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Changes for page 3.2 Inputs and outputs

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2 -= Configuration =
3 -
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5 -== Inputs and outputs ==
6 -
7 -=== Discrete inputs ===
8 -
9 -The BMS Main 3X device has **6 discrete inputs** that detect signal line closing to the virtual ground, and **2 inputs** that detect 9-32V input voltage. For each discrete input, its assignment and inversion flag are set.
10 -
11 -Also, BMS has two additional configurable inputs named “KEYRUN” and “CHARGE_ON”, each serves 9-32V input voltage. Those inputs serve as power buttons with additional functions that can be set.
12 -
13 -Assignments of discrete inputs are configured in the "Signals → Input discrete signals → Assignments" section:
14 -
15 -[[image:1734022225578-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="600"]]
16 -
17 -The device supports the following assignments for discrete inputs:
18 -
19 -* No input – input is not used;
20 -* Battery cover – a signal from the battery cover;
21 -* Charge request – a request to close the charging contactor;
22 -* Precharge request – a request to close the precharging contactor;
23 -* Discharge request – a request to close the discharging contactor;
24 -* Charging contactor feedback – a signal from charging contactor feedback loop;
25 -* Discharging contactor feedback – a signal from discharging contactor feedback loop;
26 -* Charging/Discharging contactor feedback – a signal from charging/discharging contactor feedback loop;
27 -* Insulation status – a signal from an insulation monitoring device;
28 -* Join to charge – a request to join (connect in parallel) battery modules to charge the battery;
29 -* Join to discharge – a request to join (connect in parallel) battery modules to discharge the battery;
30 -* Precharge contactor feedback – a signal from precharging contactor feedback loop;
31 -* Main contactor feedback – a signal from main contactor feedback loop;
32 -* Interlock – a signal from interlock loop;
33 -* Power down request – a request to power down the BMS.
34 -
35 -Inversion flags for discrete inputs are configured in the "Signals → Input discrete signals → Inversion" section:
36 -
37 -[[image:1734022225583-740.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="600"]]
38 -
39 -The behavior of “KEYRUN” signal can be configured in the "Signals → Input discrete signals → KEYRUN mode" section:
40 -
41 -[[image:1734022225584-474.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="87" width="600"]]
42 -
43 -The behavior of “CHARGE_ON” signal can be configured in the "Signals → Input discrete signals → CHARGE_ON mode" section:
44 -
45 -[[image:1734022225585-775.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="89" width="600"]]
46 -
47 -In both “KEYRUN mode” and “CHARGE_ON mode” sections:
48 -
49 -* Do nothing – power on device and do nothing;
50 -* Set “Join to discharge” – power on device and set “Join to discharge” signal immediately;
51 -* Set “Join to charge” – power on device and set “Join to charge” signal immediately;
52 -* Set “Discharge request” – power on device and set “Discharge request” signal immediately;
53 -* Set “Charge request” – power on device and set “Charge request” signal immediately.
54 -
55 -=== Current sensor ===
56 -
57 -The BMS Main 3X device has an ability to measure battery current by **3 external Hall-Effect current sensors**.
58 -
59 -Current sensor settings are configured in the "Signals → Current sensor" section:
60 -
61 -[[image:1734022225586-287.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="600"]]
62 -
63 -The device supports the following current sensor settings:
64 -
65 -* Calculate the battery current as the sum of battery modules currents – a flag that determines overall current as sum of battery modules currents (if flag is not set, device uses measurements from a physical current sensor);
66 -* Connection – type of multiple sensors connection
67 -** One sensor (#1) – only first sensor is used to measure the battery current;
68 -** Two sensors (#1 and #2) in parallel – sensors are connected in parallel (the total battery current equals the sum of two sensors);
69 -** Two sensors (#1 and #2) in different branches – sensors located in two halves of the battery (used in batteries with a middle point);
70 -* Sensor 2, 3: Enable – a flag to enable the second of third current sensor;
71 -* Sensor 1, 2, 3: Nominal current – rated current I,,nom,, of the sensor according to the datasheet, A;
72 -* Sensor 1, 2, 3: Sensitivity – sensitivity of the current sensor according to the datasheet, V / I,,nom.,,;
73 -* Sensor 1, 2, 3: Invert – invert the sign of the measured value;
74 -* Sensor 1, 2, 3: Multiply charging current (experimental) – an experimental flag for scaling the charging current by given multiplier;
75 -* Sensor 1, 2, 3: Multiplier for charging current – charging current multiplier;
76 -* Sensor 1, 2, 3: REF_IN2 mode – mode of additional analog line:
77 -** Not connected;
78 -** Reference line – reference output of the sensor;
79 -** Low range (for the dual range sensor) - a second output of a dual-range sensor (for example, LEM DHAB series);
80 -* Sensor 1, 2, 3: Low range nominal current - rated current I,,nom,, of the low current line of dual range sensor according to the datasheet, A;
81 -* Sensor 1, 2, 3: Low range sensitivity – sensitivity of the low current line of dual range sensor according to the datasheet, V / I,,nominal.,,;
82 -* Sensor 1, 2, 3: Threshold for low range – a threshold current value at which the device uses the readings of the high current sensor instead of low current, A;
83 -* Calibrate – a flag to calibrate (find a 0A point) the current sensor when the device is started;
84 -* Calibration time – calibration time of the current sensor, millisecond;
85 -* Recalibrate current sensor – a command to calibrate the current sensor manually.
86 -
87 -=== Temperature sensors ===
88 -
89 -Temperature sensors settings are configured in the "Signals → Temperature sensors" section:
90 -
91 -[[image:1734022225587-758.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="58" width="600"]]
92 -
93 -In this section:
94 -
95 -* Type – a type of temperature sensors.
96 -
97 -=== Output discrete signals ===
98 -
99 -The BMS Main 3X device has **4 open drain outputs**. For each discrete output, its assignment and inversion flag are set.
100 -
101 -Assignments of discrete outputs are configured in the "Signals → Output discrete signals → Assignments" section:
102 -
103 -[[image:1734022225588-223.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="131" width="600"]]
104 -
105 -The device supports the following assignments for discrete outputs:
106 -
107 -* No output – output is not used.
108 -* Charging – state of the charging contactor;
109 -* Discharging – state of the discharging contactor;
110 -* Charging/Discharging - state of the charging/discharging contactor;
111 -* Precharging – state of the precharging contactor;
112 -* Heater – a command to turn on a heater;
113 -* Cooler – a command to turn on a cooler;
114 -* Main contactor – state of the main contactor.
115 -
116 -Inversion flags for discrete outputs are configured in the "Signals → Output discrete signals → Inversion" section:
117 -
118 -[[image:1734022225589-659.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="600"]]
119 -
120 -
121 -=== Power switches ===
122 -
123 -The BMS Main 3X device has **6 power switches to drive contactors**. For each switch, its assignment and inversion flag are set.
124 -
125 -Assignments of power switches are configured in the "Signals → Power switches → Assignments" section:
126 -
127 -[[image:1734022225590-811.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="600"]]
128 -
129 -The device supports the same switch assignments as discrete outputs.
130 -
131 -Inversion flags for switches are configured in the “Signals → Power switches → Inversion” section:
132 -
133 -[[image:1734022225591-262.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="600"]]
134 -
135 -
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