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Changes for page 3.3 Control

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73 73  
74 74  To change the parameters of the main contactor, select the "Control → Main contactor" section:
75 75  
76 -[[image:1740749605680-464.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="88" width="600"]]
76 +[[image:1740749605680-464.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
77 77  
78 +In this section:
79 +
80 +* Enable – a flag to enable the main contactor control;
81 +* Algorithm – main contactor control algorithm:
82 +** Always on – contactor is always closed;
83 +** Automatic – contactor closes by internal charge and discharge algorithms;
84 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed, millisecond;
85 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, millisecond;
86 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;
87 +* Errors to open the main contactor – error flags that cause the contactor to open.
88 +
89 +=== Charging status ===
90 +
91 +To change the parameters for generating status signals when charging the battery, select the section “Control → Charging status”:
92 +
93 +[[image:1740749824773-539.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
94 +
95 +In this section:
96 +
97 +* Current corresponding to charging – a current level to set the "Charging current present" signal, A;
98 +* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A.
99 +
100 +=== Discharging status ===
101 +
102 +To change the parameters for generating status signals when discharging the battery, select the section “Control → Discharging status”:
103 +
104 +[[image:1740749862820-455.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
105 +
106 +* Current corresponding to discharging – a current level to set the "Discharging current present" signal, A;
107 +* Current corresponding to no discharging – a current level to clear the "Discharging current present" signal, A.
108 +
109 +=== Precharge ===
110 +
111 +To change the precharge parameters, select the section “Control → Precharge”:
112 +
113 +[[image:1740749922669-238.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="165" width="800"]]
114 +
115 +In this section:
116 +
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 +* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
119 +* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
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 – a flag to block the error until the device is restarted.
128 +
129 +“Precharge error” generation conditions if any of the following is true:
130 +
131 +* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
132 +* voltages before and after contactors are not equal during the "Precharge time" 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 +
78 78  === Charge ===
79 79  
80 80  The BMS Main X device manages the parallel connection of the battery modules and the connection of the battery to the charging circuit.
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85 85  1. Charging is allowed provided that all battery modules are balanced (Balanced).
86 86  1. Charging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the charging.
87 87  
88 -The device controls two processes: joining battery modules and closing the main charging contactor.
150 +The device controls two processes: **joining battery modules **and **closing the main charging contactor.**
89 89  
90 90  
91 -The operation of the joining battery modules is described by the following steps:
153 +The operation of the **joining battery modules** is described by the following steps:
92 92  
93 93  1. Battery modules are disabled. When the “Join to charge” request is received and the voltage and current unbalance errors (Voltage unbalance (CH), Current unbalance (CH), Charging current unbalance) are cleared, go to step 2.
94 94  1. Checking the voltage unbalance of battery modules (the duration of the check is set in the settings). If there is no imbalance or errors are ignored (“Always on” and “Partially balanced”), go to step 3, otherwise open all charging contactors, and go to step 1.
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97 97  1. Checking intermodular balancing currents (the duration of the check is set in the settings). If there is no current unbalance (“Current unbalance (CH)”) or errors are ignored (“Always on”), go to step 6, otherwise open all charging contactors, and go to step 1.
98 98  1. The battery modules are joined. If the “Join to charge” request is cleared or the "Charging current unbalance" and "Critical error" errors occur, go to step 1.
99 99  
100 -The operation of the main charging contactor is described in the following steps:
162 +The operation of **closing the main charging contactor** is described in the following steps:
101 101  
102 102  1. The main charging contactor is open. When the “Charge request” is received, the voltage and current unbalance errors (“Voltage unbalance (CH)”, “Current unbalance (CH)”, “Charging current unbalance”) are cleared, and the battery modules are joined, go to step 2.
103 103  1. Closing the main precharging contactor (optional). Go to step 3.
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106 106  
107 107  The command to turn on the main charging contactor (“Charging”) can be issued both to the upper-level system via the CAN bus (external), and on the opto-relay of the device that serves to directly control the main charging contactor.
108 108  
109 -
110 110  In addition to controlling the charging contactors, the charge controller calculates and transmits to the upper-level system the value of the maximum allowable current, which can be used to charge the modular battery (“Charge current limit”). The calculation of the charging current of the entire battery is performed based on the number of battery modules operating per charge and the values of the current limits transmitted by them.
111 111  
112 -
113 113  The battery charge management is configured in the "Control - Charge" section:
114 114  
115 -[[image:1734356553573-447.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="600"]]
175 +[[image:1740750130950-113.png]]
116 116  
117 117  In this section:
118 118  
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