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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
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110 110  
111 111  To change the precharge parameters, select the section “Control → Precharge”:
112 112  
113 -[[image:1738080762857-975.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="600"]]In this section:
113 +[[image:1734089664376-736.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="56" width="600"]]
114 114  
115 +In this section:
115 115  
116 116  * Precharge current threshold to close the discharging contactor – a current value to ensure that precharge process has finished and it is allowed to close the discharging contactor, A;
117 117  * Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
118 -* Minimum voltage difference before and after contactors to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V;
119 -* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
120 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
121 -* Relaxation between attempts – a duration between precharge attempts, millisecond;
122 -* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
123 -* Precharge resistor resistance, Ohm;
124 -* Maximum allowable power dissipated in the resistor, W;
125 -* Delay before setting the "Precharge error" when checking power, millisecond;
126 -* Delay before clearing the "Precharge error", second;
127 -* Lock the "Precharge error" – a flag to block the error until the device is restarted.
119 +* Minimum voltage difference before and after contactors to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V.
128 128  
129 -“Precharge error” generation conditions:
130 -
131 -* the precharge current does not decrease after "Number of precharging attempts";
132 -* voltages before and after contactors are not equal after "Number of precharging attempts";
133 -* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
134 -
135 -(% class="box warningmessage" %)
136 -(((
137 -Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
138 -)))
139 -
140 140  === Charge ===
141 141  
142 142  The BMS Main 3X device manages the parallel connection of the battery modules and the connection of the battery to the charging circuit.
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187 187  * Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
188 188  * Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
189 189  * Checking voltages time – a time of checking voltages of battery modules, millisecond;
171 +* Pre-balancing modules time – a time of pre-charging battery modules, millisecond;
190 190  * Balancing modules time – a time of balancing battery modules, millisecond;
191 191  * Control the precharging contactor – a flag to control the main precharging contactor;
174 +* Precharging time – a time of precharging, millisecond;
192 192  * Canceling charging time – a delay before opening the main charging contactor, ms;
176 +* Limit module current – a flag that allows to limit the charging current of a modular battery so that the current of each battery module does not exceed its maximum allowable charge current;
177 +* Slew rate – a rate of change of the charge current limit when the “Limit module current” flag is set, A/s;
193 193  * Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared.
194 194  * Disconnect all modules if one is not ready to charge – a flag for disconnecting all modules if any of the modules have the “Ready to charge” signal cleared;
195 195  * Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
196 196  * Maximum charge current limit – a maximum allowed charging current of all battery, A;
197 -* Maximum charge current limit – a maximum allowed charging current of all battery, A;
198 198  * Errors 1 (2) to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
199 199  * Errors 1 (2) to open the charging contactor – errors that cause the main charging contactor "Charging" to open;
200 200  * Switch of the charging contactor on errors without a delay – a flag that allows the main charging contactor “Charging” to be opened without delay if errors are detected.
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