Changes for page 3.4 Protections
Last modified by Admin on 2025/04/09 12:19
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... ... @@ -692,6 +692,28 @@ 692 692 If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.** 693 693 ))) 694 694 695 +=== Precharge === 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 + 695 695 === Insulation === 696 696 697 697 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. ... ... @@ -783,7 +783,7 @@ 783 783 If there is the “Critical error”, **all **contactors open. 784 784 ))) 785 785 786 -=== General error === 808 +=== General error === 787 787 788 788 To change the general error parameters, select the "Protections → Critical error" section: 789 789