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Changes for page LX3V-4LTC

Last modified by Devin Chen on 2024/11/22 09:42
From version 4.1
edited by Mora Zhou
on 2023/11/22 10:31
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

Details

Page properties
Author
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1 -XWiki.Mora
1 +XWiki.DevinChen
Content
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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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284 284  * Other: Starts control;
285 285  )))
286 286  |(% 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" %)(((
287 -* 0: AUTO;
288 -* Other: MAN;
287 +* 0: Autol mode;
288 +* Other: Manual mode;
289 289  )))
290 290  |(% 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.
291 291  |(% 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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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 +(((
392 392  **✎Note: **
393 393  
394 394  * 0: Retentive;
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395 395  * X: Non-retentive;
396 396  * R: Only read is enabled;
397 397  * R/W: Both read and write are enabled;
400 +)))
398 398  
399 399  **Details of buffer memories**
400 400  
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457 457  
458 458  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.
459 459  
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 +
460 460  **Error flag BFM #43, BFM#81, BFM#119, BFM#157 (Temperature control is stopped)**
461 461  
462 462  (((
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599 599  |(% 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
600 600  )))
601 601  
616 +(% class="box infomessage" %)
617 +(((
602 602  **✎Note: **
603 603  
604 604  * Input range: it is from the lower threshold to the upper threshold of input value
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605 605  * Input width: Width from the lower threshold to the upper threshold of input value (Input width = Upper threshold value - Lower threshold value).
606 606  * ±Input width: it could be positive and negative.
607 607  * + Input width: it could be positive only.
624 +)))
608 608  
609 609  **Alarm dead zone setting**
610 610