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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 16.14
edited by Admin
on 2024/12/26 15:04
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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... ... @@ -4,11 +4,17 @@
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  
... ... @@ -16,14 +16,14 @@
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  
... ... @@ -37,31 +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 -The BMS Main 3 device can check the charging current with the limit based on the Charge map. If current is more than estimated maximum, "Current limit" error is generated.
48 +The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
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 +
49 49  To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
50 50  
51 51  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
52 52  
53 -* Enable – a flag to enable the protection;
54 -* Threshold to switch from Region 1 to Region 2
55 -*
56 +* **Enable **– a flag to enable the protection;
57 +* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 +* **Region 1: Current difference** – a value of maximum absolute current difference, A;
59 +* **Region 2: Current difference** – a value of maximum relative current excess, A;
60 +* **Delay before setting the error**, millisecond;
61 +* **Delay before clearing the error**, second;
62 +* **Lock **– a flag to block the error until the device is restarted.
56 56  
57 -
58 58  === Discharge current limit ===
59 59  
60 -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.
61 61  
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 +
62 62  === Undervoltage ===
63 63  
64 -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.
65 65  
66 66  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
67 67  
... ... @@ -69,13 +69,13 @@
69 69  
70 70  In this section:
71 71  
72 -* Enable – a flag to enable the protection;
73 -* Minimum cell voltage, V;
74 -* Tolerant cell voltage, V;
75 -* 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;
76 -* Delay before setting the error, millisecond;
77 -* Delay before clearing the error, second;
78 -* 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.
79 79  
80 80  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
81 81  
... ... @@ -87,14 +87,9 @@
87 87  
88 88  * 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.
89 89  
90 -(% class="box infomessage" %)
91 -(((
92 -If there is the "Undervoltage" error, the **discharging **contactor opens.
93 -)))
94 -
95 95  === Overvoltage ===
96 96  
97 -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.
98 98  
99 99  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
100 100  
... ... @@ -102,13 +102,13 @@
102 102  
103 103  In this section:
104 104  
105 -* Enable – a flag to enable the protection;
106 -* Maximum cell voltage, V;
107 -* Tolerant cell voltage, V;
108 -* 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;
109 -* Delay before setting the error, millisecond;
110 -* Delay before clearing the error, second;
111 -* 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.
112 112  
113 113  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
114 114  
... ... @@ -120,14 +120,34 @@
120 120  
121 121  * 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.
122 122  
123 -(% class="box infomessage" %)
124 -(((
125 -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).
126 -)))
140 +=== Cell imbalance ===
127 127  
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 +
128 128  === Low temperature ===
129 129  
130 -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.
131 131  
132 132  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
133 133  
... ... @@ -135,14 +135,14 @@
135 135  
136 136  In this section:
137 137  
138 -* Enable – a flag to enable the protection;
139 -* Minimum charge temperature, °C;
140 -* Tolerant charge temperature, °C;
141 -* Minimum discharge temperature, °C;
142 -* Tolerant discharge temperature, °C;
143 -* Delay before setting the error, millisecond;
144 -* Delay before clearing the error, second;
145 -* 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.
146 146  
147 147  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.
148 148  
... ... @@ -154,15 +154,9 @@
154 154  
155 155  * 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.
156 156  
157 -(% class="box infomessage" %)
158 -(((
159 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
160 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
161 -)))
162 -
163 163  === High temperature ===
164 164  
165 -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.
166 166  
167 167  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
168 168  
... ... @@ -170,14 +170,14 @@
170 170  
171 171  In this section:
172 172  
173 -* Enable – a flag to enable the protection;
174 -* Maximum charge temperature, °C;
175 -* Tolerant charge temperature, °C;
176 -* Maximum discharge temperature, °C;
177 -* Tolerant discharge temperature, °C;
178 -* Delay before setting the error, millisecond;
179 -* Delay before clearing the error, second;
180 -* 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.
181 181  
182 182  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
183 183  
... ... @@ -189,12 +189,6 @@
189 189  
190 190  * 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.
191 191  
192 -(% class="box infomessage" %)
193 -(((
194 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
195 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
196 -)))
197 -
198 198  === Battery cover ===
199 199  
200 200  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -203,10 +203,10 @@
203 203  
204 204  In this section:
205 205  
206 -* Enable – a flag to enable the protection;
207 -* Delay before setting the error, millisecond;
208 -* Delay before clearing the error, second;
209 -* Lock – a flag to block the error until the device is restarted.
231 +* **Enable** – a flag to enable the protection;
232 +* **Delay before setting the error**, millisecond;
233 +* **Delay before clearing the error**, second;
234 +* **Lock **– a flag to block the error until the device is restarted.
210 210  
211 211  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
212 212  
... ... @@ -220,12 +220,12 @@
220 220  
221 221  (% class="box warningmessage" %)
222 222  (((
223 -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**.**
224 224  )))
225 225  
226 226  === High humidity ===
227 227  
228 -The BMS Main 3 can detect that the battery is operating in high humidity conditions.
253 +The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
229 229  
230 230  To change the detection parameters, select the "Protections → High humidity" section:
231 231  
... ... @@ -233,12 +233,12 @@
233 233  
234 234  In this section:
235 235  
236 -* Enable – a flag to enable the detection;
237 -* Maximum humidity, RH%;
238 -* Tolerant humidity, RH%;
239 -* Delay before setting the error, second;
240 -* Delay before clearing the error, second;
241 -* Lock the error until the device is reset.
261 +* **Enable **– a flag to enable the detection;
262 +* **Maximum humidity**, RH%;
263 +* **Tolerant humidity**, RH%;
264 +* **Delay before setting the error**, second;
265 +* **Delay before clearing the error**, second;
266 +* **Lock **– a flag to block the error until the device is restarted.
242 242  
243 243  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
244 244  
... ... @@ -257,7 +257,7 @@
257 257  
258 258  === Water ===
259 259  
260 -The BMS Main 3 can protect the battery from working in very high humidity conditions.
285 +The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
261 261  
262 262  To change the protection parameters, select the "Protections → Water" section:
263 263  
... ... @@ -265,12 +265,12 @@
265 265  
266 266  In this section:
267 267  
268 -* Enable – a flag to enable the protection;
269 -* Maximum humidity, RH%;
270 -* Tolerant humidity, RH%;
271 -* Delay before setting the error, second;
272 -* Delay before clearing the error, second;
273 -* Lock – lock the error until the device is reset.
293 +* **Enable **– a flag to enable the protection;
294 +* **Maximum humidity**, RH%;
295 +* **Tolerant humidity**, RH%;
296 +* **Delay before setting the error**, second;
297 +* **Delay before clearing the error**, second;
298 +* **Lock **– lock the error until the device is reset.
274 274  
275 275  As a result of the operation of the battery protection from water, the "Water" error is generated.
276 276  
... ... @@ -282,9 +282,9 @@
282 282  
283 283  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
284 284  
285 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
286 286  (((
287 -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.
288 288  )))
289 289  
290 290  === Logic high temperature ===
... ... @@ -295,12 +295,12 @@
295 295  
296 296  In this section:
297 297  
298 -* Enable – a flag to enable the protection;
299 -* Maximum temperature, °C;
300 -* Tolerant temperature, °C;
301 -* Delay before setting the error, second;
302 -* Delay before clearing the error, second;
303 -* Lock – lock the error until the device is reset.
323 +* **Enable **– a flag to enable the protection;
324 +* **Maximum temperature**, °C;
325 +* **Tolerant temperature**, °C;
326 +* **Delay before setting the error**, second;
327 +* **Delay before clearing the error**, second;
328 +* **Lock **– lock the error until the device is reset.
304 304  
305 305  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
306 306  
... ... @@ -321,12 +321,15 @@
321 321  
322 322  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
323 323  
324 -[[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"]]
325 325  
351 +
326 326  In this section:
327 327  
328 -* Enable – a flag to enable the protection;
329 -* 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.
330 330  
331 331  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
332 332  
... ... @@ -340,7 +340,7 @@
340 340  
341 341  (% class="box warningmessage" %)
342 342  (((
343 -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**.**
344 344  )))
345 345  
346 346  === Cell count ===
... ... @@ -351,11 +351,11 @@
351 351  
352 352  In this section:
353 353  
354 -* Enable – a flag to enable the protection;
355 -* Number of cells – a number of cells connected to the BMS;
356 -* Delay before setting the error, millisecond;
357 -* Delay before clearing the error, second;
358 -* 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.
359 359  
360 360  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
361 361  
... ... @@ -369,40 +369,73 @@
369 369  
370 370  (% class="box warningmessage" %)
371 371  (((
372 -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**.**
373 373  )))
374 374  
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 +
375 375  === Logic count ===
376 376  
377 377  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:
378 378  
379 -[[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"]]
380 380  
381 381  In this section:
382 382  
383 -* Enable – a flag to enable the protection;
384 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
385 -* 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);
386 -* 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.
387 387  
388 388  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.
389 389  
390 390  Error generation conditions:
391 391  
392 -* 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.
393 393  
394 394  Conditions for removing the error:
395 395  
396 -* 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.
397 397  
398 398  (% class="box warningmessage" %)
399 399  (((
400 -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.
401 401  )))
402 402  
403 403  === Short circuit ===
404 404  
405 -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.
406 406  
407 407  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
408 408  
... ... @@ -410,12 +410,12 @@
410 410  
411 411  In this section:
412 412  
413 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
414 -** Enable – a flag to enable the protection;
415 -** Maximum current, A;
416 -** Delay before setting the error, second;
417 -* Delay before clearing the error, second;
418 -* 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.
419 419  
420 420  If there is a short circuit, the "Short circuit" error is generated.
421 421  
... ... @@ -427,14 +427,9 @@
427 427  
428 428  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
429 429  
430 -(% class="box infomessage" %)
431 -(((
432 -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).
433 -)))
434 -
435 435  === High contactor temperature ===
436 436  
437 -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.
438 438  
439 439  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
440 440  
... ... @@ -442,13 +442,13 @@
442 442  
443 443  In this section:
444 444  
445 -* Enable – a flag to enable the protection;
446 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
447 -* Maximum contactor temperature, °C;
448 -* Tolerant contactor temperature, °C;
449 -* Delay before setting the error, second;
450 -* Delay before clearing the error, second;
451 -* 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.
452 452  
453 453  If there is a contactor overheat, the "High contactor temperature" error is generated.
454 454  
... ... @@ -460,14 +460,9 @@
460 460  
461 461  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
462 462  
463 -(% class="box infomessage" %)
464 -(((
465 -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).
466 -)))
467 -
468 468  === Current sensor ===
469 469  
470 -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.
471 471  
472 472  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
473 473  
... ... @@ -475,13 +475,13 @@
475 475  
476 476  In this section:
477 477  
478 -* Enable – a flag to enable the protection;
479 -* Maximum voltage, V;
480 -* Minimum voltage, V;
481 -* Voltage hysteresis – a hysteresis value to clear the error, V;
482 -* Delay before setting the error, second;
483 -* Delay before clearing the error, second;
484 -* 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.
485 485  
486 486  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
487 487  
... ... @@ -496,11 +496,16 @@
496 496  
497 497  (% class="box warningmessage" %)
498 498  (((
499 -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.
500 500  )))
501 501  
502 502  === Power switch ===
503 503  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
504 504  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:
505 505  
506 506  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -507,23 +507,54 @@
507 507  
508 508  In this section:
509 509  
510 -* Delay before clearing the error, second;
511 -* 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.
512 512  
513 513  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.
514 514  
515 515  (% class="box warningmessage" %)
516 516  (((
517 -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.
518 518  )))
519 519  
520 520  === Power fault ===
521 521  
522 -TBA
578 +(% class="box infomessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
523 523  
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 +
524 524  === Charge contactor cycles ===
525 525  
526 -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.
527 527  
528 528  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
529 529  
... ... @@ -531,12 +531,12 @@
531 531  
532 532  In this section:
533 533  
534 -* Enable – a flag to enable the protection;
535 -* Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
536 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
537 -* Delay before setting the error, millisecond;
538 -* Delay before clearing the error, second;
539 -* 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.
540 540  
541 541  If there is a high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
542 542  
... ... @@ -548,14 +548,9 @@
548 548  
549 549  * the “Delay before clearing the error” time has passed since the error was generated.
550 550  
551 -(% class="box infomessage" %)
552 -(((
553 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
554 -)))
555 -
556 556  === Discharge contactor cycles ===
557 557  
558 -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.
559 559  
560 560  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
561 561  
... ... @@ -563,12 +563,12 @@
563 563  
564 564  In this section:
565 565  
566 -* Enable – a flag to enable the protection;
567 -* Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
568 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
569 -* Delay before setting the error, millisecond;
570 -* Delay before clearing the error, second;
571 -* 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.
572 572  
573 573  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
574 574  
... ... @@ -580,14 +580,9 @@
580 580  
581 581  * the “Delay before clearing the error” time has passed since the error was generated.
582 582  
583 -(% class="box infomessage" %)
584 -(((
585 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
586 -)))
587 -
588 588  === Temperature sensors ===
589 589  
590 -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.
591 591  
592 592  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
593 593  
... ... @@ -595,21 +595,21 @@
595 595  
596 596  In this section:
597 597  
598 -* Enable – a flag to enable the protection;
599 -* Delay before setting the error, millisecond;
600 -* Delay before clearing the error, second;
601 -* 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.
602 602  
603 603  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.
604 604  
605 605  (% class="box warningmessage" %)
606 606  (((
607 -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.
608 608  )))
609 609  
610 610  === WDT reset ===
611 611  
612 -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.
613 613  
614 614  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
615 615  
... ... @@ -617,9 +617,9 @@
617 617  
618 618  In this section:
619 619  
620 -* Enable – a flag to enable the protection;
621 -* Delay before clearing the error, second;
622 -* 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.
623 623  
624 624  Conditions for removing the error:
625 625  
... ... @@ -627,12 +627,12 @@
627 627  
628 628  (% class="box warningmessage" %)
629 629  (((
630 -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.
631 631  )))
632 632  
633 633  === Unallowable charging ===
634 634  
635 -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.
636 636  
637 637  To change the parameters of the unallowable charging protection, select the "Protections → Unallowable charging" section:
638 638  
... ... @@ -640,10 +640,10 @@
640 640  
641 641  In this section:
642 642  
643 -* Enable – a flag to enable the protection;
644 -* Delay before setting the error, second;
645 -* Delay before clearing the error, second;
646 -* 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.
647 647  
648 648  If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
649 649  
... ... @@ -655,14 +655,9 @@
655 655  
656 656  * the battery current is zero during the “Delay before clearing the error” time.
657 657  
658 -(% class="box infomessage" %)
659 -(((
660 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
661 -)))
662 -
663 663  === Stuck contactor ===
664 664  
665 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
666 666  
667 667  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
668 668  
... ... @@ -670,12 +670,12 @@
670 670  
671 671  In this section:
672 672  
673 -* Enable – a flag to enable the protection;
674 -* Delay before setting the error, millisecond;
675 -* Delay before clearing the error, second;
676 -* Check voltage – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
677 -* Abnormal voltage difference – the difference of voltages before and after contactors at which BMS indicates and error;
678 -* 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.
679 679  
680 680  If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
681 681  
... ... @@ -683,12 +683,12 @@
683 683  
684 684  (% class="box warningmessage" %)
685 685  (((
686 -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.
687 687  )))
688 688  
689 689  === Contactor feedback ===
690 690  
691 -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.
692 692  
693 693  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
694 694  
... ... @@ -696,10 +696,10 @@
696 696  
697 697  In this section:
698 698  
699 -* Enable – a flag to enable the protection;
700 -* Delay before setting the error, millisecond;
701 -* Delay before clearing the error, second;
702 -* 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.
703 703  
704 704  If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
705 705  
... ... @@ -707,12 +707,12 @@
707 707  
708 708  (% class="box warningmessage" %)
709 709  (((
710 -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.
711 711  )))
712 712  
713 713  === Insulation ===
714 714  
715 -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.
716 716  
717 717  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
718 718  
... ... @@ -720,24 +720,29 @@
720 720  
721 721  In this section:
722 722  
723 -* Enable – a flag to enable the protection;
724 -* Checking algorithm – isolation checking mode:
725 -** Always on – check is always performed;
726 -** On charging – check is performed only if “Charger connected” or “Charge request” is set;
727 -** Except charging - check is performed only if “Charger connected” and “Charge request” are cleared;
728 -* Delay before setting the error, second;
729 -* Delay before clearing the error, second;
730 -* 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.
731 731  
732 732  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.
733 733  
734 734  (% class="box warningmessage" %)
735 735  (((
736 -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.
737 737  )))
738 738  
739 739  === HVIL ===
740 740  
813 +(% class="box infomessage" %)
814 +(((
815 +This section is not available on BMS Main 2R.
816 +)))
817 +
741 741  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.
742 742  
743 743  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
... ... @@ -746,65 +746,78 @@
746 746  
747 747  In this section:
748 748  
749 -* Enable – a flag to enable the protection;
750 -* Source is OFF: Lower current limit, A;
751 -* Source is OFF: Upper current limit, A;
752 -* Source is ON: Lower current limit, A;
753 -* Source is ON: Upper current limit, A;
754 -* 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.
755 755  
756 -If interlock loop breaks and its current is out of the configured ranges, 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.
757 757  
835 +Error clears if interlock loop is being restored.
836 +
758 758  (% class="box warningmessage" %)
759 759  (((
760 -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.
761 761  )))
762 762  
763 -=== Critical error ===
842 +=== Battery voltage ===
764 764  
765 -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 +)))
766 766  
767 -[[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.
768 768  
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 +
769 769  In this section:
770 770  
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.
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.
775 775  
776 -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.
777 777  
778 -* “Battery cover error”;
779 -* “Water”;
780 -* “Logic offline”;
781 -* “Cell count error”;
782 -* “ADC error”;
783 -* “Current sensor error”;
784 -* “Shunt offline”;
785 -* “Shunt error”;
786 -* “WDT reset”
787 -* “No temp. sensors”;
788 -* “Temperature sensor shorted”;
789 -* “Stuck contactor”;
790 -* “CH contactor feedback error”;
791 -* “DCH contactor feedback error”;
792 -* “Insulation fault”;
793 -* “PCH contactor feedback error”;
794 -* “CH/DCH contactor feedback error”;
795 -* “Main contactor feedback error”;
796 -* “High voltage fault”;
797 -* “Power switch error”;
798 -* “HVIL error”l
799 -* “Power fault”.
865 +Error generation conditions:
800 800  
801 -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.
802 802  
803 -(% 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" %)
804 804  (((
805 -If there is the “Critical error”, **all **contactors open.
875 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
806 806  )))
807 807  
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 +
808 808  === General error ===
809 809  
810 810  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -813,17 +813,17 @@
813 813  
814 814  In this section:
815 815  
816 -* Enable – a flag to enable the protection;
817 -* Delay before setting the error, millisecond;
818 -* Delay before clearing the error, second;
819 -* Lock – a flag to block the error until the device is restarted;
820 -* Errors 1, 2 to set the "Critical error" – bitfields 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.
821 821  
822 -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.
823 823  
824 824  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
825 825  
826 826  (% class="box infomessage" %)
827 827  (((
828 -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.
829 829  )))
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