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Changes for page 3.2 Inputs and outputs

Last modified by Admin on 2025/02/24 11:11
From version 1.1
edited by Admin
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To version 7.1
edited by Admin
on 2025/02/24 11:11
Change comment: There is no comment for this version

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1 -drafts.BMS Mini S.3\. Configuration.WebHome
1 +Battery management systems.BMS Mini S.3\. Configuration.WebHome
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12 12  
13 13  [[image:1733743676787-110.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="173" width="800"]]
14 14  
15 -The device supports the following discrete inputs assignments:
15 +(% class="box infomessage" %)
16 +(((
17 +A list of available discrete input assignments is available in [[Input signals>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HInputsignals"]].
18 +)))
16 16  
17 -* No input – input is not used;
18 -* Battery cover – a signal from the battery cover;
19 -* Charger connected – a signal indicating that charger is connected;
20 -* Power up/down request – a request to power down the device;
21 -* Inhibit charging – a command to open the charging contactor;
22 -* Inhibit discharging – a command to open the discharging contactor;
23 -* Insulation status – a signal from an insulation monitoring device;
24 -* Charge request – a request to close the charging contactor;
25 -* Precharge request – a request to close the precharging contactor;
26 -* Discharge request – a request to close the discharging contactor.
27 -
28 28  Inversion flags for discrete inputs are configured in the "Signals → Input discrete signals → Inversion" section:
29 29  
30 30  [[image:1733743676791-123.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
31 31  
32 -
33 33  === Current sensor ===
34 34  
35 35  The BMS Mini device has an ability to measure battery current by an external Hall-Effect current sensor.
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64 64  
65 65  The BMS Mini device has an ability to measure battery current via shunt sensor, connected to CAN bus.
66 66  
58 +(% class="box infomessage" %)
59 +(((
60 +**Note: **The shunt sensor communication protocol can be provided by request.
61 +)))
62 +
67 67  Shunt sensor settings are configured in the "Signals → Shunt sensor (CAN bus)" section:
68 68  
69 69  [[image:1733743676793-251.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
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75 75  * Invert – a flag to invert current values;
76 76  * Receive timeout – a timeout for receiving messages from BMS Current Sensor (if no data is being received from the current sensor during this time, the “Shunt offline” flag is set), millisecond;
77 77  * Mean value threshold – T,,M,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is between T,,M,, and T,,0,,, the BMS will use mean value of current I,,M,,; if I,,I,, is greater than T,,M,,, the BMS will use instantaneous value of current I,,I,,);
74 +* Zero threshold – T,,0,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is lower than T,,0,,, the BMS will assume that current flowing through the battery is zero);
78 78  
79 -Zero threshold – T,,0,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is lower than T,,0,,, the BMS will assume that current flowing through the battery is zero);
80 -
81 81  === Temperature sensor ===
82 82  
83 83  Temperature sensors settings are configured in the "Signals → Temperature sensors" section:
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96 96  
97 97  [[image:1733743676795-962.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
98 98  
99 -The device supports the following digital output assignments:
94 +(% class="box infomessage" %)
95 +(((
96 +A list of available discrete output assignments is available in [[Internal signals>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HInternalsignals"]].
97 +)))
100 100  
101 -* No output – output is not used.
102 -* Cooler – a command to turn on a cooler;
103 -* Heater – a command to turn on a heater;
104 -* Allow charging – a signal for a charger to start charging;
105 -* Precharging – a signal to charge the capacitive load;
106 -* Power down ACK – an acknowledgement of BMS power down. Acknowledgement is outputted when the charge and discharge contactors have been opened on power down request;
107 -* Power up – an indication of BMS power status.
108 -
109 109  Inversion flags for discrete outputs are configured in the "Signals → Output discrete signals → Inversion" section:
110 110  
111 111  [[image:1733743676796-673.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="169" width="800"]]
112 112  
113 -
114 114  === MOSFETs ===
115 115  
116 116  The BMS Mini device has four MOSFET switches to drive contactors. For each switch, its assignment and inversion flag are set.
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119 119  
120 120  [[image:1733743676797-285.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
121 121  
122 -The device supports the following switch assignments:
111 +(% class="box infomessage" %)
112 +(((
113 +A list of available discrete output assignments is available in [[Internal signals>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HInternalsignals"]].
114 +)))
123 123  
124 -* No output – switch is not used;
125 -* Charging – charging contactor;
126 -* Discharging – discharging contactor;
127 -* Heater – heater contactor;
128 -* Allow charging – a signal for a charger to start charging;
129 -* Precharging – precharge contactor;
130 -* Cooler – cooler contactor;
131 -* Discharging (AUX) – auxiliary discharging contactor;
132 -* Main contactor – main contactor;
133 -* Charging/Discharging – charging/discharging contactor;
134 -* Power up – power up contactor.
135 -
136 136  Inversion flags for switches are configured in the “Signals → MOSFETs → Inversion” section:
137 137  
138 138  [[image:1733743676798-103.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="157" width="800"]]
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141 141  
142 142  [[image:1733743676799-349.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="157" width="800"]]
143 143  
144 -
145 145  === Wire resistance compensation ===
146 146  
147 -The BMS Mini is powered directly from the battery. This causes the voltages of the first and last battery cells to be measured with an error, the magnitude of which is proportional to the current drawn by the BMS and the resistance of the wires connecting these cells to the BMS. To compensate for the cell voltage measurement error, the BMS Mini provides a wire resistance setting.
126 +(% class="box warningmessage" %)
127 +(((
128 +**Warning!**
129 +This section applies only to **BMS Mini S v1.0 **and **BMS Mini v2.0 **(devices without X9 header).
130 +)))
148 148  
132 +The BMS Mini is powered directly from the battery. This causes the voltages of the first and the last cells to be measured with an error, the magnitude of which is proportional to the current drawn by the BMS and the resistance of the wires connecting these cells to the BMS. To compensate for the cell voltage measurement error, the BMS Mini provides a wire resistance setting.
133 +
149 149  Setting the resistance of the wires connecting the first and last cells of the battery with the BMS is performed in the “Signals → Wire resistance compensation” section:
150 150  
151 151  [[image:1733743676800-295.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
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