H134-E1-01A E5_N UsersManual (986777), страница 17
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Once “STOP” (RUN/STOP), “MANU” (auto/manual),or “PRST” (program start) has been assigned to one event input, the other event can be assigned only to either of the remaining two settings.(2) “PRST” (program start) can be set only when the “program pattern” parameter has not be set to OFF.If the “program pattern” parameter is set to OFF (i.e., if the simple program mode is not selected) when “PRST” (program start) is set, the assignment of the input will automatically be changed to “NONE.”E5CNE5AN/EN−EV1EV1 EV2 +EV2+EV1 +EV2 +EV1EV2−When you are setting two externally input set points, set in the “number ofmulti-SP uses” parameter.• Switching is possible between two set points (0 and 1) by setting the“number of multi-SP uses” parameter to 1.The default setting is 1 and does not need to be changed to switchbetween two set points.Set point 0 or 1 is specified by the ON/OFF state of event input 1.77Section 4-5Using Event Inputs4-5-2How to Use the Multi-SP FunctionThe multi-SP function allows you to set up to four set points (SP 0 to 3) in theadjustment level.
The set point can be switched by operating the keys on thefront panel or by using external input signals (event inputs).Using Event InputsEvent inputs can be used if the Controller supports the event input functionand if the “number of multi-SP uses” parameter is set to 1 or 2.■ Number of Multi-SP Uses = 1Event input 1OFFONSelected set pointSet point 0Set point 1■ Number of Multi-SP Uses = 2Event input 1OFFOFFEvent input 2Selected set pointSet point 0ONOFFOFFONSet point 1Set point 2ONONSet point 3NoteEvent inputs can be used on E5@N-@@@B@ Controllers.
Turn the eventinputs ON or OFF while the E5AN is turned ON. Event input ON/OFF changesare detected for inputs of 50 ms or longer.Using Key OperationsYou can select any of the set points 0 to 3 by changing the set value of the“multi-SP uses” parameter. The “multi-SP uses” display conditions are as follows:• If the Controller does not support event inputs, the “multi-SP uses” parameter must be set to ON.• If the Controller supports event inputs, the “number of multi-SP uses”parameter must be set to 0 and the “multi-SP uses” parameter must beset to ON.The following table shows the relationship between the “multi-SP uses”parameter set value and the selected set point.Multi-SPNote78Selected set point01Set point 0Set point 123Set point 2Set point 3The set point can also be switched using communications.Section 4-5Using Event Inputs4-5-3SettingsSwitching between Set Points 0, 1, 2, and 3Operating ProcedureOperation LevelC25PV/SPThe following example sets the “number of multi-SP uses” parameter to 2.1.
Press the O key for at least three seconds to move from the operationlevel to the initial setting level.100Initial Setting Levelin-tInput type2. Select the “move to advanced function setting level” parameter by pressing the M key.53. Use the D key to enter “−169” (the password).amov-169Advanced Function Setting LevelParameterinit initializationMove to the advanced function setting level by pressing the M key orleaving the setting for at least two seconds.offNumber of Multi-SP Uses Settingev-m4. Select the “number of multi-SP uses” parameter by pressing the M key.Number ofmulti-SP uses1ev-m25. Use the U key to set the parameter to 2.6.
To return to the initial setting level, press the O key for at least one second.7. To return to the operation level, press the O key for at least one second.Set points 0, 1, 2 and 3 will be set according to the ON/OFF states of eventinputs 1 and 2.E5CNE5AN/EN−EV1 EV2 ++4-5-4EV1EV2EV1 +EV1EV2 +EV2−Executing Run/Stop ControlWhen the “event input assignment 1” or “event input assignment 2” parameteris set to STO (RUN/STOP), control is started when event input 1 or 2 turnsOFF. Control is stopped when the input turns ON. Alarm outputs, however, willbe according to the process value.The STOP indicator will light while control is stopped.SettingEvent input 1 or 2Event input 1 or 2Input contactONOFFStatusSTOPRUN79Section 4-5Using Event Inputs4-5-5Switching between Auto and Manual ControlWhen the “event input assignment 1” or “event input assignment 2” parameteris set to MANU (auto/manual), manual control will start when event input 1 or2 turns ON.
Auto control will start when the input turns OFF.The MANU indicator will light during manual control.4-5-6SettingEvent input 1 or 2Input contactOFFStatusAutomaticEvent input 1 or 2ONManualControlling the Start of the Simple Program FunctionWhen the “event input assignment 1” or “event input assignment 2” parameteris set to PRST (program start), the program will start when event input 1 or 2turns ON. The program will be reset when the input turns OFF and the RUN/STOP status will automatically switch to STOP mode. If the program END output is ON, the program END output will turn OFF.NoteSettingEvent input 1 or 2Input contactOFFResetStatusEvent input 1 or 2ONStartThe specified event input function can be used when the “number of multi-SPuses” parameter is set to 0 or 1 (i.e., when it is not set for the set point setting).Event input assignments 1 and 2 are as follows according to the setting of the“number of multi-SP uses” parameter:ParameterNumber ofmulti-SPuses012SettingEvent inputsFunction of eventFunction of eventinput 1input 2Event inputassignment 1Event inputassignment 2Event input assignment(See note.)Event input assignment(See note.)Specified event inputfunctionSpecified event inputfunctionNONEEvent input assignmentNoneSpecified event inputfunctionEvent input assignmentNONENoneNONENONESpecified event inputfunctionNoneNone--- (Setting data not dis- Event input assignmentplayed.)Multi-SP, 2 pointsSpecified event input(switching set points 0functionand 1)--- (Setting data not dis- NONEMulti-SP, 2 pointsNoneplayed.)(switching set points 0and 1)--- (Setting data not dis- --- (Setting data not dis- Multi-SP, 4 points (switching set points 0, 1, 2, 3)played.)played.)NoteOne of the settings.ParametersSymbolev-1ev-2ev-m80Parameter: LevelDescriptionEvent input assignment 1: Advanced function setting Function oflevelevent input funcEvent input assignment 2: Advanced function setting tionlevelNumber of multi-SP uses: Advanced function settinglevelSection 4-6Setting the SP Upper and Lower Limit Values4-64-6-1Setting the SP Upper and Lower Limit ValuesSet Point LimiterThe setting range of the set point is limited by the set point limiter.
The setpoint limiter is used to prevent the control target from reaching abnormal temperatures. The upper- and lower-limit values of the set point limiter are setusing the “set point upper limit” and “set point lower limit” parameters in theinitial setting level. When the set point limiter is reset, the set point is forciblychanged to the upper- or lower-limit value of the set point limiter if the set pointis out of the limiter range.
Also, when the input type and temperature unit arechanged, the set point limiter is forcibly reset to the sensor setting range.Sensor rangeSet point limiterSetting rangeSet pointAB(Cannot be set.)Upper-limitvalue changedUpper-limit value changedSet pointCInput type changedSet pointSet value Upper-/lower-limit valuesSensor upper-/lower-limit valuesB(Can be set.)ParametersSymbolsl-hsl-l4-6-2Parameter: LevelSet point upper limit: Initial setting levelSet point lower limit: Initial setting levelDescriptionTo limit the SP settingTo limit the SP settingSettingSet the set point upper and lower limits in the “set point upper limit” and “setpoint lower limit” parameters in the initial setting level. In this example, it isassumed that the input type is set to a K thermocouple with a temperaturerange of −200 to 1300°C.−2001300Sensor rangeSet point limiter−1001000Setting the Set Point Upper-limit ValueOperating Procedurein-tInput typeSet Point Upper Limit = 10001.
Press the O key for at least three seconds to move from the operationlevel to the initial setting level.581Section 4-7Using the SP Ramp Function to Limit the SP Change RateCsl-hSet point upperlimit2. Select the “set point upper limit” parameter.1300C3. Use the U and D keys to set the parameter to 1000.sl-h1000Setting the Set Point Lower-limit ValueOperating ProcedureCsl-lSet point lowerlimitSet Point Lower Limit = −1001. Select the “set point lower limit” parameter in the initial setting level.-200Csl-l2. Use the U and D keys to set the parameter to −100.-1004-74-7-1Using the SP Ramp Function to Limit the SP Change RateSP RampThe SP ramp function is used to restrict the width of changes in the set pointas a rate of change.
When the SP ramp function is enabled and the changewidth exceeds the specified rate of change, an area where the set point isrestricted will be created, as shown in the following diagram.During the SP ramp, control will be performed not for the specified set pointbut rather for the set point restricted by the rate of change set for the SP rampfunction.SPSP after changeSP rampSP rampset valueSP ramp time unit (s/min)SP before changeTimePoint of changeThe rate of change during SP ramp is specified using the “SP ramp set value”and “SP ramp time unit” parameters.
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