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Changes for page 3.6 Battery protection

Last modified by Admin on 2025/04/09 12:25
From version 4.11
edited by Admin
on 2024/11/21 18:15
Change comment: There is no comment for this version
To version 4.15
edited by Admin
on 2024/11/21 18:19
Change comment: There is no comment for this version

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Content
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6 6  
7 7  [[Overcurrent protection settings>>image:1732211959984-118.png||data-xwiki-image-style-alignment="center" height="266" width="386"]]
8 8  
9 + In this section:
9 9  
10 -In this section:
11 -
12 12  * Enable – a flag to enable the protection;
13 13  * Maximum charging current, А;
14 14  * Tolerant charging current, А;
... ... @@ -32,7 +32,7 @@
32 32  
33 33  (% class="box infomessage" %)
34 34  (((
35 -If there is the "Overcurrent" error, the charging relay and discharging relay open.
34 +If there is the "Overcurrent" error, the charging and discharging relay open.
36 36  )))
37 37  
38 38  == 3.6.2 Undervoltage protection ==
... ... @@ -128,7 +128,8 @@
128 128  
129 129  (% class="box infomessage" %)
130 130  (((
131 -If there is the "Low CH temperature" error, the charging relay opens. If there is the "Low DCH temperature" error, the discharging relay opens.
130 +If there is the "Low CH temperature" error, the charging relay opens.
131 +If there is the "Low DCH temperature" error, the discharging relay opens.
132 132  )))
133 133  
134 134  == 3.6.5 High temperature protection ==
... ... @@ -137,6 +137,7 @@
137 137  
138 138  To change the battery protection parameters from high temperature, select the menu "Protections → High temperature protection":
139 139  
140 +
140 140  In this section:
141 141  
142 142  * Enable – a flag to enable the protection;
... ... @@ -166,16 +166,189 @@
166 166  
167 167  == 3.6.6 Battery cover protection ==
168 168  
169 -== 3.6.7 High humidity protection ==
170 +To change the protection parameters from opening the battery cover, select the menu "Protections → Battery cover protection":
170 170  
172 +In this section:
173 +
174 +* Enable – a flag to enable the protection;
175 +* Delay before setting the error, second;
176 +* Delay before clearing the error, second;
177 +* Lock the error until the device is reset.
178 +
179 +As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
180 +
181 +Error generation conditions:
182 +
183 +* there is a signal from the battery cover during the “Delay before setting the error” time.
184 +
185 +Conditions for removing the error:
186 +
187 +* no signal from the battery cover during the “Delay before clearing the error” time.
188 +
189 +(% class="box warningmessage" %)
190 +(((
191 +**If there is the "Battery cover error", the “Critical error” is generated and all relays open.**
192 +)))
193 +
194 +== 3.6.7 High humidity protection ==
195 +
196 +The board can protect the battery from high humidity and water.
197 +
198 +To change the protection parameters of the battery from high humidity, select the menu "Protections → High humidity protection":
199 +
200 +
201 +In this section:
202 +
203 +* Enable – a flag to enable the protection;
204 +* Maximum humidty, RH%;
205 +* Tolerant humidty, RH%;
206 +* Delay before setting the error, second;
207 +* Delay before clearing the error, second;
208 +* Lock the error until the device is reset.
209 +
210 +As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
211 +
212 +Error generation conditions:
213 +
214 +* the measured humidity is greater than “Maximum humidity” during the “Delay before setting the error” time.
215 +
216 +Conditions for removing the error:
217 +
218 +* the measured humidity is less than the “Tolerant humidity” during the “Delay before clearing the error” time.
219 +
220 +(% class="box infomessage" %)
221 +(((
222 +If there is the "High humidity" error, no action is taken. The error is indicative.
223 +)))
224 +
171 171  == 3.6.8  Water protection ==
172 172  
227 +To change the protection parameters of the battery from water, select the menu "Protections → Water protection":
228 +
229 +
230 +In this section:
231 +
232 +* Enable – a flag to enable the protection;
233 +* Maximum (water) humidty, RH%;
234 +* Tolerant humidity, RH%;
235 +* Delay before setting the error, second;
236 +* Delay before clearing the error, second;
237 +* Lock the error until the device is reset.
238 +
239 +As a result of the operation of the battery protection from water, the "Water" error is generated.
240 +
241 +Error generation conditions:
242 +
243 +* the measured humidity is greater than the “Maximum (water) humidity” value during the “Delay before setting the error” time.
244 +
245 +Conditions for removing the error:
246 +
247 +* the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
248 +
249 +(% class="box warningmessage" %)
250 +(((
251 +**If there is the “Water” error, the “Critical error” is generated and all relays open.**
252 +)))
253 +
173 173  == 3.6.9 Current sensor error ==
174 174  
256 +The board is implemented to check the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
257 +
258 +To change the test parameters of the current sensor connection circuits, select the menu "Protections → Current sensor error":
259 +
260 +
261 +In this section:
262 +
263 +* Enable – a flag to enable the protection;
264 +* Maximum voltage, V;
265 +* Minimum voltage, V;
266 +* Hysteresis voltage – a hysteresis value to clear the error, V;
267 +* Delay before setting the error, second;
268 +* Delay before clearing the error, second;
269 +* Lock the error until the device is reset.
270 +
271 +If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
272 +
273 +Error generation conditions:
274 +
275 +* the voltage in the signal line or zero level line of the current sensor is greater than the “Maximum voltage” value during the “Delay before setting the error” time;
276 +* the voltage in the signal line or zero level line of the current sensor is less than the “Minimum voltage” value during the “Delay before setting the error” time.
277 +
278 +Conditions for removing the error:
279 +
280 +* the voltage in the signal line or zero level line of the current sensor is in range from (Minimum voltage + Hysteresis voltage) to (Maximum voltage - Hysteresis voltage) during the “Delay before clearing the error” time.
281 +
282 +(% class="box warningmessage" %)
283 +(((
284 +**If there is the “Current sensor error”, the “Critical error” is generated and all relays open.**
285 +)))
286 +
175 175  == 3.6.10 Short circuit protection ==
176 176  
289 +The BMS implements a protection of power circuits (contactors, power cables) against overheating caused by the flow of high current for a long time.
290 +
291 +To change the protection parameters from short circuit, select the menu "Protections → Short circuit protection":
292 +
293 +
294 +In this section:
295 +
296 +* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
297 +** Enable – a flag to enable the protection;
298 +** Maximum current, A;
299 +** Delay before setting the error, second;
300 +* Delay before clearing the error, second;
301 +* Switch off the charging relay on error – a flag to open the charging relay when the "Short circuit" error occurs;
302 +* Switch off the discharging relay on error – a flag to open the discharging relay when the "Short circuit" error occurs;
303 +* Lock the error until the device is reset.
304 +
305 +If there is a short circuit, the "Short circuit" error is generated.
306 +
307 +Error generation conditions:
308 +
309 +* at any of the three protection levels, the current modulo is greater than the “Maximum current” value during the “Delay before setting the error” time.
310 +
311 +Conditions for removing the error:
312 +
313 +* the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
314 +
315 +(% class="box infomessage" %)
316 +(((
317 +If there is the "Short circuit" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
318 +)))
319 +
177 177  == 3.6.11 Contactor high temperature protection ==
178 178  
322 +The BMS protects power contactors from overheating. To measure the temperature of the contactor, a thermistor is used, connected to the P13 connector of the board. Configuring of the analog input for temperature measurement is described in section Input signals.
323 +
324 +To change the overheating protection parameters of power contactors, select the menu "Protections → Contactor high temperature protection":
325 +
326 +
327 +In this section:
328 +
329 +* Enable – a flag to enable the protection;
330 +* Maximum temperature, °C;
331 +* Tolerant temperature, °C;
332 +* Delay before setting the error, second;
333 +* Delay before clearing the error, second;
334 +* Switch off the charging relay on error – a flag to open the charging relay when the "Contactor high temperature" error occurs;
335 +* Switch off the discharging relay on error – a flag to open the discharging relay when the "Contactor high temperature" error occurs;
336 +* Lock the error until the device is reset.
337 +
338 +If there is a contactor overheat, the "Contactor high temperature" error is generated.
339 +
340 +Error generation conditions:
341 +
342 +* the contactor temperature is greater than the “Maximum temperature” value during the “Delay before setting the error” time.
343 +
344 +Conditions for removing the error:
345 +
346 +* the contactor temperature is lower than the “Tolerant temperature” value during the “Delay before clearing the error” time.
347 +
348 +(% class="box infomessage" %)
349 +(((
350 +If there is the "Contactor high temperature" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
351 +)))
352 +
179 179  == 3.6.12 Unallowable charging protection ==
180 180  
181 181  == 3.6.13 Stuck contactor protection ==