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Changes for page LX3V-4LTC

Last modified by Devin Chen on 2024/11/22 09:42
From version 3.1
edited by Stone Wu
on 2022/09/14 16:28
Change comment: There is no comment for this version
To version 8.1
edited by Devin Chen
on 2024/11/22 09:42
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.Stone
1 +XWiki.DevinChen
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 -
203 203  (((
204 204  [[image:LX3V-4LTC_html_9936e798cd945c5e.gif]]
205 205  
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285 285  * Other: Starts control;
286 286  )))
287 287  |(% style="width:55px" %)#48|(% style="width:12px" %)#86|(% style="width:52px" %)#124|(% style="width:65px" %)#162|(% style="width:143px" %)Auto/manual mode changeover|(% style="width:68px" %)0|(% style="width:77px" %)W/R|(% style="width:104px" %)0|(% style="width:348px" %)(((
288 -* 0: AUTO;
289 -* Other: MAN;
287 +* 0: Autol mode;
288 +* Other: Manual mode;
290 290  )))
291 291  |(% style="width:55px" %)#49|(% style="width:12px" %)#87|(% style="width:52px" %)#125|(% style="width:65px" %)#163|(% style="width:143px" %)Manual output set value|(% style="width:68px" %)0|(% style="width:77px" %)W/R|(% style="width:104px" %)0|(% style="width:348px" %)The value is equal to the value of control output in manual mode.
292 292  |(% style="width:55px" %)#50|(% style="width:12px" %)#88|(% style="width:52px" %)#126|(% style="width:65px" %)#164|(% style="width:143px" %)Self-tuning execution command|(% style="width:68px" %)0|(% style="width:77px" %)W/R|(% style="width:104px" %)0|(% style="width:348px" %)(((
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390 390  )))
391 391  |(% 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
392 392  
392 +(% class="box infomessage" %)
393 +(((
393 393  **✎Note: **
394 394  
395 395  * 0: Retentive;
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396 396  * X: Non-retentive;
397 397  * R: Only read is enabled;
398 398  * R/W: Both read and write are enabled;
400 +)))
399 399  
400 400  **Details of buffer memories**
401 401  
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458 458  
459 459  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.
460 460  
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 +
461 461  **Error flag BFM #43, BFM#81, BFM#119, BFM#157 (Temperature control is stopped)**
462 462  
463 463  (((
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600 600  |(% 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
601 601  )))
602 602  
616 +(% class="box infomessage" %)
617 +(((
603 603  **✎Note: **
604 604  
605 605  * Input range: it is from the lower threshold to the upper threshold of input value
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606 606  * Input width: Width from the lower threshold to the upper threshold of input value (Input width = Upper threshold value - Lower threshold value).
607 607  * ±Input width: it could be positive and negative.
608 608  * + Input width: it could be positive only.
624 +)))
609 609  
610 610  **Alarm dead zone setting**
611 611