a/d/s/ iSeries manual Start Auto Tune PID, Proportional Band Submenu

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START AUTO TUNE PID:

Press d 27) Display flashes ENBL or DSBL.

Press b 28) Scroll through the available selections: “Enable” or “Disable”. Press d 29) Display shows STRD stored message momentarily and then advances to CYCL only, if it was changed, otherwise press a to

advance to CYCL Cycle Time Submenu.

If “Enabled”, the controller is ready to calculate P, PI or PID parameters. The instrument performs this by activating the output and observing the delay and rate at which the Process Value changes. The setpoints must be at least 18°F or 10°C above the (PV) Process Value in order to perform Auto Tune, otherwise an error message will be displayed.

To start Auto Tune PlD select PID, enable Auto PID and enable Start PID. Sometimes Auto PID parameter needs fine tuning i.e. for each 5°F over shoot increase the Proportional Band (PB) by 15% and for each ±1°F fluctuation at the Setpoint (SP) increase reset by 20%.

Once started, display shows A.TUN with letters blinking in the rotating pattern. When auto tune stops, display will show process value. Do not perform any operations or settings before first stopping Auto Tune. Any alarms or other output is disabled during Auto Tune.

If “AUTO PID” was “DISABLED”, the display will show the following three submenus. This allows the user to manually enter values for Proportional, Reset and Rate terms corresponding to P, I, and D. It also can be used for Auto PID for disabling unwanted parameter i.e. PI enter 0000 for Rate.

PROPORTIONAL BAND SUBMENU:

Press d 30) Display flashes 1st digit of the previous P PRoP Proportional band value.

Press b & c 31) Press b and c buttons to enter a new “Proportional Band” value.

Press d 32) Display shows STRD stored message momentarily and then advances to REST only, if it was changed, otherwise press a to advance to REST Reset Setup Submenu.

Proportional Band is in degrees of temperature or counts of process. Proportional Band is defined, as the change in the instrument input to cause a 100% change in the controller output.

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Contents Newport Electronics,Inc Newport Electronics,Inc Table of Contents Flow Chart for Alarm 1 Menu Flow Chart for Alarm 2 Menu Input Properties Factory Preset ValuesList of Figures List of TablesTIP Part Introduction DescriptionSafety Considerations EMC ConsiderationsBefore You Begin Part Setup Optional Remote Programmer Front PanelPower Front Panel ConnectionsInput OutputElectrical Installation Power Connections Main Power Connections Fuse Requirement see specificationsThermocouple Wiring Hookup TC Wire Color Chart Thermocouple Input3 Two/Three/Four-Wire RTD Ohm Wiring HookupProcess Current Process VoltageWiring Outputs Isolated Analog Output Wiring Hookup10 Snubber Circuits Wiring Hookup 13 Excitation Output Button Function in Configuration Mode Operation Configuration Mode IntroductionPart Menu Configuration Flow Chart for ID and Set PointsEntering Your NON-DEFAULT SETPOINT/ID Security ID Number Entering Your NON-DEFAULT Full Security ID NumberID Number Set Points SetpointEnter Configuration Menu Configuration MenuInput Type Menu Input Type Thermocouple Enter Input Type MenuThermocouple Submenu Thermocouple TypesInput Type RTD RTD SubmenuRTD Types RTD Value SubmenuReading Configuration Menu Input Type ProcessProcess Submenu Process TypesEnter Reading Configuration Menu Temperature Unit SubmenuDecimal Point Submenu Filter Constant SubmenuReading Configuration If Process was selected INPUT/READING Scale and Offset SubmenuConversion Table Range Conversion NumberAlarm Enter Alarm 1 MenuAlarm 1 ABSOLUTE/DEVIATION Submenu Alarm 1 ENABLE/DISABLE SubmenuAlarm 1 LATCH/UNLATCH Submenu Contact Closure Submenu Active SubmenuAlarm 1 LOW Value Submenu Alarm ENABLE/DISABLE AT Power onAlarm 1 HI Value Submenu Enter Alarm 2 Menu Loop Break ENABLE/DISABLE Submenu Loop Break Time/Field CalibrationEnter Loop Break Time Menu Loop Break Time Value SubmenuSetpoint Deviation ENABLE/DISABLE Submenu Reading Adjust SubmenuThermocouple Field Calibration Submenu Flow Chart for Output OutputSelf Submenu Enter Output 1 MenuMINIMUM/PERCENT LOW Submenu Control Type Output Relay, SSR, or Pulse MAXIMUM/PERCENT High SubmenuAction Type Submenu Auto PID Submenu Anti Integral SubmenuStart Auto Tune PID Proportional Band SubmenuRate Setup Submenu Reset Setup SubmenuCycle Time Submenu Damping Factor Submenu Deadband SubmenuEnter Analog Output Menu Analog Output RetransmissionCURRENT/VOLTAGE Submenu Reading OUTRamp ENABLE/DISABLE Submenu Soak ENABLE/DISABLE SubmenuRamp & Soak Enter Ramp and Soak MenuRamp Value Submenu Soak Value SubmenuID Code Entering or Changing Your NON-DEFAULT ID CodeEnter ID Code Menu Full Security Level Submenu Entering or Changing Your Default ID CodeSETPOINT/ID Security Level Submenu 12 Flow Chart for Communication Option Communication OptionEnter Communication Option Menu Communication Parameters SubmenuBaud Submenu Parity SubmenuStop BIT Submenu BUS Format SubmenuModbus Protocol Submenu Line Feed SubmenuCommunication Interface Standard Submenu Data Flow Mode SubmenuData Separation Character Submenu Alarm Status Submenu Data Format SubmenuMain Reading Submenu Peak Value SubmenuAddress Setup Submenu Address Value SubmenuTransmit Time Interval Submenu Transmit Time Interval Value SubmenuAlarm 1 Display Color Submenu Display Color SelectionEnter Display Color Selection Menu Normal Color Display SubmenuAlarm 2 Display Color Submenu ExampleDisplay Colors change sequences Green RED AmberAmber RED Green Part Specifications Control Control OutputSSR CommunicationsInsulation ExcitationGeneral Input Properties Input Type Range AccuracyPart 5 Factory Preset Values Factory preset valueDisplay Color Colr Part CE Approvals Information Measurement CategoryPage Page Page Warranty/Disclaimer M4165/N/0206