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FE PXR9 - User Manual

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Micro-controller X
Model: PXR4/5/7/9
Operation Manual
C1 C2 AL1 AL2 AL3
PV
SV
°C
PXR
SEL
ECNO:406f
www. .com
information@itm.com1.800.561.8187

Table of Contents

Questions and Answers

  • R
    Ronald RhodesAug 20, 2025
    What to do if FE PXR9 are not controlling properly?
    • B
      Brent KimAug 20, 2025
      If your FE Microcontroller isn't controlling properly, it might be because the set values of the parameters P and are incorrect; try performing the auto-tuning. If the cycle times are too long, decrease the set value of the parameters and gradually. If the output is limited, set the parameters of, and again to be suitable for the process. If the output is not limited correctly, set the parameters of again to be suitable for the process.
  • P
    pwilliamsAug 22, 2025
    Why is auto-tuning not working on my FE PXR9 Microcontrollers?
    • R
      rfisherAug 23, 2025
      If auto-tuning isn't working properly on your FE Microcontroller, it could be due to several reasons. If the display shows or after starting the auto-tuning operation, set the parameters again so that the difference of the set values of and is made larger, and then perform the auto-tuning again. If you changed the SV after starting auto-tuning, set the desired SV and repeat the auto-tuning. Also, if you attempted auto-tuning during ramp-soak operation, set the parameter to and try again. Ensure that peripheral devices are properly connected. If the response of the controlled device was too fast, use a controller whose control cycle is fast, such as PYH.
  • K
    kyoungAug 25, 2025
    How to fix SV if it cannot be changed on FE PXR9?
    • J
      Jordan GriffithAug 26, 2025
      If the SV on your FE Microcontroller cannot be changed, it might be because is set to “1” or “4” in the parameter; set the parameter to “0”, “2”, “3” or “5”. Another reason could be that you're trying to set a value outside the SV limiter; widen the range of to , ensuring it remains within the set range in the input range table.
  • C
    Corey HoweAug 27, 2025
    What to do if ON/OFF control has not functioned properly on FE Microcontrollers?
    • B
      Brad FloresAug 27, 2025
      If the ON/OFF control on your FE Microcontroller isn't functioning properly, it could be because the set value of parameter is not correct; adjust the set value of parameter to be suitable for the device to be controlled. Alternatively, the setting of parameter might be incorrect; set the parameter correctly.
  • D
    David McdowellAug 30, 2025
    Why are parameters not displayed on my FE Microcontrollers?
    • B
      Brenda WalshAug 30, 2025
      If the parameters you wish to confirm or change are not displayed on your FE Microcontroller, it might be because the concerned parameters are set to skip in the parameters of to . To resolve this, change the set value of the concerned dSP.
  • R
    Robin MorenoSep 1, 2025
    Why is the response too slow on my FE Microcontrollers?
    • C
      chad52Sep 1, 2025
      If the response of your FE Microcontroller is too slow, meaning the measured value changes slowly, the input filter constant might be too large. Try decreasing the set value of the parameter .
  • B
    Billy ChambersSep 4, 2025
    What to do if keys do not operate on FE PXR9 Microcontrollers?
    • C
      Charles MedinaSep 4, 2025
      If the keys on your FE Microcontroller do not operate and you cannot change the set value of the parameters, it might be because “1”, “2”, “4”, or “5” is set in the parameter . To fix this, set the parameter to “0” or “3”.
  • D
    Darrell KramerSep 6, 2025
    Why are SV or parameters changing on FE PXR9 Microcontrollers without operation?
    • R
      Ryan BowersSep 7, 2025
      If the SV or set values of some parameters on your FE Microcontroller have changed without any operation, it could be because the parameter was changed. To resolve this, set all the parameters again. Also, if the set value of is larger than 1000, set to “0” and return to an original value.
  • S
    Stephen GonzalezSep 9, 2025
    What to do if an excessive over-shoot occurs during auto-tuning on FE Microcontrollers?
    • B
      Brenda McmahonSep 9, 2025
      If an excessive over-shoot has occurred during auto-tuning operation on your FE Microcontroller: (1) Perform the auto-tuning with the parameter of being “2” (Low PV type). (2) Perform the tuning manually.
  • K
    Kayla ChambersSep 12, 2025
    What to do if ON/OFF control has not started on FE PXR9?
    • B
      Benjamin RiceSep 12, 2025
      If ON/OFF control (Two-position control) has not started on your FE Microcontroller, ensure that 0.0 is set in the parameter . If not, set the parameter to 0.0.

Summary

Part Names and Functions

Operations

2-1 Parameter List

Lists parameters, their descriptions, settings, and page references.

Parameters of the Second Block

Proportional Band (P)

Sets ON/OFF control band or PID control band.

Integral Time (t)

Sets the integral time for PID control.

Derivative Time (d)

Sets the derivative time for PID control.

Control Algorithm (ETFL)

Selects PID, FUZZY, or SELF control.

Input Signal Code (P-n2)

Selects input signal type (thermocouple, RTD, etc.).

Alarm Types (ALN1, ALN2, ALN3)

Selects alarm operation types.

Parameters of the Third Block

SV (Setting Value) Lower Limiter (SU-L)

Sets the lower limit for the SV.

SV (Setting Value) Upper Limiter (SU-H)

Sets the upper limit for the SV.

HB (Set Value of Heater Break Alarm)

Sets value for heater break alarm.

RCJ (Cold Junction Compensation) Setting

Enables/disables cold junction compensation for thermocouples.

DI1 (Digital Input 1) Operation

Station No. for Communication (SINO)

Sets communication station number.

Parity Setting (CoП)

Basic Operations

Basic Operations for the PXR (In Auto Mode)

Illustrates basic operations in Auto mode.

How to Set Values

Basic Operations for the PXR (In Manual Mode)

Illustrates basic operations in Manual mode.

How to Register Set Data

Parameter Functions and Method of Settings

Method of Setting the SV (Setting Value)

Explains how to set the target value for control.

Manual Mode Setting (MANU)

Setting Example: Switching to Manual Mode

Standby Setting (5 t64)

Setting Example: Starting the Control

Local;Remote Operation Setting (Nod)

Setting Example: Switching to Remote Operation

Ramp-Soak Control (Prou)

Setting Example: Starting the Ramp-Soak Operation

Auto-Tuning Function (Rf)

Setting Example: Setting the Auto-Tuning Operation to 1

Key Lock (Lo£)

Setting Example: Setting the Key Lock

Proportional Band (P)

Setting Example: Changing Proportional Band

Integral Time (t)

Setting Example: Changing Integral Time

Derivative Time (d)

Setting Example: Changing Derivative Time

Hysteresis Range for ON;OFF Control (HYS)

Setting Example: Changing Hysteresis Range

Cooling-Side Proportional Band Coefficient (COOL)

Setting Example: Changing Cooling-Side Coefficient

Cooling-Side Proportional Band Shift (db)

Setting Example: Shifting Cooling-Side Band

Anti-Reset Windup (Ar)

Setting Example: Changing Anti-Reset Windup

Control Algorithm (ETFL)

Setting Example: Changing Control System

Self-Tuning

2 How to Execute

Caution

PV (Measured Value) Stable Range (SLF6)

Setting Example: Changing PV Stable Range

HYS (Hysteresis) Mode at ON;OFF Control (onoF)

Setting Example: Setting Hysteresis Mode to ON

Cycle Time of Control Output 1 (FF)

Setting Example: Setting Cycle Time

Cycle Time of Control Output 2 (Cooling-Side) (12)

Setting Example: Setting Cooling-Side Cycle Time

Input Signal Code (P-n2)

Setting Example: Changing Input Signal Code

Setting the Measuring Range (Input Range) (P-SL)

Selection °C; °F (P-F)

Setting Example: Changing Measuring Range

Example of setting measuring range.

PV (Measured Value) Offset (PUOF)

Setting Example: Adjusting PV Offset

SV (Setting Value) Offset (SUOF)

Setting Example: Adjusting SV Offset

Time Constant of Input Filter (P-dF)

Alarm Types (ALN1, ALN2, ALN3)

Setting Example: Setting Alarm Type

Selecting Ramp-Soak Patterns (Pin)

Setting Example: Changing Ramp-Soak Execute Type

Specifying Control Action and Output Direction at Input Burn-out (P-n1)

Setting Example: Changing Burn-out Output

Example of setting burn-out output.

SV (Setting Value) Lower Limiter (SU-L)

Setting Example: Setting the Upper Limiter

Example of setting the SV upper limiter.

SV (Setting Value) Upper Limiter (SU-H)

Time of ON-Delay Alarm or Timer Function (dl Y1, dl Y2, dl Y3)

HB (Set Value of Heater Break Alarm)

Hysteresis of Alarm 1, 2, and 3 (A1 hy, A2 hy, A3 hy)

Setting Example: Changing Alarm 2 Hysteresis

Example of setting alarm hysteresis.

Options of Alarm 1, 2, and 3 (A1 oP, A2 oP, A3 oP)

Upper and Lower Limits for Control Output 1 (PLC1, PHC1)

Setting Example: Changing Output Lower Limit

Example of setting output lower limit.

Upper and Lower Limits for Control Output 2 (PLC2, PHC2)

Output Limit Types (PEUT)

Setting Example: Selecting Output Limit Types

Example of setting output limit types.

RCJ (Cold Junction Compensation) (Setting range: ON;OFF)

Setting Example: Changing RCJ Setting

Adjusting the PV (Measured Value) Display (0%) (Aduo)

Adjusting the PV (Measured Value) Display (100%) (AdUS)

DI Operation (di-1, di-2)

Switching the SV (DI Function 1)

Switching Control RUN;Standby (DI Function 2)

Station No. for Communication (Sino)

Setting Example: Setting Station No.

Example of setting station number.

Parity for Communication (CoП)

Setting Example: Setting Even Parity

Communication Protocol Setting (PEOL)

Setting Example: Changing to Z-ASCII Protocol

Example of changing communication protocol.

Re-transmission Output Type Setting (Ao-r)

Setting Example: Changing Retransmission Output Type

Re-transmission Base Scale (Ro-L)

Setting Example: Setting Retransmission Scales

Example of setting re-transmission scales.

Re-transmission Span Scale (Ao-H)

Remote SV Input (0%) Adjustment (r ENO)

Setting Example: Setting Zero Adjustment

Example of setting remote SV zero adjustment.

Remote SV Input (100%) Adjustment (r ENS)

Remote SV Input Filter Constant (r-dF)

Setting Example: Changing Input Filter Constant

Parameter Display Mask (dSP1 to dSP9, dP10 to dP13)

Setting Example 1: Skipping Parameters

Setting Example 2: Extinguishing PV Display

Setting Example 3: Displaying PV Display

Troubleshooting

1. Display Shows UUUU or LLLL

Troubleshooting for display errors.

2. Err Displayed

Troubleshooting for 'Err' display.

3. Decimal Point Not Displayed

4. Unintended Parameter Changes

Troubleshooting for unintended parameter changes.

5. ON;OFF Control Not Started

Troubleshooting for ON/OFF control not starting.

6. ON;OFF Control Not Functioning Properly

Troubleshooting for improper ON/OFF control function.

7. Controller Not Controlling Properly

General troubleshooting for improper control.

13. Auto-Tuning Not Working Properly

14. Excessive Overshoot During Auto-Tuning

15. Self-Tuning Not Working Properly

▲ Safety Precaution

Over-temperature Protection

Critical safety information regarding continuous heating failure.

FE PXR9 Specifications

General IconGeneral
BrandFE
ModelPXR9
CategoryMicrocontrollers
LanguageEnglish

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