C C1 C2 AL1 AL2 AL3. Micro-controller X. Model: PXR SEL PXR-4. Operation Manual. ECNO:406a

Transcription

1 C C1 C2 AL1 AL2 AL3 Micro-controller X Model: PXR PXR-4 SEL Operation Manual ECNO:406a

2 Table of Contents 1 Part Names and Functions Operations Parameter list Basic operations Parameter functions and method of settings Standby setting Ramp-soak control Canceling the alarm latch Au-tuning function ing ON-delay alarm or the remaining time of timers Setting alarm 1 and Upper limit of alarm 1 and Lower limit of alarm 1 and Key lock Proportional band Integral time Derivative time Hysteresis range for ON/OFF control Cooling-side proportional band coefficient Cooling-side proportional band shift (Dead band/overlap band) Output offset value Anti-reset windup Control algorithm (Measured value) stable range HYS (Hysteresis) mode at ON/OFF control Cycle time of control output Cycle time of control output 2 (Cooling-side) Input signal code Setting the measuring range (Input range) Selection C / F Decimal point position (Measured value) offset (Setting value) offset Time constant of input filter Alarm types Selecting ramp-soak execute type Ramp-soak status display st 8th target st 8th ramp segment time st 8th soak segment time Ramp-soak modes Specifying control action and output direction at input burn-out (Setting value) lower limiter (Setting value) upper limiter The time of ON-delay alarm or timer function

3 ing current detecr input Hb (Set value of heater break alarm) Hysteresis of alarm 1 and Options of alarm 1 and Upper and lower limits for control output Upper and lower limits for control output Output limit types Output value display RCJ (Cold junction compensation) Adjusting the (Measured value) display (0%) Adjusting the (Measured value) display (100%) DI1 (Digital input 1) operation Station No. for communication Parity for communication Input type for PYP (Color Touch-Operation Unit) Parameter display mask Troubleshooting Index Model Specifications P X R 4 1 V FRONT PANEL SIZE CODE 1/16 DIN screw terminal type 4 INPUT SIGNAL Thermocouple C Thermocouple F RTD (Pt100) C RTD (Pt100) F 4 20mA DC, 1-5V DC 0 20mA DC, 0-5V DC CONTROL OUTPUT 1 Relay (SPDT) (reverse action) Relay (SPDT) (direct action) SSR driver (reverse action) SSR driver (direct action) 4 20mA DC (reverse action)* 4 20mA DC (direct action)* CODE T R N S B A CODE A B C D E F * Not available with heater break alarm ** Not available with heater break alarm w/ process alarm (1 point) or process alarm (2 points) *** Not available with RS485 + digital input (1 point). Current transformer required. Please specify part # (at right). 0-10V DC output future option SSR and 4-20mA DC, 0-10V DC future option ADDITIONAL OPTIONS CODE None With RS485 (Modbus) R With digital input (1 point) DI With RS485 (Modbus) + digital input DI-R (1 point) ALARM OPTIONS CODE Heater break alarm w/ 3 process alarm (1 point)*** None 4 Process alarm (2 points) 5 CONTROL OUTPUT 2 None Relay (SPST) (reverse action)** Relay (SPST) (direct action)** CODE Y A B ACCESSORIES Part # Current Transformer 1-30A CTL-6-S Current Transformer 20-50A CTL-12 Signal Converter RS485 RS232 RSFC24 Program Loader PXR4 loader assembly, includes free software 3

4 1 Part Names and Functions This chapter explains the part names and functions on the face panel. The face panel has the and displays, the status indicating lamp, and the setting keys, etc. Those functions are explained below. Please read and understand them before using the PXR. For details about the setting of parameters, see Chapter w Lamp for control output 2 q Lamp for control output 1 e Alarm lamp r Alarm lamp for heater break C1 C2 AL1 AL2 AL3 C t (Measured value) display o lamp PXR-4 SEL y (Setting value) display!0au-tuning/self-tuning lamp u SEL key i keys q Lamp for control output 1 Lights up while control output 1 stays ON. w Lamp for control output 2 Lights up while control output 2 stays ON. e Alarm lamp Lights up when an error occurs. While the lamp lights up, the alarm output stays ON. r Alarm lamp for heater break Lights up when the heater is broken. While the lamp lights up, the alarm output for heater break stays ON. t (Measured value) display s the. When setting a parameter, its name appears. y (Setting value) display s the. When setting a parameter, its value appears. u SEL key Used select a parameter block and a parameter, and register a set value. i keys Used change the, call parameters, and change parameter values. o lamp Lights up while the is displayed in the display. When parameters and data are displayed, the lamp goes out.!0au-tuning/self-tuning lamp Flashes under an au-tuning or self-tuning operation. 4

5 2 Operations This chapter explains how set the (Setting value) and the parameters for the PXR. 2-1 Parameter list Parameters for the PXR are classified under three blocks according the frequency of use. The parameters of the second and third blocks are used at initialization or when they are of absolute necessity. Parameters of the first block Parameter Parameter name display symbol Standby setting Description Switches between RUN and Standby for control. Setting range and facry default setting (*) on: Control standby (Output: OFF, Alarm: OFF) off: Control RUN* User s set value Parameter mask DSP dsp1-1 Reference page 11 Ramp-soak control Switches between Start, Sp, and Hold for ramp-soak control off: Sp* run: Start HLd: Hold dsp Alarm latch cancel Cancels the alarm latch. 0: Keeps the alarm latch.* 1: Opens up the alarm latch. dsp Au-tuning Used for setting the constants for,, and by au-tuning. 0: OFF (Resets the au-tuning or does not use it.)* 1: ON (Performs the au-tuning in the standard type.) 2: ON (Performs the au-tuning in low type ( value-10%fs).) dsp Timer 1 display Timer 2 display Set value of alarm 1 Lower limit value of alarm 1 Upper limit value of alarm 1 Set value of alarm 2 Lower limit value of alarm 2 Upper limit value of alarm 2 Key lock s the remaining time of timer s the remaining time of timer Sets the value at which alarm 1 is detected. Sets the lower limit value at which alarm 1 is detected. Sets the upper limit value at which alarm 1 is detected. Sets the value during which alarm 2 is detected. Sets the lower limit value at which alarm 2 is detected. Sets the upper limit value at which alarm 2 is detected. is displayed when alarm type 1 is 0 15, or 32 34, and or is displayed when alarm type 1 is 16 3 is displayed when alarm type 2 is 0 15 or 32 34, and or is displayed when alarm type 2 is 16 3 Specifies whether or not allow the change of parameters. - (Unit: seconds) - (Unit: seconds) When the alarm type is absolute value: 0 100%FS (*:10) When the alarm type is deviation: %FS (*:10) When the alarm type is absolute value: 0 100%FS (*:10) When the alarm type is deviation: %FS (*:10) 0: All settings are changeable both from the face panel and via communication.* 1: All settings are unchangeable from the face panel, but changeable via communication. 2: Only the is changeable from the face panel, and all settings are changeable via communication. 3: All settings are changeable from the face panel, but unchangeable via communication. 4: All settings are unchangeable from the face panel or via communication. 5: Only the is changeable from the face panel, but all settings are unchangeable via communication. dsp1-16 dsp1-32 dsp1-128 dsp2-1 dsp2-2 dsp2-4 dsp2-8 dsp2-16 dsp * 16 * 16 * 16 * 16 * 16 * Note: The parameters for which * is marked with the page number in Reference page are related Remedies of 4 on page 68. 5

6 Parameters of the second block Note: The parameters for which * is marked with the page number in Reference page are related Remedies of 4 on page 68. Parameter display symbol Parameter name Proportional band Integral time Derivative time Hysteresis range for ON/OFF control Description Setting range and facry default setting (*) User s set value Parameter mask DSP Reference page Set 0.0 select the ON/OFF % (*: 0) control (Two-position control) seconds (*: 240) seconds (*: 60.0) Sets the hysteresis for ON/OFF 0 50%FS (*: equivalent of 0 C) control. dsp3-2 dsp3-4 dsp3-8 dsp * 21 Cooling-side proportional band coefficient (*: 0) dsp Cooling-side proportional band shift (*: 0.0) dsp Output convergence value % (*: single 0.0, dual 50.0) dsp Anti-reset windup 0 100%FS (*: 100%FS) dsp * Control algorithm Selects the control algorithm. PID: Runs normal PID control.* FUZY: Runs PID control with fuzzy logic. SELF: Runs PID control with self-running. dsp (Measured value) stable range Sets the stable range for the selftuning operation %FS (*: 2%FS) dsp * Setting HYS (Hysteresis) mode Selects the hysteresis operation at ON/OFF control. off: Starts the two-position control at the values of +HYS/2 and -HYS/ on: Starts the two-position control at the values of and +HYS, or and -HYS. dsp Cycle time of control output 1 Not shown at 4-20mA DC output RLY, SSR: seconds (*: Contact output = 30, SSR/SSC-driven output = 2) dsp Cycle time of control output 2 (cooling-side) seconds (*: 30) dsp Input signal code Set this parameter when changing the types of temperature sensors (*: specified by cusmer while ordering) Note 1 dsp Lower limit of measuring range (*: specified by cusmer while ordering) Note 1 dsp Upper limit of measuring range (*: specified by cusmer while ordering) Note 1 dsp Setting the decimal point position 0 2 (*: specified by cusmer while ordering) Note 1 dsp C / F selection C / F dsp (Measured value) offset %FS (*: 0) dsp * (Setting value) offset %FS (*: 0) dsp * Time constant of input filter seconds (*: 0) dsp Alarm type 1 Alarm type 2 Sets the types of alarm operations. Sets the types of alarm operations (*: 0/5) 0 34 (*: 0/9) dsp5-64 dsp Status display of ramp-soak - (*: OFF) dsp Selecting rampsoak execute type Selects ramp-soak patterns. 1: Performs 1st 4th segments.* 2: Performs 5th 8th segments. 3: Performs 1st 8th segments. dsp st target value /Switching- value Sets the 1st target of ramp-soak operation. / Selected at switching- function for DI1 Within the limit. (*: 0%FS) dsp * First ramp segment time Sets the 1st ramp segment time. 0 99h59m (*: 0.00) dsp

7 Note: The parameters for which * is marked with the page number in Reference page are related Remedies of 4 on page 68. Parameter display symbol Parameter name Description Setting range and facry default setting (*) User s set value Parameter mask DSP Reference page 1st soak segment time Sets the 1st soak segment time. 0 99h59m (*: 0.00) dsp nd target Sets the 2nd target of ramp-soak operation. Within the limit. (*: 0%FS) dsp6-64 * 44 2nd ramp segment time Sets the 2nd ramp segment time. 0 99h59m (*: 0.00) dsp nd soak segment time Sets the 2nd soak segment time. 0 99h59m (*: 0.00) dsp rd target Sets the 3rd target of ramp-soak operation. Within the limit. (*: 0%FS) dsp7-2 * 44 3rd ramp segment time Sets the 3rd ramp segment time. 0 99h59m (*: 0.00) dsp rd soak segment time Sets the 3rd soak segment time. 0 99h59m (*: 0.00) dsp th target Sets the 4th target of ramp-soak operation. Within the limit. (*: 0%FS) dsp7-16 * 44 4th ramp segment time Sets the 4th ramp segment time. 0 99h59m (*: 0.00) dsp th soak segment time Sets the 4th soak segment time. 0 99h59m (*: 0.00) dsp th target Sets the 5th target of ramp-soak operation. Within the limit. (*: 0%FS) dsp7-128 * 44 5th ramp segment time Sets the 5th ramp segment time. 0 99h59m (*: 0.00) dsp th soak segment time Sets the 5th soak segment time. 0 99h59m (*: 0.00) dsp th target Sets the 6th target of ramp-soak operation. Within the limit. (*: 0%FS) dsp8-4 * 44 6th ramp segment time Sets the 6th ramp segment time. 0 99h59m (*: 0.00) dsp th soak segment time Sets the 6th soak segment time. 0 99h59m (*: 0.00) dsp th target Sets the 7th target of ramp-soak operation. Within the limit. (*: 0%FS) dsp8-32 * 44 7th ramp segment time Sets the 7th ramp segment time. 0 99h59m (*: 0.00) dsp th soak segment time Sets the 7th soak segment time. 0 99h59m (*: 0.00) dsp th target Sets the 8th target of ramp-soak operation. Within the limit. (*: 0%FS) dsp9-1 * 44 8th ramp segment time Sets the 8th ramp segment time. 0 99h59m (*: 0.00) dsp th soak segment time Sets the 8th soak segment time. 0 99h59m (*: 0.00) dsp Ramp-soak mode Selects the power-on start, repeat, and standby functions for ramp-soak operations (*: 0) dsp Note 1: When a cusmer does not specify the settings while ordering, the following settings are selected as facry defaults. Thermocouple input: Thermocouple K Measured range: C Resistance bulb input: Measured range: C Voltage/Current input: Scaling: 0 100% 7

8 Parameters of the third block Note: The parameters for which * is marked with the page number in Reference page are related Remedies of 4 on page 68. Parameter display symbol Parameter name Description Setting range and facry default setting (*) User s set value Parameter mask DSP Reference page Control action Specifies control action and output at the input burn-out (*: specified by cusmer while ordering) Note 2 dsp (Setting value) lower limiter Sets the lower limit of the %FS (*: 0%FS) dsp * (Setting value) upper limiter Sets the upper limit of the %FS (*: 100%FS) dsp * Delay time 1 Delay time 2 Current trans display HB (Set value of heater break alarm) setting Delay time or timer value for alarm 1 relay seconds (*: 0) Delay time or timer value for alarm 2 relay seconds (*: 0) s the current detecr input value for HB alarm. - Sets the operation value that detects the heater break A (Setting 0.0A turns off the HB alarm.) (*: 0.0) dsp9-128 dsp10-1 dsp10-4 dsp Alarm 1 hysteresis Sets the hysteresis range of ON and OFF of alarm 0 50%FS (*: 1) dsp * Alarm 2 hysteresis Sets the hysteresis range of ON and OFF of alarm 0 50%FS (*: 1) dsp * Alarm 1 options Sets the optional functions of alarms 1 and (*: 000) dsp Alarm 2 options Alarm latch (1: use, 0: not use) Alarm of error status (1: use, 0: not use) De-energized output (1: use, 0: not use) (*: 000) dsp Lower limit for output 1 Sets the lower limit for output % (*: -0) dsp Upper limit for output 1 Sets the upper limit for output % (*: 100) dsp Lower limit for output 2 Sets the lower limit for output % (*: -0) dsp Upper limit for output 2 Sets the upper limit for output % (*: 100) dsp Output limit types Sets the limit types of outputs 1 and 2 (breaking the limit, or maintained within the limit) (*: 0) dsp Output value (MV) display s the value of output - dsp Output value (MV) display s the value of output - dsp RCJ (Cold junction Sets the cold junction compensation compensation) function ON/OFF. setting ON: Performs the RCJ (Cold junction compensation).* OFF: Does not perform the RCJ (Cold junction compensation). dsp gradient (*: 000) dsp12-4 User-definable zero adjustment Shifts the zero point of input value %FS (*: 0) dsp * User-definable span adjustment Shifts the span of input value %FS (*: 0) dsp * DI1 (Digital input 1) operation Sets the DI1 operations (*: 0=OFF) dsp Station No. Sets the station No. for communication (Setting does not start the communications function.) (*: 1) dsp Parity setting Sets the parity for communication. (The baud rate is fixed at 9600bps. 0: Odd parity* 1: Even parity 2: No parity dsp Input type for PYP (Color Touch- Operation Unit) Sets the input type for communicating with PYP (*: 34) dsp Parameter mask Sets whether or not display each parameter (*: specified by cusmer while ordering) Note 2: The following settings are selected as facry defaults depending on the model you order. Seventh digit = Y model: 0 Seventh digit = A model: 4

9 2-2 Basic operations Just after power-on: The display below appears just after power-on. C1 C2 AL1 AL2 AL3 C PXR-4 SEL How switch parameters: The figure below shows the basic operations for the PXR. If it has not been used for 30 seconds, the display returns the one just after power-on (/ displayed). Just after power-on (/ displayed) Setting parameters C C1 C2 AL1 AL2 AL3 SEL PXR-4 SEL SEL SEL (approx. (approx. (approx. 1 second) 3 seconds) 5 seconds) SEL SEL Parameters of the first block Parameters of the second block Parameters of the third block Pressing and holding the keys makes the value increase or decrease fast. Basic operations for the PXR How set values: key: One press increases the value by Press and hold this key increase the value fast. key: One press decreases the value by Press and hold this key decrease the value fast. How register the set data: By pressing the SEL key, the displayed values are registered. Note that the (0) will be registered in 3 seconds without any operation. 9

10 2-3 Parameter functions and method of settings Method of setting the (Setting value) The is a target value for control. Any that is outside of the range set in the parameters of (lower limit) and (upper limit) of the third block cannot be set. (See page 48.) Related parameters: (page 48) (page 48) [Setting example] Changing the from 250 C 1195 C Press the or keys display. will be registered in the (0) in three seconds. After that, the controller will operate with the being

11 Standby setting (Settings: off/on) This parameter switches the control between RUN and Standby. During standby, the control output and the alarm output stay OFF, like the standby for ramp-soak operation. While the alarm with a hold is selected, the hold function takes effect after changing the Standby setting from ON OFF. is displayed during the standby for ramp-soak operations or the controller changes the standby state in case of the occurrence of errors. The other operations are the same as those of the rampsoak standby. The setting of ON/OFF for standby is saved after poweroff. When the standby is set ON during the au-tuning, self-tuning, and ramp-soak operations, those operations will sp. (The PID constant will not be renewed.) Even through it is set OFF later, the au-tuning, self-tuning, and ramp-soak operations will not be re-started. During standby, the ON-delay timer is reset. When returning RUN from the standby state, the timer will start from the beginning. [Setting example] Starting the control Press and hold the SEL key for one second. will be displayed. The current setting ( ) flashes on the display. Press the or keys display. The standby state for control is selected. (control output and all the alarm outputs: OFF) If you want display the operation status, press and hold the SEL key for two seconds. The value on the display will flash, indicating the standby status. 11

12 Ramp-soak control (Settings: off/run/hld) (Option) This function aumatically changes the (Setting value) according the program pattern set in advance as shown in the right line graph. Up eight pairs of rampsoak operation can be programmed. The first ramp starts at the (Measured value) that is the one just before running the program. The program can also aumatically run at power-on (Power-on starting function). Refer the parameter of (page 44). Related parameters: (page 44) (page 44) (page 44) (page 44) (page 44) (page 43) Up First ramp TM1r First soak Second ramp Second soak Third ramp Ramp: the section in which the changes ward the target value. Soak: the section in which the is the target value, and remains unchanged. Third soak TM1S TM2S TM3S TM2r TM3r Fourth ramp TM4r Fourth soak TM4S Up TM8s Up TM8r [Setting example] Starting the ramp-soak operation Press and hold the SEL key for one second. will be displayed on the display. Press the key display The current setting ( ) flashes on the display. Press the or keys display. Then, the program will start according the ramp-soak pattern that is set in advance. If you want display the operation status, press and hold the SEL key for two seconds. 12

13 Canceling the alarm latch (Settings: 0/1) (Option) This parameter cancels the alarm latch when it is latching. Related parameters: (page 54) [Setting example] Canceling the alarm latch Press and hold the SEL key for one second. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will change in a few seconds. If you want display the operation status, press and hold the SEL key for two seconds. 13

14 Au-tuning function (Settings: 0/1/2) [Note] If the controller is powered off during au-tuning, this makes the au-tuning ineffective with each parameter of,, and unchanged. To start the au-tuning operation, set 1 or 2 again. To suspend the au-tuning, set 0. This makes the au-tuning cancel with each parameter of,, and unchanged. Once the parameters of,, and are set aumatically by the au-tuning, those parameters are sred in the controller even after it is powered off. Therefore, it is not necessary execute the au-tuning again. By setting 1 or 2, the au-tuning operation starts, and at the end of the tuning, will be displayed aumatically. After the au-tuning operation, the controller starts operate with,, and values set aumatically. A decimal point at the right end of the display flashes during au-tuning. There are two codes for AT: Setting code [1]: standard type Performs the au-tuning based on the. Setting code [2]: Low type Performs the au-tuning based on the -10%FS. [Note] Since ON/OFF control is performed during au-tuning, overshoot against the may occur. To reduce the overshoot, execute the au-tuning operation with the setting code [2] (Low ) selected. The au-tuning can be executed both just after power-on and in a control or stable status. Related parameters: (page 18) (page 19) (page 20) (page 24) (page 22) [Setting example] Setting the au-tuning operation 1 Press and hold the SEL key for one second. will be displayed on the display. 7. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and the au-tuning will start. During au-tuning, a decimal point at the right end of the display flashes. When the au-tuning finishes properly, a decimal point sps flashing, and the set values of,, and parameters change. When the au-tuning finishes abnormally, a decimal point sps flashing, but the set values of,, and parameters remain unchanged. If you want display the operation status, press and hold the SEL key for two seconds. 14

15 , ing ON-delay alarm or the remaining time of timers (unit: seconds) (Option) These parameters display the remaining time of Timers 1 and The remaining time of the ON/OFF-delay timer is counted down. When the counter shows, the alarm relay is closed. During count-down, if the changes the value of the temperature at which the alarm is set OFF, or if DI for the timer is set OFF, the counter is reset, and the alarm relay is opened. display parameter Remaining time (seconds) [Setting example] ing ON-delay alarm or the remaining time of timers Press and hold the SEL key for one second. will be displayed. Press the key display. The remaining time of timer 1 will be displayed. Press the or keys display the remaining timer of and. If you want display the operation status, press and hold the SEL key for two seconds. 15

16 Setting alarm 1 and 2 Upper limit of alarm 1 and 2 Lower limit of alarm 1 and 2 (Setting range: Absolute value alarm: 0 100%FS Deviation value alarm: %FS ) }(Option) These parameters are used for settings of alarm 1 and When the alarm type ( or ) is set 0 15, alarms 1 and 2 ( and ) can be set. When the alarm type ( or ) is set any value other than 0 15, the upper and lower limits of alarm 1 and 2 (,,, ) can be set. [Note] Setting codes (12 15) cannot be selected in alarm type 1 ( ). Related parameters:, (page 40), (page 53), (page 49), (page 54) [Setting example] Setting the operation value of alarm 2-10 C Press and hold the SEL key for one second. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the operation value of alarm 2 being -10 C. If you want display the operation status, press and hold the SEL key for two seconds. 16

17 Key lock (Setting range: 0 5) This parameter makes the set values of parameters unchangeable. However, the parameter name and the set values can be displayed. To reset the key lock, change. Even though the key lock is set, control and alarm functions can operate properly. There are six levels of the key lock: : Unlocked (reset) : All settings are unchangeable from the controller, but changeable via communication. : Only the is changeable from the controller, and all settings are changeable via communication. : All settings are changeable from the controller, but unchangeable via communication. : All settings are unchangeable from the controller or via communication. : Only the is changeable from the controller, but all settings are unchangeable via communication. [Setting example] Setting the key lock 2 Press and hold the SEL key for one second. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, any setting other than the cannot be changed from the front panel. If you want display the operation status, press and hold the SEL key for two seconds. 17

18 Proportional band (Setting range: % of the measured range) To select the ON/OFF control (two-position control), set 0.0. It is not necessary set and. can be aumatically set by the au-tuning operation. When is o small, control will be unstable, and when is o large, the response will be delayed. Set the hysteresis of the ON/OFF control (two-position control) in the parameter. If au-tuning is run after the ON/OFF control is selected, the ON/OFF control changes the PID control. To keep the ON/OFF control selected, do not execute the autuning. [Setting example] Changing the proportional band from 0% 10% Press and hold the SEL key for three seconds. will be displayed on the display. The current setting ( ) flashes on the display. Press the or keys display. controller will operate with being 10%. will sp flashing and will be registered for. After that, the If you want display the operation status, press and hold the SEL key for two seconds. 18

19 Integral time (Setting range: seconds) can be set aumatically by the au-tuning operation. can also be set manually. When is set 0, the integral operation does not start. When is set 0.0, this makes the setting of ineffective. [Setting example] Changing the integral time from 240 seconds 600 seconds Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with being seconds. If you want display the operation status, press and hold the SEL key for two seconds. 19

20 Derivative time (Setting range: seconds) can be set aumatically by the au-tuning operation. can also be set manually. When is set 0, the differential operation does not start. When is set 0.0, this makes the setting of ineffective. [Setting example] Changing the differential time from 60.0 seconds 50.0 seconds Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with being 50.0 seconds. If you want display the operation status, press and hold the SEL key for two seconds. 20

21 Hysteresis range for ON/OFF control (Setting range: 0 50%FS) To select the ON/OFF control (two-position control), set 0.0. It is not necessary set and. When the hysteresis range (Range of ON/OFF control) is o small, the output may switch the ON/OFF frequently. (This may affect the life of the device be controlled, especially when contact output is selected.) The unit of the set value of this parameter is ºC or ºF (engineering unit). The setting range varies according the measured range of input. [Ex] Input Thermocouple K : At measured range of ºC, the setting range is ºC. Resistance bulb : At measured range of ºC, the setting range is 0 75 ºC. Related parameters: (page 18) (page 30) [Setting example] Changing the hysteresis range from 1 C 35 C Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the hysteresis range being 35 C. If you want display the operation status, press and hold the SEL key for two seconds. 21

22 Cooling-side proportional band coefficient (Option: Available for DUAL output only) (Setting range: ) This parameter is used for setting the cooling-side proportional band. (See the figure below.) Heating side Heating-side proportional band Output 50 Cooling-side proportional band Proportional band (P) Cooling side Coefficient: 0.5 Coefficient: 0 Coefficient: 0 MV Before setting the cooling-side proportional band, set the heating-side proportional band an optimum value. To select the two-position control for the cooling side, set 0.0. Cooling-side Proportional band (P) = x Coefficient proportional band 2 When is set 0.0 and is set 0.0 in the dual output type, the cooling output is as shown in the figure below. The hysteresis is fixed at 0.5%FS. Heating output (Output 1) Cooling output (Output 2) ON 0.5% 0.5% ON OFF OFF HYS DB Related parameters: (page 21) (page 18) (page 23) Ex) When making the proportional band of 10% of the full scale with the proportional band (P) being 50%: 50% 10% = x Coefficient 2 Consequently, the coefficient is 0. [Setting example] Changing the cooling-side proportional band coefficient from 0 5 Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the cooling-side proportional band coefficient being If you want display the operation status, press and hold the SEL key for two seconds. 22

23 Cooling-side proportional band shift (Dead band/overlap band) (Option: Available for DUAL output only) (Setting range: ) This parameter is used for shifting the cooling-side proportional band from the set value. (See the figure below.) and when it is a negative value, the "Overlap band". When is a positive value, it is called the "Dead band", Since the unit of is same one used for MV [%], if you Output want set in the unit of deviation [%], must be Heating side Cooling side converted using the equation below. MV Overlap band Dead band MV 100 DB [%] = Deviation x [%] P Ex) When making a dead band with a deviation of 0 [%] from the while the proportional band (P) is 0%: DB [%] = 0 x = 20 [%] MV=50% Consequently, set the parameter 20 [%]. Related parameters: (page 20) [Setting example] Shifting the cooling-side proportional band by 0 Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with being 0 %. If you want display the operation status, press and hold the SEL key for two seconds. 23

24 Output offset value (Setting range: %) Anti-reset windup (Setting range: 0 100%FS) The anti-reset windup ( ) is aumatically set an optimum value by the au-tuning operation. By setting, the amount of overshoot can be adjusted. [Note] By making use of a fuzzy control system equipped PXR, the amount of overshoot can be minimized without setting and. AR value AR value } } In this range, the integral operation is not performed. In this range, the integral operation is performed. } In this range, the integral operation is not performed. [Setting example] Changing the anti-reset windup from 60 C 80 C. Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the anti-reset windup being 80 C. If you want display the operation status, press and hold the SEL key for two seconds. 24

25 Control algorithm (Settings: PID/FUZY/SELF) This parameter is used for selecting PID control, FUZZY- PID control, or PID control with self-tuning. To select the PID control or FUZZY-PID control, it is necessary set the parameters of,,, and manually or by the au-tuning in advance. For the ON/OFF control (Two-position control), select the PID control and then set 0.0. For detailed information, refer (page 20). Refer the next page for the PID control with self-tuning. [Setting example] Changing the control system from PID FUZZY Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the FUZZY control system activated. If you want display the operation status, press and hold the SEL key for two seconds. 25

26 [Self-tuning] 1 Function: With the self-tuning function, PID parameters are aumatically re-optimised depending on the actual condition of device be controlled and the setting temperature (). 2 How execute: Follow the procedure shown below set and execute the self-tuning. The self-tuning starts run at the appropriate conditions. (See page 27) q Power on the PXR. w Set the. e Select in the parameter of.* 1 r Power off the PXR. If the device that is be controlled has powered ON at this point: Wait until the temperature of the device that is be controlled falls and stabilizes. To re-start the self-tuning: Select in the parameter of. t Power on the device be controlled. y Power on the PXR. The device be controlled and the PXR should be powered ON at the same time or in order of the left flowchart. (Tuning / Control) * 2 *1: How set the parameter of : SEL SEL *2: during self-tuning is shown below: This lamp flashes. 26

27 3 Conditions under which the self-tuning runs: q At power-on: The self-tuning runs when all of the following conditions are met. The that appears at power-on is not the same one when the,,, and were set previously. (When the,,, and are set by the self-tuning, au-tuning, manual setting, and writing by communications ols at previous time) The (-) at power-on is larger than (the value of x input range) or (the set value of ). w When the is changed: The self-tuning runs when all the conditions below are met. The changed is larger than the that was set when the,,, and were selected previously. The changed amount of the is larger than 0. The changed amount of the is larger than (the set value of x input range) or (the set value of ). e When output becomes unstable: The self-tuning runs when control becomes unstable and the hunting of the operating output (MV) occurs. (The selftuning runs only once as long as the is not changed.) r When the control standby mode is canceled: The self-tuning runs by the same reason as "q At power-on". * Only when the PXR is set standby mode at power-on. 4 Conditions under which the self-tuning does not run: q During control standby mode w During two-position control (Parameter of = 0) e During au-tuning operation r During ramp-soak operation t Error display ( or is displayed.) y During dual output (The set value of the parameter of is larger than ) u When setting the parameters of,,, and manually (including the setting written by communications ols) 5 Conditions under which the self-tuning is suspended: q At the condition described in 4 shown above w When the is changed during self-tuning operation e When the self-tuning operation can not be completed within approx. 9 hours 6 Caution q Once the PID constant is set, the self-tuning does not operate at next power-on as long as the is not changed. w For an accurate tuning, be sure power on the device be controlled before or at the same time as the PXR is powered on. If the PXR has be powered on first for reasons of the system configuration, perform the au-tuning with the PID or FUZZY control. e If the device be controlled is powered on under temperature change (especially when it rises), accurate tunings can not be performed. Be sure power on the PXR when the temperature of device be controlled is stabilized. r The self-tuning does not run for cooling system control under Direct Action output (Parameter = 2 or 3). t In case the control is not stable after performing the self-tuning, change the algorithm the PID or FUZZY control and perform the au-tuning. 27

28 7 Reference [About the self-tuning method] The PID constant is calculated in one of the following two methods. The method is selected aumatically depending on the characteristics of the device be controlled. Step response method Limit cycle method The following figures show the operations at power-on and changing the, and under unstable control. q Operations at power-on Step response method Limit cycle method During tuning Time During tuning Time w Operations at changing the Step response method Limit cycle method Changing the Changing the During tuning Time During tuning Time e Operation under unstable control Limit cycle method Unstable control During tuning Time 100% MV 28

29 (Measured value) stable range (Setting range: 0 100%FS) Self-tuning logic recognizes that control is stable if is staying within the ±. It is not necessary set this parameter under normal conditions. [Setting example] Changing the stable range from 2 3 Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or keys display. will sp flashing and will be registered for. After that, the controller will operate with the range being If you want display the operation status, press and hold the SEL key for two seconds. 29

30 HYS (Hysteresis) mode at ON/OFF control (Settings: off/on) This parameter is use for selecting the hysteresis operation mode at ON/OFF control. onof : OFF onof : ON : Starts the ON/OFF control at the values of HYS HYS + and : Starts the ON/OFF control at the values of and +HYS, or and -HYS. Default setting: ON Reverse action Direct action HYS HYS HYS HYS [Setting example] Setting the hysteresis mode ON Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the key display. will sp flashing and will be registered for. After that, the controller will operate with the hysteresis being as shown in the figure of ON above. If you want display the operation status, press and hold the SEL key for two seconds. 30

31 Cycle time of control output 1 (Setting range: seconds) This parameter is applicable for the contact output and SSR-driving output. While input is within the proportional band, output changes between ON and OFF in cycles. These cycles are called cycle time. Output: ON Cycle time Cycle time Do not set this parameter "0". For contact output: The higher the frequency of output is, the more precise the control becomes. However a high frequency of output may shorten the life of the contacts and the device be controlled. Be sure adjust the proportional cycles considering controllability and the life of the device and the contacts. Typical: 30 seconds For SSR-driving output: Use in short cycles if there is no problem with the device be controlled. Typical: 1 2 seconds [Setting example] Setting the cycle time from 30 seconds 20 seconds Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. After that, the controller will operate with the cycle time being 20 seconds. If you want display the operation status, press and hold the SEL key for two seconds. 31

32 Cycle time of control output 2 (Cooling-side) (Setting range: seconds) (Option: Available for DUAL output only) By this parameter, the cycle time of control output 2 it set. While input is within the proportional band, output changes between ON and OFF in cycles. These cycles are called cycle time. Output: ON Cycle time Cycle time For contact output: The higher the frequency of output is, the more precise the control becomes. However a high frequency of output may shorten the life of the contacts and the device be controlled. Be sure adjust the cycle time considering controllability and the life of the device and the contacts. Typical: 30 seconds Do not set this parameter "0". [Setting example] Setting the cooling-side cycle time from 30 seconds 20 seconds Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. After that, the controller will operate with the cooling-side cycle time being 20 seconds. If you want display the operation status, press and hold the SEL key for two seconds. 32

33 Input signal code (Setting range: 1 16) This parameter is used for selecting input signals. Input signal varies depending on the sensors (2 types below). Set a code that corresponds the sensor you use. Type I : Thermocouples (9 kinds of signals) Resistance bulbs (1 kind of signal) Type II : Voltage, current Input signals can be selected within the same type. It is impossible select input signals of a different type. For type II, when changing from the voltage input the current input, connect the supplied resistance of 250 Ω between terminals!7 and!8 as well as changing the code. When changing from the current input the voltage input, remove the resistance of 250 Ω as well as changing the code. [Note] After changing the codes, power off the PXR, and then power it on again. Input signals and codes q Input signals code table Type Input signal Resistance bulb (RTD) Pt 100 Thermocouple J K R I B S T E N PL-II II 1 5 V, 4 20mA DC Code [Setting example] Changing from thermocouple K thermocouple T in Type I Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. After that, the controller will operate with the kind of input signals being thermocouple T. If you want display the operation status, press and hold the SEL key for two seconds. 33

34 Setting the the measuring range (Input range) (Setting range: ) Selection C / F (Settins: C / F) These parameters is used for setting the lower and upper limits of the measured range and unit of temperature. A decimal point position can be set in the parameter of. For the current and voltage inputs,, and can be set for, and for other inputs, and can be set for. See the right table for input range. w Input range table (Standard range) Input type Resistance bulb JIS (IEC) Thermocouple Pt100Ω J J K K K R B S T T E E N PL-II Range ( C) With / without a decimal point ( C)* O O O O O O O X O O O O X X X X O O O O X X Range ( F) With / without a decimal point ( F)* O O O X O O X X O X O X X X X X X X X X X X Direct-current voltage 1 5 V DC (Scaling is possible) * O: with X: without * For 4 20 ma DC input, connect a resistance of 250Ω between terminals!7 and!8 change the input the 1 5 V DC input. [Note] The input accuracy is ±0.5%FS±1 digit except the cases shown below. Thermocouple R at C: In this range, this controller may display a wrong process value Thermocouple B at C: because of the characteristecs of the sensor. Other kinds of thermocouples: ±0.5% FS ± 1 digit ± 1 C 34

35 [Setting example] Changing the measuring range from 0 C 150 C -100 C 200 C (Pt100) Press and hold the SEL key for three seconds. will be displayed on the display Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. Press the key display on the display. The current setting ( ) flashes on the display. Press the or key display. will be registered for. After that, the controller will operate with the measured range being -100 C 200 C. If you want display the operation status, press and hold the SEL key for two seconds. 35

36 Decimal point position (Settings: 0 / 1 / 2) This parameter is used for selecting the decimal point position for the (Measured value). Related parameters: (page 34) (page 34) "0" (No digit after decimal point) "1" (1 digit after decimal point) "2" (2 digit after decimal point. This is valid only for the voltage and current inputs) [Setting example] Changing the decimal point position setting from 0 1 Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the key display. will sp flashing and will be registered for. After that, the controller will operate with one decimal point position displayed. If you want display the operation status, press and hold the SEL key for two seconds. 36

37 (Measured value) offset (Setting range: %FS) With this function, predetermined value is added the input reading. This parameter is used for adjusting PXR s indication so that it becomes same as the one of the other instruments like recorder. The PXR operates at the displayed (the value which the offset value is added). [Setting example] Adding the offset value of 5 C the input value of 1200 C Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. After that, the controller will operate so that the value which the offset value of 5 C is added can be brought close the set value. If you want display the operation status, press and hold the SEL key for two seconds. 37

38 (Setting value) offset (Setting range: %FS) With this function, predetermined value is added the original. This parameter is used eliminate the offset that occurs in performing P control. The PXR operates based on the which the offset value is added. Alarm judgment is made by the displayed which the offset value is not added. [Setting example] Adding the offset value of 9 C the currently set value Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. (The displayed remains unchanged.) After that, the controller will operate at the value which the offset value of 9 C is added. If you want display the operation status, press and hold the SEL key for two seconds. 38

39 Time constant of input filter (Setting range: seconds) This parameter is used for reducing the fluctuation of input signal (filter function). For example, when the input filter constant is set 5 seconds, the changes as shown in right figure while input changes from 0 100% suddenly. It takes 5 seconds for the change from 0 62%. X C 100 Input filter Y PID Input Control output [Note] The facry default setting is 0 (5 seconds). Do not change this parameter as long as changing is not of absolute necessity. 63 (%) 5 seconds display t [Setting example] Changing the filter constant from 0 (5 seconds) 10.0 (10 seconds) Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the or key display. will sp flashing and will be registered for. After that, the controller will operate with the filter constant being If you want display the operation status, press and hold the SEL key for two seconds. 39

40 , Alarm types (Setting range: 0 34) (Option) These parameters is used for selecting the operation types of Alarms 1 and Alarm1 is activated in the same way as Alarm2 except for codes 12 1 (Codes cannot be selected for Alarm1.) When any code of is selected for Alarm 2, Alarm 2 is activated and Alarm 1 is canceled. "Alarm hysteresis", "Delay time", and "Alarm latch" can be selected in Alarm 2 settings. The display of the parameter in which the alarm value is set varies depending on the alarm operation types. [Note] Alarm set value and alarm operations Alarm set value (AL) Plus setting Minus setting [Note] Since the alarm set value may change after changing the alarm operation types, be sure set the alarm set value again. After changing the alarm operation types, power the PXR off, and then on. Setting code 0 indicates "No alarm". Related parameters:, (page 53), (page 54), (page 16), (page 49) Absolute value Upper limit Lower limit AL 0 AL 0 Disabled Disabled Deviation value Upper limit Lower limit AL AL AL AL [Setting example] Changing the alarm type of Alarm 2 from upper-limit deviation the upper-limit deviation with hold Press and hold the SEL key for three seconds. will be displayed on the display. Press the key display. The current setting ( ) flashes on the display. Press the key display. will sp flashing and will be registered for. After that, the controller will operate with Alarm 2 of upper limit deviation with hold. If you want display the operation status, press and hold the SEL key for two seconds. 40