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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 6.1
edited by Admin
on 2024/12/24 18:36
Change comment: There is no comment for this version
To version 52.1
edited by Admin
on 2026/04/01 08:42
Change comment: There is no comment for this version

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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  
... ... @@ -37,27 +37,61 @@
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 -)))
46 +=== Charge current limit ===
44 44  
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 +
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 +
64 +=== Discharge current limit ===
65 +
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 +
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 +
45 45  === Undervoltage ===
46 46  
47 -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.
48 48  
49 49  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
50 50  
51 -[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
90 +[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
52 52  
53 53  In this section:
54 54  
55 -* Enable – a flag to enable the protection;
56 -* Minimum cell voltage, V;
57 -* Tolerant cell voltage, V;
58 -* Delay before setting the error, millisecond;
59 -* Delay before clearing the error, second;
60 -* 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.
61 61  
62 62  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
63 63  
... ... @@ -69,28 +69,23 @@
69 69  
70 70  * 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.
71 71  
72 -(% class="box infomessage" %)
73 -(((
74 -If there is the "Undervoltage" error, the **discharging **contactor opens.
75 -)))
76 -
77 77  === Overvoltage ===
78 78  
79 -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.
80 80  
81 81  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
82 82  
83 -[[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"]]
84 84  
85 85  In this section:
86 86  
87 -* Enable – a flag to enable the protection;
88 -* Maximum cell voltage, V;
89 -* Tolerant cell voltage, V;
90 -* Delay before setting the error, millisecond;
91 -* Delay before clearing the error, second;
92 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
93 -* 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.
94 94  
95 95  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
96 96  
... ... @@ -102,14 +102,34 @@
102 102  
103 103  * 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.
104 104  
105 -(% class="box infomessage" %)
106 -(((
107 -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).
108 -)))
140 +=== Cell imbalance ===
109 109  
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 +
110 110  === Low temperature ===
111 111  
112 -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.
113 113  
114 114  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
115 115  
... ... @@ -117,14 +117,14 @@
117 117  
118 118  In this section:
119 119  
120 -* Enable – a flag to enable the protection;
121 -* Minimum charge temperature, °C;
122 -* Tolerant charge temperature, °C;
123 -* Minimum discharge temperature, °C;
124 -* Tolerant discharge temperature, °C;
125 -* Delay before setting the error, millisecond;
126 -* Delay before clearing the error, second;
127 -* 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.
128 128  
129 129  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.
130 130  
... ... @@ -136,15 +136,9 @@
136 136  
137 137  * 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.
138 138  
139 -(% class="box infomessage" %)
140 -(((
141 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
142 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
143 -)))
144 -
145 145  === High temperature ===
146 146  
147 -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.
148 148  
149 149  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
150 150  
... ... @@ -152,14 +152,14 @@
152 152  
153 153  In this section:
154 154  
155 -* Enable – a flag to enable the protection;
156 -* Maximum charge temperature, °C;
157 -* Tolerant charge temperature, °C;
158 -* Maximum discharge temperature, °C;
159 -* Tolerant discharge temperature, °C;
160 -* Delay before setting the error, millisecond;
161 -* Delay before clearing the error, second;
162 -* 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.
163 163  
164 164  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
165 165  
... ... @@ -171,12 +171,6 @@
171 171  
172 172  * 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.
173 173  
174 -(% class="box infomessage" %)
175 -(((
176 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
177 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
178 -)))
179 -
180 180  === Battery cover ===
181 181  
182 182  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -185,10 +185,10 @@
185 185  
186 186  In this section:
187 187  
188 -* Enable – a flag to enable the protection;
189 -* Delay before setting the error, millisecond;
190 -* Delay before clearing the error, second;
191 -* 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.
192 192  
193 193  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
194 194  
... ... @@ -202,12 +202,12 @@
202 202  
203 203  (% class="box warningmessage" %)
204 204  (((
205 -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**.**
206 206  )))
207 207  
208 208  === High humidity ===
209 209  
210 -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.
211 211  
212 212  To change the detection parameters, select the "Protections → High humidity" section:
213 213  
... ... @@ -215,12 +215,12 @@
215 215  
216 216  In this section:
217 217  
218 -* Enable – a flag to enable the detection;
219 -* Maximum humidity, RH%;
220 -* Tolerant humidity, RH%;
221 -* Delay before setting the error, second;
222 -* Delay before clearing the error, second;
223 -* 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.
224 224  
225 225  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
226 226  
... ... @@ -239,7 +239,7 @@
239 239  
240 240  === Water ===
241 241  
242 -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.
243 243  
244 244  To change the protection parameters, select the "Protections → Water" section:
245 245  
... ... @@ -247,12 +247,12 @@
247 247  
248 248  In this section:
249 249  
250 -* Enable – a flag to enable the protection;
251 -* Maximum humidity, RH%;
252 -* Tolerant humidity, RH%;
253 -* Delay before setting the error, second;
254 -* Delay before clearing the error, second;
255 -* 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.
256 256  
257 257  As a result of the operation of the battery protection from water, the "Water" error is generated.
258 258  
... ... @@ -264,12 +264,12 @@
264 264  
265 265  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
266 266  
267 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
268 268  (((
269 -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.
270 270  )))
271 271  
272 -=== High Logic temperature ===
315 +=== Logic high temperature ===
273 273  
274 274  To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
275 275  
... ... @@ -277,12 +277,12 @@
277 277  
278 278  In this section:
279 279  
280 -* Enable – a flag to enable the protection;
281 -* Maximum temperature, °C;
282 -* Tolerant temperature, °C;
283 -* Delay before setting the error, second;
284 -* Delay before clearing the error, second;
285 -* 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.
286 286  
287 287  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
288 288  
... ... @@ -303,12 +303,15 @@
303 303  
304 304  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
305 305  
306 -[[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"]]
307 307  
351 +
308 308  In this section:
309 309  
310 -* Enable – a flag to enable the protection;
311 -* 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.
312 312  
313 313  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
314 314  
... ... @@ -322,7 +322,7 @@
322 322  
323 323  (% class="box warningmessage" %)
324 324  (((
325 -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**.**
326 326  )))
327 327  
328 328  === Cell count ===
... ... @@ -333,11 +333,11 @@
333 333  
334 334  In this section:
335 335  
336 -* Enable – a flag to enable the protection;
337 -* Number of cells – a number of cells connected to the BMS;
338 -* Delay before setting the error, millisecond;
339 -* Delay before clearing the error, second;
340 -* 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.
341 341  
342 342  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
343 343  
... ... @@ -351,55 +351,86 @@
351 351  
352 352  (% class="box warningmessage" %)
353 353  (((
354 -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**.**
355 355  )))
356 356  
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 +
357 357  === Logic count ===
358 358  
359 359  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:
360 360  
361 -[[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"]]
362 362  
363 363  In this section:
364 364  
365 -* Enable – a flag to enable the protection;
366 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
367 -* 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);
368 -* 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.
369 369  
370 370  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.
371 371  
372 372  Error generation conditions:
373 373  
374 -* 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.
375 375  
376 376  Conditions for removing the error:
377 377  
378 -* 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.
379 379  
380 380  (% class="box warningmessage" %)
381 381  (((
382 -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.
383 383  )))
384 384  
385 385  === Short circuit ===
386 386  
387 -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.
388 388  
389 389  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
390 390  
391 -[[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"]]
392 392  
393 393  In this section:
394 394  
395 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
396 -** Enable – a flag to enable the protection;
397 -** Maximum current, A;
398 -** Delay before setting the error, second;
399 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "Short circuit" error occurs;
400 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Short circuit" error occurs;
401 -* Delay before clearing the error, second;
402 -* 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.
403 403  
404 404  If there is a short circuit, the "Short circuit" error is generated.
405 405  
... ... @@ -411,30 +411,23 @@
411 411  
412 412  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
413 413  
414 -(% class="box infomessage" %)
415 -(((
416 -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).
417 -)))
418 -
419 419  === High contactor temperature ===
420 420  
421 -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.
422 422  
423 423  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
424 424  
425 -[[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"]]
426 426  
427 427  In this section:
428 428  
429 -* Enable – a flag to enable the protection;
430 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
431 -* Maximum contactor temperature, °C;
432 -* Tolerant contactor temperature, °C;
433 -* Delay before setting the error, second;
434 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "High contactor temperature" error occurs;
435 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "High contactor temperature" error occurs;
436 -* Delay before clearing the error, second;
437 -* 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.
438 438  
439 439  If there is a contactor overheat, the "High contactor temperature" error is generated.
440 440  
... ... @@ -446,14 +446,9 @@
446 446  
447 447  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
448 448  
449 -(% class="box infomessage" %)
450 -(((
451 -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).
452 -)))
453 -
454 454  === Current sensor ===
455 455  
456 -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.
457 457  
458 458  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
459 459  
... ... @@ -461,13 +461,13 @@
461 461  
462 462  In this section:
463 463  
464 -* Enable – a flag to enable the protection;
465 -* Maximum voltage, V;
466 -* Minimum voltage, V;
467 -* Voltage hysteresis – a hysteresis value to clear the error, V;
468 -* Delay before setting the error, second;
469 -* Delay before clearing the error, second;
470 -* 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.
471 471  
472 472  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
473 473  
... ... @@ -482,11 +482,16 @@
482 482  
483 483  (% class="box warningmessage" %)
484 484  (((
485 -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.
486 486  )))
487 487  
488 488  === Power switch ===
489 489  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
490 490  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:
491 491  
492 492  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -493,19 +493,54 @@
493 493  
494 494  In this section:
495 495  
496 -* Delay before clearing the error, second;
497 -* 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.
498 498  
499 499  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.
500 500  
501 501  (% class="box warningmessage" %)
502 502  (((
503 -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.
504 504  )))
505 505  
576 +=== Power fault ===
577 +
578 +(% class="box infomessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
582 +
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 +
506 506  === Charge contactor cycles ===
507 507  
508 -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.
509 509  
510 510  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
511 511  
... ... @@ -513,12 +513,12 @@
513 513  
514 514  In this section:
515 515  
516 -* Enable – a flag to enable the protection;
517 -* Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
518 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
519 -* Delay before setting the error, millisecond;
520 -* Delay before clearing the error, second;
521 -* 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.
522 522  
523 523  If there is a high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
524 524  
... ... @@ -530,14 +530,9 @@
530 530  
531 531  * the “Delay before clearing the error” time has passed since the error was generated.
532 532  
533 -(% class="box infomessage" %)
534 -(((
535 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
536 -)))
537 -
538 538  === Discharge contactor cycles ===
539 539  
540 -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.
541 541  
542 542  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
543 543  
... ... @@ -545,12 +545,12 @@
545 545  
546 546  In this section:
547 547  
548 -* Enable – a flag to enable the protection;
549 -* Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
550 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
551 -* Delay before setting the error, millisecond;
552 -* Delay before clearing the error, second;
553 -* 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.
554 554  
555 555  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
556 556  
... ... @@ -562,14 +562,9 @@
562 562  
563 563  * the “Delay before clearing the error” time has passed since the error was generated.
564 564  
565 -(% class="box infomessage" %)
566 -(((
567 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
568 -)))
569 -
570 570  === Temperature sensors ===
571 571  
572 -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.
573 573  
574 574  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
575 575  
... ... @@ -577,21 +577,21 @@
577 577  
578 578  In this section:
579 579  
580 -* Enable – a flag to enable the protection;
581 -* Delay before setting the error, millisecond;
582 -* Delay before clearing the error, second;
583 -* 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.
584 584  
585 585  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.
586 586  
587 587  (% class="box warningmessage" %)
588 588  (((
589 -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.
590 590  )))
591 591  
592 592  === WDT reset ===
593 593  
594 -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.
595 595  
596 596  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
597 597  
... ... @@ -599,9 +599,9 @@
599 599  
600 600  In this section:
601 601  
602 -* Enable – a flag to enable the protection;
603 -* Delay before clearing the error, second;
604 -* 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.
605 605  
606 606  Conditions for removing the error:
607 607  
... ... @@ -609,12 +609,12 @@
609 609  
610 610  (% class="box warningmessage" %)
611 611  (((
612 -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.
613 613  )))
614 614  
615 615  === Unallowable charging ===
616 616  
617 -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.
618 618  
619 619  To change the parameters of the unallowable charging protection, select the "Protections → Unallowable charging" section:
620 620  
... ... @@ -622,10 +622,10 @@
622 622  
623 623  In this section:
624 624  
625 -* Enable – a flag to enable the protection;
626 -* Delay before setting the error, second;
627 -* Delay before clearing the error, second;
628 -* 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.
629 629  
630 630  If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
631 631  
... ... @@ -637,14 +637,9 @@
637 637  
638 638  * the battery current is zero during the “Delay before clearing the error” time.
639 639  
640 -(% class="box infomessage" %)
641 -(((
642 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
643 -)))
644 -
645 645  === Stuck contactor ===
646 646  
647 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
648 648  
649 649  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
650 650  
... ... @@ -652,12 +652,12 @@
652 652  
653 653  In this section:
654 654  
655 -* Enable – a flag to enable the protection;
656 -* Delay before setting the error, millisecond;
657 -* Delay before clearing the error, second;
658 -* Check voltage – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
659 -* Abnormal voltage difference – the difference of voltages before and after contactors at which BMS indicates and error;
660 -* 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.
661 661  
662 662  If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
663 663  
... ... @@ -665,12 +665,12 @@
665 665  
666 666  (% class="box warningmessage" %)
667 667  (((
668 -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.
669 669  )))
670 670  
671 671  === Contactor feedback ===
672 672  
673 -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.
674 674  
675 675  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
676 676  
... ... @@ -678,10 +678,10 @@
678 678  
679 679  In this section:
680 680  
681 -* Enable – a flag to enable the protection;
682 -* Delay before setting the error, millisecond;
683 -* Delay before clearing the error, second;
684 -* 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.
685 685  
686 686  If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
687 687  
... ... @@ -689,12 +689,12 @@
689 689  
690 690  (% class="box warningmessage" %)
691 691  (((
692 -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.
693 693  )))
694 694  
695 695  === Insulation ===
696 696  
697 -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.
698 698  
699 699  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
700 700  
... ... @@ -702,106 +702,128 @@
702 702  
703 703  In this section:
704 704  
705 -* Enable – a flag to enable the protection;
706 -* Checking algorithm – isolation checking mode:
707 -** Always on – check is always performed;
708 -** On charging – check is performed only if “Charger connected” or “Charge request” is set;
709 -** Except charging - check is performed only if “Charger connected” and “Charge request” are cleared;
710 -* Delay before setting the error, second;
711 -* Delay before clearing the error, second;
712 -* 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.
713 713  
714 714  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.
715 715  
716 716  (% class="box warningmessage" %)
717 717  (((
718 -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.
719 719  )))
720 720  
721 721  === HVIL ===
722 722  
813 +(% class="box infomessage" %)
814 +(((
815 +This section is not available on BMS Main 2R.
816 +)))
817 +
723 723  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.
724 724  
725 725  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
726 726  
727 -[[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"]]
728 728  
729 729  In this section:
730 730  
731 -* Enable – a flag to enable the protection;
732 -* 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.
733 733  
734 -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.
735 735  
835 +Error clears if interlock loop is being restored.
836 +
736 736  (% class="box warningmessage" %)
737 737  (((
738 -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.
739 739  )))
740 740  
741 -=== Critical error ===
842 +=== Battery voltage ===
742 742  
743 -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 +)))
744 744  
745 -[[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.
746 746  
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 +
747 747  In this section:
748 748  
749 -* Enable – a flag to enable the protection;
750 -* Delay before setting the error, millisecond;
751 -* Delay before clearing the error, second;
752 -* 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.
753 753  
754 -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.
755 755  
756 -* “Battery cover error”;
757 -* “Water”;
758 -* “Logic offline”;
759 -* “Cell count error”;
760 -* “ADC error”;
761 -* “Current sensor error”;
762 -* “Shunt offline”;
763 -* “Shunt error”;
764 -* “WDT reset”
765 -* “No temp. sensors”;
766 -* “Temperature sensor shorted”;
767 -* “Stuck contactor”;
768 -* “CH contactor feedback error”;
769 -* “DCH contactor feedback error”;
770 -* “Insulation fault”;
771 -* “PCH contactor feedback error”;
772 -* “CH/DCH contactor feedback error”;
773 -* “Main contactor feedback error”;
774 -* “High voltage fault”;
775 -* “Power switch error”;
776 -* “HVIL error”l
777 -* “Power fault”.
865 +Error generation conditions:
778 778  
779 -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.
780 780  
781 -(% 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" %)
782 782  (((
783 -If there is the “Critical error”, **all **contactors open.
875 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
784 784  )))
785 785  
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 +
786 786  === General error ===
787 787  
788 788  To change the general error parameters, select the "Protections → Critical error" section:
789 789  
790 -[[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"]]
791 791  
792 792  In this section:
793 793  
794 -* Enable – a flag to enable the protection;
795 -* Delay before setting the error, millisecond;
796 -* Delay before clearing the error, second;
797 -* Lock – a flag to block the error until the device is restarted;
798 -* 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.
799 799  
800 -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.
801 801  
802 802  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
803 803  
804 804  (% class="box infomessage" %)
805 805  (((
806 -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.
807 807  )))
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