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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 16.4
edited by Admin
on 2024/12/26 15:01
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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Content
... ... @@ -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  
... ... @@ -37,24 +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 limit, calculated by the Charge map, sa .
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  
49 -[[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
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.
50 50  
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 +
51 51  === Discharge current limit ===
52 52  
53 -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.
54 54  
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 +
55 55  === Undervoltage ===
56 56  
57 -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.
58 58  
59 59  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
60 60  
... ... @@ -62,13 +62,13 @@
62 62  
63 63  In this section:
64 64  
65 -* Enable – a flag to enable the protection;
66 -* Minimum cell voltage, V;
67 -* Tolerant cell voltage, V;
68 -* 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;
69 -* Delay before setting the error, millisecond;
70 -* Delay before clearing the error, second;
71 -* 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.
72 72  
73 73  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
74 74  
... ... @@ -80,14 +80,9 @@
80 80  
81 81  * 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.
82 82  
83 -(% class="box infomessage" %)
84 -(((
85 -If there is the "Undervoltage" error, the **discharging **contactor opens.
86 -)))
87 -
88 88  === Overvoltage ===
89 89  
90 -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.
91 91  
92 92  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
93 93  
... ... @@ -95,13 +95,13 @@
95 95  
96 96  In this section:
97 97  
98 -* Enable – a flag to enable the protection;
99 -* Maximum cell voltage, V;
100 -* Tolerant cell voltage, V;
101 -* 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;
102 -* Delay before setting the error, millisecond;
103 -* Delay before clearing the error, second;
104 -* 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.
105 105  
106 106  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
107 107  
... ... @@ -113,14 +113,34 @@
113 113  
114 114  * 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.
115 115  
116 -(% class="box infomessage" %)
117 -(((
118 -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).
119 -)))
140 +=== Cell imbalance ===
120 120  
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 +
121 121  === Low temperature ===
122 122  
123 -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.
124 124  
125 125  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
126 126  
... ... @@ -128,14 +128,14 @@
128 128  
129 129  In this section:
130 130  
131 -* Enable – a flag to enable the protection;
132 -* Minimum charge temperature, °C;
133 -* Tolerant charge temperature, °C;
134 -* Minimum discharge temperature, °C;
135 -* Tolerant discharge temperature, °C;
136 -* Delay before setting the error, millisecond;
137 -* Delay before clearing the error, second;
138 -* 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.
139 139  
140 140  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.
141 141  
... ... @@ -147,15 +147,9 @@
147 147  
148 148  * 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.
149 149  
150 -(% class="box infomessage" %)
151 -(((
152 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
153 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
154 -)))
155 -
156 156  === High temperature ===
157 157  
158 -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.
159 159  
160 160  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
161 161  
... ... @@ -163,14 +163,14 @@
163 163  
164 164  In this section:
165 165  
166 -* Enable – a flag to enable the protection;
167 -* Maximum charge temperature, °C;
168 -* Tolerant charge temperature, °C;
169 -* Maximum discharge temperature, °C;
170 -* Tolerant discharge temperature, °C;
171 -* Delay before setting the error, millisecond;
172 -* Delay before clearing the error, second;
173 -* 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.
174 174  
175 175  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
176 176  
... ... @@ -182,12 +182,6 @@
182 182  
183 183  * 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.
184 184  
185 -(% class="box infomessage" %)
186 -(((
187 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
188 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
189 -)))
190 -
191 191  === Battery cover ===
192 192  
193 193  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -196,10 +196,10 @@
196 196  
197 197  In this section:
198 198  
199 -* Enable – a flag to enable the protection;
200 -* Delay before setting the error, millisecond;
201 -* Delay before clearing the error, second;
202 -* 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.
203 203  
204 204  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
205 205  
... ... @@ -213,12 +213,12 @@
213 213  
214 214  (% class="box warningmessage" %)
215 215  (((
216 -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**.**
217 217  )))
218 218  
219 219  === High humidity ===
220 220  
221 -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.
222 222  
223 223  To change the detection parameters, select the "Protections → High humidity" section:
224 224  
... ... @@ -226,12 +226,12 @@
226 226  
227 227  In this section:
228 228  
229 -* Enable – a flag to enable the detection;
230 -* Maximum humidity, RH%;
231 -* Tolerant humidity, RH%;
232 -* Delay before setting the error, second;
233 -* Delay before clearing the error, second;
234 -* 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.
235 235  
236 236  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
237 237  
... ... @@ -250,7 +250,7 @@
250 250  
251 251  === Water ===
252 252  
253 -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.
254 254  
255 255  To change the protection parameters, select the "Protections → Water" section:
256 256  
... ... @@ -258,12 +258,12 @@
258 258  
259 259  In this section:
260 260  
261 -* Enable – a flag to enable the protection;
262 -* Maximum humidity, RH%;
263 -* Tolerant humidity, RH%;
264 -* Delay before setting the error, second;
265 -* Delay before clearing the error, second;
266 -* 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.
267 267  
268 268  As a result of the operation of the battery protection from water, the "Water" error is generated.
269 269  
... ... @@ -275,9 +275,9 @@
275 275  
276 276  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
277 277  
278 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
279 279  (((
280 -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.
281 281  )))
282 282  
283 283  === Logic high temperature ===
... ... @@ -288,12 +288,12 @@
288 288  
289 289  In this section:
290 290  
291 -* Enable – a flag to enable the protection;
292 -* Maximum temperature, °C;
293 -* Tolerant temperature, °C;
294 -* Delay before setting the error, second;
295 -* Delay before clearing the error, second;
296 -* 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.
297 297  
298 298  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
299 299  
... ... @@ -314,12 +314,15 @@
314 314  
315 315  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
316 316  
317 -[[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"]]
318 318  
351 +
319 319  In this section:
320 320  
321 -* Enable – a flag to enable the protection;
322 -* 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.
323 323  
324 324  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
325 325  
... ... @@ -333,7 +333,7 @@
333 333  
334 334  (% class="box warningmessage" %)
335 335  (((
336 -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**.**
337 337  )))
338 338  
339 339  === Cell count ===
... ... @@ -344,11 +344,11 @@
344 344  
345 345  In this section:
346 346  
347 -* Enable – a flag to enable the protection;
348 -* Number of cells – a number of cells connected to the BMS;
349 -* Delay before setting the error, millisecond;
350 -* Delay before clearing the error, second;
351 -* 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.
352 352  
353 353  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
354 354  
... ... @@ -362,40 +362,73 @@
362 362  
363 363  (% class="box warningmessage" %)
364 364  (((
365 -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**.**
366 366  )))
367 367  
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 +
368 368  === Logic count ===
369 369  
370 370  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:
371 371  
372 -[[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"]]
373 373  
374 374  In this section:
375 375  
376 -* Enable – a flag to enable the protection;
377 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
378 -* 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);
379 -* 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.
380 380  
381 381  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.
382 382  
383 383  Error generation conditions:
384 384  
385 -* 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.
386 386  
387 387  Conditions for removing the error:
388 388  
389 -* 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.
390 390  
391 391  (% class="box warningmessage" %)
392 392  (((
393 -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.
394 394  )))
395 395  
396 396  === Short circuit ===
397 397  
398 -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.
399 399  
400 400  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
401 401  
... ... @@ -403,12 +403,12 @@
403 403  
404 404  In this section:
405 405  
406 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
407 -** Enable – a flag to enable the protection;
408 -** Maximum current, A;
409 -** Delay before setting the error, second;
410 -* Delay before clearing the error, second;
411 -* 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.
412 412  
413 413  If there is a short circuit, the "Short circuit" error is generated.
414 414  
... ... @@ -420,14 +420,9 @@
420 420  
421 421  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
422 422  
423 -(% class="box infomessage" %)
424 -(((
425 -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).
426 -)))
427 -
428 428  === High contactor temperature ===
429 429  
430 -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.
431 431  
432 432  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
433 433  
... ... @@ -435,13 +435,13 @@
435 435  
436 436  In this section:
437 437  
438 -* Enable – a flag to enable the protection;
439 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
440 -* Maximum contactor temperature, °C;
441 -* Tolerant contactor temperature, °C;
442 -* Delay before setting the error, second;
443 -* Delay before clearing the error, second;
444 -* 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.
445 445  
446 446  If there is a contactor overheat, the "High contactor temperature" error is generated.
447 447  
... ... @@ -453,14 +453,9 @@
453 453  
454 454  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
455 455  
456 -(% class="box infomessage" %)
457 -(((
458 -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).
459 -)))
460 -
461 461  === Current sensor ===
462 462  
463 -The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
521 +The BMS Main 3 / BMS Main 2R device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
464 464  
465 465  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
466 466  
... ... @@ -468,13 +468,13 @@
468 468  
469 469  In this section:
470 470  
471 -* Enable – a flag to enable the protection;
472 -* Maximum voltage, V;
473 -* Minimum voltage, V;
474 -* Voltage hysteresis – a hysteresis value to clear the error, V;
475 -* Delay before setting the error, second;
476 -* Delay before clearing the error, second;
477 -* 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.
478 478  
479 479  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
480 480  
... ... @@ -489,11 +489,16 @@
489 489  
490 490  (% class="box warningmessage" %)
491 491  (((
492 -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.
493 493  )))
494 494  
495 495  === Power switch ===
496 496  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
497 497  BMS Main 3 device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
498 498  
499 499  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -500,23 +500,54 @@
500 500  
501 501  In this section:
502 502  
503 -* Delay before clearing the error, second;
504 -* 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.
505 505  
506 506  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.
507 507  
508 508  (% class="box warningmessage" %)
509 509  (((
510 -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.
511 511  )))
512 512  
513 513  === Power fault ===
514 514  
515 -TBA
578 +(% class="box infomessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
516 516  
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 +
517 517  === Charge contactor cycles ===
518 518  
519 -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.
520 520  
521 521  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
522 522  
... ... @@ -524,12 +524,12 @@
524 524  
525 525  In this section:
526 526  
527 -* Enable – a flag to enable the protection;
528 -* Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
529 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
530 -* Delay before setting the error, millisecond;
531 -* Delay before clearing the error, second;
532 -* 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.
533 533  
534 534  If there is a high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
535 535  
... ... @@ -541,14 +541,9 @@
541 541  
542 542  * the “Delay before clearing the error” time has passed since the error was generated.
543 543  
544 -(% class="box infomessage" %)
545 -(((
546 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
547 -)))
548 -
549 549  === Discharge contactor cycles ===
550 550  
551 -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.
552 552  
553 553  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
554 554  
... ... @@ -556,12 +556,12 @@
556 556  
557 557  In this section:
558 558  
559 -* Enable – a flag to enable the protection;
560 -* Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
561 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
562 -* Delay before setting the error, millisecond;
563 -* Delay before clearing the error, second;
564 -* 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.
565 565  
566 566  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
567 567  
... ... @@ -573,14 +573,9 @@
573 573  
574 574  * the “Delay before clearing the error” time has passed since the error was generated.
575 575  
576 -(% class="box infomessage" %)
577 -(((
578 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
579 -)))
580 -
581 581  === Temperature sensors ===
582 582  
583 -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.
584 584  
585 585  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
586 586  
... ... @@ -588,21 +588,21 @@
588 588  
589 589  In this section:
590 590  
591 -* Enable – a flag to enable the protection;
592 -* Delay before setting the error, millisecond;
593 -* Delay before clearing the error, second;
594 -* 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.
595 595  
596 596  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.
597 597  
598 598  (% class="box warningmessage" %)
599 599  (((
600 -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.
601 601  )))
602 602  
603 603  === WDT reset ===
604 604  
605 -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.
606 606  
607 607  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
608 608  
... ... @@ -610,9 +610,9 @@
610 610  
611 611  In this section:
612 612  
613 -* Enable – a flag to enable the protection;
614 -* Delay before clearing the error, second;
615 -* 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.
616 616  
617 617  Conditions for removing the error:
618 618  
... ... @@ -620,12 +620,12 @@
620 620  
621 621  (% class="box warningmessage" %)
622 622  (((
623 -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.
624 624  )))
625 625  
626 626  === Unallowable charging ===
627 627  
628 -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.
629 629  
630 630  To change the parameters of the unallowable charging protection, select the "Protections → Unallowable charging" section:
631 631  
... ... @@ -633,10 +633,10 @@
633 633  
634 634  In this section:
635 635  
636 -* Enable – a flag to enable the protection;
637 -* Delay before setting the error, second;
638 -* Delay before clearing the error, second;
639 -* 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.
640 640  
641 641  If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
642 642  
... ... @@ -648,14 +648,9 @@
648 648  
649 649  * the battery current is zero during the “Delay before clearing the error” time.
650 650  
651 -(% class="box infomessage" %)
652 -(((
653 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
654 -)))
655 -
656 656  === Stuck contactor ===
657 657  
658 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
659 659  
660 660  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
661 661  
... ... @@ -663,12 +663,12 @@
663 663  
664 664  In this section:
665 665  
666 -* Enable – a flag to enable the protection;
667 -* Delay before setting the error, millisecond;
668 -* Delay before clearing the error, second;
669 -* Check voltage – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
670 -* Abnormal voltage difference – the difference of voltages before and after contactors at which BMS indicates and error;
671 -* 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.
672 672  
673 673  If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
674 674  
... ... @@ -676,12 +676,12 @@
676 676  
677 677  (% class="box warningmessage" %)
678 678  (((
679 -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.
680 680  )))
681 681  
682 682  === Contactor feedback ===
683 683  
684 -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.
685 685  
686 686  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
687 687  
... ... @@ -689,10 +689,10 @@
689 689  
690 690  In this section:
691 691  
692 -* Enable – a flag to enable the protection;
693 -* Delay before setting the error, millisecond;
694 -* Delay before clearing the error, second;
695 -* 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.
696 696  
697 697  If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
698 698  
... ... @@ -700,12 +700,12 @@
700 700  
701 701  (% class="box warningmessage" %)
702 702  (((
703 -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.
704 704  )))
705 705  
706 706  === Insulation ===
707 707  
708 -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.
709 709  
710 710  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
711 711  
... ... @@ -713,24 +713,29 @@
713 713  
714 714  In this section:
715 715  
716 -* Enable – a flag to enable the protection;
717 -* Checking algorithm – isolation checking mode:
718 -** Always on – check is always performed;
719 -** On charging – check is performed only if “Charger connected” or “Charge request” is set;
720 -** Except charging - check is performed only if “Charger connected” and “Charge request” are cleared;
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.
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.
724 724  
725 725  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.
726 726  
727 727  (% class="box warningmessage" %)
728 728  (((
729 -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.
730 730  )))
731 731  
732 732  === HVIL ===
733 733  
813 +(% class="box infomessage" %)
814 +(((
815 +This section is not available on BMS Main 2R.
816 +)))
817 +
734 734  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.
735 735  
736 736  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
... ... @@ -739,65 +739,78 @@
739 739  
740 740  In this section:
741 741  
742 -* Enable – a flag to enable the protection;
743 -* Source is OFF: Lower current limit, A;
744 -* Source is OFF: Upper current limit, A;
745 -* Source is ON: Lower current limit, A;
746 -* Source is ON: Upper current limit, A;
747 -* 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.
748 748  
749 -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.
750 750  
835 +Error clears if interlock loop is being restored.
836 +
751 751  (% class="box warningmessage" %)
752 752  (((
753 -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.
754 754  )))
755 755  
756 -=== Critical error ===
842 +=== Battery voltage ===
757 757  
758 -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 +)))
759 759  
760 -[[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.
761 761  
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 +
762 762  In this section:
763 763  
764 -* Enable – a flag to enable the protection;
765 -* Delay before setting the error, millisecond;
766 -* Delay before clearing the error, second;
767 -* 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.
768 768  
769 -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.
770 770  
771 -* “Battery cover error”;
772 -* “Water”;
773 -* “Logic offline”;
774 -* “Cell count error”;
775 -* “ADC error”;
776 -* “Current sensor error”;
777 -* “Shunt offline”;
778 -* “Shunt error”;
779 -* “WDT reset”
780 -* “No temp. sensors”;
781 -* “Temperature sensor shorted”;
782 -* “Stuck contactor”;
783 -* “CH contactor feedback error”;
784 -* “DCH contactor feedback error”;
785 -* “Insulation fault”;
786 -* “PCH contactor feedback error”;
787 -* “CH/DCH contactor feedback error”;
788 -* “Main contactor feedback error”;
789 -* “High voltage fault”;
790 -* “Power switch error”;
791 -* “HVIL error”l
792 -* “Power fault”.
865 +Error generation conditions:
793 793  
794 -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.
795 795  
796 -(% 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" %)
797 797  (((
798 -If there is the “Critical error”, **all **contactors open.
875 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
799 799  )))
800 800  
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 +
801 801  === General error ===
802 802  
803 803  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -806,17 +806,17 @@
806 806  
807 807  In this section:
808 808  
809 -* Enable – a flag to enable the protection;
810 -* Delay before setting the error, millisecond;
811 -* Delay before clearing the error, second;
812 -* Lock – a flag to block the error until the device is restarted;
813 -* 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.
814 814  
815 -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.
816 816  
817 817  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
818 818  
819 819  (% class="box infomessage" %)
820 820  (((
821 -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.
822 822  )))
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