Categories: 学习经验

西门子PID功能块FB43(PULSEGEN)高级功能

<h2>FB43 &OpenCurlyDoubleQuote;PULSEGEN” 高级功能<&sol;h2>&NewLine;<p>表1&period; FB43 &OpenCurlyDoubleQuote;PULSEGEN” 控制模式<&sol;p>&NewLine;<table border&equals;"1" width&equals;"100&percnt;">&NewLine;<tbody>&NewLine;<tr>&NewLine;<th scope&equals;"col" width&equals;"40&percnt;">模式<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"15&percnt;">MAN&lowbar;ON<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"15&percnt;">STEP3&lowbar;ON<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"15&percnt;">ST2BI&lowbar;ON<&sol;th>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">三步控制<&sol;th>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<td>Any<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row"><a href&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;tag&sol;&percnt;e5&percnt;8f&percnt;8c&percnt;e6&percnt;9e&percnt;81&percnt;e6&percnt;8e&percnt;a7&percnt;e5&percnt;88&percnt;b6&sol;" title&equals;"查看与 双极控制 相关的文章" target&equals;"&lowbar;blank"><span class&equals;"tag-key">双极控制<&sol;span><&sol;a>范围的两步控制<br &sol;>&NewLine;(-100&percnt;~100&percnt;)<&sol;th>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row" height&equals;"24"><a href&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;tag&sol;&percnt;e5&percnt;8d&percnt;95&percnt;e6&percnt;9e&percnt;81&percnt;e6&percnt;8e&percnt;a7&percnt;e5&percnt;88&percnt;b6&sol;" title&equals;"查看与 单极控制 相关的文章" target&equals;"&lowbar;blank"><span class&equals;"tag-key">单极控制<&sol;span><&sol;a>范围的两步控制<br &sol;>&NewLine;(0~100&percnt;)<&sol;th>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">手动模式<&sol;th>&NewLine;<td>1<&sol;td>&NewLine;<td>Any<&sol;td>&NewLine;<td>Any<&sol;td>&NewLine;<&sol;tr>&NewLine;<&sol;tbody>&NewLine;<&sol;table>&NewLine;<h3>三步控制<&sol;h3>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1453" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-5&period;png" alt&equals;"" width&equals;"421" height&equals;"349" &sol;><&sol;p>&NewLine;<p>图1&period; FB43 &OpenCurlyDoubleQuote;PULSEGEN” 三步控制图<&sol;p>&NewLine;<p>表2&period; FB43 &OpenCurlyDoubleQuote;PULSEGEN” 三步控制表<&sol;p>&NewLine;<table border&equals;"1" width&equals;"100&percnt;">&NewLine;<tbody>&NewLine;<tr>&NewLine;<th scope&equals;"col" width&equals;"25&percnt;">自动模式<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"25&percnt;">INV<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"25&percnt;">QPOS&lowbar;P<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"25&percnt;">QNEG&lowbar;P<&sol;th>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th rowspan&equals;"3" scope&equals;"row">MAN&lowbar;ON&equals;0<&sol;th>&NewLine;<td>-100&percnt;&lt&semi;INV&lt&semi;0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<td>0&lt&semi;INV&lt&semi;100&percnt;<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<&sol;tbody>&NewLine;<&sol;table>&NewLine;<table border&equals;"1" width&equals;"100&percnt;">&NewLine;<tbody>&NewLine;<tr>&NewLine;<th scope&equals;"col" width&equals;"20&percnt;">手动模式<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"20&percnt;">POS&lowbar;P&lowbar;ON<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"20&percnt;">NEG&lowbar;P&lowbar;ON<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"20&percnt;">QPOS&lowbar;P<&sol;th>&NewLine;<th scope&equals;"col" width&equals;"20&percnt;">QNEG&lowbar;P<&sol;th>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th rowspan&equals;"4" scope&equals;"row">MAN&lowbar;ON&equals;0<&sol;th>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<td>1<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<td>1<&sol;td>&NewLine;<td>1<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<td>0<&sol;td>&NewLine;<&sol;tr>&NewLine;<&sol;tbody>&NewLine;<&sol;table>&NewLine;<h3>RATIOFAC<&sol;h3>&NewLine;<p>RATIOFAC在三步控制中可以改变正脉冲持续时间与负脉冲持续时间的比率,校正由于加热和制冷的机制不同而导致的差异。<&sol;p>&NewLine;<p><strong>RATIOFAC &lt&semi; 1<&sol;strong><&sol;p>&NewLine;<p>正脉冲持续时间 &equals; &lpar; INV &sol; 100 &rpar; &ast; PER&lowbar;TM<&sol;p>&NewLine;<p><strong>负脉冲持续时间 &equals; &lpar; INV &sol; 100 &rpar; &ast; PER&lowbar;TM &ast; RATIOFAC<&sol;strong><&sol;p>&NewLine;<p>如下图2&period;所示:<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1454" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-6&period;png" alt&equals;"" width&equals;"838" height&equals;"434" &sol;><&sol;p>&NewLine;<p>图2&period;RATIOFAC从 1 到 0&period;5;负脉冲波形变化图<&sol;p>&NewLine;<p><strong>RATIOFAC &gt&semi; 1<&sol;strong><&sol;p>&NewLine;<p><strong>正脉冲持续时间 &equals; &lpar; INV &sol; 100 &rpar; &ast; &lpar; PER&lowbar;TM &sol; RATIOFAC &rpar;<&sol;strong><&sol;p>&NewLine;<p>负脉冲持续时间 &equals; &lpar; INV &sol; 100 &rpar; &ast; PER&lowbar;TM<&sol;p>&NewLine;<p>如下图3&period;所示:<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1455" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-7&period;png" alt&equals;"" width&equals;"919" height&equals;"476" &sol;><&sol;p>&NewLine;<p>图3&period;RATIOFAC从 1 到 2;正脉冲波形变化图<&sol;p>&NewLine;<h3>两步控制<&sol;h3>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1456" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-8&period;png" alt&equals;"" width&equals;"415" height&equals;"197" &sol;><&sol;p>&NewLine;<p>图4&period; 双极调节<&sol;p>&NewLine;<p>如下图5&period; 图6&period; 图7&period;所示:<&sol;p>&NewLine;<p><strong>黑色:正脉冲;红色:负脉冲<&sol;strong><&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1457" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-9&period;png" alt&equals;"" width&equals;"347" height&equals;"232" &sol;><&sol;p>&NewLine;<p>图5&period; INV&equals;0时,正负脉冲时序图<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1458" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-10&period;png" alt&equals;"" width&equals;"676" height&equals;"361" &sol;><&sol;p>&NewLine;<p>图6&period; INV&equals;50时,正负脉冲时序图<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1459" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-11&period;png" alt&equals;"" width&equals;"676" height&equals;"359" &sol;><&sol;p>&NewLine;<p>图7&period; INV&equals; - 50时,正负脉冲时序图<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1460" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-12&period;png" alt&equals;"" width&equals;"682" height&equals;"361" &sol;><&sol;p>&NewLine;<p>图8&period; 单极调节<&sol;p>&NewLine;<p>如下图9&period; 图10&period;所示:<&sol;p>&NewLine;<p><strong>黑色:正脉冲;红色:负脉冲<&sol;strong><&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1461" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-13&period;png" alt&equals;"" width&equals;"838" height&equals;"444" &sol;><&sol;p>&NewLine;<p>图9&period; INV&equals; - 20时,正负脉冲时序图 (INV&lt&semi;0&comma;正脉冲一直为0,负脉冲一直为1)<&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1462" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-14&period;png" alt&equals;"" width&equals;"843" height&equals;"445" &sol;><&sol;p>&NewLine;<p>图10&period; INV&equals;50时,正负脉冲时序图<&sol;p>&NewLine;<h2>常问问题<&sol;h2>&NewLine;<p><strong>如果INV对应的脉宽与当前的分辨率不符,实际脉冲数是多少?<&sol;strong><&sol;p>&NewLine;<p>假设:CONT&lowbar;C&period;CYCLE&equals;10S&comma;PULSEGEN&period;CYCLE&equals;1S&comma;分辨率为10&percnt;<&sol;p>&NewLine;<table border&equals;"1" width&equals;"100&percnt;">&NewLine;<tbody>&NewLine;<tr>&NewLine;<th scope&equals;"col">INV&lpar;&percnt;&rpar;<&sol;th>&NewLine;<th scope&equals;"col">脉冲个数<&sol;th>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">34<&sol;th>&NewLine;<td>3<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">35<&sol;th>&NewLine;<td align&equals;"right"><span class&equals;"STYLE1">4<&sol;span><&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">36<&sol;th>&NewLine;<td>4<&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">45<&sol;th>&NewLine;<td><span class&equals;"STYLE1">4<&sol;span><&sol;td>&NewLine;<&sol;tr>&NewLine;<tr>&NewLine;<th scope&equals;"row">46<&sol;th>&NewLine;<td>5<&sol;td>&NewLine;<&sol;tr>&NewLine;<&sol;tbody>&NewLine;<&sol;table>&NewLine;<p><strong>由上表红色数字可看到,采用 &OpenCurlyDoubleQuote;四舍六入,五靠双 &lpar;靠经最接近的双数&rpar;”的方式计算<&sol;strong><&sol;p>&NewLine;<p><strong>P&lowbar;B&lowbar;TM的作用?<&sol;strong><&sol;p>&NewLine;<p><img class&equals;"aligncenter size-full wp-image-1463" src&equals;"https&colon;&sol;&sol;www&period;xuezdh&period;com&sol;wp-content&sol;uploads&sol;2021&sol;01&sol;FB43-15&period;png" alt&equals;"" width&equals;"844" height&equals;"391" &sol;><&sol;p>&NewLine;

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