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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 16.15
edited by Admin
on 2024/12/26 15:05
Change comment: There is no comment for this version
To version 51.6
edited by Admin
on 2026/04/01 08:33
Change comment: There is no comment for this version

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... ... @@ -4,11 +4,17 @@
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
6 6  
7 -The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
7 +The BMS Main 3 / BMS Main 2R device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 +(% class="box errormessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 -The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
17 +The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
... ... @@ -16,14 +16,14 @@
16 16  
17 17  In this section:
18 18  
19 -* Enable – a flag to enable the protection;
20 -* Maximum charging current, А;
21 -* Tolerant charging current, А;
22 -* Maximum discharging current, А;
23 -* Tolerant discharging current, А;
24 -* Delay before setting the error, millisecond;
25 -* Delay before clearing the error, second;
26 -* Lock – a flag to block the error until the device is restarted.
25 +* **Enable **– a flag to enable the protection;
26 +* **Maximum charging current**, А;
27 +* **Tolerant charging current**, А;
28 +* **Maximum discharging current**, А;
29 +* **Tolerant discharging current**, А;
30 +* **Delay before setting the error**, millisecond;
31 +* **Delay before clearing the error**, second;
32 +* **Lock **– a flag to block the error until the device is restarted.
27 27  
28 28  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
29 29  
... ... @@ -37,32 +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 if the charging current exceeds the limit based on the Charge map. If current is more than estimated maximum, "Current limit" error is generated.
48 +The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48 48  
50 +Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
49 49  
50 50  To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
51 51  
52 52  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
53 53  
54 -* Enable – a flag to enable the protection;
55 -* Threshold to switch from Region 1 to Region 2
56 -*
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.
57 57  
58 -
59 59  === Discharge current limit ===
60 60  
61 -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.
62 62  
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 +
63 63  === Undervoltage ===
64 64  
65 -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.
66 66  
67 67  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
68 68  
... ... @@ -70,13 +70,13 @@
70 70  
71 71  In this section:
72 72  
73 -* Enable – a flag to enable the protection;
74 -* Minimum cell voltage, V;
75 -* Tolerant cell voltage, V;
76 -* 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;
77 -* Delay before setting the error, millisecond;
78 -* Delay before clearing the error, second;
79 -* 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.
80 80  
81 81  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
82 82  
... ... @@ -88,14 +88,9 @@
88 88  
89 89  * 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.
90 90  
91 -(% class="box infomessage" %)
92 -(((
93 -If there is the "Undervoltage" error, the **discharging **contactor opens.
94 -)))
95 -
96 96  === Overvoltage ===
97 97  
98 -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.
99 99  
100 100  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
101 101  
... ... @@ -103,13 +103,13 @@
103 103  
104 104  In this section:
105 105  
106 -* Enable – a flag to enable the protection;
107 -* Maximum cell voltage, V;
108 -* Tolerant cell voltage, V;
109 -* 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;
110 -* Delay before setting the error, millisecond;
111 -* Delay before clearing the error, second;
112 -* 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.
113 113  
114 114  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
115 115  
... ... @@ -121,14 +121,34 @@
121 121  
122 122  * 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.
123 123  
124 -(% class="box infomessage" %)
125 -(((
126 -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).
127 -)))
140 +=== Cell imbalance ===
128 128  
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 +
129 129  === Low temperature ===
130 130  
131 -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.
132 132  
133 133  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
134 134  
... ... @@ -136,14 +136,14 @@
136 136  
137 137  In this section:
138 138  
139 -* Enable – a flag to enable the protection;
140 -* Minimum charge temperature, °C;
141 -* Tolerant charge temperature, °C;
142 -* Minimum discharge temperature, °C;
143 -* Tolerant discharge temperature, °C;
144 -* Delay before setting the error, millisecond;
145 -* Delay before clearing the error, second;
146 -* 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.
147 147  
148 148  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.
149 149  
... ... @@ -155,15 +155,9 @@
155 155  
156 156  * 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.
157 157  
158 -(% class="box infomessage" %)
159 -(((
160 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
161 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
162 -)))
163 -
164 164  === High temperature ===
165 165  
166 -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.
167 167  
168 168  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
169 169  
... ... @@ -171,14 +171,14 @@
171 171  
172 172  In this section:
173 173  
174 -* Enable – a flag to enable the protection;
175 -* Maximum charge temperature, °C;
176 -* Tolerant charge temperature, °C;
177 -* Maximum discharge temperature, °C;
178 -* Tolerant discharge temperature, °C;
179 -* Delay before setting the error, millisecond;
180 -* Delay before clearing the error, second;
181 -* 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.
182 182  
183 183  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
184 184  
... ... @@ -190,12 +190,6 @@
190 190  
191 191  * 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.
192 192  
193 -(% class="box infomessage" %)
194 -(((
195 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
196 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
197 -)))
198 -
199 199  === Battery cover ===
200 200  
201 201  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -204,10 +204,10 @@
204 204  
205 205  In this section:
206 206  
207 -* Enable – a flag to enable the protection;
208 -* Delay before setting the error, millisecond;
209 -* Delay before clearing the error, second;
210 -* 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.
211 211  
212 212  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
213 213  
... ... @@ -221,12 +221,12 @@
221 221  
222 222  (% class="box warningmessage" %)
223 223  (((
224 -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**.**
225 225  )))
226 226  
227 227  === High humidity ===
228 228  
229 -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.
230 230  
231 231  To change the detection parameters, select the "Protections → High humidity" section:
232 232  
... ... @@ -234,12 +234,12 @@
234 234  
235 235  In this section:
236 236  
237 -* Enable – a flag to enable the detection;
238 -* Maximum humidity, RH%;
239 -* Tolerant humidity, RH%;
240 -* Delay before setting the error, second;
241 -* Delay before clearing the error, second;
242 -* 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.
243 243  
244 244  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
245 245  
... ... @@ -258,7 +258,7 @@
258 258  
259 259  === Water ===
260 260  
261 -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.
262 262  
263 263  To change the protection parameters, select the "Protections → Water" section:
264 264  
... ... @@ -266,12 +266,12 @@
266 266  
267 267  In this section:
268 268  
269 -* Enable – a flag to enable the protection;
270 -* Maximum humidity, RH%;
271 -* Tolerant humidity, RH%;
272 -* Delay before setting the error, second;
273 -* Delay before clearing the error, second;
274 -* 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.
275 275  
276 276  As a result of the operation of the battery protection from water, the "Water" error is generated.
277 277  
... ... @@ -283,9 +283,9 @@
283 283  
284 284  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
285 285  
286 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
287 287  (((
288 -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.
289 289  )))
290 290  
291 291  === Logic high temperature ===
... ... @@ -296,12 +296,12 @@
296 296  
297 297  In this section:
298 298  
299 -* Enable – a flag to enable the protection;
300 -* Maximum temperature, °C;
301 -* Tolerant temperature, °C;
302 -* Delay before setting the error, second;
303 -* Delay before clearing the error, second;
304 -* 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.
305 305  
306 306  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
307 307  
... ... @@ -322,12 +322,15 @@
322 322  
323 323  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
324 324  
325 -[[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"]]
326 326  
351 +
327 327  In this section:
328 328  
329 -* Enable – a flag to enable the protection;
330 -* 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.
331 331  
332 332  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
333 333  
... ... @@ -341,7 +341,7 @@
341 341  
342 342  (% class="box warningmessage" %)
343 343  (((
344 -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**.**
345 345  )))
346 346  
347 347  === Cell count ===
... ... @@ -352,11 +352,11 @@
352 352  
353 353  In this section:
354 354  
355 -* Enable – a flag to enable the protection;
356 -* Number of cells – a number of cells connected to the BMS;
357 -* Delay before setting the error, millisecond;
358 -* Delay before clearing the error, second;
359 -* 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.
360 360  
361 361  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
362 362  
... ... @@ -370,14 +370,43 @@
370 370  
371 371  (% class="box warningmessage" %)
372 372  (((
373 -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**.**
374 374  )))
375 375  
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 +
376 376  === Logic count ===
377 377  
378 378  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:
379 379  
380 -[[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"]]
381 381  
382 382  In this section:
383 383  
... ... @@ -384,6 +384,8 @@
384 384  * Enable – a flag to enable the protection;
385 385  * Logic count – a number of BMS Logic devices connected to the BMS Main;
386 386  * 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;
387 387  * Lock – lock the error until the device is reset.
388 388  
389 389  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.
... ... @@ -390,20 +390,22 @@
390 390  
391 391  Error generation conditions:
392 392  
393 -* 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.
394 394  
395 395  Conditions for removing the error:
396 396  
397 -* 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.
398 398  
399 399  (% class="box warningmessage" %)
400 400  (((
401 -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.
402 402  )))
403 403  
404 404  === Short circuit ===
405 405  
406 -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.
407 407  
408 408  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
409 409  
... ... @@ -428,14 +428,9 @@
428 428  
429 429  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
430 430  
431 -(% class="box infomessage" %)
432 -(((
433 -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).
434 -)))
435 -
436 436  === High contactor temperature ===
437 437  
438 -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.
439 439  
440 440  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
441 441  
... ... @@ -461,14 +461,9 @@
461 461  
462 462  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
463 463  
464 -(% class="box infomessage" %)
465 -(((
466 -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).
467 -)))
468 -
469 469  === Current sensor ===
470 470  
471 -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.
472 472  
473 473  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
474 474  
... ... @@ -497,12 +497,12 @@
497 497  
498 498  (% class="box warningmessage" %)
499 499  (((
500 -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.
501 501  )))
502 502  
503 503  === Power switch ===
504 504  
505 -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:
555 +BMS Main 3 / BMS Main 2R 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:
506 506  
507 507  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
508 508  
... ... @@ -515,16 +515,42 @@
515 515  
516 516  (% class="box warningmessage" %)
517 517  (((
518 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
568 +If there is the "Power switch error", the **“Critical error” **is generated.
519 519  )))
520 520  
521 521  === Power fault ===
522 522  
523 -TBA
573 +BMS Main 3 / BMS Main 2R device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
524 524  
575 +(% class="box infomessage" %)
576 +(((
577 +**Note:** this error can be configured only under** "Service" account**.
578 +)))
579 +
580 +To change the parameters of the power fault error, select the "Protections → Power fault" section:
581 +
582 +[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
583 +
584 +In this section:
585 +
586 +* Enable – a flag to enable the protection;
587 +* Delay before setting the error, millisecond;
588 +* Time to keep power off, millisecond;
589 +* Delay before clearing the error, millisecond;
590 +* Lock – a flag to block the error until the device is restarted.
591 +
592 +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.
593 +
594 +Error is removed when the power consumption is normal during “Delay before clearing the error” time.
595 +
596 +(% class="box warningmessage" %)
597 +(((
598 +If there is the "Power fault", the **“Critical error” **is generated.
599 +)))
600 +
525 525  === Charge contactor cycles ===
526 526  
527 -The BMS Main 3 device protects the charging contactor against frequent switching.
603 +The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
528 528  
529 529  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
530 530  
... ... @@ -549,14 +549,9 @@
549 549  
550 550  * the “Delay before clearing the error” time has passed since the error was generated.
551 551  
552 -(% class="box infomessage" %)
553 -(((
554 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
555 -)))
556 -
557 557  === Discharge contactor cycles ===
558 558  
559 -The BMS Main 3 device protects the discharging contactor against frequent switching.
630 +The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
560 560  
561 561  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
562 562  
... ... @@ -581,14 +581,9 @@
581 581  
582 582  * the “Delay before clearing the error” time has passed since the error was generated.
583 583  
584 -(% class="box infomessage" %)
585 -(((
586 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
587 -)))
588 -
589 589  === Temperature sensors ===
590 590  
591 -The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
657 +The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
592 592  
593 593  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
594 594  
... ... @@ -605,7 +605,7 @@
605 605  
606 606  (% class="box warningmessage" %)
607 607  (((
608 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
674 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
609 609  )))
610 610  
611 611  === WDT reset ===
... ... @@ -628,7 +628,7 @@
628 628  
629 629  (% class="box warningmessage" %)
630 630  (((
631 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
697 +If there is the "WDT reset" error, the **“Critical error” **is generated.
632 632  )))
633 633  
634 634  === Unallowable charging ===
... ... @@ -656,14 +656,9 @@
656 656  
657 657  * the battery current is zero during the “Delay before clearing the error” time.
658 658  
659 -(% class="box infomessage" %)
660 -(((
661 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
662 -)))
663 -
664 664  === Stuck contactor ===
665 665  
666 -The BMS Main 3 device protects contactors against sticking.
727 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
667 667  
668 668  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
669 669  
... ... @@ -684,12 +684,12 @@
684 684  
685 685  (% class="box warningmessage" %)
686 686  (((
687 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
748 +If there is the “Stuck contactor” error, the **“Critical error” **is generated.
688 688  )))
689 689  
690 690  === Contactor feedback ===
691 691  
692 -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.
753 +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 corresponding contactor feedback pin on the X3 header.
693 693  
694 694  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
695 695  
... ... @@ -708,12 +708,12 @@
708 708  
709 709  (% class="box warningmessage" %)
710 710  (((
711 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
772 +If there is the “Contactor feedback” error, the **“Critical error” **is generated.
712 712  )))
713 713  
714 714  === Insulation ===
715 715  
716 -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.
777 +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.
717 717  
718 718  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
719 719  
... ... @@ -734,12 +734,12 @@
734 734  
735 735  (% class="box warningmessage" %)
736 736  (((
737 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
798 +If there is the “Insulation fault”, the **“Critical error”** is generated.
738 738  )))
739 739  
740 740  === HVIL ===
741 741  
742 -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.
803 +The BMS Main 3 / BMS Main 2R 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.
743 743  
744 744  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
745 745  
... ... @@ -754,58 +754,66 @@
754 754  * Source is ON: Upper current limit, A;
755 755  * Lock – a flag to block the error until the device is restarted.
756 756  
757 -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.
818 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
758 758  
820 +Error clears if interlock loop is being restored.
821 +
759 759  (% class="box warningmessage" %)
760 760  (((
761 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
824 +If there is the “HVIL error”, the **“Critical error”** is generated.
762 762  )))
763 763  
764 -=== Critical error ===
827 +=== Battery voltage ===
765 765  
766 -To change the critical error parameters, select the "Protections → Critical error" section:
829 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
767 767  
768 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
831 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
769 769  
833 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
834 +
770 770  In this section:
771 771  
772 772  * Enable – a flag to enable the protection;
773 -* Delay before setting the error, millisecond;
838 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
839 +* Delay before setting the error, second;
774 774  * Delay before clearing the error, second;
775 775  * Lock – a flag to block the error until the device is restarted.
776 776  
777 -The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
843 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
778 778  
779 -* “Battery cover error”;
780 -* “Water”;
781 -* “Logic offline”;
782 -* “Cell count error”;
783 -* “ADC error”;
784 -* “Current sensor error”;
785 -* “Shunt offline”;
786 -* “Shunt error”;
787 -* “WDT reset”
788 -* “No temp. sensors”;
789 -* “Temperature sensor shorted”;
790 -* “Stuck contactor”;
791 -* “CH contactor feedback error”;
792 -* “DCH contactor feedback error”;
793 -* “Insulation fault”;
794 -* “PCH contactor feedback error”;
795 -* “CH/DCH contactor feedback error”;
796 -* “Main contactor feedback error”;
797 -* “High voltage fault”;
798 -* “Power switch error”;
799 -* “HVIL error”l
800 -* “Power fault”.
845 +Error generation conditions:
801 801  
802 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
847 +* 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.
803 803  
804 -(% class="box infomessage" %)
849 +Conditions for removing the error:
850 +
851 +* 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.
852 +
853 +(% class="box warningmessage" %)
805 805  (((
806 -If there is the “Critical error”, **all **contactors open.
855 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
807 807  )))
808 808  
858 +=== Critical error ===
859 +
860 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
861 +
862 +To change the critical error parameters, select the "Protections → Critical error" section:
863 +
864 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
865 +
866 +In this section:
867 +
868 +* Enable – a flag to enable the protection;
869 +* Delay before setting the error, millisecond;
870 +* Delay before clearing the error, second;
871 +* Errors 1, 2 to to ignore when setting the critical error;
872 +* Lock – a flag to block the error until the device is restarted.
873 +
874 +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.
875 +
876 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
877 +
809 809  === General error ===
810 810  
811 811  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -820,11 +820,11 @@
820 820  * Lock – a flag to block the error until the device is restarted;
821 821  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
822 822  
823 -The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
892 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
824 824  
825 825  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
826 826  
827 827  (% class="box infomessage" %)
828 828  (((
829 -The state of the “General error” can be output to a discrete output or a power switch.
898 +The state of the “General error” can be assigned to a discrete output or to a power switch.
830 830  )))
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