Changes for page 3.6 Battery protection

Last modified by Admin on 2025/04/09 12:25

From 37.1 to 36.5 From 46.1 to 45.1

From version 45.1

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on 2025/02/19 10:36

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To version 37.1

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on 2024/12/02 15:51

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--Battery management systems.BMS Main 2\.1.3\. Configuration.WebHome
++drafts.BMS Main 2\.1.3\. Configuration.WebHome

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@@ -1,12 +7,6 @@
--(% 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;" %)
--= Configuration =
--
--(% data-numbered-headings-start="6" style="--numbered-headings-start: 5;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
--== Battery protection ==
--
  The BMS Main 2.x board continuously monitors the state of the cells, BMS Logic boards, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
--=== Overcurrent protection ===
++== 3.6.1 Overcurrent protection ==
  To change the current protection of the battery, select the menu "Protections → Overcurrent protection":
@@ -40,13 +40,13 @@
  If there is the "Overcurrent" error, the **charging **and **discharging **relay open.
  )))
--=== Undervoltage protection ===
++== 3.6.2 Undervoltage protection ==
  The board implements battery protection from too low or too high voltage on the cells.
  To change the battery protection parameters from low voltage on the cells, select the menu "Protections → Undervoltage protection":
--[[image:1739960999969-617.png||alt="1739961158202-478.png" data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="228" width="351"]]
++[[image:1732212212350-294.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="207" width="359"]]
   In this section:
@@ -53,7 +53,6 @@
  * Enable – a flag to enable the protection;
  * Minimum cell voltage, V;
  * Tolerant cell voltage, V;
--* Check the open circuit voltage instead of the actual voltage – a flag to enable U,,ocv,, correction depending on cell current and resistance;
  * Delay before setting the error, second;
  * Delay before clearing the error, second;
  * Lock the error until the device is reset.
@@ -73,11 +73,11 @@
  If there is the "Undervoltage" error, the **discharging **relay opens.
  )))
--=== Overvoltage protection ===
++== 3.6.3 Overvoltage protection ==
  To change the battery protection parameters from high voltage on the cells, select the menu "Protections → Overvoltage protection":
--[[image:1739961158202-478.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="237" width="353"]]
++[[image:1732212357972-295.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="218" width="338"]]
  In this section:
@@ -84,7 +84,6 @@
  * Enable – a flag to enable the protection;
  * Maximum cell voltage, V;
  * Tolerant cell voltage, V;
--* Check the open circuit voltage instead of the actual voltage – a flag to enable U,,ocv,, correction depending on cell current and resistance;
  * Delay before setting the error, second;
  * Delay before clearing the error, second;
  * Switch off the discharging relay on error – a flag to open the discharging relay when the "Overvoltage" error is generated;
@@ -105,7 +105,7 @@
  If there is the "Overvoltage" error, the **charging **relay and **discharging **relay opens (if the “Switch off the discharging relay on error” flag is set).
  )))
--=== Low temperature protection ===
++== 3.6.4 Low temperature protection ==
  The board implements battery protection from too low temperature.
@@ -140,7 +140,7 @@
  If there is the "Low DCH temperature" error, the **discharging **relay opens.
  )))
--=== High temperature protection ===
++== 3.6.5 High temperature protection ==
  The board implements battery protection from too high temperature.
@@ -175,7 +175,7 @@
  If there is the "High DCH temperature" error, the **discharging **relay opens.
  )))
--=== Battery cover protection ===
++== 3.6.6 Battery cover protection ==
  To change the protection parameters from opening the battery cover, select the menu "Protections → Battery cover protection":
@@ -203,7 +203,7 @@
  If there is the "Battery cover error", the **“Critical error” **is generated and **all relays open.**
  )))
--=== High humidity protection ===
++== 3.6.7 High humidity protection ==
  The board can protect the battery from high humidity and water.
@@ -235,7 +235,7 @@
  If there is the "High humidity" error, no action is taken. The error is indicative.
  )))
--=== Water protection ===
++== 3.6.8  Water protection ==
  To change the protection parameters of the battery from water, select the menu "Protections → Water protection":
@@ -265,7 +265,7 @@
  If there is the “Water” error,** **the **“Critical error”** is generated and **all relays open.**
  )))
--=== Current sensor error ===
++== 3.6.9 Current sensor error ==
  The board is implemented to check the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
@@ -299,7 +299,7 @@
  If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
  )))
--=== Short circuit protection ===
++== 3.6.10 Short circuit protection ==
  The BMS implements a protection of power circuits (contactors, power cables) against overheating caused by the flow of high current for a long time.
@@ -333,7 +333,7 @@
  If there is the "Short circuit" error, the **charging **relay opens (the “Switch off the charging relay on error” flag is set) and the **discharging **relay opens (the “Switch off the discharging relay on error flag” is set).
  )))
--=== Contactor high temperature protection ===
++== 3.6.11 Contactor high temperature protection ==
  The BMS protects power contactors from overheating. To measure the temperature of the contactor, a thermistor is used, connected to the P13 connector of the board. Configuring of the analog input for temperature measurement is described in section Input signals.
@@ -367,7 +367,7 @@
  If there is the "Contactor high temperature" error, the **charging **relay opens (the “Switch off the charging relay on error” flag is set) and the **discharging **relay opens (the “Switch off the discharging relay on error flag” is set).
  )))
--=== Unallowable charging protection ===
++== 3.6.12 Unallowable charging protection ==
  The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging relay to prevent unallowable battery operation.
@@ -397,7 +397,7 @@
  If there is the "Unallowable charging" error, the **discharging **relay opens.
  )))
--=== Stuck contactor protection ===
++== 3.6.13 Stuck contactor protection ==
  The BMS Main 2.x protects contactors against sticking.
@@ -423,9 +423,9 @@
  If there is the “Stuck contactor error”, the **“Critical error” **is generated and **all relays open.**
  )))
--=== Contactor feedback check ===
++== 3.6.14 Contactor feedback check ==
--The BMS Main 2.x can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, one of the discrete input must be set as corresponding contactor feedback signal (see [[Input and output signals>>doc:Battery management systems.BMS Main 2\.1.3\. Configuration.3\.3 Input and output signals.WebHome]]).
++The BMS Main 2.x can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, one of the discrete input must be set as corresponding contactor feedback signal (see [[3.3 Input and output signals>>path:/bin/view/drafts/BMS%20Main%202.1/3.%20Configuration/3.3%20Input%20and%20output%20signals/]]).
  To change the contactor feedback check parameters, select the menu "Protections → Contactor feedback check":
@@ -447,7 +447,7 @@
  If there is the contactor feedback error, the **“Critical error” **is generated and **all relays open.**
  )))
--=== Charging contactor cycles protection ===
++== 3.6.15 Charging contactor cycles protection ==
  The BMS protects the charging contactor against frequent switching.
@@ -480,7 +480,7 @@
  If there is the "CH contactor cycles error" error, the **charging **relay opens.
  )))
--=== Discharging contactor cycles protection ===
++== 3.6.16 Discharging contactor cycles protection ==
  The BMS protects the discharging contactor against frequent switching.
@@ -513,7 +513,7 @@
  If there is the "DCH contactor cycles error" error, the **discharging **relay opens.
  )))
--=== Temperature sensor error ===
++== 3.6.17 Temperature sensor error ==
  The board is implemented to check the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
@@ -535,7 +535,7 @@
  If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated and **all relays open.**
  )))
--=== Logic high temperature protection ===
++== 3.6.18 Logic high temperature protection ==
  To change the overheating protection parameters of BMS Logic boards, select the menu "Protections → Logic high temperature protection":
@@ -563,7 +563,7 @@
  Cell balancing is prohibited for overheated boards.
  )))
--=== Logic offline protection ===
++== 3.6.19 Logic offline protection ==
  To change the protection parameters from loss of communication with BMS Logic boards, select the menu "Protections → Logic offline protection":
@@ -589,7 +589,7 @@
  If there is the "Logic offline" error, the **“Critical error”** is generated and **all relays open.**
  )))
--=== Cell count protection ===
++== 3.6.20 Cell count protection ==
  To change the protection parameters from the mismatch of the number of cells to the set value, select the menu "Protections → Cell count protection":
@@ -618,7 +618,7 @@
  If there is the "Cell count error",** **the **“Critical error”** is generated and **all relays open.**
  )))
--=== Logic count protection ===
++== 3.6.21 Logic count protection ==
  To change the protection parameters from the mismatch of the number of BMS Logic boards to the set value, select the menu "Protections → Logic count protection":
@@ -628,7 +628,7 @@
  * Enable – a flag to enable the protection;
  * Logic count – a number of BMS Logic boards connected to the BMS Main 2.x;
--* Fast scanning – a flag to scan BMS Logic boards fast (boards with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
++* Fast scan – a flag to scan BMS Logic boards fast (boards with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
  * Lock the error until the device is reset.
  As a result of the operation of the protection from the mismatch of the number of BMS Logic boards, the "Logic count error" is generated.
@@ -646,7 +646,7 @@
  If there is the "Logic count error", the **“Critical error” **is generated and **all relays open.**
  )))
--=== WDT protection ===
++== 3.6.22 WDT protection ==
  If the BMS firmware hangs, the watchdog timer resets the board. The BMS can detect that the board was reset and generates the “WDT reset” error.
@@ -669,7 +669,7 @@
  If there is the "WDT reset" error, the **“Critical error”** is generated and** all relays open.**
  )))
--=== Insulation monitoring ===
++== 3.6.23 Insulation monitoring ==
  BMS Main 2.x can detect a signal from an external insulation monitoring device (such as Bender IR155) to monitor the insulation quality.
@@ -680,10 +680,6 @@
  In this section:
  * Enable – a flag to enable the protection;
--* Algorithm:
--** Always;
--** On charging;
--** Except charging;
  * Delay before setting the error, second;
  * Delay before clearing the error, second;
  * Lock the error until the device is reset.
@@ -695,7 +695,7 @@
  If there is the "Insulation monitoring" error, the **“Critical error”** is generated and** all relays open.**
  )))
--=== Critical error parameters ===
++== 3.6.24 Critical error parameters ==
  To change the critical error parameters, select the menu "Protections → Critical error parameters":
@@ -734,7 +734,7 @@
  **If there is the “Critical error”, all relays open.**
  )))
--=== General error parameters ===
++== 3.6.25 General error parameters ==
  To change the general error parameters, select the menu "Protections → General error parameters":
@@ -748,7 +748,7 @@
  * Lock the error until the device is reset;
  * Errors – a section to select errors that should trigger General error.
--The general error flag is generated if at least one of the selected errors is generated during the “Delay before setting the error” time.
++The critical error flag is generated if at least one of the selected errors is generated during the “Delay before setting the error” time.
  The “General error” is cleared if there are no errors from selected list during the “Delay before clearing the error” time.
@@ -757,7 +757,7 @@
  The "General error" is //indicative //and can be linked to any discrete output of the board.
  )))
--=== Low SOC signal ===
++== 3.6.26 Low SOC signal ==
  To change the parameters of the generation a signal about low battery level, select the menu "Protections → Low SOC signal":
@@ -785,7 +785,7 @@
  The "Low SOC signal" is //indicative //and can be linked to any discrete output of the board.
  )))
--=== High charging current signal ===
++== 3.6.27 High charging current signal ==
  To change the parameters of the generation high-current signal, select the menu "Protections → High charging current signal":
@@ -813,7 +813,7 @@
  The "High charging current" signal is //indicative //and can be linked to any discrete output of the board.
  )))
--=== Heater control ===
++== 3.6.28 Heater control ==
  To change the parameters of the heater control algorithm, select the menu "Protections → Heater control":
@@ -844,7 +844,7 @@
  If there is the "Heater" signal, the **heater **relay closes and/or a signal is output to the corresponded digital output.
  )))
--=== Heater (AUX) control ===
++== 3.6.29 Heater (AUX) control ==
  To change the parameters of the auxiliary heater control algorithm, select the menu "Protections → Heater (AUX) control":
@@ -875,7 +875,7 @@
  If there is the "Heater (AUX)" signal, the **auxiliary heater **relay closes and/or a signal is output to the corresponded digital output.
  )))
--=== Cooler control ===
++== 3.6.30 Cooler control ==
  To change the parameters of the cooler control algorithm, select the menu "Protections → Cooler control":
@@ -906,7 +906,7 @@
  If there is the "Cooler" signal, the **cooler **relay closes and/or a signal is output to the corresponded digital output.
  )))
--=== Fault simulation ===
++== 3.6.31 Fault simulation ==
  The board provides the ability to manually generate error flags bypassing the protection algorithms. This functionality is intended for commissioning.

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Changes for page 3.6 Battery protection

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