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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 6.4
edited by Admin
on 2024/12/26 12:12
Change comment: There is no comment for this version
To version 52.1
edited by Admin
on 2026/04/01 08:42
Change comment: There is no comment for this version

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... ... @@ -4,26 +4,32 @@
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
6 6  
7 -The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
7 +The BMS Main 3 / BMS Main 2R device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 +(% class="box errormessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 -The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
17 +The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
15 -[[image:1733328382376-958.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
21 +[[image:1735224601506-488.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
16 16  
17 17  In this section:
18 18  
19 -* Enable – a flag to enable the protection;
20 -* Maximum charging current, А;
21 -* Tolerant charging current, А;
22 -* Maximum discharging current, А;
23 -* Tolerant discharging current, А;
24 -* Delay before setting the error, millisecond;
25 -* Delay before clearing the error, second;
26 -* Lock – a flag to block the error until the device is restarted.
25 +* **Enable **– a flag to enable the protection;
26 +* **Maximum charging current**, А;
27 +* **Tolerant charging current**, А;
28 +* **Maximum discharging current**, А;
29 +* **Tolerant discharging current**, А;
30 +* **Delay before setting the error**, millisecond;
31 +* **Delay before clearing the error**, second;
32 +* **Lock **– a flag to block the error until the device is restarted.
27 27  
28 28  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
29 29  
... ... @@ -37,35 +37,61 @@
37 37  * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
38 38  * the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
39 39  
40 -(% class="box infomessage" %)
41 -(((
42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 -)))
44 -
45 45  === Charge current limit ===
46 46  
47 -TBA
48 +The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48 48  
50 +Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
51 +
52 +To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 +
54 +[[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
55 +
56 +* **Enable **– a flag to enable the protection;
57 +* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 +* **Region 1: Current difference** – a value of maximum absolute current difference, A;
59 +* **Region 2: Current difference** – a value of maximum relative current excess, A;
60 +* **Delay before setting the error**, millisecond;
61 +* **Delay before clearing the error**, second;
62 +* **Lock **– a flag to block the error until the device is restarted.
63 +
49 49  === Discharge current limit ===
50 50  
51 -TBA
66 +The BMS Main 3 / BMS Main 2R device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
52 52  
68 +Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
69 +
70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
71 +
72 +[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
73 +
74 +In this section:
75 +
76 +* **Enable **– a flag to enable the protection;
77 +* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
78 +* **Region 1: Current difference** – a value of maximum absolute current difference, A;
79 +* **Region 2: Current difference** – a value of maximum relative current excess, A;
80 +* **Delay before setting the error**, millisecond;
81 +* **Delay before clearing the error**, second;
82 +* **Lock **– a flag to block the error until the device is restarted.
83 +
53 53  === Undervoltage ===
54 54  
55 -The BMS Main 3 device implements battery protection from too low voltage on the cells.
86 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
56 56  
57 57  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
58 58  
59 -[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
90 +[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
60 60  
61 61  In this section:
62 62  
63 -* Enable – a flag to enable the protection;
64 -* Minimum cell voltage, V;
65 -* Tolerant cell voltage, V;
66 -* Delay before setting the error, millisecond;
67 -* Delay before clearing the error, second;
68 -* 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.
69 69  
70 70  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
71 71  
... ... @@ -77,28 +77,23 @@
77 77  
78 78  * 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.
79 79  
80 -(% class="box infomessage" %)
81 -(((
82 -If there is the "Undervoltage" error, the **discharging **contactor opens.
83 -)))
84 -
85 85  === Overvoltage ===
86 86  
87 -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.
88 88  
89 89  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
90 90  
91 -[[image:1733328382382-607.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
118 +[[image:1735224377252-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
92 92  
93 93  In this section:
94 94  
95 -* Enable – a flag to enable the protection;
96 -* Maximum cell voltage, V;
97 -* Tolerant cell voltage, V;
98 -* Delay before setting the error, millisecond;
99 -* Delay before clearing the error, second;
100 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
101 -* 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.
102 102  
103 103  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
104 104  
... ... @@ -110,14 +110,34 @@
110 110  
111 111  * 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.
112 112  
113 -(% class="box infomessage" %)
114 -(((
115 -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).
116 -)))
140 +=== Cell imbalance ===
117 117  
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 +
118 118  === Low temperature ===
119 119  
120 -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.
121 121  
122 122  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
123 123  
... ... @@ -125,14 +125,14 @@
125 125  
126 126  In this section:
127 127  
128 -* Enable – a flag to enable the protection;
129 -* Minimum charge temperature, °C;
130 -* Tolerant charge temperature, °C;
131 -* Minimum discharge temperature, °C;
132 -* Tolerant discharge temperature, °C;
133 -* Delay before setting the error, millisecond;
134 -* Delay before clearing the error, second;
135 -* 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.
136 136  
137 137  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.
138 138  
... ... @@ -144,15 +144,9 @@
144 144  
145 145  * 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.
146 146  
147 -(% class="box infomessage" %)
148 -(((
149 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
150 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
151 -)))
152 -
153 153  === High temperature ===
154 154  
155 -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.
156 156  
157 157  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
158 158  
... ... @@ -160,14 +160,14 @@
160 160  
161 161  In this section:
162 162  
163 -* Enable – a flag to enable the protection;
164 -* Maximum charge temperature, °C;
165 -* Tolerant charge temperature, °C;
166 -* Maximum discharge temperature, °C;
167 -* Tolerant discharge temperature, °C;
168 -* Delay before setting the error, millisecond;
169 -* Delay before clearing the error, second;
170 -* 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.
171 171  
172 172  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
173 173  
... ... @@ -179,12 +179,6 @@
179 179  
180 180  * 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.
181 181  
182 -(% class="box infomessage" %)
183 -(((
184 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
185 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
186 -)))
187 -
188 188  === Battery cover ===
189 189  
190 190  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -193,10 +193,10 @@
193 193  
194 194  In this section:
195 195  
196 -* Enable – a flag to enable the protection;
197 -* Delay before setting the error, millisecond;
198 -* Delay before clearing the error, second;
199 -* 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.
200 200  
201 201  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
202 202  
... ... @@ -210,12 +210,12 @@
210 210  
211 211  (% class="box warningmessage" %)
212 212  (((
213 -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**.**
214 214  )))
215 215  
216 216  === High humidity ===
217 217  
218 -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.
219 219  
220 220  To change the detection parameters, select the "Protections → High humidity" section:
221 221  
... ... @@ -223,12 +223,12 @@
223 223  
224 224  In this section:
225 225  
226 -* Enable – a flag to enable the detection;
227 -* Maximum humidity, RH%;
228 -* Tolerant humidity, RH%;
229 -* Delay before setting the error, second;
230 -* Delay before clearing the error, second;
231 -* 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.
232 232  
233 233  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
234 234  
... ... @@ -247,7 +247,7 @@
247 247  
248 248  === Water ===
249 249  
250 -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.
251 251  
252 252  To change the protection parameters, select the "Protections → Water" section:
253 253  
... ... @@ -255,12 +255,12 @@
255 255  
256 256  In this section:
257 257  
258 -* Enable – a flag to enable the protection;
259 -* Maximum humidity, RH%;
260 -* Tolerant humidity, RH%;
261 -* Delay before setting the error, second;
262 -* Delay before clearing the error, second;
263 -* 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.
264 264  
265 265  As a result of the operation of the battery protection from water, the "Water" error is generated.
266 266  
... ... @@ -272,9 +272,9 @@
272 272  
273 273  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
274 274  
275 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
276 276  (((
277 -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.
278 278  )))
279 279  
280 280  === Logic high temperature ===
... ... @@ -285,12 +285,12 @@
285 285  
286 286  In this section:
287 287  
288 -* Enable – a flag to enable the protection;
289 -* Maximum temperature, °C;
290 -* Tolerant temperature, °C;
291 -* Delay before setting the error, second;
292 -* Delay before clearing the error, second;
293 -* 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.
294 294  
295 295  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
296 296  
... ... @@ -311,12 +311,15 @@
311 311  
312 312  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
313 313  
314 -[[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"]]
315 315  
351 +
316 316  In this section:
317 317  
318 -* Enable – a flag to enable the protection;
319 -* 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.
320 320  
321 321  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
322 322  
... ... @@ -330,7 +330,7 @@
330 330  
331 331  (% class="box warningmessage" %)
332 332  (((
333 -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**.**
334 334  )))
335 335  
336 336  === Cell count ===
... ... @@ -341,11 +341,11 @@
341 341  
342 342  In this section:
343 343  
344 -* Enable – a flag to enable the protection;
345 -* Number of cells – a number of cells connected to the BMS;
346 -* Delay before setting the error, millisecond;
347 -* Delay before clearing the error, second;
348 -* 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.
349 349  
350 350  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
351 351  
... ... @@ -359,55 +359,86 @@
359 359  
360 360  (% class="box warningmessage" %)
361 361  (((
362 -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**.**
363 363  )))
364 364  
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 +
365 365  === Logic count ===
366 366  
367 367  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:
368 368  
369 -[[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"]]
370 370  
371 371  In this section:
372 372  
373 -* Enable – a flag to enable the protection;
374 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
375 -* 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);
376 -* 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.
377 377  
378 378  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.
379 379  
380 380  Error generation conditions:
381 381  
382 -* 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.
383 383  
384 384  Conditions for removing the error:
385 385  
386 -* 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.
387 387  
388 388  (% class="box warningmessage" %)
389 389  (((
390 -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.
391 391  )))
392 392  
393 393  === Short circuit ===
394 394  
395 -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.
396 396  
397 397  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
398 398  
399 -[[image:1733328415733-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="210" width="800"]]
470 +[[image:1735224667621-969.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
400 400  
401 401  In this section:
402 402  
403 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
404 -** Enable – a flag to enable the protection;
405 -** Maximum current, A;
406 -** Delay before setting the error, second;
407 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "Short circuit" error occurs;
408 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Short circuit" error occurs;
409 -* Delay before clearing the error, second;
410 -* 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.
411 411  
412 412  If there is a short circuit, the "Short circuit" error is generated.
413 413  
... ... @@ -419,30 +419,23 @@
419 419  
420 420  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
421 421  
422 -(% class="box infomessage" %)
423 -(((
424 -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).
425 -)))
426 -
427 427  === High contactor temperature ===
428 428  
429 -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.
430 430  
431 431  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
432 432  
433 -[[image:1733328415734-986.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
497 +[[image:1735224706573-347.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
434 434  
435 435  In this section:
436 436  
437 -* Enable – a flag to enable the protection;
438 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
439 -* Maximum contactor temperature, °C;
440 -* Tolerant contactor temperature, °C;
441 -* Delay before setting the error, second;
442 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "High contactor temperature" error occurs;
443 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "High contactor temperature" error occurs;
444 -* Delay before clearing the error, second;
445 -* 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.
446 446  
447 447  If there is a contactor overheat, the "High contactor temperature" error is generated.
448 448  
... ... @@ -454,14 +454,9 @@
454 454  
455 455  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
456 456  
457 -(% class="box infomessage" %)
458 -(((
459 -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).
460 -)))
461 -
462 462  === Current sensor ===
463 463  
464 -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.
465 465  
466 466  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
467 467  
... ... @@ -469,13 +469,13 @@
469 469  
470 470  In this section:
471 471  
472 -* Enable – a flag to enable the protection;
473 -* Maximum voltage, V;
474 -* Minimum voltage, V;
475 -* Voltage hysteresis – a hysteresis value to clear the error, V;
476 -* Delay before setting the error, second;
477 -* Delay before clearing the error, second;
478 -* 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.
479 479  
480 480  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
481 481  
... ... @@ -490,11 +490,16 @@
490 490  
491 491  (% class="box warningmessage" %)
492 492  (((
493 -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.
494 494  )))
495 495  
496 496  === Power switch ===
497 497  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
498 498  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:
499 499  
500 500  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -501,23 +501,54 @@
501 501  
502 502  In this section:
503 503  
504 -* Delay before clearing the error, second;
505 -* 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.
506 506  
507 507  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.
508 508  
509 509  (% class="box warningmessage" %)
510 510  (((
511 -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.
512 512  )))
513 513  
514 514  === Power fault ===
515 515  
516 -TBA
578 +(% class="box infomessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
517 517  
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 +
518 518  === Charge contactor cycles ===
519 519  
520 -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.
521 521  
522 522  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
523 523  
... ... @@ -525,12 +525,12 @@
525 525  
526 526  In this section:
527 527  
528 -* Enable – a flag to enable the protection;
529 -* Cycles threshold – a number of cycles in a given period, upon which the “CH contactor cycles error” is generated;
530 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
531 -* Delay before setting the error, millisecond;
532 -* Delay before clearing the error, second;
533 -* 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.
534 534  
535 535  If there is a high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
536 536  
... ... @@ -542,14 +542,9 @@
542 542  
543 543  * the “Delay before clearing the error” time has passed since the error was generated.
544 544  
545 -(% class="box infomessage" %)
546 -(((
547 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
548 -)))
549 -
550 550  === Discharge contactor cycles ===
551 551  
552 -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.
553 553  
554 554  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
555 555  
... ... @@ -557,12 +557,12 @@
557 557  
558 558  In this section:
559 559  
560 -* Enable – a flag to enable the protection;
561 -* Cycles threshold – a number of cycles in a given period, upon which the “DCH contactor cycles error” is generated;
562 -* Check time – a time in which the BMS counts switching cycles of the charging contactor, second;
563 -* Delay before setting the error, millisecond;
564 -* Delay before clearing the error, second;
565 -* 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.
566 566  
567 567  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
568 568  
... ... @@ -574,14 +574,9 @@
574 574  
575 575  * the “Delay before clearing the error” time has passed since the error was generated.
576 576  
577 -(% class="box infomessage" %)
578 -(((
579 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
580 -)))
581 -
582 582  === Temperature sensors ===
583 583  
584 -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.
585 585  
586 586  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
587 587  
... ... @@ -589,21 +589,21 @@
589 589  
590 590  In this section:
591 591  
592 -* Enable – a flag to enable the protection;
593 -* Delay before setting the error, millisecond;
594 -* Delay before clearing the error, second;
595 -* 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.
596 596  
597 597  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.
598 598  
599 599  (% class="box warningmessage" %)
600 600  (((
601 -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.
602 602  )))
603 603  
604 604  === WDT reset ===
605 605  
606 -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.
607 607  
608 608  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
609 609  
... ... @@ -611,9 +611,9 @@
611 611  
612 612  In this section:
613 613  
614 -* Enable – a flag to enable the protection;
615 -* Delay before clearing the error, second;
616 -* 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.
617 617  
618 618  Conditions for removing the error:
619 619  
... ... @@ -621,12 +621,12 @@
621 621  
622 622  (% class="box warningmessage" %)
623 623  (((
624 -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.
625 625  )))
626 626  
627 627  === Unallowable charging ===
628 628  
629 -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.
630 630  
631 631  To change the parameters of the unallowable charging protection, select the "Protections → Unallowable charging" section:
632 632  
... ... @@ -634,10 +634,10 @@
634 634  
635 635  In this section:
636 636  
637 -* Enable – a flag to enable the protection;
638 -* Delay before setting the error, second;
639 -* Delay before clearing the error, second;
640 -* 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.
641 641  
642 642  If there is charging the battery through the discharging circuit detected, the "Unallowable charging" error is generated.
643 643  
... ... @@ -649,14 +649,9 @@
649 649  
650 650  * the battery current is zero during the “Delay before clearing the error” time.
651 651  
652 -(% class="box infomessage" %)
653 -(((
654 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
655 -)))
656 -
657 657  === Stuck contactor ===
658 658  
659 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
660 660  
661 661  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
662 662  
... ... @@ -664,12 +664,12 @@
664 664  
665 665  In this section:
666 666  
667 -* Enable – a flag to enable the protection;
668 -* Delay before setting the error, millisecond;
669 -* Delay before clearing the error, second;
670 -* Check voltage – a flag to enable checking of voltage before and after contactors to detect the fact of contactor sticking;
671 -* Abnormal voltage difference – the difference of voltages before and after contactors at which BMS indicates and error;
672 -* 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.
673 673  
674 674  If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
675 675  
... ... @@ -677,12 +677,12 @@
677 677  
678 678  (% class="box warningmessage" %)
679 679  (((
680 -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.
681 681  )))
682 682  
683 683  === Contactor feedback ===
684 684  
685 -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.
686 686  
687 687  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
688 688  
... ... @@ -690,10 +690,10 @@
690 690  
691 691  In this section:
692 692  
693 -* Enable – a flag to enable the protection;
694 -* Delay before setting the error, millisecond;
695 -* Delay before clearing the error, second;
696 -* 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.
697 697  
698 698  If there is a discrepancy at any contactor, the corresponding contactor feedback error is generated. Error generation conditions:
699 699  
... ... @@ -701,12 +701,12 @@
701 701  
702 702  (% class="box warningmessage" %)
703 703  (((
704 -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.
705 705  )))
706 706  
707 707  === Insulation ===
708 708  
709 -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.
710 710  
711 711  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
712 712  
... ... @@ -714,106 +714,128 @@
714 714  
715 715  In this section:
716 716  
717 -* Enable – a flag to enable the protection;
718 -* Checking algorithm – isolation checking mode:
719 -** Always on – check is always performed;
720 -** On charging – check is performed only if “Charger connected” or “Charge request” is set;
721 -** Except charging - check is performed only if “Charger connected” and “Charge request” are cleared;
722 -* Delay before setting the error, second;
723 -* Delay before clearing the error, second;
724 -* 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.
725 725  
726 726  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.
727 727  
728 728  (% class="box warningmessage" %)
729 729  (((
730 -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.
731 731  )))
732 732  
733 733  === HVIL ===
734 734  
813 +(% class="box infomessage" %)
814 +(((
815 +This section is not available on BMS Main 2R.
816 +)))
817 +
735 735  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.
736 736  
737 737  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
738 738  
739 -[[image:1733328487099-371.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]
822 +[[image:1735224839441-185.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
740 740  
741 741  In this section:
742 742  
743 -* Enable – a flag to enable the protection;
744 -* 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.
745 745  
746 -If interlock loop breaks, the “HVIL error” is generated. Error clears if interlock loop is being restored.
833 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
747 747  
835 +Error clears if interlock loop is being restored.
836 +
748 748  (% class="box warningmessage" %)
749 749  (((
750 -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.
751 751  )))
752 752  
753 -=== Critical error ===
842 +=== Battery voltage ===
754 754  
755 -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 +)))
756 756  
757 -[[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.
758 758  
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 +
759 759  In this section:
760 760  
761 -* Enable – a flag to enable the protection;
762 -* Delay before setting the error, millisecond;
763 -* Delay before clearing the error, second;
764 -* 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.
765 765  
766 -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.
767 767  
768 -* “Battery cover error”;
769 -* “Water”;
770 -* “Logic offline”;
771 -* “Cell count error”;
772 -* “ADC error”;
773 -* “Current sensor error”;
774 -* “Shunt offline”;
775 -* “Shunt error”;
776 -* “WDT reset”
777 -* “No temp. sensors”;
778 -* “Temperature sensor shorted”;
779 -* “Stuck contactor”;
780 -* “CH contactor feedback error”;
781 -* “DCH contactor feedback error”;
782 -* “Insulation fault”;
783 -* “PCH contactor feedback error”;
784 -* “CH/DCH contactor feedback error”;
785 -* “Main contactor feedback error”;
786 -* “High voltage fault”;
787 -* “Power switch error”;
788 -* “HVIL error”l
789 -* “Power fault”.
865 +Error generation conditions:
790 790  
791 -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.
792 792  
793 -(% 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" %)
794 794  (((
795 -If there is the “Critical error”, **all **contactors open.
875 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
796 796  )))
797 797  
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 +
798 798  === General error ===
799 799  
800 800  To change the general error parameters, select the "Protections → Critical error" section:
801 801  
802 -[[image:1733328487101-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
902 +[[image:1735224942262-497.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
803 803  
804 804  In this section:
805 805  
806 -* Enable – a flag to enable the protection;
807 -* Delay before setting the error, millisecond;
808 -* Delay before clearing the error, second;
809 -* Lock – a flag to block the error until the device is restarted;
810 -* Check: <error> – a flags to enable check of corresponding errors.
906 +* **Enable **– a flag to enable the protection;
907 +* **Delay before setting the error**, millisecond;
908 +* **Delay before clearing the error**, second;
909 +* **Lock **– a flag to block the error until the device is restarted;
910 +* **Errors 1, 2 to set the "Critical error"** – bitfields to enable check of corresponding errors.
811 811  
812 -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.
813 813  
814 814  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
815 815  
816 816  (% class="box infomessage" %)
817 817  (((
818 -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.
819 819  )))
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