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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 8.2
edited by Admin
on 2025/01/28 16:14
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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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