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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 16.1
edited by Admin
on 2024/12/26 15:00
Change comment: Uploaded new attachment "1735225207687-430.png", version {1}
To version 51.8
edited by Admin
on 2026/04/01 08:35
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  
... ... @@ -37,22 +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 -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  
... ... @@ -60,13 +60,13 @@
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 -* 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;
67 -* Delay before setting the error, millisecond;
68 -* Delay before clearing the error, second;
69 -* 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.
70 70  
71 71  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
72 72  
... ... @@ -78,14 +78,9 @@
78 78  
79 79  * 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.
80 80  
81 -(% class="box infomessage" %)
82 -(((
83 -If there is the "Undervoltage" error, the **discharging **contactor opens.
84 -)))
85 -
86 86  === Overvoltage ===
87 87  
88 -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.
89 89  
90 90  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
91 91  
... ... @@ -93,13 +93,13 @@
93 93  
94 94  In this section:
95 95  
96 -* Enable – a flag to enable the protection;
97 -* Maximum cell voltage, V;
98 -* Tolerant cell voltage, V;
99 -* 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;
100 -* Delay before setting the error, millisecond;
101 -* Delay before clearing the error, second;
102 -* 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.
103 103  
104 104  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
105 105  
... ... @@ -111,14 +111,34 @@
111 111  
112 112  * 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.
113 113  
114 -(% class="box infomessage" %)
115 -(((
116 -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).
117 -)))
140 +=== Cell imbalance ===
118 118  
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 +
119 119  === Low temperature ===
120 120  
121 -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.
122 122  
123 123  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
124 124  
... ... @@ -126,14 +126,14 @@
126 126  
127 127  In this section:
128 128  
129 -* Enable – a flag to enable the protection;
130 -* Minimum charge temperature, °C;
131 -* Tolerant charge temperature, °C;
132 -* Minimum discharge temperature, °C;
133 -* Tolerant discharge temperature, °C;
134 -* Delay before setting the error, millisecond;
135 -* Delay before clearing the error, second;
136 -* 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.
137 137  
138 138  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.
139 139  
... ... @@ -145,15 +145,9 @@
145 145  
146 146  * 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.
147 147  
148 -(% class="box infomessage" %)
149 -(((
150 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
151 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
152 -)))
153 -
154 154  === High temperature ===
155 155  
156 -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.
157 157  
158 158  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
159 159  
... ... @@ -161,14 +161,14 @@
161 161  
162 162  In this section:
163 163  
164 -* Enable – a flag to enable the protection;
165 -* Maximum charge temperature, °C;
166 -* Tolerant charge temperature, °C;
167 -* Maximum discharge temperature, °C;
168 -* Tolerant discharge temperature, °C;
169 -* Delay before setting the error, millisecond;
170 -* Delay before clearing the error, second;
171 -* 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.
172 172  
173 173  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
174 174  
... ... @@ -180,12 +180,6 @@
180 180  
181 181  * 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.
182 182  
183 -(% class="box infomessage" %)
184 -(((
185 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
186 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
187 -)))
188 -
189 189  === Battery cover ===
190 190  
191 191  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -194,10 +194,10 @@
194 194  
195 195  In this section:
196 196  
197 -* Enable – a flag to enable the protection;
198 -* Delay before setting the error, millisecond;
199 -* Delay before clearing the error, second;
200 -* 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.
201 201  
202 202  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
203 203  
... ... @@ -211,12 +211,12 @@
211 211  
212 212  (% class="box warningmessage" %)
213 213  (((
214 -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**.**
215 215  )))
216 216  
217 217  === High humidity ===
218 218  
219 -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.
220 220  
221 221  To change the detection parameters, select the "Protections → High humidity" section:
222 222  
... ... @@ -224,12 +224,12 @@
224 224  
225 225  In this section:
226 226  
227 -* Enable – a flag to enable the detection;
228 -* Maximum humidity, RH%;
229 -* Tolerant humidity, RH%;
230 -* Delay before setting the error, second;
231 -* Delay before clearing the error, second;
232 -* 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.
233 233  
234 234  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
235 235  
... ... @@ -248,7 +248,7 @@
248 248  
249 249  === Water ===
250 250  
251 -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.
252 252  
253 253  To change the protection parameters, select the "Protections → Water" section:
254 254  
... ... @@ -256,12 +256,12 @@
256 256  
257 257  In this section:
258 258  
259 -* Enable – a flag to enable the protection;
260 -* Maximum humidity, RH%;
261 -* Tolerant humidity, RH%;
262 -* Delay before setting the error, second;
263 -* Delay before clearing the error, second;
264 -* 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.
265 265  
266 266  As a result of the operation of the battery protection from water, the "Water" error is generated.
267 267  
... ... @@ -273,9 +273,9 @@
273 273  
274 274  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
275 275  
276 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
277 277  (((
278 -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.
279 279  )))
280 280  
281 281  === Logic high temperature ===
... ... @@ -286,12 +286,12 @@
286 286  
287 287  In this section:
288 288  
289 -* Enable – a flag to enable the protection;
290 -* Maximum temperature, °C;
291 -* Tolerant temperature, °C;
292 -* Delay before setting the error, second;
293 -* Delay before clearing the error, second;
294 -* 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.
295 295  
296 296  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
297 297  
... ... @@ -312,12 +312,15 @@
312 312  
313 313  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
314 314  
315 -[[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"]]
316 316  
351 +
317 317  In this section:
318 318  
319 -* Enable – a flag to enable the protection;
320 -* 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.
321 321  
322 322  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
323 323  
... ... @@ -331,7 +331,7 @@
331 331  
332 332  (% class="box warningmessage" %)
333 333  (((
334 -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**.**
335 335  )))
336 336  
337 337  === Cell count ===
... ... @@ -342,11 +342,11 @@
342 342  
343 343  In this section:
344 344  
345 -* Enable – a flag to enable the protection;
346 -* Number of cells – a number of cells connected to the BMS;
347 -* Delay before setting the error, millisecond;
348 -* Delay before clearing the error, second;
349 -* 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.
350 350  
351 351  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
352 352  
... ... @@ -360,40 +360,73 @@
360 360  
361 361  (% class="box warningmessage" %)
362 362  (((
363 -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**.**
364 364  )))
365 365  
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 +
366 366  === Logic count ===
367 367  
368 368  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:
369 369  
370 -[[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"]]
371 371  
372 372  In this section:
373 373  
374 -* Enable – a flag to enable the protection;
375 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
376 -* 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);
377 -* 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.
378 378  
379 379  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.
380 380  
381 381  Error generation conditions:
382 382  
383 -* 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.
384 384  
385 385  Conditions for removing the error:
386 386  
387 -* 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.
388 388  
389 389  (% class="box warningmessage" %)
390 390  (((
391 -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.
392 392  )))
393 393  
394 394  === Short circuit ===
395 395  
396 -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.
397 397  
398 398  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
399 399  
... ... @@ -401,12 +401,12 @@
401 401  
402 402  In this section:
403 403  
404 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
405 -** Enable – a flag to enable the protection;
406 -** Maximum current, A;
407 -** Delay before setting the error, second;
408 -* Delay before clearing the error, second;
409 -* 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.
410 410  
411 411  If there is a short circuit, the "Short circuit" error is generated.
412 412  
... ... @@ -418,14 +418,9 @@
418 418  
419 419  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
420 420  
421 -(% class="box infomessage" %)
422 -(((
423 -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).
424 -)))
425 -
426 426  === High contactor temperature ===
427 427  
428 -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.
429 429  
430 430  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
431 431  
... ... @@ -433,13 +433,13 @@
433 433  
434 434  In this section:
435 435  
436 -* Enable – a flag to enable the protection;
437 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
438 -* Maximum contactor temperature, °C;
439 -* Tolerant contactor temperature, °C;
440 -* Delay before setting the error, second;
441 -* Delay before clearing the error, second;
442 -* 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.
443 443  
444 444  If there is a contactor overheat, the "High contactor temperature" error is generated.
445 445  
... ... @@ -451,14 +451,9 @@
451 451  
452 452  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
453 453  
454 -(% class="box infomessage" %)
455 -(((
456 -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).
457 -)))
458 -
459 459  === Current sensor ===
460 460  
461 -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.
462 462  
463 463  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
464 464  
... ... @@ -466,13 +466,13 @@
466 466  
467 467  In this section:
468 468  
469 -* Enable – a flag to enable the protection;
470 -* Maximum voltage, V;
471 -* Minimum voltage, V;
472 -* Voltage hysteresis – a hysteresis value to clear the error, V;
473 -* Delay before setting the error, second;
474 -* Delay before clearing the error, second;
475 -* 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.
476 476  
477 477  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
478 478  
... ... @@ -487,11 +487,16 @@
487 487  
488 488  (% class="box warningmessage" %)
489 489  (((
490 -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.
491 491  )))
492 492  
493 493  === Power switch ===
494 494  
555 +(% class="box warningmessage" %)
556 +(((
557 +This section is not available on BMS Main 2R.
558 +)))
559 +
495 495  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:
496 496  
497 497  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -498,7 +498,7 @@
498 498  
499 499  In this section:
500 500  
501 -* Delay before clearing the error, second;
566 +* **Delay before clearing the error**, second;
502 502  * Lock – a flag to block the error until the device is restarted.
503 503  
504 504  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.
... ... @@ -505,16 +505,47 @@
505 505  
506 506  (% class="box warningmessage" %)
507 507  (((
508 -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.
509 509  )))
510 510  
511 511  === Power fault ===
512 512  
513 -TBA
578 +(% class="box warningmessage" %)
579 +(((
580 +This section is not available on BMS Main 2R.
581 +)))
514 514  
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 +
515 515  === Charge contactor cycles ===
516 516  
517 -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.
518 518  
519 519  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
520 520  
... ... @@ -539,14 +539,9 @@
539 539  
540 540  * the “Delay before clearing the error” time has passed since the error was generated.
541 541  
542 -(% class="box infomessage" %)
543 -(((
544 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
545 -)))
546 -
547 547  === Discharge contactor cycles ===
548 548  
549 -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.
550 550  
551 551  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
552 552  
... ... @@ -571,14 +571,9 @@
571 571  
572 572  * the “Delay before clearing the error” time has passed since the error was generated.
573 573  
574 -(% class="box infomessage" %)
575 -(((
576 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
577 -)))
578 -
579 579  === Temperature sensors ===
580 580  
581 -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.
582 582  
583 583  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
584 584  
... ... @@ -595,7 +595,7 @@
595 595  
596 596  (% class="box warningmessage" %)
597 597  (((
598 -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.
599 599  )))
600 600  
601 601  === WDT reset ===
... ... @@ -618,7 +618,7 @@
618 618  
619 619  (% class="box warningmessage" %)
620 620  (((
621 -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.
622 622  )))
623 623  
624 624  === Unallowable charging ===
... ... @@ -646,14 +646,9 @@
646 646  
647 647  * the battery current is zero during the “Delay before clearing the error” time.
648 648  
649 -(% class="box infomessage" %)
650 -(((
651 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
652 -)))
653 -
654 654  === Stuck contactor ===
655 655  
656 -The BMS Main 3 device protects contactors against sticking.
737 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
657 657  
658 658  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
659 659  
... ... @@ -674,12 +674,12 @@
674 674  
675 675  (% class="box warningmessage" %)
676 676  (((
677 -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.
678 678  )))
679 679  
680 680  === Contactor feedback ===
681 681  
682 -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 corresponding contactor feedback pin on the X3 header.
683 683  
684 684  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
685 685  
... ... @@ -698,12 +698,12 @@
698 698  
699 699  (% class="box warningmessage" %)
700 700  (((
701 -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.
702 702  )))
703 703  
704 704  === Insulation ===
705 705  
706 -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.
707 707  
708 708  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
709 709  
... ... @@ -724,12 +724,12 @@
724 724  
725 725  (% class="box warningmessage" %)
726 726  (((
727 -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.
728 728  )))
729 729  
730 730  === HVIL ===
731 731  
732 -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.
813 +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.
733 733  
734 734  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
735 735  
... ... @@ -744,58 +744,66 @@
744 744  * Source is ON: Upper current limit, A;
745 745  * Lock – a flag to block the error until the device is restarted.
746 746  
747 -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.
828 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
748 748  
830 +Error clears if interlock loop is being restored.
831 +
749 749  (% class="box warningmessage" %)
750 750  (((
751 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
834 +If there is the “HVIL error”, the **“Critical error”** is generated.
752 752  )))
753 753  
754 -=== Critical error ===
837 +=== Battery voltage ===
755 755  
756 -To change the critical error parameters, select the "Protections → Critical error" section:
839 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
757 757  
758 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
841 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
759 759  
843 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
844 +
760 760  In this section:
761 761  
762 762  * Enable – a flag to enable the protection;
763 -* Delay before setting the error, millisecond;
848 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
849 +* Delay before setting the error, second;
764 764  * Delay before clearing the error, second;
765 765  * Lock – a flag to block the error until the device is restarted.
766 766  
767 -The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
853 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
768 768  
769 -* “Battery cover error”;
770 -* “Water”;
771 -* “Logic offline”;
772 -* “Cell count error”;
773 -* “ADC error”;
774 -* “Current sensor error”;
775 -* “Shunt offline”;
776 -* “Shunt error”;
777 -* “WDT reset”
778 -* “No temp. sensors”;
779 -* “Temperature sensor shorted”;
780 -* “Stuck contactor”;
781 -* “CH contactor feedback error”;
782 -* “DCH contactor feedback error”;
783 -* “Insulation fault”;
784 -* “PCH contactor feedback error”;
785 -* “CH/DCH contactor feedback error”;
786 -* “Main contactor feedback error”;
787 -* “High voltage fault”;
788 -* “Power switch error”;
789 -* “HVIL error”l
790 -* “Power fault”.
855 +Error generation conditions:
791 791  
792 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
857 +* 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.
793 793  
794 -(% class="box infomessage" %)
859 +Conditions for removing the error:
860 +
861 +* 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.
862 +
863 +(% class="box warningmessage" %)
795 795  (((
796 -If there is the “Critical error”, **all **contactors open.
865 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
797 797  )))
798 798  
868 +=== Critical error ===
869 +
870 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
871 +
872 +To change the critical error parameters, select the "Protections → Critical error" section:
873 +
874 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
875 +
876 +In this section:
877 +
878 +* Enable – a flag to enable the protection;
879 +* Delay before setting the error, millisecond;
880 +* Delay before clearing the error, second;
881 +* Errors 1, 2 to to ignore when setting the critical error;
882 +* Lock – a flag to block the error until the device is restarted.
883 +
884 +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.
885 +
886 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
887 +
799 799  === General error ===
800 800  
801 801  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -810,11 +810,11 @@
810 810  * Lock – a flag to block the error until the device is restarted;
811 811  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
812 812  
813 -The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
902 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
814 814  
815 815  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
816 816  
817 817  (% class="box infomessage" %)
818 818  (((
819 -The state of the “General error” can be output to a discrete output or a power switch.
908 +The state of the “General error” can be assigned to a discrete output or to a power switch.
820 820  )))
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