Changes for page 3.4 Protections

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• Page properties (2 modified, 0 added, 0 removed)

Details

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Parent

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1		-drafts.bms-main-3.3\. Settings.WebHome
	1	+Battery management systems.BMS Main 3.3\. Configuration.WebHome

Content

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1	1	(% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2		-= SettingsThe BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage. =
	2	+= Configuration =
3	3
4	4	(% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5	5	== Protections ==
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42	42	If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43	43	)))
44	44
	45	+=== Charge current limit ===
	46	+
	47	+TBA
	48	+
	49	+=== Discharge current limit ===
	50	+
	51	+TBA
	52	+
45	45	=== Undervoltage ===
46	46
47	47	The BMS Main 3 device implements battery protection from too low voltage on the cells.
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269	269	If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
270	270	)))
271	271
272		-=== High Logic temperature ===
	280	+=== Logic high temperature ===
273	273
274	274	To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
275	275
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294	294
295	295	* a BMS Logic device temperature is less than the “Tolerant temperature” value.
296	296
297		-(% class="box warningmessage" %)
	305	+(% class="box infomessage" %)
298	298	(((
299		-Overheated Logic devices do not balance cells.
	307	+Cell balancing is disabled on Logic devices with high temperature.
300	300	)))
301	301
302	302	=== Logic offline ===
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503	503	If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
504	504	)))
505	505
	514	+=== Power fault ===
	515	+
	516	+TBA
	517	+
506	506	=== Charge contactor cycles ===
507	507
508	508	The BMS Main 3 device protects the charging contactor against frequent switching.
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535	535	If there is the "CH contactor cycles error" error, the **charging **contactor opens.
536	536	)))
537	537
538		-=== ​​​​​​​Discharge contactor cycles ===
	550	+=== Discharge contactor cycles ===
539	539
540	540	The BMS Main 3 device protects the discharging contactor against frequent switching.
541	541
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586	586
587	587	(% class="box warningmessage" %)
588	588	(((
589		-If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**​​​​​​​
	601	+If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
590	590	)))
591	591
592	592	=== WDT reset ===
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612	612	If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
613	613	)))
614	614
615		-=== ​​​​​​​Unallowable charging ===
	627	+=== Unallowable charging ===
616	616
617	617	The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging contactor to prevent unallowable battery operation.
618	618
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642	642	If there is the "Unallowable charging" error, the **discharging **contactor opens.
643	643	)))
644	644
645		-=== ​​​​​​​Stuck contactor ===
	657	+=== Stuck contactor ===
646	646
647	647	The BMS Main 3 device protects contactors against sticking.
648	648
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692	692	If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
693	693	)))
694	694
695		-=== ​​​​​​​Precharge ===
	707	+=== Insulation ===
696	696
697		-BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. To change the pre-charge monitoring parameters, select the "Protections → Precharge" section:
698		-
699		-[[image:1733328487097-648.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
700		-
701		-In this section:
702		-
703		-* Enable – a flag to enable the protection;
704		-* Delay before setting the error, millisecond;
705		-* Delay before clearing the error, second;
706		-* Lock – a flag to block the error until the device is restarted.
707		-
708		-As a result of the protection algorithms the “Precharge error” is generated. Error generation conditions:
709		-
710		-* precharging process cannot be finished (the precharge current does not decrease or voltages before and after contactors are not equal) during the “Delay before setting the error” time.
711		-
712		-(% class="box infomessage" %)
713		-(((
714		-If there is the “Precharge error”, **charging **and **discharging **contactors open.
715		-)))
716		-
717		-=== ​​​​​​​Insulation ===
718		-
719	719	The BMS Main 3 device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
720	720
721	721	To change the insulation monitoring parameters, select the "Protections → Insulation" section:
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805	805	If there is the “Critical error”, **all **contactors open.
806	806	)))
807	807
808		-=== ​​​​​​​General error ===
	798	+=== General error ===
809	809
810	810	To change the general error parameters, select the "Protections → Critical error" section:
811	811