User manual OMRON E5 GETTING STARTED

[. . . ] H08E-EN-01 E5CN E5AN E5EN E5GN ZX-T Series Digital Temperature Controllers Getting Started Manual E5CN/E5AN/E5EN/E5GN Digital Temperature Controllers Getting Started Manual Basic Type Revised August 2010 This manual needs the H04E+E5CN(-U) and H03E+E5EN/AN datasheet for selection and installation. (This manual is a selection from the full manual H156) iv Preface The E5CN, E5CN-U, E5AN, E5EN, and E5GN are Digital Temperature Controllers. The E5CN and E5CN-U are both compact temperature controllers, with the E5CN featuring screw terminal connections, and the E5CN-U featuring socket pin connections. The E5GN can be connected using screw terminals or screwless clamp terminals. [. . . ] Press the O Key for at least three seconds to move from the operation level to the initial setting level. 25 100 PV Initial Setting Level 2. The Input Type parameter is displayed in the initial setting level. in-t 5 Input Type cntl onof PID ON/OFF 3. To return to the operation level, press the O Key for at least one second. Next, set the set point value. Setting the SP Operating Procedure Operation Level C In this example, the set point is set to 200. Select the Process Value/Set Point parameter in the operation level. 25 100 PV/SP C 25 200 2. (In this example, it is set to 200. ) The new set value can be saved by pressing the M Key, or it will go into effect after two seconds have elapsed. Next, set the hysteresis. 41 Determining PID Constants (AT, ST, Manual Setup) Setting the Hysteresis Operating Procedure Operation Level C Section 3-8 Set the hysteresis to 2. 0°C. Press the O Key to move from the operation level to the adjustment level. 25 200 PV Adjustment Level 1. adj C Adjustment Level Display 2. The Adjustment Level Display parameter will be displayed in the adjustment level. hys 1. 0 Hysteresis (Heating) 3. Select the Hysteresis (Heating) parameter by pressing the M Key. C hys 2. 0 4. Either press the M Key or wait for at least two seconds after setting the hysteresis value to confirm the setting. To return to the operation level, press the O Key. 3-8 3-8-1 Determining PID Constants (AT, ST, Manual Setup) AT (Auto-tuning) at · When AT is executed, the optimum PID constants for the set point at that time are set automatically. A method (called the limit cycle method) for forcibly changing the manipulated variable and finding the characteristics of the control object is employed. · Either 40% AT or 100% AT can be selected depending on the width of MV variation in the limit cycle. In the AT Execute/Cancel parameter, specify at-2 (100% AT) or at-1 (40% AT). · Only 100% AT can be executed for heating and cooling control. · AT cannot be executed when control has stopped or during ON/OFF control. · The results of AT are reflected in the Proportional Band (P), Integral Time (I), and Derivative Time (D) parameters in the adjustment level. Adjustment Level C (0 p i d Proportional Band Integral Time 233 Derivative Time 40 42 Determining PID Constants (AT, ST, Manual Setup) AT Operations Section 3-8 AT is started when either at-2 (100% AT) or at-1 (40% AT) is specified for the AT Execute/Cancel parameter. 1 display stops flashing. AT Execute/Cancel at off at-2 at No. 1 display 100% AT execution in progress If you move to the operation level during AT execution, the No. 2 display flashes to indicate that AT is being executed. PV/SP C 25 100 C 25 100 No. 2 display AT execution in progress Only the Communications Writing, RUN/STOP, AT Execution/Cancel, and Program Start parameters can be changed during AT execution. [. . . ] This function can be used to prevent setting incorrect process values. The set point limiter is used to prevent the control target from reaching abnormal temperatures. If the set point is not within the range set for the set point limiter as the result of changes to the Set Point Upper Limit or Set Point Lower Limit parameter, the set point will automatically be change to a value within the set 79 Setting the SP Upper and Lower Limit Values Section 4-6 range. The upper- and lower-limit values of the set point limiter are set using the Set Point Upper Limit and Set Point Lower Limit parameters in the initial setting level. [. . . ]