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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
From version 6.5
edited by Admin
on 2025/01/28 16:09
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To version 8.3
edited by Admin
on 2025/01/28 16:16
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110 110  
111 111  To change the precharge parameters, select the section “Control → Precharge”:
112 112  
113 -[[image:1734089664376-736.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="56" width="600"]]
113 +[[image:1738080762857-975.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="600"]]In this section:
114 114  
115 -In this section:
116 116  
117 117  * 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;
118 118  * 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;
119 -* Minimum voltage difference to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V.
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.
120 120  
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 +
121 121  === Charge ===
122 122  
123 123  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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168 168  * Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
169 169  * 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;
170 170  * 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;
172 172  * Balancing modules time – a time of balancing battery modules, millisecond;
173 173  * Control the precharging contactor – a flag to control the main precharging contactor;
174 -* Precharging time – a time of precharging, millisecond;
175 175  * 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;
178 178  * Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared.
179 179  * 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;
180 180  * Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
181 181  * 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;
182 182  * Errors 1 (2) to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
183 183  * Errors 1 (2) to open the charging contactor – errors that cause the main charging contactor "Charging" to open;
184 184  * 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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