Please read the section “Safety Warnings” thoroughly before using. Safety precautions must be taken by every
user to prevent accidents. Failure to co mply with the instructions contained in this manual may reduce the safety
of the instrument.
The safety requirements are classified into “Warning” and “Caution” according to the following interpretations:
WARNING
CAUTION
Mishandling may lead to serious injury or death.
Mishandling may result in personal injury or damage to the
property.
BASIC INSULATION, SUPPLYMENTARY INSULATION, or
REINFORCED INSULATION
4) Maximum Voltage line to neutral
300Vac rms or 300Vdc
Installation and wiring
►This equipment is intended to be used under the following conditions.
400V DC/400V AC, 1A T(Time-Lag) (DC/AC24V)
►If accessible Safety Extra Low Voltage (SELV) circuits are to be connected to Signal input terminal, SSR
drive output terminal, Current output terminal or Communication (RS485) terminal, ensure to provide a basic
insulation between the SELV circuits and these terminals. For example, use transformer which has a basic
insulation or higher degree of insulation.
If accessible Safety Extra Low Voltage (SELV) circuits are to be connected to Communication (RS-485)
terminal, be sure to provide a basic insulation between these terminals.
For example, use a RS-485/232 converter which has a basic insulation.
The basic insulation requires a clearance at least 1.5 mm and a creepage of at least 3.0 mm.
Failure to maintain these minimum distances would invalidate the UL61010/EN61010 safety approval.
► For 24V DC/AC power supply model, if the equipment is connected to the Safety Extra Low Voltage (SELV)
circuit, a basic insulation must be provided between the SELV circuit and the power input terminals.
Otherwise, the power input terminals must be connect to Extra Low Voltage (ELV) circuit so as to prevent the
electric shock.
► For CT input, use Current Transfer which has specification as shown below in order to prevent the electric
shock and spread of fire.
According to IEC 61010-1
3) Required level of Insulating
2
Page 5
About safety standard
Please observe the following instructions to meet the requirements of safety standard. Failure to observe
these instructions violates safety standards.
(This product is not safety equipment.)
● Install a recommended fuse, which is specified in the instruction manual, between the external main power (Mains
Circuit) and this equipment.
● Do not connect SELV directly to Signal input terminal, SSR Drive output terminal, Current output terminal, or
Communication (RS-485) terminal. Otherwise, it may result in electrical shock.
If accessible Safety Extra Low Voltage (SELV) circuits are to be connected to Signal input terminal, SSR Drive
output terminal, Current output terminal or Communication (RS-485) terminal, ensure to provide a basic insulation
between the SELV circuits and these terminals. For example, use transformer which has a basic insulation or higher
degree of insulation.
If accessible Safety Extra Low Voltage (SELV) circuits are to be connected to Communication (RS-485) terminal, be
sure to provide a basic insulation between these terminals
For example, use a RS-485/232 convert e r which has a basic insulation.
The basic insulation requires a clearance at least 1.5 mm and a creepage of at least 3.0 mm.
● Be sure to install an appropriate external protective circuit to prevent excessive temperature rise etc.
● When performing wiring work, be sure to turn the power off and to wear protection gloves or safety glasses, to
prevent an electric shock.
● Set proper parameter input signals which correspond to each input to be connected.
Be careful not to confuse voltage input with current input, or vice versa.
● Do not use this equipment for the measurement of circuits which falls under measurement categories II, III, or IV.
● Do not use this equipment for measurement of signals to which a voltage over 30 Vr.m.s. or over 60 V DC is applied.
● Be sure to use terminal covers. Before removing a terminal cover, turn off all the power.
►For the above, if voltage exceeds 50Vdc ( called danger voltage), grounding and basic insulation for all
terminals of the equipment and auxiliary insulation for DO outputs are required.
Note that the insulation class for this equipment is as follows. Before installing, please confirm that the
insulation class for equipment meets usage req uirements.
Type PXF4
3
Page 6
Type PXF5/9
● In cases where damage or problems with this equipment may lead to serious accidents, install appropriate external
protective circuits.
● As this equipment does not have a power switch or fuses, install them separately as necessary. If you install a fuse, be
sure to place it between the main power switch and this equipment.
(Main power switch: 2-point Breaker, fuse rating: 250V 1A)
● A power switch or a circuit breaker should be installed within the power supply facility.
● A power switch or a circuit breaker should be properly installed within easy reach of an operator.
● A power switch or a circuit breaker should be identified as the one for this product.
● Electrical wiring must be made by the qualified personnel only and in accordance with your local and national standards.
● For power supply wiring, use wire equal to 600V vinyl insulation or above.
● To prevent damage and fa i lure of the equipment, provide the rated power voltage.
● To prevent shock and equipment failure, do not turn the power ON until all wiring is complete.
● Before feeding power, confirm that clearance space has been secured to prevent shock and fire with the equipment.
● Do not touch the terminal while the machine is on. Doing so risks shock or equipment errors.
● Never disassemble, convert , m odify or re pair t hi s equipm ent . Doing so ca rries the ris k of abnorm al opera tion, s hock a nd fire .
● Output relays has limited-life. The contact of output relay may stay ON or OFF when it reaches the end of its service life.
Be sure to provide an external protective circuit for safety.
● The factory default setting of this equipment is as follows. Change the setting as necessary so as the equipment to meet
your application.
Please note that the improper settings may result in overheat or unexpected damage. For the details of operation, read
this manual.
Control output 1: heating control
Control output 2 (optio na l): cooling control
Digital input 1 to 5 (optional): no function
● Symbols on the equipment
Please read this instruction manual thoroughly, and use the product accordingly.
Maintenance
● When installing and removing the equipment, turn the power OFF. Failing to do so may cause shock operational errors or
failures.
● Periodic maintenance is recommended for continuous and safe use of this equipment.
● Some components used on this equipment have a limited life and/or may deteriorate over time.
● The warranty period for this unit (including accessories) is three year after the date of manufacture, if the product is used
properly.
4
Page 7
About EMC standard
or it may cause electric jamming. If you use this equipment in home environment, install appropriate measures on the
CAUTION
Cautions on installation
Avoid the following places for installation:
● A place where the ambient temperature may reach beyond the range of from 0 to 50°C while in operation.
● A place with rapid temperature changes, leading to dew condensation
● A place where corrosive gases (sulfide gas and ammonia gas, in particular) or combustible gases are emitted.
● A place with vibration or shock directly. (Vibration and shock may cause output relay malfunction.)
● A place exposed to water, oil, chemicals, steam and/or vapor.
(If the equipment gets wet, there is a risk of electric shock or fire, so have it inspected by the distributor.)
● A place where the unit is exposed to dust, salt air, or air containing iron particles.
● A place where the unit is subject to interference with static electricity, magnetism, and noise.
● A place where the unit is exposed to direct sunlight.
● A place where the heat may be accumulated due to the radiation of heat.
Recommended site condition:
● A plac e where the ambient hum idity during operation is between 45 to 85%RH.
● This equipment is designed as Class A (for industrial environment). Do not use this equipment in home environment,
outside of the equipment.
● Under the requirement of EMC standard, the maximum length of a sensor to be connected to this equipment is 30 m.
Do not connect the sensor longer than 30 m.
Caution on installation on panel
● Attach the included Fixtures (2 pieces) onto the top and bottom of PXF5/9 , and tighten them with a screwdriver. The
clamp torque is approx. 0.15 N·m (1.5 kg·cm) The plastic fixture is designed such that over tightening will cause
left/right cracking to the central area of the Fixtures and hence reduce the torque. Cracking to the central area will not
cause any problems in terms of usability of the equipment as is.
(However, do exercise caution in not applying too much torque because the casing is made of plastic.)
● The front of this equipment is waterproof in compliance with NEMA-4X standards (IP66-equivalent). However,
regarding waterproofing between the equipment and the panel, use the included packing to ensure waterproofing and
attach it according to the guidelines below. (Incorrect attachment may cause the equipment to lose its waterproof
capabilities.)
(1)As shown in Fig. 1, insert the panel after attaching the packing to the equipment case.
(2)As shown in Fig. 2, tighten the fixture screws so that no gaps can remain between the equipment face, the packing
and the panels. Once finished, confirm that there are no changes in shape such as displaced or improperly-fitted
packing, etc. as shown in Fig. 3.
● Please exercise caution if the panel strength is weak and gaps develop between the packing and the panel, as this will
result in the loss of its waterproofing capabilities.
5
Page 8
PXF4
● In order not to hamper heat radiation, do not block the sides of the equipment.
● For PXF9, please attach the Fixtures to the attachment holes in the center of the main unit.
Mounting on vertical plane (in horizontal position)
PXF5/9
Mounting on vertical plane (in horizontal position)
● Do not block the air vents on the upper part of the terminal.
Cautions on wiring
● For thermocouple input, use the designated compensation lead; for resistance temperature sensors, use wires with small
lead wire resistance and without any resistance difference among the three wires.
● To avoid noise conductor effects, do not use input signal wires in close proximity with electric power lines or load lines.
● Use the input signal lines and output signal lines that are separated from each other and are shielded.
● If there is a lot of noise from the power source, adding an insulation transducer and using a noise filter is recommended.
(For example, noise filter: ZMB22R5-11 manufactured by TDK)
Always attach a noise filter to a panel that is grounded securely, and keep the wiring between the noise filter output side
and the measuring equipment power terminal wiring to a minimum length. Please do not attach fuses and switches, etc.
to the noise filter output wiring since doing so will decrease the filter’s effectiveness.
● Twisting the measuring instrument wiring is effective when connecting the wires. (The shorter the pitch of the twist, the
more effective the connection is against noise.)
● When the power is turned on, it takes some time before a contact output starts operation. If using it as a signal to an
external interlock circuit, please couple it with a delayed relay.
Concerning the output relay, connecting the maximum rated load will shorten the relay’s life; so please attach an
auxiliary relay. If the output operation frequency is high, selecting a SSR/SSC drive output type is recommended.
[Proportional cycles] Relay output: 30 seconds or more, SSR/SSC drive output: 1 second or more
6
Page 9
Voltage
Nominal varistor voltage
100 V
240 V
200 V
470 V
PXF5/9 PXF4
● When inductive loads such as magnetic opening/closing equipment, etc. as relay output equipment are connected, use of
a serge absorber is recommended in order to protect the connection points against opening/closing surges and to ensure
long-term use.
Recommended specification for surg e absorber
Key Operation Cautions/Error Operations
● The alarm function does not work properly when an error takes place unless the settings are made correctly. Always
verify its setting before operation.
● If the input wiring breaks, the display will read "UUUU" or "LLLL". When replacing the sensor, always turn the power
OFF.
Others
● Do not wipe the equipment with organic solvents such as alcohol or benzene, etc. If wiping is necessary, use a neutral
cleaning agent.
● Do not use mobile phones near the instrument (within 50 cm). Otherwise malfunction may occur.
● Trouble may occur if the equipment is used near a radio, TV, or wireless device.
● Do not turn off the power right after you change the setting. If you turn off the power after setting change, be sure to wait
for a few seconds before turning it off, so that the changed values can be stored on the nonvolatile memory.
7
Page 10
Contents
PLEASE READ FIRST ································································································· 1
Contents ······················································································································· 8
For Proper Use ············································································································· 9
Model Specifications ····································································································· 10
1 Part names and functions ············································································· 14
Digital characters ······························································································· 18 1-1
Selecting control method
Controlling through auto-tuning
Parameter setting
"3-7 CH6 SET (Setup parameters)" (page 114)
"3-2 CH1 PID (Control parameters)" (page 41)
"AT Auto tuning (005)" (page 33
)
Wait 30 minutes for the controller to be stabilized thermally. Operations such as
measurements should be started after the equipment has been energized at least for 30
9
Page 12
Model Specifications
<PXF4>
10
Page 13
11
Page 14
<PXF5/9>
12
Page 15
13
Page 16
<
Operation keys
Indicators
USER key
assigned function. (No function is allocated at the
selection mode, or setup mode to return to PV/SV
ss this key once in PV/SV display to move to
Press and hold this key in setup mode to move to
Press this key once in channel selection mode to move
to move to
Press this key once in parameter selection submode of
Press this key once in parameter editing submode to
save the change and return to parameter selection
Use the this key to select the digit when changing
Use the this key to change SV value when in PV/SV
During in operation control mode, channel selection
mode, or setup mode, this key allows you to change
During in parameter setting mode, this key allows you
Shows set value. Shows parameter set point when in
1 Part names and functions
This section describes the names and functions of each part of the front panel. The front panel has the PV and
SV displays, the status indicator lamps, and the setting keys, etc. Their functions are explained below. Please
read and understand them before using the PXF.
For details about the setting of parameter s, see Chapter 2.
PXF4>
• Pr ess this key once in PV/SV display to switch between
SV display and MV display.
• Press and hold this key in PV/SV display to start the
factory.)
• Press this key once in operation control mode, channeldisplay.
SEL key
• Pre
operation control mode.
•
channel selection mode.
•
to setup mode.
• Press and hold this key in setup mode
channel selection mode.
•
setup mode to enter parameter editing submode.
•
submode.
< key
•
values.
˅˄ key
•
screen.
•
parameters to be displayed.
•
to change parameter settings.
(1) Indicates process value (PV)
Shows parameter name when in parameter setting.
(2) Set point (SV)
parameter setting.
(3) Screen No.
Shows screen No. when in parameter setting.
(4) OUT1 indicator
Lights during control output 1 is ON.
(5) OUT2 indicator
Lights during control output 2 is ON.
(6) EV 1, EV 2, EV 3 indicators
Lights during digita l output 1 to 3 are ON.
(7) STBY indicator
Lights during standby .
(8) MANU indicator
Lights during manual mode.
(9) Lock indicator
Lights during key lock.
(10) No. indicator
Lights during a screen No . is displayed.
(11) RUN/HOLD/END indicators
Lights during ramp/soak operation.
(12) AT indicator
Lights during auto tuning.
(13) MV indicator
Lights during MV is displ a y ed on SV display.
(14)°C/˚F indicator
Shows the temperature unit under use.
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(The factory set function for this key is switching
(The factory set function for this key is switching
between start/stop of auto-tuning.)
USER + ˄ key
• Press and hold this key in PV/SV display to start the
assigned function.
between RUN and standby.)
USER + ˅ key
• Press and hold this key in PV/SV display to start the
assigned function.
(15) A/%/kW/h indicator
Shows the unit under use for the values displayed on SV
display.
15
Page 18
Operation keys
Indicators
assigned function. (No function is allocated at the
e, or setup mode to return to PV/SV
Press this key once in PV/SV display to move to
Press this key once in parameter selection submode of
Press this key once in parameter editing submode to save
Use the this key to change SV value when in PV/SV
During in operation control mode, channel selection
mode, this key allows you to change
Shows set value. Shows parameter set point when in
Shows the temperature unit under use.
<PXF5/9>
USER key
• Pr ess this key once in PV/SV display to switch between
SV display and MV display.
• Press and hold this key in PV/SV display to start the
factory.)
• Press this key once in operation control mode, channelselection mod
display.
SEL key
•
operation control mode.
• Press and hold this key in setup mode to move to channel
selection mode.
• Press this key once in channel selection mode to move to
setup mode.
• Press and hold this key in setup mode to move to channel
selection mode.
•
setup mode to enter parameter editing submode.
•
the change and return to parameter selection submode.
< key
• Use the this key to select the digit when changing values.
˅˄ key
•
screen.
•
mode, or setup
parameters to be displayed.
• Dur ing in parameter setting mode, this key allows you to
change parameter settings.
(1) Indicates process value (PV)
Shows parameter name when in parameter setting.
(2) Set point (SV)
parameter setting.
(3) Screen No.
Shows screen No. when in parameter setting.
(4) OUT1 indicator
Lights during control output 1 is ON.
(5) OUT2 indicator
Lights during control output 2 is ON.
(6) EV 1, EV 2, EV 3 indicators
Lights during digita l output 1 to 3 are ON.
(7) STBY indicator
Lights during standby .
(8) MANU indicator
Lights during manual mode.
(9) Lock indicator
Lights during key lock.
(10) No. indicator
Lights during a screen No . is displayed.
(11) RUN/HOLD/END indicators
Lights during ramp/soak operation.
(12) AT indicator
Lights during auto tuning.
(13) MV indicator
Lights during MV is displa yed on SV display.
(14) °C/˚F indicator
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Page 19
et function for this key is switching
(The factory set function for this key is switching
between start/stop of auto-tuning.)
USER + ˄ key
• Press and hold this key in PV/SV display to start the
assigned function.
(The factory s
between RUN and standby.)
USER + ˅ key
• Press and hold this key in PV/SV display to start the
assigned function.
(15) A/%/kW/h indicator
Shows the unit under use for the values displayed on SV
display.
(16) Bar graph
Shows MV.
17
Page 20
Digital characters 1-1
The following tables provide correspondence between digital characters used for the display of the controller
and alphanumerical characters. (See the following table for details.)
18
Page 21
Operation mode
You can check the output value (MV) and the amount of electric power by switching the screen.
Operation control mode
In this mode you can put the device to standby or change the alarm set value.
Channel selection mode
In this mode you can select the parameter channel to be displayed.
Setup mode
In this mode you can setup each parameter. This mode includes the parameter selection submode and the
˄˅
values by using ˄˅ keys.
2 Basic Operation
Basic operation 2-1
The below figure illustrates the mode transition and the key operations.
In this mode the normal operation is performed . The process value (PV) and the set value (SV) are displayed.
The device starts in this mode when you turn on the power. You can change the set value (SV) in this mode.
parameter editing submode, which can be swit ched by SEL key. In the parameter selection submode, you can
switch between parameters by using
keys. In the parameter editing submode, you can change parameter
• SV must be within the range between SVL (lower limit) and SVH (upper limit) which belong to Pid
parameter.
Related parameters: SVL (page 50), SVH (page 50)
[Setting example] Changing the SV from 250°C to 1195°C __________________________
Display Operating procedure
245
250
245
1195
PV
SV
PV
SV
1. Check that the PV/SV display is shown.
2. Press
˅ key to change SV to “1195”.
○˄○
3. Press the SEL key to save the change.
(The change will be saved after three seconds, even if you do not
press any key.)
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Page 23
Parameters List 2-3
The following explains each channel p ar ameter.
• The range of the parameters in the shaded area indicat es the industrial values. When you change the PV input
lower limit (Pvb), PV input upper limit (PvF), or decimal place position (Pvd), reconfigure all the industrial
values.
• When the parameter that has [RESET] on its Remarks column is changed, turn off the power once, and then
re-start the controller.
Allows you to switch between operation mode and standby mode.
The following items used during standby can be set beforehand.
• Control output (-5.0 to 105.0% )
• Alarm output (ON/OFF)
• Transfer output (ON/OFF)
You can set the detail of standby mode in "Standby mode".
setting from on to off.
• If the instrument is put into standby during auto tuning, the auto tuning is canceled.
To complete auto-tuning, turn standby mode off and restart auto tuning.
• When the controller switches to standby mode, the ON delay timer will be reset. It
[Setting example] Switching to Standby mode ____________________________________
Display Operating procedure
245
250
MAN
oFF
StbY
oFF
STBY
StbY
PV
SV
PV
SV
PV
SV
PV
1. Check that the PV/SV display is shown.
2. Press the SEL key to move to operation mode.
3. Use the
˅ keys to change MAN to StbY.
○˄○
4. Press the SEL key to enter StbY mode.
(The lower part of the screen begins to blink.)
5. Use the
˅ keys to change oFF to oN.
○˄○
6. Press the SEL key to save the change.
SV
oN
Now the controller is in the Standby Mode.
(STBY indicator turns on.)
Allows you to switch between Ramp/soak states.
You can select among the following three state.
• oFF (stop): Ramp/soak is stopped.
• RUN (start): Ramp/soak starts.
• HLd (hold): Ramp/soak hold. To release the hold, select "RUN" again.
The parameter information changes automatically depending on the ramp/soak state.
• GS (Guaranty soak ON): Guaranty soak is activated and PV is out of guaranty soak setting range.
•
ENd (end): Ramp/soak has finished.
During ramp soak operation, one of RUN, HOLD, or END indicators light according to the state of ramp soak.
During ramp soak operation, on-going step No. and "r" (ramp) or "-" (soak) are displayed on the screen No. area
of operation screen (PV/SV screen).
For example, "2r" appears during step 2 ramp, and "2-" during step 2 soak.
Related parameters: PRG (CH3) (page 70)
[Setting example] Ramp Soak command is carried out _____________________________
Running auto-tuning automatically sets the optimal PID.
• Setting range
There are the following two types in au to-tuning.
Normal type Performs ON/OFF operation with SV as the
baseline to calculate PID.
calculate PID. Use the this setting if you
want to prevent overshoot.
• When auto tuning is normally completed, the auto matically set PID parameter value is maintained even if the
power is turned off. If the power is turned off during auto tuning, the auto-tuning function is invalidated with
PID parameters unchanged. In such a case, start again from the beginning.
• Since ON-OFF operation (2-position operation) is performed during auto tuning, PV may fluctuate greatly
depending on the process. Do not perform auto tuning for the processes where large fluctuation of PV is not
allowed. Do not perform auto tuning, either, for the processes where the response is qui ck, such as pressure
control or flow rate control.
• If auto tuning does not end after 4 hours, it means that tuning may not be completed successfully. Check
input/output wiring and parameters such as control output (forward, reverse) and input sensor type.
• When you change SV or PV input type, or when operation does not work properly due to the change in
operating conditions, perform auto tuning again.
• You can run auto-tuning when the control type is set to "fuzzy" or "PID2".
• You cannot run auto-tuning during manual mode.
• When you are using the PID selection function, the auto-tuning result for the selected PID group is stored.
• Auto tuning is forcibly terminated when SV is changed by the ramp soak function, remote SV function, or
ramp SV.
Note:
Since ON/OFF control is performed during auto-tuning, overshoot against the SV may occur. To
reduce the overshoot, execute the auto-tuning with [L-on] (Low PV).
Related parameters: CtRL (CH7) (page 153)
Allows you to easily switch SV among the foll owing.
• Setting range: LoCL, SV1, SV2, SV3, SV4, SV5, SV6, SV7, di
To use this function, you need to configure SVs (SV1 to SV7) in the PID palette parameters. It is recommended
to activate the ramp SV before changing SV number so that control disorders can be reduced.
Related parameters: RMP (CH7) (page 148)
Note:
Changing the SV number will not change the control parameters (PID, etc).
When changing the SV value with the front panel key, do not change the "Svn" parameter via
communication. Otherwise, the changed SV may not be stored correctly.
[Setting example] Changing SV Number ________________________________________
Allows you to easily switch PID No. among those you configured in the PID palette parameters.
This allows you to change the PID according to the change of SV or control target.
Prevents SV parameters from being changed.
The following three settings are available:
The channel menu can be displayed even when key lock is active.
Related parameters: Accidental operati on can also be prevented with a password. See CH13 Password
parameters (page 194).
Allows you to set PID (Proportional Band, Integration Time, Differential Time).
Setting range
The following control methods are avail able with PID settings.
(2-position control)
Running auto-tuning automatically sets the optimal PID. See "AT Auto tuning (005) " (page 33)
The PID settings configured by auto-tuning are generally considered to be optimal settings. If you want to
change the responsiveness, adjust PID man ually.
Generally, control becomes unstable when “P” is set too small. On the other hand, setting it too big makes the
response slow.
Set the hysteresis for the ON/OFF (2-position) control with the parameter “hyS”.
Note
Do not perform auto tuning during ON/OFF control.
this function when you want to run simple control without worrying about the
P, I, and D should be adjusted to optimal values for the control target, although Pid
can be activated with P ≠ 0, I ≠ 0, and D ≠ 0. In normal situations, run auto-tuning
In principle, P control generates offset and PV does not agree with SV. In this case,
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[Setting example] Setting P = 10.0%, I = 100sec., D = 20sec. ________________________
Display Operating procedure
P
i
PV
SV
PV
SV
PV
SV
SV
PV
245
250
CH1
Pid
5.0
10.0
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
5. Use the
˅ keys to change 5.0 to 10.0.
○˄○
6. Press the SEL key to save the change.
7. Use the
˅ key to display i(integration time).
○
8. Press the SEL key.
d
SV
SV
PV
(The first digit of the lower part of the screen begins to blink.)
9. Use the
˅ keys to change 240 to 100.
○˄○
10. Press the SEL key to save the change.
11. Use the
˅ key to display d(differential time).
○
240
100
12. Press the SEL key.
60.0
20.0
SV
SV
(The first digit of the lower part of the screen begins to blink.)
13. Use the
˅ keys to change 60.0 to 20.0.
○˄○
14. Press the SEL key to save the change.
15. Press the key to return to the PV/SV display.
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• Frequency of output relays is high, so lifespan becomes short.
Large hysteresis
• Low-precision control
• Frequency of output relays is low, so lifespan is relatively long.
Allows you to set the hysteresis for ON/OFF (2 position) control
• Setting range: 0.0 to 50.0% FS
The controllability varies with the size of the hysteresis.
Small hysteresis • High-precision control
The relationship between SV and hyster esis in normal and reverse operation is shown below.
• During ON/OFF control, the i and d settings do not affect control.
• If the hysteresis width is narrow, and PV and SV are near ly equal, the output may frequently switch on and
off. Note that it may affect the life of the contact.
[Setting example] Changing the hysteresis range from 25%FS to 30%FS ______________
Display Operating procedure
P
25
30
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH1
Pid
5.0
HYS
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Use the
˅ keys to change P to HYS.
○˄○
5. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
6. Use the
˅ keys to change 25 to 30.
○˄○
7. Press the SEL key to save the change.
8. Press the key to return to the PV/SV display.
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Page 46
Cooling proportional band = (Proportional band P/2) x Coefficient
Allows you to set the proportional band coefficient for cooling.
• Setting range: 0.0 to 100.0
The relationship between heating control output and cooling control output is outlined below.
Cooling proportional band is set after the optimal value for heating proportional band is set.
The following example shows how the cooling proportional band is calculated.
Example: Calculating the coefficient that will give a cooling proportional band of 10% when proportional
band(P) = 50% with full scale cooling
10% = (50%/2) x Coefficient
Coefficient = 0.4
To set cooling as a secondary operation, set " C ool" to 0.0.
With two outputs set as P=0.0 and Cool=0.0, heating and cooling outputs become ON/OFF actions (3-position
control). In this situation, the ON/OFF hysteresis is 0.5% FS (fixed) for heating and cooling outputs. The point
of operation for the heating output can be shifted with the “HYS” parameter. The point of operation for the
cooling output can be shifted with the “db” parameter.
The relationship between SV and hyster esis in normal and reverse operation is shown below.
44
Page 47
[Setting example] Changing cooling proportional band coefficient from 1.0 to 2.5 _________
Display Operating procedure
P
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH1
Pid
5.0
CooL
1.0
2.5
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Use the
˅ keys to change P to Cool.
○˄○
5. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
Shifts the cooling proportional band against the set value as follows.
"db" is called dead band when the value is positive, and overlap band when the value is negative.
• Range: -50% to 50%
"db" is measured as a percentage of MV and can be converted to a percentage deviation by the following
formula.
DB [%] = deviation x 100/P [%]
Example: Proportional Band (P) = 5.0%, with a desired dead band of 1% deviation from SV:
DB [%]= 1.0 ×100/5.0 = 20 [%]
Dead band = 20 (%)
[Setting example] Setting Dead band to 1.5% ____________________________________
Display Operating procedure
P
PV
SV
PV
SV
PV
SV
PV
245
250
CH1
Pid
5.0
db
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Use the
˅ keys to change P to db.
○˄○
5. Press the SEL key.
0.0
1.5
SV
SV
(The first digit of the lower part of the screen begins to blink.)
When using contact output and SSR drive output with PV input inside the proportional band, output will switch
between ON and OFF at regular intervals.
• These intervals are called proportional cycl es. OUT1 and OUT2 can be set separately.
Setting range: 1 to 150
The following are the recommended settings for each control output.
output
output
Note:
• TC2 is only valid when there are dual outputs.
• t cannot be set for current output or voltage output. Approx.: 1 sec
also shorten the lifespan of the contact points and operating device. Keep a balance between
controllability and controller lifespan when adjusting the proportional cycles.
is working properly.
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Page 54
[Setting example] Setting OUT1 proportional cycle to 60 sec _________________________
Display Operating procedure
245
250
CH1
Pid
5.0
tC1
P
PV
SV
PV
SV
PV
SV
PV
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Use the
˅ keys to change P to tC1.
○˄○
5. Press the SEL key.
SV
30
SV
60
(The first digit of the lower part of the screen begins to blink.)
These coefficients are used to suppress overshoot generated in PID control.
The 2-degrees-of-freedom PID system of this inst r ument adopts set value (SV) filter method, which is effective
in suppressing overshoot at the time of setting change or start-up.
If ALPA (α) is set to 100.0%, and bEtA (β) to 0.0%, ordinary PID control (1 degree of freedom PID) is
performed.
Adjust ALPA (α) and bEtA (β) as follows.
(1)Set ALPA (α) to 40.0%, and bEtA (β) to 100.0%. (Factory default setting)
(2)Perform control and check responsiveness (overshoot volume).
If overshoot cannot be improved in this stage, adjust ALPA (α) and bEtA (β), following the definition listed
in the following table.
Generally, ALPA (α) does not require adjustment. Therefore, it is recommended to use the instrument with
ALPA (α) set to 40.0%.
Setting range
[2 degrees of freedom PID block diagram]
Note:
Changing ALPA (α) should be performed during manual mode.
Before changing ALPA (α) setting, set bEtA (β) to 0.0%. First, change ALPA (α) setting, and then set
bEtA (β) to desired value. Improper procedure may cause output (target value) to increase temporarily,
thus posing danger.
The purpose of this function is to suppress overshoot generated in ordinary PID control. Overshoot
may not always be eliminated.
55
Page 58
[Setting example] Setting the 2-degrees-of-freedom coefficient α to 50.0% ______________
Display Operating procedure
245
CH 1
ALPA
250
Pid
P
5.0
40.0
50.0
PV
SV
PV
SV
PV
SV
PV
SV
SV
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the SEL key to enter CH1 (PID parameters).
P is displayed.
4. Use the
˅ keys to change P to ALPA.
○˄○
5. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
6. Use the
˅ keys to change 40.0 to 50.0.
○˄○
7. Press the SEL key to save the change.
8. Press the key to return to the PV/SV display.
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Page 59
PID switching point 1 to 7
CH2 PLT (PID palette parameters) 3-3
PID palette parameters are used to register SVs, P I Ds, and other control parameters. Up to seven sets of SVs and
PIDs can be stored, and you can toggle among them by simply selecting their numbers.
This is very useful when operating conditions change frequently.
The palette menu (CH2) consists of the following function blocks:
To change the SV No. or PID No., refer to "S V selection" (page 36), "PID selection" (pag e 37).
Up to seven SVs (SV1-SV7) can be recorded. Recorded SVs can be invoked by the SV selection ("Svn")
parameter in the operation menu.
Setting range: SV lower limit (SVL) to SV upper limit (SVH) %FS
It is recommended to activate the ramp SV b ef ore changing SV number, so that control diso rders can be
reduced.
Related parameters: "SV selection" (page 36)
[Setting example] Setting SV1 to 300°C _________________________________________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
300
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
6. Use the
˅ keys to change 0 to 300.
○˄○
7. Press the SEL key to save the change.
8. To set SV2 to SV7, press the
steps 5 to 7.
˅ key in the step 4 and then repeat
○
9. Press the key to return to the PV/SV display.
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Proportional band (P):
0.0 to 999.9%
Integration time (I):
0 to 3200 seconds
Differential time (D):
0.0 to 999.9 seconds
P1 to P7 Proportional band (101 to 161)
i1 to i7 Integration time (102 to 162)
d1 to d7 Differential time (103 to 163)
These parameters allows you to configure PID. Up to seven types of PID (palettes 1 to 7) can be recorded.
Recorded PIDs can be called from selected PID number ("PLN1") in the operation menu CH1.
• Setting range
Related parameters: "Proportional Band, Integration Time, Differential Time (CH1)" (page 41)
When a PID No. is changed, the following parameters change to match it.
• ON/OFF control hysteresis
• Cooling proportional band
• Dead band
• Output convergence value
• Anti-reset windup
• Normal/reverse operation
Running auto-tuning will automatically set to the PID No. selected in the PID selection parameter.
Note:
• For safety, make sure to turn off the power before switching the normal/reverse operations by using
the PID selection function. (Do not switch between normal and reverse while operation.)
• If "(PID No. +1, SV No. +1(increment))" function is executed under the "PID No. ≠ SV No.", PID No.
and SV No. is automatically set to the same value.
• PID is switched per palette. You cannot combine the values of PID among palettes.
59
Page 62
[Setting example] Setting P = 10.0%, I = 100 sec., D = 20 sec. _______________________
Display Operating procedure
245
250
CH2
PLt
SV1
10.0
0
P1
PV
SV
PV
SV
PV
SV
PV
SV
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to P1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
PV
i1
100
d1
20
SV
PV
SV
7. Use the
˅ keys to change 5.0 to 10.0.
○˄○
8. Press the SEL key to save the change.
9. Use the
˅ key to change 100 to 20.
○
10. Repeat the same steps to set Pid2 to Pid7.
11. Press the key to return to the PV/SV display.
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Page 63
HYS1 to HYS7 ON/OFF control hysteresis (104 to 164)
This parameter allows you to set the hysteresis width for the ON/OFF control. Up to seven types of hysteresis
(for palettes 1 to 7) can be recorded. Recorded hysteresis can be called by PID selection ("PLN1") in the
operation mode.
• Setting range: 0 to 50% FS
Related parameters: "ON/OFF control hysteresis" (page 43)
[Setting example] Setting the ON/OFF control hysteresis 1 to 3°C _____________________
Display Operating procedure
0
1
3
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
HYS1
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to HYS1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use the
˅ keys to change 1 to 3.
○˄○
8. Press the SEL key to save the change.
9. Repeat the same steps to set HYS2 to HYS7.
10. Press the key to return to the PV/SV display.
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Page 64
CoL1 to CoL7 Cooling Proportional Band (105 to 165)
Allows you to set the cooling proportional band when dual outputs are selected. Up to seven types of cooling
proportional band (for palettes 1 to 7) can be recorded.
Recorded cooling proportional band can be called from PID selection (“PL1N”) in the operation mode.
• Setting range: 0.0% to 100.0%
Related parameters: "Cooling Proportional Band Coefficient" (p. 45)
[Setting example] Setting the Cooling proportional band 1 to 5.0% ____________________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
CoL1
1.0
5.0
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to CoL1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
Allows you to set the dead band when dual outputs are selected. Up to seven types of dead band (for palettes 1
to 7) can be recorded.
Recorded dead band can be called from PID selection (“PLN1”) in the operation mode.
• Setting range: -50.0% to 50.0%
Related parameters: "Dead Band" (page 46)
[Setting example] Setting Dead band 1 to 7.0% ____________________________________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
db1
0.0
7.0
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to db1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use the
˅ keys to change 0.0 to 7.0.
○˄○
8. Press the SEL key to save the change.
9. Repeat the same steps to set db2 to db7.
10. Press the key to return to the PV/SV display.
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Page 66
bAL1 to bAL7 Output convergence value (107 to 167)
Allows you to set the anti-reset windup. Up to seven types of anti-reset windup (for palettes 1 to 7) can be
recorded.
Recorded anti-reset windup can be called f r om PID selection (“PLN1”) in the operation mode.
• Setting range: 0.0% to 100.0%
Related parameters: "Anti-reset windup" (page 48)
[Setting example] Setting the anti-reset windup 1 to 50 FS ___________________________
Display Operating procedure
0
50
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
AR1
100
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to AR1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
Allows you to set the normal/reverse setting. Up to seven types of normal/reverse settings (for palettes 1 to 7)
can be recorded.
Recorded normal/reverse settings can be called from PID selection (“PLN1”) in the operation mode.
Related parameters: "Normal/Reverse" (C H1) (page 49)
[Setting example] Setting the normal/reverse 1 to heat (reverse)/ cool (normal) __________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
REV1
RV__
RVNo
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to REV1.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use the
˅ keys to change "RV" to "RVNo".
○˄○
8. Press the SEL key to save the change.
9. Repeat the same steps to set REV2 to REV7.
10. Press the key to return to the PV/SV display.
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Page 69
REF1 to REF7 PID palette switching point (170 to 176)
Allows you to set the maximum PID number that can be selected via the USER key.
• Setting range: Pid1 to Pid7, LoCL, di
Related parameters: "User key assignment" (CH 7 ) (page 141)
[Setting example] Setting the max. PID selection number to PID6 _____________________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH2
PLt
SV1
PL1M
Pid7
Pid6
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH2 (PID palette parameters).
○
4. Press the SEL key to enter CH2 (PID palette parameters).
SV1 (set value) is displayed.
5. Use the
˅ keys to change SV1 to PL1M.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use the
˅ keys to change "Pid7" to "Pid6".
○˄○
8. Press the SEL key to save the change.
9. Press the key to return to the PV/SV display.
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Page 72
CH3 PRG (Ramp soak parameters) 3-4
This function automatically runs according to SVs and the times for the SV changes configured previously.
You can choose up to 64 steps for SV setting and 14 types of operation patterns.
• Ramp: Changing SV towards a target SV
• Soak: Maintains a SV
The ramp/soak parameters (CH3) consists of the following function blocks.
Allows you to set the time units for Ramp/soak operation.
• Setting range: HH : MM(hour:min) MM : SS(min:sec)
Note:
Time units can not be set separately for each step.
All steps use the same unit of time.
[Setting example] Setting the time unit to MM:SS __________________________________
Display Operating procedure
14
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH3
PRG
PtN
tiMU
HH:MM
MM:SS
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH3 (Ramp soak p ar ameters).
○
4. Press the SEL key to enter CH3 (Ramp soak parameters).
PtN (Ramp soak operation pattern) is displayed.
5. Use the
˅ keys to change PtN to tiMU.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Press the
˅ keys to change HH:MM to MM:SS.
○˄○
8. Press the SEL key to save the change.
9. Press the key to return to the PV/SV display.
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Page 75
SV
SV lower limit (SVL) to SV upper limit (SVH) %FS
Ramp time
00:00 to 99:59 (hour:min/min:sec)
Soak time
00:00 to 99:59 (hour:min/min:sec)
SV-1:50
SV-2:200
SV-3:100
TM1r:0.10
TM2r:0.00
TM3r:1.00
TM1S:0.05
TM2S:0.00
TM3S:0.75
SV-1 to SV64 Ramp soak seg1 SV1 to seg64 SV64 (202 to 391)
tM1R to t64R Ramp soak seg1 ramp time to seg64 ramp time (203 to 392)
tM1S to t64S Ramp soak seg1 soak time to seg64 ramp time (204 to 393)
This function guarantees the soak ti me. Soak time is counted down only when PV is in the certain temperature
range.
As seen in the figure below, only the sum of the shaded areas is counted as soak time. The operation moves onto
the next step when the total soak time has reached the specified soak time.
Setting range:
Guarantee soak
77
Page 80
[Setting example] Setting guaranty soak to ON and upper/lower limits to 5°C ____________
Display Operating procedure
14
oN
0
5
PV
SV
PV
SV
PV
SV
PV
SV
SV
PV
SV
SV
PV
245
250
CH3
PRG
PtN
GSoK
oFF
GS-L
GS-H
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH3 (Ramp soak p ar ameters).
○
4. Press the SEL key to enter CH3 (Ramp soak parameters).
PtN (Ramp soak operation pattern) is displayed.
5. Use the
˅ keys to change PtN to GSo K.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use
˅ keys to change "oFF" to "oN".
○˄○
8. Press the SEL key to save the change.
9. Use
˅ keys to change GSoK to GS-L.
○˄○
10. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
11. Use the
˅ keys to change 0 to 5.
○˄○
12. Press the SEL key to save the change.
SV
0
SV
5
13. Use
14. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
When the ramp soak starts (RUN), this function searches the first point where the measurement value (PV) and
the program pattern match, and starts operation at that point.
If the measurement value does not match the pattern as with (3), the normal operation starts.
Setting range: oN (PV start on), oFF (PV start off)
[Setting example] Setting PV start to ON _________________________________________
Display Operating procedure
14
oN
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH3
PRG
PtN
PVSt
oFF
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH3 (Ramp soak p ar ameters).
○
4. Press the SEL key to enter CH3 (Ramp soak parameters).
PtN (Ramp soak operation pattern) is displayed.
5. Use the
˅ keys to change PtN to PVSt.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use
˅ keys to change "oFF" to "oN".
○˄○
8. Press the SEL key to save the change.
9. Press the key to return to the PV/SV display.
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Page 82
RES:
Does not operate ramp soak.
CoN:
Resumes the operation from the status of the time at which power is
turned off. (It can restore the state to five minutes before maximum. )
This parameter specifies the ramp soak operat ion when the power is restored after being interrupted due to
power outage or other reasons.
Setting range
Note:
Do not change this parameter during the ramp soak operation. Be sure to set “PRG” = “oFF” before
changing the parameter.
[Setting example] Setting the restore mode so that the device resumes the operation _____
Display Operating procedure
14
PV
SV
PV
SV
PV
SV
PV
SV
SV
245
250
CH3
PRG
PtN
CoNt
RES
CoNt
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Press the
˅ key to access CH3 (Ramp soak p ar ameters).
○
4. Press the SEL key to enter CH3 (Ramp soak parameters).
PtN (Ramp soak operation pattern) is displayed.
5. Use the
˅ keys to change PtN to CoNt.
○˄○
6. Press the SEL key.
(The first digit of the lower part of the screen begins to blink.)
7. Use
˅ keys to change "RES" to "CoNt".
○˄○
8. Press the SEL key to save the change.
9. Press the key to return to the PV/SV display.
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PtNM Max pattern selection (400)
PMiN Min patter n s elect ion ( 401)
Displays the number of times that control output relay 1 or 2 has operated.
The number is displayed in increments of 1000.
(For example, when 1 is displayed, it means the relay has operated 1000 times.)
[Setting example] Checking the number of operating times (control relay 1) ______________
Display Operating procedure
0
PV
SV
PV
SV
PV
SV
PV
SV
245
250
CH4
MoN
StAt
oFF
RCN1
1. Check that the PV/SV display is shown.
2. Press and hold the SEL key to display CH1 (PID parameters).
3. Use the
˅ key to access CH4 (Monitor parameters).
○
4. Press the SEL key to enter CH4 (Monitor parameters).
StAt (Ramp soak progress) is displayed.
5. Use the
The number of times that control output relay 1 has operated is
displayed.
˅ keys to change StAt to RCN1.
○˄○
6. Repeat the same steps to check the number of operating times of