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Changes for page 3.5 Battery control

Last modified by Admin on 2025/03/10 12:50
From version 4.2
edited by Admin
on 2024/11/21 17:09
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To version 6.2
edited by Admin
on 2024/11/21 17:12
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144 144  
145 145  To change the parameters of the powering of external equipment, select the menu "Cells → Discharging (AUX) control":
146 146  
147 -[[Caption>>image:1732208939544-710.png||data-xwiki-image-style-alignment="center" height="397" width="445"]]
147 +[[Discharging (AUX) control settings>>image:1732208939544-710.png||data-xwiki-image-style-alignment="center" height="397" width="445"]]
148 +
149 +In this section:
150 +
151 +* Enable – a flag to activate the auxiliary discharge control;
152 +* Switch off the discharging (AUX) relay at low SOC:
153 +** Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging relay opens, %;
154 +** Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging relay re-closes, %;
155 +* Switch off the discharging (AUX) relay if the battery voltage is out of the range:
156 +** Minimum voltage – minimum battery voltage, V;
157 +** Maximum voltage – maximum battery voltage, V;
158 +* Switch off the discharging (AUX) relay on errors – the auxiliary (AUX) discharging relay opens if the following errors occur: Undervoltage, Overcurrent, High temperature (discharging), Short circuit, Critical error.
159 +
160 +== 3.5.4 Charging/Discharging control ==
161 +
162 + BMS Main 2.x allows to control charging/discharging contactor that combines algorithms of charging and discharging contactor. It behaves as charging contactor when «Charge request» or «Charger connected» are set, otherwise – as discharging contactor.
163 +
164 +To change the parameters of the charging/discharging algorithm, select the menu "Cells → Charging/Discharging control":
165 +
166 +[[Charging/Discharging control settings>>image:1732209044117-558.png||data-xwiki-image-style-alignment="center" height="102" width="259"]]
167 +
168 +
169 +In this section:
170 +
171 +* Enable – a flag to enable Charging/Discharging contactor controller.
172 +
173 +== 3.5.5 Main contactor ==
174 +
175 +The BMS Main 2.x has a relay to control the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactor.
176 +
177 +The main contactor closes if there are no errors from the list below:
178 +
179 +* Overcurrent;
180 +* Undervoltage;
181 +* Overvoltage;
182 +* High temperature (charging);
183 +* High temperature (discharging);
184 +* Unallowable charging;
185 +* Critical error.
186 +
187 +The main contactor opens if the charging and discharging relays are opened and any of the following conditions is met:
188 +
189 +* charging or discharging current is detected during a set time;
190 +* voltage of any cell is lower than the minimum cell voltage configured in the section "Protections → Undervoltage protection" during a set time;
191 +* voltage of any cell is greater than the maximum cell voltage configured in the section "Protections → Overvoltage protection" during a set time;
192 +* temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature protection" during a set time;
193 +* Critical error stays on during a set time.
194 +
195 +To change the parameters of the main contactor, select the menu "Cells → Main contactor":
196 +
197 +[[Caption>>image:1732209137414-912.png||data-xwiki-image-style-alignment="center" height="132" width="352"]]
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