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Changes for page 3.4 Protections

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... ... @@ -96,7 +96,7 @@
96 96  * Enable – a flag to enable the protection;
97 97  * Minimum cell voltage, V;
98 98  * Tolerant cell voltage, V;
99 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage instead of measured value;
99 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
100 100  * Delay before setting the error, millisecond;
101 101  * Delay before clearing the error, second;
102 102  * Lock – a flag to block the error until the device is restarted.
... ... @@ -124,7 +124,7 @@
124 124  * Enable – a flag to enable the protection;
125 125  * Maximum cell voltage, V;
126 126  * Tolerant cell voltage, V;
127 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage instead of measured value;
127 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
128 128  * Delay before setting the error, millisecond;
129 129  * Delay before clearing the error, second;
130 130  * Lock – a flag to block the error until the device is restarted.
... ... @@ -139,33 +139,6 @@
139 139  
140 140  * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
141 141  
142 -=== Cell imbalance ===
143 -
144 -The BMS Mini S device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
145 -
146 -To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
147 -
148 -[[image:1762772978976-565.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="800"]]
149 -
150 -In this section:
151 -
152 -* Enable – a flag to enable the protection;
153 -* Maximum cell imbalance, V;
154 -* Tolerant cell imbalance, V;
155 -* Delay before setting the error, millisecond;
156 -* Delay before clearing the error, second;
157 -* Lock – a flag to block the error until the device is restarted.
158 -
159 -As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
160 -
161 -Error generation conditions:
162 -
163 -* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
164 -
165 -Conditions for removing the error:
166 -
167 -* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
168 -
169 169  === Low temperature ===
170 170  
171 171  The BMS Mini device implements battery protection from too low temperature.
... ... @@ -309,35 +309,6 @@
309 309  If there is the "Cell count error", the **“Critical error” **is generated.
310 310  )))
311 311  
312 -=== Temperature sensor count ===
313 -
314 -To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
315 -
316 -[[image:1762773073782-768.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
317 -
318 -In this section:
319 -
320 -* Enable – a flag to enable the protection;
321 -* Number of cells – a number of temperature sensors connected to the BMS;
322 -* Delay before setting the error, millisecond;
323 -* Delay before clearing the error, second;
324 -* Lock – a flag to block the error until the device is restarted.
325 -
326 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
327 -
328 -Error generation conditions:
329 -
330 -* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
331 -
332 -Conditions for removing the error:
333 -
334 -* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
335 -
336 -(% class="box warningmessage" %)
337 -(((
338 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
339 -)))
340 -
341 341  === Short circuit ===
342 342  
343 343  The BMS Mini device implements a protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
... ... @@ -576,11 +576,6 @@
576 576  
577 577  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
578 578  
579 -(% class="box warningmessage" %)
580 -(((
581 -If there is the "Stuck contactor" error, the **“Critical error” **is generated.
582 -)))
583 -
584 584  === Contactor feedback ===
585 585  
586 586  The BMS Mini device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to corresponding contactor feedback pin on X1 header.
... ... @@ -600,11 +600,6 @@
600 600  
601 601  * a command for charging, precharge, discharging, charging/discharging or main contactor not matches its feedback value.
602 602  
603 -(% class="box warningmessage" %)
604 -(((
605 -If there is the "Contactor feedback" error, the **“Critical error” **is generated.
606 -)))
607 -
608 608  === Insulation ===
609 609  
610 610  The BMS Mini device can detect a signal from an external insulation monitoring device (such as Bender IR155) to monitor the insulation quality.
... ... @@ -626,11 +626,6 @@
626 626  
627 627  Error is set if corresponding discrete input is set up and it receives logical zero.
628 628  
629 -(% class="box warningmessage" %)
630 -(((
631 -If there is the "Insulation" error, the **“Critical error” **is generated.
632 -)))
633 -
634 634  === Critical error ===
635 635  
636 636  To change the critical error parameters, select the "Protections → Critical error" section:
... ... @@ -644,29 +644,21 @@
644 644  * Delay before clearing the error, second;
645 645  * Lock – a flag to block the error until the device is restarted.
646 646  
647 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
576 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
648 648  
649 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
578 +* “Battery cover error”;
579 +* “Cell monitor offline”;
580 +* “Cell count error”;
581 +* “ADC error”;
582 +* “Current sensor error”;
583 +* “Shunt offline”;
584 +* “Shunt error”;
585 +* “No temp. sensors”;
586 +* “Temp. sensor is shorted”;
587 +* “Settings error”;
588 +* “WDT reset”;
589 +* “Stuck contactor”;
590 +* “Contactor feedback error”;
591 +* “Insulation fault”.
650 650  
651 -=== General error ===
652 -
653 -To change the general error parameters, select the "Protections → Critical error" section:
654 -
655 -[[image:1740573914327-561.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="129" width="800"]]
656 -
657 -In this section:
658 -
659 -* Enable – a flag to enable the protection;
660 -* Delay before setting the error, millisecond;
661 -* Delay before clearing the error, second;
662 -* Lock – a flag to block the error until the device is restarted;
663 -* Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
664 -
665 -The “General error” is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
666 -
667 -The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
668 -
669 -(% class="box warningmessage" %)
670 -(((
671 -The state of the “General error” can be assigned to a discrete output or to a power switch.
672 -)))
593 +The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
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