437  In this section:
438 438  
439 -* Enable – a flag to enable the protection;
440 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
441 -* Maximum contactor temperature, °C;
442 -* Tolerant contactor temperature, °C;
443 -* Delay before setting the error, second;
444 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "High contactor temperature" error occurs;
445 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "High contactor temperature" error occurs;
446 -* Delay before clearing the error, second;
447 -* 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.
448 448  
449 449  If there is a contactor overheat, the "High contactor temperature" error is generated.
450 450  
... ... @@ -456,14 +456,9 @@
456 456  
457 457  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
458 458  
459 -(% class="box infomessage" %)
460 -(((
461 -If there is the "High contactor temperature" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error” flag is set).
462 -)))
463 -
464 464  === Current sensor ===
465 465  
466 -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.
467 467  
468 468  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
469 469  
... ... @@ -471,13 +471,13 @@
471 471  
472 472  In this section:
473 473  
474 -* Enable – a flag to enable the protection;
475 -* Maximum voltage, V;
476 -* Minimum voltage, V;
477 -* Voltage hysteresis – a hysteresis value to clear the error, V;
478 -* Delay before setting the error, second;
479 -* Delay before clearing the error, second;
480 -* 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.
481 481  
482 482  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
483 483  
... ... @@ -492,11 +492,16 @@
492 492  
493 493  (% class="box warningmessage" %)
494 494  (((
495 -If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
550 +If there is the “Current sensor error”, the **“Critical error” **is generated.
496 496  )))
497 497  
498 498  === Power switch ===
499 499  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
500 500  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:
501 501  
502 502  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -503,23 +503,54 @@
503 503  
504 504  In this section:
505 505  
506 -* Delay before clearing the error, second;
507 -* Lock – a flag to block the error until the device is restarted.
566 +* **Delay before clearing the error**, second;
567 +* **Lock **– a flag to block the error until the device is restarted.
508 508  
509 509  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.
510 510  
511 511  (% class="box warningmessage" %)
512 512  (((
513 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
573 +If there is the "Power switch error", the **“Critical error” **is generated.
514 514  )))
515 515  
516 516  === Power fault ===
517 517  
518 -TBA
578 +(% class="box infomessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
519 519  
583 +BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
584 +
585 +(% class="box infomessage" %)
586 +(((
587 +**Note:** this error can be configured only under** "Service" account**.
588 +)))
589 +
590 +To change the parameters of the power fault error, select the "Protections → Power fault" section:
591 +
592 +[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
593 +
594 +In this section:
595 +
596 +* **Enable **– a flag to enable the protection;
597 +* **Delay before setting the error**, millisecond;
598 +* **Time to keep power off**, millisecond;
599 +* **Delay before clearing the error**, millisecond;
600 +* **Lock **– a flag to block the error until the device is restarted.
601 +
602 +The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again.
603 +
604 +Error is removed when the power consumption is normal during “Delay before clearing the error” time.
605 +
606 +(% class="box warningmessage" %)
607 +(((
608 +If there is the "Power fault", the **“Critical error” **is generated.
609 +)))
610 +
520 520  === Charge contactor cycles ===
521 521  
522 -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.
523 523  
524 524  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
525 525  
... ... @@ -527,12 +527,12 @@
527 527  
528 528  In this section:
529 529  
530 -* Enable – a flag to enable the protection;
531 -* Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
532 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
533 -* Delay before setting the error, millisecond;
534 -* Delay before clearing the error, second;
535 -* Lock – a flag to block the error until the device is restarted.
621 +* **Enable **– a flag to enable the protection;
622 +* **Cycles threshold **– a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
623 +* **Check time** – a time in which the BMS counts switching cycles of the charging contactor, second;
624 +* **Delay before setting the error**, millisecond;
625 +* **Delay before clearing the error**, second;
626 +* **Lock **– a flag to block the error until the device is restarted.
536 536  
537 537  If there is a high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
538 538  
... ... @@ -544,14 +544,9 @@
544 544  
545 545  * the “Delay before clearing the error” time has passed since the error was generated.
546 546  
547 -(% class="box infomessage" %)
548 -(((
549 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
550 -)))
551 -
552 552  === Discharge contactor cycles ===
553 553  
554 -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.
555 555  
556 556  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
557 557  
... ... @@ -559,12 +559,12 @@
559 559  
560 560  In this section:
561 561  
562 -* Enable – a flag to enable the protection;
563 -* Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
564 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
565 -* Delay before setting the error, millisecond;
566 -* Delay before clearing the error, second;
567 -* Lock – a flag to block the error until the device is restarted.
648 +* **Enable **– a flag to enable the protection;
649 +* **Cycles threshold** – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
650 +* **Check time** – a time in which the BMS counts switching cycles of the charging contactor, second;
651 +* **Delay before setting the error**, millisecond;
652 +* **Delay before clearing the error**, second;
653 +* **Lock **– a flag to block the error until the device is restarted.
568 568  
569 569  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
570 570  
... ... @@ -576,14 +576,9 @@
576 576  
577 577  * the “Delay before clearing the error” time has passed since the error was generated.
578 578  
579 -(% class="box infomessage" %)
580 -(((
581 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
582 -)))
583 -
584 584  === Temperature sensors ===
585 585  
586 -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.
587 587  
588 588  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
589 589  
... ... @@ -591,21 +591,21 @@
591 591  
592 592  In this section:
593 593  
594 -* Enable – a flag to enable the protection;
595 -* Delay before setting the error, millisecond;
596 -* Delay before clearing the error, second;
597 -* Lock – a flag to block the error until the device is restarted.
675 +* **Enable **– a flag to enable the protection;
676 +* **Delay before setting the error**, millisecond;
677 +* **Delay before clearing the error**, second;
678 +* **Lock **– a flag to block the error until the device is restarted.
598 598  
599 599  If there are no temperature sensors connected to any BMS Logic device or any temperature sensor of the BMS Logic 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.
600 600  
601 601  (% class="box warningmessage" %)
602 602  (((
603 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
684 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
604 604  )))
605 605  
606 606  === WDT reset ===
607 607  
608 -If the BMS firmware hangs, the watchdog timer resets the device. The BMS can detect that the device was reset and generates the “WDT reset” error.
689 +If the BMS Main 3 / BMS Main 2R firmware hangs, the watchdog timer resets the device. The BMS can detect that the device was reset and generates the “WDT reset” error.
609 609  
610 610  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
611 611  
... ... @@ -613,9 +613,9 @@
613 613  
614 614  In this section:
615 615  
616 -* Enable – a flag to enable the protection;
617 -* Delay before clearing the error, second;
618 -* Lock – a flag to block the error until the device is restarted.
697 +* **Enable **– a flag to enable the protection;
698 +* **Delay before clearing the error**, second;
699 +* **Lock **– a flag to block the error until the device is restarted.
619 619  
620 620  Conditions for removing the error:
621 621  
... ... @@ -623,12 +623,12 @@
623 623  
624 624  (% class="box warningmessage" %)
625 625  (((
626 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
707 +If there is the "WDT reset" error, the **“Critical error” **is generated.
627 627  )))
628 628  
629 629  === Unallowable charging ===
630 630  
631 -The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging contactor to prevent unallowable battery operation.
712 +The BMS Main 3 / BMS Main 2R device can detect that the battery is charging through the discharging circuit and protectively open the discharging contactor to prevent unallowable battery operation.
632 632  
633 633  To change the parameters of the unallowable charging protection, select the "Protections → Unallowable charging" section:
634 634  
... ... @@ -636,10 +636,10 @@
636 636  
637 637  In this section:
638 638  
639 -* Enable – a flag to enable the protection;
640 -* Delay before setting the error, second;
641 -* Delay before clearing the error, second;
642 -* Lock – a flag to block the error until the device is restarted.
720 +* **Enable **– a flag to enable the protection;
721 +* **Delay before setting the error**, second;
722 +* **Delay before clearing the error**, second;
723 +* **Lock** – a flag to block the error until the device is restarted.
643 643  
644 644  If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
645 645  
... ... @@ -651,14 +651,9 @@
651 651  
652 652  * the battery current is zero during the “Delay before clearing the error” time.
653 653  
654 -(% class="box infomessage" %)
655 -(((
656 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
657 -)))
658 -
659 659  === Stuck contactor ===
660 660  
661 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
662 662  
663 663  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
664 664  
... ... @@ -666,12 +666,12 @@
666 666  
667 667  In this section:
668 668  
669 -* Enable – a flag to enable the protection;
670 -* Delay before setting the error, millisecond;
671 -* Delay before clearing the error, second;
672 -* Check voltage – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
673 -* Abnormal voltage difference – the difference of voltages before and after contactors at which BMS indicates and error;
674 -* Lock – a flag to block the error until the device is restarted.
745 +* **Enable **– a flag to enable the protection;
746 +* **Delay before setting the error**, millisecond;
747 +* **Delay before clearing the error**, second;
748 +* **Check voltage** – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
749 +* **Abnormal voltage difference** – the difference of voltages before and after contactors at which BMS indicates and error;
750 +* **Lock **– a flag to block the error until the device is restarted.
675 675  
676 676  If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
677 677  
... ... @@ -679,12 +679,12 @@
679 679  
680 680  (% class="box warningmessage" %)
681 681  (((
682 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
758 +If there is the “Stuck contactor” error, the **“Critical error” **is generated.
683 683  )))
684 684  
685 685  === Contactor feedback ===
686 686  
687 -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 discrete input that is assigned to this specific contactor's feedback.
688 688  
689 689  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
690 690  
... ... @@ -692,10 +692,10 @@
692 692  
693 693  In this section:
694 694  
695 -* Enable – a flag to enable the protection;
696 -* Delay before setting the error, millisecond;
697 -* Delay before clearing the error, second;
698 -* Lock – a flag to block the error until the device is restarted.
771 +* **Enable **– a flag to enable the protection;
772 +* **Delay before setting the error**, millisecond;
773 +* **Delay before clearing the error**, second;
774 +* **Lock **– a flag to block the error until the device is restarted.
699 699  
700 700  If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
701 701  
... ... @@ -703,12 +703,12 @@
703 703  
704 704  (% class="box warningmessage" %)
705 705  (((
706 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
782 +If there is the “Contactor feedback” error, the **“Critical error” **is generated.
707 707  )))
708 708  
709 709  === Insulation ===
710 710  
711 -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.
712 712  
713 713  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
714 714  
... ... @@ -716,106 +716,128 @@
716 716  
717 717  In this section:
718 718  
719 -* Enable – a flag to enable the protection;
720 -* Checking algorithm – isolation checking mode:
721 -** Always on – check is always performed;
722 -** On charging – check is performed only if “Charger connected” or “Charge request” is set;
723 -** Except charging - check is performed only if “Charger connected” and “Charge request” are cleared;
724 -* Delay before setting the error, second;
725 -* Delay before clearing the error, second;
726 -* Lock – a flag to block the error until the device is restarted.
795 +* **Enable **– a flag to enable the protection;
796 +* **Checking algorithm** – isolation checking mode:
797 +** **Always on** – check is always performed;
798 +** **On charging** – check is performed only if “Charger connected” or “Charge request” is set;
799 +** **Except charging** – check is performed only if “Charger connected” and “Charge request” are cleared;
800 +* **Delay before setting the error**, second;
801 +* **Delay before clearing the error**, second;
802 +* **Lock **– a flag to block the error until the device is restarted.
727 727  
728 728  The “Insulation fault” is set if the “Insulation status” signal is detected during the “Delay before setting the error” time. The “Insulation status” signal can be received through the discrete input or by the CAN bus from an insulation monitoring device. The “Insulation fault” is cleared if the “Insulation status” signal is cleared during the “Delay before clearing the error” time.
729 729  
730 730  (% class="box warningmessage" %)
731 731  (((
732 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
808 +If there is the “Insulation fault”, the **“Critical error”** is generated.
733 733  )))
734 734  
735 735  === HVIL ===
736 736  
813 +(% class="box infomessage" %)
814 +(((
815 +This section is not available on BMS Main 2R.
816 +)))
817 +
737 737  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.
738 738  
739 739  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
740 740  
741 -[[image:1733328487099-371.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]
822 +[[image:1735224839441-185.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
742 742  
743 743  In this section:
744 744  
745 -* Enable – a flag to enable the protection;
746 -* Lock – a flag to block the error until the device is restarted.
826 +* **Enable **– a flag to enable the protection;
827 +* **Source is OFF: Lower current limit**, A;
828 +* **Source is OFF: Upper current limit**, A;
829 +* **Source is ON: Lower current limit**, A;
830 +* **Source is ON: Upper current limit**, A;
831 +* **Lock **– a flag to block the error until the device is restarted.
747 747  
748 -If interlock loop breaks, the “HVIL error” is generated. Error clears if interlock loop is being restored.
833 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
749 749  
835 +Error clears if interlock loop is being restored.
836 +
750 750  (% class="box warningmessage" %)
751 751  (((
752 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
839 +If there is the “HVIL error”, the **“Critical error”** is generated.
753 753  )))
754 754  
755 -=== Critical error ===
842 +=== Battery voltage ===
756 756  
757 -To change the critical error parameters, select the "Protections → Critical error" section:
844 +(% class="box infomessage" %)
845 +(((
846 +This section is not available on BMS Main 2R.
847 +)))
758 758  
759 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
849 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
760 760  
851 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
852 +
853 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
854 +
761 761  In this section:
762 762  
763 -* Enable – a flag to enable the protection;
764 -* Delay before setting the error, millisecond;
765 -* Delay before clearing the error, second;
766 -* Lock – a flag to block the error until the device is restarted.
857 +* **Enable **– a flag to enable the protection;
858 +* **Abnormal voltage difference** – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
859 +* **Delay before setting the error**, second;
860 +* **Delay before clearing the error**, second;
861 +* **Lock **– a flag to block the error until the device is restarted.
767 767  
768 -The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
863 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
769 769  
770 -* “Battery cover error”;
771 -* “Water”;
772 -* “Logic offline”;
773 -* “Cell count error”;
774 -* “ADC error”;
775 -* “Current sensor error”;
776 -* “Shunt offline”;
777 -* “Shunt error”;
778 -* “WDT reset”
779 -* “No temp. sensors”;
780 -* “Temperature sensor shorted”;
781 -* “Stuck contactor”;
782 -* “CH contactor feedback error”;
783 -* “DCH contactor feedback error”;
784 -* “Insulation fault”;
785 -* “PCH contactor feedback error”;
786 -* “CH/DCH contactor feedback error”;
787 -* “Main contactor feedback error”;
788 -* “High voltage fault”;
789 -* “Power switch error”;
790 -* “HVIL error”l
791 -* “Power fault”.
865 +Error generation conditions:
792 792  
793 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
867 +* 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.
794 794  
795 -(% class="box infomessage" %)
869 +Conditions for removing the error:
870 +
871 +* 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.
872 +
873 +(% class="box warningmessage" %)
796 796  (((
797 -If there is the “Critical error”, **all **contactors open.
875 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
798 798  )))
799 799  
878 +=== Critical error ===
879 +
880 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
881 +
882 +To change the critical error parameters, select the "Protections → Critical error" section:
883 +
884 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
885 +
886 +In this section:
887 +
888 +* **Enable **– a flag to enable the protection;
889 +* **Delay before setting the error**, millisecond;
890 +* **Delay before clearing the error**, second;
891 +* **Errors 1, 2 to to ignore when setting the critical error** – bitfields to enable check of corresponding errors.
892 +* **Lock **– a flag to block the error until the device is restarted.
893 +
894 +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.
895 +
896 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
897 +
800 800  === General error ===
801 801  
802 802  To change the general error parameters, select the "Protections → Critical error" section:
803 803  
804 -[[image:1733328487101-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
902 +[[image:1735224942262-497.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
805 805  
806 806  In this section:
807 807  
808 -* Enable – a flag to enable the protection;
809 -* Delay before setting the error, millisecond;
810 -* Delay before clearing the error, second;
811 -* Lock – a flag to block the error until the device is restarted;
812 -* Check: <error> – a flags to enable check of corresponding errors.
906 +* **Enable **– a flag to enable the protection;
907 +* **Delay before setting the error**, millisecond;
908 +* **Delay before clearing the error**, second;
909 +* **Lock **– a flag to block the error until the device is restarted;
910 +* **Errors 1, 2 to set the "Critical error"** – bitfields to enable check of corresponding errors.
813 813  
814 -The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
912 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
815 815  
816 816  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
817 817  
818 818  (% class="box infomessage" %)
819 819  (((
820 -The state of the “General error” can be output to a discrete output or a power switch.
918 +The state of the “General error” can be assigned to a discrete output or to a power switch.
821 821  )))
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