Changes for page 3.4 Protections
Last modified by Admin on 2025/06/11 15:57
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... ... @@ -191,10 +191,10 @@ 191 191 192 192 * Enable – a flag to enable the protection; 193 193 * Delta voltage – maximum allowable voltage difference of battery modules, V; 194 -* Use the open circuit voltage to detect the error – a flag to enable Uocv correction; 194 +* Use the open circuit voltage to detect the error – a flag to enable U,,ocv,, correction; 195 195 * Delay before setting the error; 196 196 * Delay before clearing the error; 197 -* Set the 'V' 197 +* Set the 'Voltage unbalance' error for the modules that are not ready to charge/discharge; 198 198 * Lock – a flag to block the error until the device is restarted. 199 199 200 200 As a result of the operation of the voltage unbalance protection the errors “Voltage unbalance (CH)” and “Voltage unbalance (DCH)” are generated. ... ... @@ -201,11 +201,13 @@ 201 201 202 202 Conditions for generating the error: 203 203 204 -* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time. 204 +* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time; 205 +* module is not ready to charge or discharge; 205 205 206 206 Conditions for clearing the error: 207 207 208 -* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time. 209 +* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time; 210 +* module is ready to charge or discharge. 209 209 210 210 === Current unbalance (in “Balancing” state) === 211 211 ... ... @@ -213,7 +213,7 @@ 213 213 214 214 Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance": 215 215 216 -[[image:1734 356793451-440.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]218 +[[image:Battery management systems.BMS Main 3X.3\. Configuration.3\.4 Protections.WebHome@1734090244843-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]] 217 217 218 218 In this section: 219 219 ... ... @@ -221,19 +221,23 @@ 221 221 * Maximum current – a maximum allowable self-balancing current of battery modules, A; 222 222 * Delay before setting the error; 223 223 * Delay before clearing the error; 226 +* Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state; 224 224 * Lock – a flag to block the error until the device is restarted. 225 225 226 226 As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated. Conditions for generating the error: 227 227 228 -* current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time. 231 +* the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time. 229 229 230 230 Conditions for clearing the error: 231 231 232 -* current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time. 235 +* the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time. 233 233 234 -If there is the error "Current unbalance (CH)" ("Current unbalance (DCH)"), the charging (discharging) contactor of the battery module opens. 237 +(% class="box infomessage" %) 238 +((( 239 +If there is the “Current unbalance (CH)” or "Current unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**. 240 +))) 235 235 236 -=== Charging current unbalance === 242 +=== Charging current unbalance (in “Charging” state) === 237 237 238 238 During battery charging, the currents of the battery modules may vary. The BMS Main X device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them. 239 239 ... ... @@ -257,7 +257,10 @@ 257 257 258 258 * battery module is included in the largest group of modules with similar charge currents during the “Delay before clearing the error” time. 259 259 260 -If there is the “Charging current unbalance” error, the battery module charging contactor opens. 266 +(% class="box infomessage" %) 267 +((( 268 +If there is the “Charging current unbalance” error, **corresponding battery module opens its charging contactor**. 269 +))) 261 261 262 262 === Discharging current unbalance === 263 263 ... ... @@ -283,8 +283,19 @@ 283 283 284 284 * battery module is included in the largest group of modules with similar discharge currents during the “Delay before clearing the error” time. 285 285 286 -If there is the “Discharging current unbalance” error, the battery module discharging contactor opens. 295 +(% class="box infomessage" %) 296 +((( 297 +If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**. 298 +))) 287 287 300 +=== High contactor temperature === 301 + 302 +=== WDT reset === 303 + 304 +If the BMS firmware hangs, the watchdog timer resets the device. The BMS can detect that the device was reset and generates the “WDT reset” error. 305 + 306 +To change the parameters of the watchdog protection, select the "Protections → WDT reset" section: 307 + 288 288 === Critical error === 289 289 290 290 Parameters for generating the critical error are configured in the "Protections - Critical error" section:
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