H134-E1-01A E5_N UsersManual (986777), страница 19
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Becareful not to forget it. If you forget the password, contact yourOMRON sales representative.CommunicationsOperation Commandto Move to the ProtectLevel• The Write Variable operation command can be used via communicationsto write the password to the “move to protect level” parameter. When thecorrect password is written, the display will change to the “operation/adjustment protect” parameter and writing the parameters in the protectlevel will be enabled.Note(1) If the Write Variable operation command is used to write the wrong password to the “move to protect level” parameter after the correct parameterhas been written, the “move to protect level” parameter will be displayedand any Write Variable operation commands to write parameters in theprotect level will result in operation errors.(2) If a password is not set or if it is set to 0, the display will change to the“operation/adjustment protect” parameter and writing the parameters inthe protect level will be enabled immediately.88Section 4-10PV Change Color4-10 PV Change Color4-10-1 PV Color Change FunctionUse the PV color change function to change the color of the PV display (No.
1display).There are three display colors, orange, red, and green, and you can selectfrom the following three modes and eight functions.colr• Constant: This mode displays orange, red, or green all the time.PV changecolor• Linked to Alarm 1: This mode switches the PV display color from red togreen when alarm 1 turns ON or from green to red when alarm 1 turnsON.• Linked to PV stable band: This mode switches the PV display colorbetween red outside the PV stable band and green within PV stable band,or between green outside the PV stable band and red within PV stableband.Set the PV stable band in the “PV stable band” parameter (advancedfunction setting level).• The default is red (red).The following tables shows the display functions that can be set using the PVcolor change function.ModeConstantSettingFunctionPV change colororgOrangeConstant: OrangeredRedConstant: RedgrnGreenConstant: GreenLinked toalarm 1Application exampleTo match the display colorwith other Controller modelsTo match the display colorwith other Controller modelsTo match the display colorwith other Controller modelsAlarmvalueALM1 litPVSPALM1 not litALM1 litApplication exampler-gRed to GreenRedGreenTo display the PV reached signalg-rGreen to RedGreenRedTo display error signalsLinked toPV stablebandPVstablebandLowPVstablebandWithinHighPVSPLowWithin PV stable HighbandApplication exampler-g.rRed to Green to RedRedGreenRedTo display stable statusg-o.rGreen toOrange to RedGreenOrangeRedTo display stable statuso-g.rOrange toGreen to RedOrangeGreenRedTo display stable status89PV Change ColorSection 4-10PV Stable BandWhen the mode to link to the PV stable band is selected, the PV display colorwill change according to whether the present value (PV) is lower than, within,or higher than the PV stable band shown in the following figure.
The PV stableband is set with the SP as the center, as shown below.pv-bPV stablebandPV stable PV stablebandbandLowWithinHighPVSPThe default is 5.0 (°C/°F) for Controllers with Thermocouple/Resistance Thermometer Multi-Inputs and 5.0% FS for Controllers with Analog Inputs.4-10-2 SettingSetting the PVChange Color toIndicate Stable StatusTo display the PV in a stable green display when the PV is within ±15.0°C ofthe set point to enable checking the control process at a glance, set the “PVchange color” and “PV stable band” parameters.PV change color = r-gr (Red to Green to Red)PV stable band = 15.0°COperating ProcedureRelease the protection before setting the “PV change color” and “PV stableband” parameters to enable moving to advanced function setting level. (Referto steps 1 to 8 on page 84.)Operation LevelC25PV/SP100Initial Setting Levelin-tInput type1.
Press the O key for at least three seconds to move from the operationlevel to the initial setting level.5Initial Setting LevelMove to ad-functionamov vancedsetting level2. Select the “move to advanced function setting level” parameter by pressing the M key.3. Use the D key to enter “−169” (the password).-169Advanced Function Setting LevelParameterinit initializationMove to the advanced function setting level by pressing the M key orleaving the setting for at least two seconds.offAdvanced Function Setting LevelPV changecolr colorred904.
Select the “PV change color” parameter by pressing the M key.Section 4-10PV Change Color5. Press the U key to set the parameter to r-gr.colrr-g.rAdvanced Function Setting LevelCpv-b6. Select the “PV stable band” parameter by pressing the M key.PV stable band5.0C7. Use the U key to set the parameter to 15.0.pv-b15.08. To return to the initial setting level, press the O key for at least one second.9. To return to the operation level, press the O key for at least one second.Operation LevelC25PV/SP10091Section 4-11Alarm Delays4-11 Alarm Delays4-11-1 Alarm Delays• Delays can be set for the alarm outputs. ON and OFF delays can be setseparately for alarms 1, 2, and 3.
The ON and OFF delays for alarm 1function only for the alarm function. If the alarm output 1 is set to be output as an OR with other alarm functions (i.e., the heater burnout alarm,HS alarm, or input error output alarm), the delays will not function for theother alarms. The ON and OFF delays for alarms 1, 2, and 3 also apply tothe individual ALM1, ALM2, and ALM3 indicators and to communicationsstatus.
The alarm ON delays will also function when power is turned ONor when moving from initial setting level to operation level (i.e., to softwareresets). All outputs will turn OFF and the OFF delays will not functionwhen moving to the initial setting level or when an alarm is output for aheater burnout error.Operation of Alarm ON and OFF Delays (for an Upper-limit Alarm)PVAlarm hysteresisAlarm settingON delayset timeOFF delayset timeAlarm statusON delay set timeAlarm Latch = OFFAlarm will not turn ON.• The alarm will not turn ON if the time that the alarm is ON is equal to orless than the ON delay set time.
Also, the alarm will not turn OFF if thetime that the alarm is OFF is equal to or less than the OFF delay set time.• If an alarm turns OFF and then back ON during the ON delay time, thetime will be remeasured from the last time the alarm turns ON. Also, if analarm turns ON and then back OFF during the OFF delay time, the timewill be remeasured from the last time the alarm turns OFF.Parameters Related to Alarm DelaysParameter name92SymbolSet (monitor) valuesAlarm 1 ON delayAlarm 2 ON delaya1ona2on0 to 999 (s)0 to 999 (s)Alarm 3 ON delayAlarm 1 OFF delaya3ona1of0 to 999 (s)0 to 999 (s)Alarm 2 OFF delayAlarm 3 OFF delaya2ofa3of0 to 999 (s)0 to 999 (s)Section 4-11Alarm DelaysNote(1) The defaults are 0, i.e., the ON and OFF delays are disabled.(2) The parameters are displayed when alarm outputs are assigned andwhen the alarm type is set to any type but 0 (none).Operating ProcedureUse the following procedure to set ON and OFF delays for the alarm 1 output.An ON delay of 5 seconds and an OFF delay of 10 s will be set.Operation LevelC25PV/SP100Initial Setting Levelin-tInput type1.
Press the O key for at least three seconds to move from the operationlevel to the initial setting level.5Initial Setting LevelMove to ad-functionamov vancedsetting level2. Select the “move to advanced function setting level” parameter by pressing the M key.0Advanced Function Setting LevelParameterinit initialization3. Press the D key to enter the password (−169) and move from the initialsetting level to the advanced function setting level.offAdvanced Function Setting Level4.
Press the M key to select the “alarm 1 ON delay” parameter.Alarm 1 ONa1on delay05. Press the U key to set the parameter to 5.a1on5Advanced Function Setting Level6. Press the M key to select the “alarm 1 OFF delay” parameter.Alarm 1 OFFa1of delay07. Press the U key to set the parameter to 10.a1of10Input type8. Press the O key for at least one second to move from the advanced function setting level to the initial setting level.PV/SP9. Press the O key for at least one second to move from the initial settinglevel to the operation level.Initial Setting Levelin-t5Operation LevelC2510093Section 4-12Loop Break Alarm4-12 Loop Break Alarm4-12-1 Loop Break Alarm (LBA)• With a loop break alarm, there is assumed to be an error in the controlloop if the control deviation (SP − PV) is greater than the threshold set inthe “LBA level” parameter and if the control deviation is not reduced by atleast the value set in the “LBA detection band” parameter within the LBAdetection time.• Loop break alarms are detected at the following times.LBA levelSet pointLBA bandLBA bandLBA levelLBA bandLBA detection time(1)Area where LBAis not detected(2)(3)LBA OFFLBA detectiontime(4)LBA detectionLBA detection timetime(5)(6)(7)LBA ONLBA OFFLBA ONIf the control deviation is reduced in the area between 1 and 2 (i.e., the setpoint is approached) and the amount the control deviation is reduced is atleast equal to the LBA band, the loop break alarm will remain OFF.The process value is within the LBA level between 3 and 4, and thus loopbreak alarms will not be detected.
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