Changes for page 3.4 Protections

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...	...	@@ -4,11 +4,17 @@
4	4	(% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5	5	== Protections ==
6	6
7		-The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
	7	+The BMS Main 3 / BMS Main 2R device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8	8
	9	+(% class="box errormessage" %)
	10	+(((
	11	+**Attention!**
	12	+Behavior of contactors at different errors is configured in **corresponding contactor settings**!
	13	+)))
	14	+
9	9	=== Overcurrent ===
10	10
11		-The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
	17	+The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
12	12
13	13	To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14	14
...	...	@@ -16,14 +16,14 @@
16	16
17	17	In this section:
18	18
19		-* Enable – a flag to enable the protection;
20		-* Maximum charging current, А;
21		-* Tolerant charging current, А;
22		-* Maximum discharging current, А;
23		-* Tolerant discharging current, А;
24		-* Delay before setting the error, millisecond;
25		-* Delay before clearing the error, second;
26		-* Lock – a flag to block the error until the device is restarted.
	25	+* **Enable **– a flag to enable the protection;
	26	+* **Maximum charging current**, А;
	27	+* **Tolerant charging current**, А;
	28	+* **Maximum discharging current**, А;
	29	+* **Tolerant discharging current**, А;
	30	+* **Delay before setting the error**, millisecond;
	31	+* **Delay before clearing the error**, second;
	32	+* **Lock **– a flag to block the error until the device is restarted.
27	27
28	28	As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
29	29
...	...	@@ -37,31 +37,47 @@
37	37	* the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
38	38	* the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
39	39
40		-(% class="box infomessage" %)
41		-(((
42		-If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43		-)))
44		-
45	45	=== Charge current limit ===
46	46
47		-The BMS Main 3 device can check the charging current with the limit based on the Charge map. If current is more than estimated maximum, "Current limit" error is generated.
	48	+The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48	48
	50	+Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
	51	+
49	49	To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
50	50
51	51	[[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
52	52
53		-* Enable – a flag to enable the protection;
54		-* Threshold to switch from Region 1 to Region 2
55		-*
	56	+* **Enable **– a flag to enable the protection;
	57	+* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
	58	+* **Region 1: Current difference** – a value of maximum absolute current difference, A;
	59	+* **Region 2: Current difference** – a value of maximum relative current excess, A;
	60	+* **Delay before setting the error**, millisecond;
	61	+* **Delay before clearing the error**, second;
	62	+* **Lock **– a flag to block the error until the device is restarted.
56	56
57		-
58	58	=== Discharge current limit ===
59	59
60		-TBA
	66	+The BMS Main 3 / BMS Main 2R device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
61	61
	68	+Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
	69	+
	70	+To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
	71	+
	72	+[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
	73	+
	74	+In this section:
	75	+
	76	+* **Enable **– a flag to enable the protection;
	77	+* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
	78	+* **Region 1: Current difference** – a value of maximum absolute current difference, A;
	79	+* **Region 2: Current difference** – a value of maximum relative current excess, A;
	80	+* **Delay before setting the error**, millisecond;
	81	+* **Delay before clearing the error**, second;
	82	+* **Lock **– a flag to block the error until the device is restarted.
	83	+
62	62	=== Undervoltage ===
63	63
64		-The BMS Main 3 device implements battery protection from too low voltage on the cells.
	86	+The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
65	65
66	66	To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
67	67
...	...	@@ -69,13 +69,13 @@
69	69
70	70	In this section:
71	71
72		-* Enable – a flag to enable the protection;
73		-* Minimum cell voltage, V;
74		-* Tolerant cell voltage, V;
75		-* 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;
76		-* Delay before setting the error, millisecond;
77		-* Delay before clearing the error, second;
78		-* Lock – a flag to block the error until the device is restarted.
	94	+* **Enable **– a flag to enable the protection;
	95	+* **Minimum cell voltage**, V;
	96	+* **Tolerant cell voltage**, V;
	97	+* **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;
	98	+* **Delay before setting the error**, millisecond;
	99	+* **Delay before clearing the error**, second;
	100	+* **Lock **– a flag to block the error until the device is restarted.
79	79
80	80	As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
81	81
...	...	@@ -87,14 +87,9 @@
87	87
88	88	* the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
89	89
90		-(% class="box infomessage" %)
91		-(((
92		-If there is the "Undervoltage" error, the **discharging **contactor opens.
93		-)))
94		-
95	95	=== Overvoltage ===
96	96
97		-The BMS Main 3 device implements battery protection from too high voltage on the cells.
	114	+The BMS Main 3 / BMS Main 2R device implements battery protection from too high voltage on the cells.
98	98
99	99	To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
100	100
...	...	@@ -102,13 +102,13 @@
102	102
103	103	In this section:
104	104
105		-* Enable – a flag to enable the protection;
106		-* Maximum cell voltage, V;
107		-* Tolerant cell voltage, V;
108		-* 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;
109		-* Delay before setting the error, millisecond;
110		-* Delay before clearing the error, second;
111		-* Lock – a flag to block the error until the device is restarted.
	122	+* **Enable **– a flag to enable the protection;
	123	+* **Maximum cell voltage**, V;
	124	+* **Tolerant cell voltage**, V;
	125	+* **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;
	126	+* **Delay before setting the error**, millisecond;
	127	+* **Delay before clearing the error**, second;
	128	+* **Lock **– a flag to block the error until the device is restarted.
112	112
113	113	As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
114	114
...	...	@@ -120,14 +120,34 @@
120	120
121	121	* 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.
122	122
123		-(% class="box infomessage" %)
124		-(((
125		-If there is the "Overvoltage" error, the **charging** contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set).
126		-)))
	140	+=== Cell imbalance ===
127	127
	142	+The BMS Main 3 / BMS Main 2R 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.
	143	+
	144	+To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
	145	+
	146	+[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
	147	+
	148	+* **Enable **– a flag to enable the protection;
	149	+* **Maximum cell imbalance**, V;
	150	+* **Tolerant cell imbalance**, V;
	151	+* **Delay before setting the error**, millisecond;
	152	+* **Delay before clearing the error**, second;
	153	+* **Lock **– a flag to block the error until the device is restarted.
	154	+
	155	+As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
	156	+
	157	+Error generation conditions:
	158	+
	159	+* 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.
	160	+
	161	+Conditions for removing the error:
	162	+
	163	+* 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.
	164	+
128	128	=== Low temperature ===
129	129
130		-The BMS Main 3 device implements battery protection from too low temperature.
	167	+The BMS Main 3 / BMS Main 2R device implements battery protection from too low temperature.
131	131
132	132	To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
133	133
...	...	@@ -135,14 +135,14 @@
135	135
136	136	In this section:
137	137
138		-* Enable – a flag to enable the protection;
139		-* Minimum charge temperature, °C;
140		-* Tolerant charge temperature, °C;
141		-* Minimum discharge temperature, °C;
142		-* Tolerant discharge temperature, °C;
143		-* Delay before setting the error, millisecond;
144		-* Delay before clearing the error, second;
145		-* Lock – a flag to block the error until the device is restarted.
	175	+* **Enable **– a flag to enable the protection;
	176	+* **Minimum charge temperature**, °C;
	177	+* **Tolerant charge temperature**, °C;
	178	+* **Minimum discharge temperature**, °C;
	179	+* **Tolerant discharge temperature**, °C;
	180	+* **Delay before setting the error**, millisecond;
	181	+* **Delay before clearing the error**, second;
	182	+* **Lock **– a flag to block the error until the device is restarted.
146	146
147	147	As a result of the operation of the battery protection from low temperature, the "Low temperature (CH)" and/or “Low temperature (DCH)” error are generated.
148	148
...	...	@@ -154,15 +154,9 @@
154	154
155	155	* the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
156	156
157		-(% class="box infomessage" %)
158		-(((
159		-If there is the "Low temperature (CH)" error, the **charging **contactor opens.
160		-If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
161		-)))
162		-
163	163	=== High temperature ===
164	164
165		-The BMS Main 3 device implements battery protection from too high temperature.
	196	+The BMS Main 3 / BMS Main 2R device implements battery protection from too high temperature.
166	166
167	167	To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
168	168
...	...	@@ -170,14 +170,14 @@
170	170
171	171	In this section:
172	172
173		-* Enable – a flag to enable the protection;
174		-* Maximum charge temperature, °C;
175		-* Tolerant charge temperature, °C;
176		-* Maximum discharge temperature, °C;
177		-* Tolerant discharge temperature, °C;
178		-* Delay before setting the error, millisecond;
179		-* Delay before clearing the error, second;
180		-* Lock – a flag to block the error until the device is restarted.
	204	+* **Enable **– a flag to enable the protection;
	205	+* **Maximum charge temperature**, °C;
	206	+* **Tolerant charge temperature**, °C;
	207	+* **Maximum discharge temperature**, °C;
	208	+* **Tolerant discharge temperature**, °C;
	209	+* **Delay before setting the error**, millisecond;
	210	+* **Delay before clearing the error**, second;
	211	+* **Lock **– a flag to block the error until the device is restarted.
181	181
182	182	As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
183	183
...	...	@@ -189,12 +189,6 @@
189	189
190	190	* the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
191	191
192		-(% class="box infomessage" %)
193		-(((
194		-If there is the "High temperature (CH)" error, the **charging **contactor opens.
195		-If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
196		-)))
197		-
198	198	=== Battery cover ===
199	199
200	200	To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
...	...	@@ -203,10 +203,10 @@
203	203
204	204	In this section:
205	205
206		-* Enable – a flag to enable the protection;
207		-* Delay before setting the error, millisecond;
208		-* Delay before clearing the error, second;
209		-* Lock – a flag to block the error until the device is restarted.
	231	+* **Enable** – a flag to enable the protection;
	232	+* **Delay before setting the error**, millisecond;
	233	+* **Delay before clearing the error**, second;
	234	+* **Lock **– a flag to block the error until the device is restarted.
210	210
211	211	As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
212	212
...	...	@@ -220,12 +220,12 @@
220	220
221	221	(% class="box warningmessage" %)
222	222	(((
223		-If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
	248	+If there is the "Battery cover error", the **“Critical error” **is generated**.**
224	224	)))
225	225
226	226	=== High humidity ===
227	227
228		-The BMS Main 3 can detect that the battery is operating in high humidity conditions.
	253	+The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
229	229
230	230	To change the detection parameters, select the "Protections → High humidity" section:
231	231
...	...	@@ -233,12 +233,12 @@
233	233
234	234	In this section:
235	235
236		-* Enable – a flag to enable the detection;
237		-* Maximum humidity, RH%;
238		-* Tolerant humidity, RH%;
239		-* Delay before setting the error, second;
240		-* Delay before clearing the error, second;
241		-* Lock the error until the device is reset.
	261	+* **Enable **– a flag to enable the detection;
	262	+* **Maximum humidity**, RH%;
	263	+* **Tolerant humidity**, RH%;
	264	+* **Delay before setting the error**, second;
	265	+* **Delay before clearing the error**, second;
	266	+* **Lock **– a flag to block the error until the device is restarted.
242	242
243	243	As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
244	244
...	...	@@ -257,7 +257,7 @@
257	257
258	258	=== Water ===
259	259
260		-The BMS Main 3 can protect the battery from working in very high humidity conditions.
	285	+The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
261	261
262	262	To change the protection parameters, select the "Protections → Water" section:
263	263
...	...	@@ -282,9 +282,9 @@
282	282
283	283	* the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
284	284
285		-(% class="box infomessage" %)
	310	+(% class="box warningmessage" %)
286	286	(((
287		-If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
	312	+If there is the “Water” error, the **“Critical error”** is generated.
288	288	)))
289	289
290	290	=== Logic high temperature ===
...	...	@@ -321,11 +321,14 @@
321	321
322	322	To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
323	323
324		-[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
	349	+[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
325	325
	351	+
326	326	In this section:
327	327
328	328	* Enable – a flag to enable the protection;
	355	+* Delay before setting the error, second;
	356	+* Delay before clearing the error, second;
329	329	* Lock – lock the error until the device is reset.
330	330
331	331	As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
...	...	@@ -340,7 +340,7 @@
340	340
341	341	(% class="box warningmessage" %)
342	342	(((
343		-If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
	371	+If there is the "Logic offline" error, the **“Critical error” **is generated**.**
344	344	)))
345	345
346	346	=== Cell count ===
...	...	@@ -369,14 +369,43 @@
369	369
370	370	(% class="box warningmessage" %)
371	371	(((
372		-If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
	400	+If there is the "Cell count error", the **“Critical error” **is generated**.**
373	373	)))
374	374
	403	+=== Temperature sensor count ===
	404	+
	405	+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:
	406	+
	407	+[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
	408	+
	409	+In this section:
	410	+
	411	+* Enable – a flag to enable the protection;
	412	+* Number of cells – a number of temperature sensors connected to the BMS;
	413	+* Delay before setting the error, millisecond;
	414	+* Delay before clearing the error, second;
	415	+* Lock – a flag to block the error until the device is restarted.
	416	+
	417	+As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
	418	+
	419	+Error generation conditions:
	420	+
	421	+* 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.
	422	+
	423	+Conditions for removing the error:
	424	+
	425	+* 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.
	426	+
	427	+(% class="box warningmessage" %)
	428	+(((
	429	+If there is the "T-sensor count error", the **“Critical error” **is generated**.**
	430	+)))
	431	+
375	375	=== Logic count ===
376	376
377	377	To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
378	378
379		-[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
	436	+[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
380	380
381	381	In this section:
382	382
...	...	@@ -383,6 +383,8 @@
383	383	* Enable – a flag to enable the protection;
384	384	* Logic count – a number of BMS Logic devices connected to the BMS Main;
385	385	* Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
	443	+* Delay before setting the error – a delay before setting the error //during initialization//, millisecond;
	444	+* Delay before clearing the error– a delay before clearing the error //during initialization//, second;
386	386	* Lock – lock the error until the device is reset.
387	387
388	388	As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
...	...	@@ -389,20 +389,22 @@
389	389
390	390	Error generation conditions:
391	391
392		-* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
	451	+* during the initialization BMS Main 3 / BMS Main 2R have not found required number of BMS Logic devices during the "Delay before setting the error" time;
	452	+* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
393	393
394	394	Conditions for removing the error:
395	395
396		-* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
	456	+* during the initialization BMS Main 3 / BMS Main 2R have found required number of BMS Logic devices and the "Delay before setting the error" time has passed;
	457	+* after the initialization the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
397	397
398	398	(% class="box warningmessage" %)
399	399	(((
400		-If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
	461	+If there is the "Logic count error", the **“Critical error”** is generated.
401	401	)))
402	402
403	403	=== Short circuit ===
404	404
405		-The BMS Main 3 device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
	466	+The BMS Main 3 / BMS Main 2R device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
406	406
407	407	To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
408	408
...	...	@@ -427,14 +427,9 @@
427	427
428	428	* the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
429	429
430		-(% class="box infomessage" %)
431		-(((
432		-If there is the "Short circuit" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error flag” is set).
433		-)))
434		-
435	435	=== High contactor temperature ===
436	436
437		-The BMS Main 3 device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
	493	+The BMS Main 3 / BMS Main 2R device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
438	438
439	439	To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
440	440
...	...	@@ -460,14 +460,9 @@
460	460
461	461	* the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
462	462
463		-(% class="box infomessage" %)
464		-(((
465		-If there is the "High contactor temperature" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error” flag is set).
466		-)))
467		-
468	468	=== Current sensor ===
469	469
470		-The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
	521	+The BMS Main 3 / BMS Main 2R device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
471	471
472	472	To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
473	473
...	...	@@ -496,12 +496,12 @@
496	496
497	497	(% class="box warningmessage" %)
498	498	(((
499		-If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
	550	+If there is the “Current sensor error”, the **“Critical error” **is generated.
500	500	)))
501	501
502	502	=== Power switch ===
503	503
504		-BMS Main 3 device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
	555	+BMS Main 3 / BMS Main 2R device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
505	505
506	506	[[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
507	507
...	...	@@ -514,16 +514,42 @@
514	514
515	515	(% class="box warningmessage" %)
516	516	(((
517		-If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
	568	+If there is the "Power switch error", the **“Critical error” **is generated.
518	518	)))
519	519
520	520	=== Power fault ===
521	521
522		-TBA
	573	+BMS Main 3 / BMS Main 2R device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
523	523
	575	+(% class="box infomessage" %)
	576	+(((
	577	+**Note:** this error can be configured only under** "Service" account**.
	578	+)))
	579	+
	580	+To change the parameters of the power fault error, select the "Protections → Power fault" section:
	581	+
	582	+[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
	583	+
	584	+In this section:
	585	+
	586	+* Enable – a flag to enable the protection;
	587	+* Delay before setting the error, millisecond;
	588	+* Time to keep power off, millisecond;
	589	+* Delay before clearing the error, millisecond;
	590	+* Lock – a flag to block the error until the device is restarted.
	591	+
	592	+The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again.
	593	+
	594	+Error is removed when the power consumption is normal during “Delay before clearing the error” time.
	595	+
	596	+(% class="box warningmessage" %)
	597	+(((
	598	+If there is the "Power fault", the **“Critical error” **is generated.
	599	+)))
	600	+
524	524	=== Charge contactor cycles ===
525	525
526		-The BMS Main 3 device protects the charging contactor against frequent switching.
	603	+The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
527	527
528	528	To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
529	529
...	...	@@ -548,14 +548,9 @@
548	548
549	549	* the “Delay before clearing the error” time has passed since the error was generated.
550	550
551		-(% class="box infomessage" %)
552		-(((
553		-If there is the "CH contactor cycles error" error, the **charging **contactor opens.
554		-)))
555		-
556	556	=== Discharge contactor cycles ===
557	557
558		-The BMS Main 3 device protects the discharging contactor against frequent switching.
	630	+The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
559	559
560	560	To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
561	561
...	...	@@ -580,14 +580,9 @@
580	580
581	581	* the “Delay before clearing the error” time has passed since the error was generated.
582	582
583		-(% class="box infomessage" %)
584		-(((
585		-If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
586		-)))
587		-
588	588	=== Temperature sensors ===
589	589
590		-The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
	657	+The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
591	591
592	592	To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
593	593
...	...	@@ -604,7 +604,7 @@
604	604
605	605	(% class="box warningmessage" %)
606	606	(((
607		-If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
	674	+If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
608	608	)))
609	609
610	610	=== WDT reset ===
...	...	@@ -627,7 +627,7 @@
627	627
628	628	(% class="box warningmessage" %)
629	629	(((
630		-If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
	697	+If there is the "WDT reset" error, the **“Critical error” **is generated.
631	631	)))
632	632
633	633	=== Unallowable charging ===
...	...	@@ -655,14 +655,9 @@
655	655
656	656	* the battery current is zero during the “Delay before clearing the error” time.
657	657
658		-(% class="box infomessage" %)
659		-(((
660		-If there is the "Unallowable charging" error, the **discharging **contactor opens.
661		-)))
662		-
663	663	=== Stuck contactor ===
664	664
665		-The BMS Main 3 device protects contactors against sticking.
	727	+The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
666	666
667	667	To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
668	668
...	...	@@ -683,12 +683,12 @@
683	683
684	684	(% class="box warningmessage" %)
685	685	(((
686		-If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
	748	+If there is the “Stuck contactor” error, the **“Critical error” **is generated.
687	687	)))
688	688
689	689	=== Contactor feedback ===
690	690
691		-The BMS Main 3 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 the corresponding contactor feedback pin on the X3 header.
	753	+The BMS Main 3 / BMS Main 2R 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 the corresponding contactor feedback pin on the X3 header.
692	692
693	693	To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
694	694
...	...	@@ -707,12 +707,12 @@
707	707
708	708	(% class="box warningmessage" %)
709	709	(((
710		-If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
	772	+If there is the “Contactor feedback” error, the **“Critical error” **is generated.
711	711	)))
712	712
713	713	=== Insulation ===
714	714
715		-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.
	777	+The BMS Main 3 / BMS Main 2R 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.
716	716
717	717	To change the insulation monitoring parameters, select the "Protections → Insulation" section:
718	718
...	...	@@ -733,12 +733,12 @@
733	733
734	734	(% class="box warningmessage" %)
735	735	(((
736		-If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
	798	+If there is the “Insulation fault”, the **“Critical error”** is generated.
737	737	)))
738	738
739	739	=== HVIL ===
740	740
741		-The BMS Main 3 allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
	803	+The BMS Main 3 / BMS Main 2R allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
742	742
743	743	To change the HVIL measurement parameters, select the "Protections → HVIL" section:
744	744
...	...	@@ -753,58 +753,66 @@
753	753	* Source is ON: Upper current limit, A;
754	754	* Lock – a flag to block the error until the device is restarted.
755	755
756		-If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated. Error clears if interlock loop is being restored.
	818	+If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
757	757
	820	+Error clears if interlock loop is being restored.
	821	+
758	758	(% class="box warningmessage" %)
759	759	(((
760		-If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
	824	+If there is the “HVIL error”, the **“Critical error”** is generated.
761	761	)))
762	762
763		-=== Critical error ===
	827	+=== Battery voltage ===
764	764
765		-To change the critical error parameters, select the "Protections → Critical error" section:
	829	+The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
766	766
767		-[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
	831	+To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
768	768
	833	+[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
	834	+
769	769	In this section:
770	770
771	771	* Enable – a flag to enable the protection;
772		-* Delay before setting the error, millisecond;
	838	+* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
	839	+* Delay before setting the error, second;
773	773	* Delay before clearing the error, second;
774	774	* Lock – a flag to block the error until the device is restarted.
775	775
776		-The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
	843	+If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
777	777
778		-* “Battery cover error”;
779		-* “Water”;
780		-* “Logic offline”;
781		-* “Cell count error”;
782		-* “ADC error”;
783		-* “Current sensor error”;
784		-* “Shunt offline”;
785		-* “Shunt error”;
786		-* “WDT reset”
787		-* “No temp. sensors”;
788		-* “Temperature sensor shorted”;
789		-* “Stuck contactor”;
790		-* “CH contactor feedback error”;
791		-* “DCH contactor feedback error”;
792		-* “Insulation fault”;
793		-* “PCH contactor feedback error”;
794		-* “CH/DCH contactor feedback error”;
795		-* “Main contactor feedback error”;
796		-* “High voltage fault”;
797		-* “Power switch error”;
798		-* “HVIL error”l
799		-* “Power fault”.
	845	+Error generation conditions:
800	800
801		-The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
	847	+* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
802	802
803		-(% class="box infomessage" %)
	849	+Conditions for removing the error:
	850	+
	851	+* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
	852	+
	853	+(% class="box warningmessage" %)
804	804	(((
805		-If there is the “Critical error”, **all **contactors open.
	855	+If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
806	806	)))
807	807
	858	+=== Critical error ===
	859	+
	860	+Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
	861	+
	862	+To change the critical error parameters, select the "Protections → Critical error" section:
	863	+
	864	+[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
	865	+
	866	+In this section:
	867	+
	868	+* Enable – a flag to enable the protection;
	869	+* Delay before setting the error, millisecond;
	870	+* Delay before clearing the error, second;
	871	+* Errors 1, 2 to to ignore when setting the critical error;
	872	+* Lock – a flag to block the error until the device is restarted.
	873	+
	874	+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.
	875	+
	876	+The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
	877	+
808	808	=== General error ===
809	809
810	810	To change the general error parameters, select the "Protections → Critical error" section:
...	...	@@ -819,11 +819,11 @@
819	819	* Lock – a flag to block the error until the device is restarted;
820	820	* Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
821	821
822		-The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
	892	+The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
823	823
824	824	The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
825	825
826	826	(% class="box infomessage" %)
827	827	(((
828		-The state of the “General error” can be output to a discrete output or a power switch.
	898	+The state of the “General error” can be assigned to a discrete output or to a power switch.
829	829	)))

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