H134-E1-01A E5_N UsersManual (986777), страница 16
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It is, however, restarted later by the “standby sequence reset” parameter(advanced function setting level). For details, refer to the “standbysequence reset” parameter in SECTION 5 Parameters.Alarm Latch• The alarm latch can be used to keep the alarm output ON regardless ofthe temperature once the alarm output has turned ON. The alarm outputwill turn OFF when the power is turned OFF.• (The alarm output can also be turned OFF by switching to the initial setting level, communications setting level, advanced function setting level,or calibration level.)71Section 4-2Alarm Hysteresis4-2-3Close in Alarm/Open in Alarm• When “close in alarm” is set, the status of the alarm output function will beoutput as is.
When “open in alarm” is set, the status of the alarm outputfunction will be reversed before being output.• Close in alarm/open in alarm can be set separately for each alarm.• Close in alarm/open in alarm is set in the “alarm 1 open in alarm” to“alarm 3 open in alarm” parameters (advanced function setting level).• The default is n-o (close in alarm).• When “alarm 1 open in alarm” (advanced function setting level) is set to“open in alarm,” the heater burnout alarm and input error output are alsoset to “open in alarm.”SettingAlarm output functionClose in alarm ONOpen in alarmAlarm output Alarm indicatorONLitOFFONOFFOFFNot litLitOFFONNot lit• The alarm outputs will turn OFF (i.e., the relay contacts will open) whenpower is interrupted and for about two seconds after the power is turnedON regardless of the close in alarm/open in alarm setting.Summary of AlarmOperationThe following figure summarizes the operation of alarms when the alarm typeis set to “lower-limit alarm with standby sequence” and “close in alarm” is set.Alarm type: Lower-limit alarm with standby sequencePVAlarm valueAlarm hysteresisTimeStandby sequencecanceledAlarmONOFFON (closed)OutputOFF (open)ParametersSymbolalh*restal*nNote72* = 1 to 3Parameter: LevelAlarm 1 to 3 hysteresis: Advanced function settinglevelStandby sequence: Advanced function setting levelAlarm 1 to 3 open in alarm: Advanced function settinglevelDescriptionAlarmAlarmAlarmSection 4-3Setting Scaling Upper and Lower Limits for Analog Inputs4-3Setting Scaling Upper and Lower Limits for Analog Inputs4-3-1Analog Inputin-hScaling upper limitin-lScaling lower limitdpDecimal point• When an analog input is selected, scaling can be performed as neededby the control application.• Scaling is set in the “scaling upper limit,” “scaling lower limit,” and “decimalpoint” parameters (initial setting level).
These parameters cannot be usedwhen a temperature input is selected.• The “scaling upper limit” parameter sets the physical quantity to beexpressed by the upper limit value of input, and the “scaling lower limit”parameter sets the physical quantity to be expressed by the lower-limitvalue of input. The “decimal point” parameter specifies the number of digits below the decimal point.• The following figure shows a scaling example for a 4 to 20 mV input.After scaling, the humidity can be directly read.
Here, one place below thedecimal point is set.Display(humidity)Upper limit (95.0%)Lower limit (10.0%)Input (mA)420Operating ProcedureInput type1. Press the O key for three seconds to move from the operation level tothe initial setting level.Scaling upper2. Select “scaling upper limit” by pressing the M key.Initial Setting Levelin-tIn this example scaling is set to display 4 to 20 mA as 10.0% to 95.0%.0in-h limit1003.
Use the U and D keys to set the parameter to 950.in-h950in-lScaling lowerlimit4. Select the “scaling lower limit” parameter by pressing the M key.05. Press the U and D keys to set 100.in-l100dpDecimal point6. Select the “decimal point” parameter by pressing the M key.073Section 4-4Executing Heating/Cooling Control7. Press the U and D keys to set 1.dp18. To return to the operation level, press the O key for one second.4-44-4-1Executing Heating/Cooling ControlHeating/Cooling ControlHeating/cooling control can be used on the E5@N-@2@@@, E5@N-@3@@@,or E5@N-@Q@@@.
Heating/cooling control operates when h-c (heating/cooling) is selected for the “standard or heating/cooling” parameter.The following functions are assigned to outputs in the initial status.Parameter nameSymbolInitial statusControl output 1 assignmentControl output 2 assignmentout1out2Control output for heatingNot assigned.Alarm 1 assignmentAlarm 2 assignmentalm1alm2Alarm 1Alarm 2Alarm 3 assignment (E5AN/ENonly)alm3Alarm 3Each output is automatically initialized as shown below when the controlmode is changed.Example: E5CNParameter nameSymbolWithout control output 2With control output 2StandardControl output forheatingHeating/coolingControl output forheatingStandardControl output forheatingHeating/coolingControl output forheatingout2Not assigned.
(Seenote 1.)Not assigned. (Seenote 1.)Not assigned.Control output forcoolingAlarm 1 assignmentalm1Alarm 1 (See note2.)Alarm 1 (See note2.)Alarm 1 (See note2.)Alarm 1 (See note2.)Alarm 2 assignmentalm2Alarm 2 (See note3.)Control output forcooling (See note3.)Alarm 2Alarm 2Control output 1assignmentout1Control output 2assignmentNote(1) No parameter assignment is displayed because there is no control output2.(2) Alarm 1 becomes the program END output unless the program pattern isOFF.(3) For the E5AN/EN, alarm 3 is assigned for control output (cooling) (alarmoutput 2 is assigned for alarm 2).• The heating/cooling operation of the control outputs will switch when the“direct/reverse operation” parameter is set to “direct.”• When heating/cooling control is selected, the “dead band” and “coolingcoefficient” parameters can be used.In this manual, assigned control outputs and alarm outputs are indicated asfollows: “Control output 1 must be assigned” or “Alarm 1 must be assigned.”74Section 4-4Executing Heating/Cooling ControlDead Band• For heating/cooling control, the dead band is set with the set point as itscenter.
The dead band width is the set value of the “dead band” parameter (adjustment level). Setting a negative value produces an overlappingband.• If an overlapping band is set, the bumpless function may not operatewhen switching between manual operation and automatic operation.• The default is 0.0 EU for Controllers with Thermocouple/Resistance Thermometer Multi-Inputs and 0.00% FS for Controllers with Analog Inputs.Dead band: Dead bandwidth = A positive valueOutputHeatingsideCoolingsideHeatingsidePV0Set pointCooling CoefficientOverlapping dead band: Deadband width = A negative valueOutputCoolingsidePV0Set pointIf the heating characteristics and cooling characteristics of the control objectare very different and good control characteristics cannot be achieved with thesame PID constants, the cooling coefficient can be used to adjust the proportional band (P) for the control output assigned to the cooling side.
Use this toachieve balanced control between the heating side and cooling side. The proportional bands (P) for the control outputs assigned to the heating/coolingsides can be calculated using the following equations.P for control output assigned to heating side = PP for control output assigned to cooling side = P for control output assigned toheating side × cooling coefficientThe cooling coefficient is multiplied by the P for the control output assigned tothe heating side to obtain control with characteristics that differ from those ofthe control output assigned to the heating side.OutputP for control outputassigned to heating side0OutputP for control outputassigned to heatP for control outputing side × 1.0assigned to heating side × 1.0P for control outputP for control outputP for control outputassigned to heating sideassigned to cooling sideassigned to cooling sidePVPV0Set pointP for control output assigned toheating side × 0.8P for control output assigned toheating side × 1.575Executing Heating/Cooling Control4-4-2Section 4-4SettingsTo set heating/cooling control, set the “standard or heating/cooling,” “deadband,” and “cooling coefficient” parameters.Setting Heating/Cooling ControlOperating ProcedureInitial Setting LevelStandard ors-hc heating/coolingStandard or heating/cooling = Heating/cooling1.
Press the O key for at least three seconds to move from the operationlevel to the initial setting level.stnd2. Select “heating/cooling control” in the initial setting level.stnd: Standard controlh-c: Heating/cooling controlSetting the Cooling CoefficientOperating ProcedureAdjustment Levelc-scCooling Coefficient = 101. Select the “cooling coefficient” in the adjustment level.Coolingcoefficient1.002. Use the U key to set the parameter to 10.00.c-sc10.00Setting the Dead BandOperating ProcedureAdjustment LevelCc-dbDead Band = 51.
Select the “dead band” parameter in the adjustment level.Dead band0.0Cc-db5.0762. Use the U key to set the parameter to 5.0.Section 4-5Using Event Inputs4-5Using Event Inputs4-5-1Event Input Settings• Event inputs can be used for the multi-SP function, starting/stopping operation (RUN/STOP), switching between auto/manual, and program starts.• Of these, the multi-SP function, event inputs are used only for the number(0 to 2) set in the “number of multi-SP uses” parameter (advanced function level).• Event inputs (1 and 2) that are not used for the multi-SP function areassigned using the “event input assignment 1” and “event input assignment 2” parameters (advanced function level).• Event inputs can be used on E5@N-@@@B@ Controllers.ParameterSettingEvent inputassignment 1Number ofmulti-SPusesEvent inputassignment 20 (See note NONE, STOP, MANU, PRST (See note 2.)1.)1(Not displayed.)2(Not displayed.)NoteEvent inputsFunction of eventFunction of eventinput 1input 2None, or switching RUN/STOP, switchingauto/manual, or starting/resetting programNONE, STOP, MANU, Multi-SP, 2 pointsNone, or switchingPRST (See note 2.)(switching set points 0 RUN/STOP, auto/and 1)manual, or programstartsMulti-SP, 4 points (switching set points 0, 1, 2,3)(1) If the “number of multi-SP uses” is set to 0, and both input assignments1 and 2 can be set.
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