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Changes for page LX3V-4LTC

Last modified by Devin Chen on 2024/11/22 09:42
From version 7.1
edited by Devin Chen
on 2024/10/09 11:36
Change comment: There is no comment for this version
To version 3.1
edited by Stone Wu
on 2022/09/14 16:28
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.DevinChen
1 +XWiki.Stone
Content
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1 1  = **1 Introduction** =
2 2  
3 -LX3V-4LTC is temperature control module. It has four temperature input ports and four transistor output ports (the collector is open). It reads data from thermocouple, and then output value with PID control.
3 +LX3V-4LTC is temperature control module, it has four temperature input ports and four transistor output ports (the collector is open), it reads data from thermocouple, and then output value with PID control.
4 4  
5 5  LX3V-4LTC needs to connect with LX3V series PLC
6 6  
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88 88  (% class="table-bordered" style="width:1117px" %)
89 89  |=(% rowspan="2" scope="row" style="width: 253px;" %)**Item**|=(% colspan="2" style="width: 378px;" %)**Centigrade (°C)**|=(% colspan="2" style="width: 445px;" %)**Fahrenheit (°F)**
90 90  |(% colspan="4" style="width:715px" %)Both °C and °F are available by reading the appropriate buffer memory (BFM).
91 -|(% style="width:253px" %)Input signal|(% colspan="4" style="width:823px" %)Thermocouple: Type K, J, T, E, N, B, R, S (Each type can be used for each channel), 4 channels most.
91 +|(% style="width:253px" %)Input signal|(% colspan="4" style="width:823px" %)Thermocouple: Type K, J, T, E, N, B, R, S (each type can be used for each channel), 4 channels most.
92 92  |(% rowspan="8" style="width:253px" %)(((
93 93  Rated temperature range
94 94  )))|(% style="width:130px" %)Type K|(% style="width:248px" %)-100 to +1,200|(% style="width:147px" %)Type K|(% style="width:298px" %)-148 to +2,192
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175 175  |=(% colspan="2" %)(((
176 176  **Conversion Characteristics**
177 177  
178 -Readings given at calibration reference point 0°C/32°F (0/320) respectively. (Subject to the overall accuracy)
178 +Readings given at calibration reference point 0°C/32°F (0/320) respectively. (subject to the overall accuracy)
179 179  )))
180 180  |[[image:LX3V-4LTC_html_92edc788ec28d1cf.gif||class="img-thumbnail"]]|[[image:LX3V-4LTC_html_304483742690ee7c.gif||class="img-thumbnail"]]
181 181  
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199 199  * 1: Type J
200 200  * 2: Type T
201 201  
202 +
202 202  (((
203 203  [[image:LX3V-4LTC_html_9936e798cd945c5e.gif]]
204 204  
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389 389  )))
390 390  |(% style="width:55px" %)#76~~#80|(% style="width:12px" %)#114~~#118|(% style="width:52px" %)#152~~#156|(% style="width:65px" %)#190~~#193|(% style="width:143px" %)Reserved|(% style="width:68px" %)-|(% style="width:77px" %)-|(% style="width:104px" %)-|(% style="width:348px" %)Reserved
391 391  
392 -(% class="box infomessage" %)
393 -(((
394 394  **✎Note: **
395 395  
396 396  * 0: Retentive;
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397 397  * X: Non-retentive;
398 398  * R: Only read is enabled;
399 399  * R/W: Both read and write are enabled;
400 -)))
401 401  
402 402  **Details of buffer memories**
403 403  
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460 460  
461 461  The identification code or ID number for this Special Block is read from buffer memory BFM #30 by FROM instruction. This number for the LX3V-4LTC unit is K2130. The PLC can use this ID in program to identify the special block before commencing data transfer to and from the special block.
462 462  
463 -**Power-down retention flag BFM#42**
464 -
465 -First, configure the parameters to be saved, and then set the power-down retention flag BFM#42 to 1. This enables power-down retention for the configured parameters.
466 -
467 -The operation steps are illustrated as follows:
468 -
469 -1. Set the power-down retention register to a value of 100 (e.g., BFM#52 is set to 100).
470 -1. Set the power-down retention flag BFM#42 to 1 (data is saved at this point, and BFM#42 will automatically reset to zero upon completion).
471 -1. Change the data of the power-down retention register to 1000 (e.g., BFM#52 is set to 1000).
472 -1. Power off and then power on again. At this point, check the value of the power-down retention register, which should be 100 (e.g., BFM#52 shows a value of 100)."
473 -
474 474  **Error flag BFM #43, BFM#81, BFM#119, BFM#157 (Temperature control is stopped)**
475 475  
476 476  (((
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613 613  |(% style="width:88px" %)11|(% style="width:238px" %)Alarm for Upper/lower limit deviation with wait|(% style="width:608px" %)Alarms if absolute deviation (= Measured value (PV) – Set value (SV)) is less than value of alarm. However, measured value is ignored at the start of system.|(% style="width:141px" %)+Input width
614 614  )))
615 615  
616 -(% class="box infomessage" %)
617 -(((
618 618  **✎Note: **
619 619  
620 620  * Input range: it is from the lower threshold to the upper threshold of input value
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621 621  * Input width: Width from the lower threshold to the upper threshold of input value (Input width = Upper threshold value - Lower threshold value).
622 622  * ±Input width: it could be positive and negative.
623 623  * + Input width: it could be positive only.
624 -)))
625 625  
626 626  **Alarm dead zone setting**
627 627