Changes for page 3.6 Battery protection
Last modified by Admin on 2025/04/09 12:25
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... ... @@ -197,6 +197,7 @@ 197 197 198 198 To change the protection parameters of the battery from high humidity, select the menu "Protections → High humidity protection": 199 199 200 + 200 200 In this section: 201 201 202 202 * Enable – a flag to enable the protection; ... ... @@ -216,17 +216,139 @@ 216 216 217 217 * the measured humidity is less than the “Tolerant humidity” during the “Delay before clearing the error” time. 218 218 220 +(% class="box infomessage" %) 221 +((( 219 219 If there is the "High humidity" error, no action is taken. The error is indicative. 223 +))) 220 220 221 - 222 222 == 3.6.8 Water protection == 223 223 227 +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 + 224 224 == 3.6.9 Current sensor error == 225 225 256 +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 + 226 226 == 3.6.10 Short circuit protection == 227 227 289 +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 + 228 228 == 3.6.11 Contactor high temperature protection == 229 229 322 +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 + 230 230 == 3.6.12 Unallowable charging protection == 231 231 232 232 == 3.6.13 Stuck contactor protection ==