Z SERIES
FUZZY CONTROLLER X (48)48mm)
PYX4
DATA SHEET
The PYX is a state-the-art temperature controller offering
enhanced control through the use of fuzzy logic. By employing fuzzy logic the PYX virtually eliminates system
overshoot and effectively supresses fluctuation of the
process variable due to external disturbances. Fuzzy logic
control is the technology of tomorrow offered today.
This controller features universal input circuitry and can
accept signals from all thermocouple types, RTD's, and
current/voltage sources. As well, the PYX-4 gives you the
flexibility of choosing such available features as RS-485
communications, analog retransmission, dual output, heater
break alarm, and loop break alarm, to name a few. The
PYX-4 is the world's first 1/16 DIN fuzzy logic controller
featuring high performance/cost ratio.
FEATURES
1. Industry-first incorporation of fuzzy control in 48 mmsquare controller
An improved response characteristic of controller is
ensured thanks to the fuzzy control exercised while
detecting an overshoot or a difference from the set
temperature value due to a large disturbance.
(Time taken for returning to the set value can be shortened
and temperature variation width can be narrowed.)
2. Universal input
This means that a signal controller can respond to 11 kinds
of thermocouples, resistance bulbs and voltage/current
inputs.
3. Communication function comprised despite small size
(option)
Because the general-purpose interface (RS-485) is
mountable, a centralized monitoring/setting system aided
by a personal computer can readily be configured. Upon
building up a system, the size of this controller as small
as 48 mm square is helpful for saving on the equipment
installation area.
The communication protocol conforms either the Fuji
Electric CC data line or Modbus® RTU.
4. Auto/Manual
Change auto-mode to manual-mode and manual operation
can be done using front panel keys.
5. A wide variety of optional functions
(1) A0 re-transmission (1 point)
A0 is recordable in connection with Fuji's microjet
recorder PHA/PHC.
(2) Programmable alarm (2 points max.)
2 kinds of alarm action can be registered selected
from 16 kinds.
(3) Dual output
Dual control of heating and cooling operations are
allowed
(In this case, communication, A0 and HB (heater
break) functions cannot be added).
(4) Heater break alarm
Use ALM1 or ALM2 output for heater break alarm
(with heater current message-function)
(5) Ramp/soak function
4 ramp/soak-pair patterns are registrable.
(6) External DI function (1 point)
SV (setting value) can be changed a predetermined
value according to external command input (DI).
(7) Remote SV
SV (setting value) can be controlled by external 1 to
5V DC analog input.
6. UL, C-UL approval
Modbus® is a registered trademark of Gould Modicon.
GENERAL SPECIFICATIONS
• Size (H x W x D): 48 x 48 x 115mm
• Kinds of input:
Full multi-input type
•Thermocouple (TC):
J, K, R, B, T, E, S, N, U, WRe5-26, PL-II
• Platinum resistance bulb (RTD):
Pt 100Ω
• Voltage/Current: DC1 to 5V/0 to 5V/4 to 20mA
• Input accuracy: ± 0.5% of full scale, ± 1 digit (± 1°C at
thermocouple)
B (TC) 0 to 500°C : ± 5% of full
R (TC) 0 to 400°C : ± 1% of scale
• Input sampling cycle:
0.5sec
• Control action: Fuzzy control or PID with auto-tuning
• Control output: • Relay contact
• Voltage pulse output (for SSR drive)
• Current output
• Alarm output: 2 points max. (ALM1, ALM2)
• Operation mode:
• Fixed value operation
• Manual operation
• Option
• Re-transmission analog output: 1 point
• Communication function: RS-485
Modbus® or CC-data line protocol.
• Programmable alarms: 2 points max.
• Dual output
• Heater break alarm: 1 point
• Ramp/soak function: 4 ramp/soak-pair
patterns
• Auxiliary digital input: 1 point
• Remote SV input: 1 point
}
FUNCTION AND PERFORMANCE
1. Input
(1) Process variable input signal
EDSX11-133
Date
Jan. 25, 1999
PYX4
Kind of input
Description
Thermocouple J
• Cold junction compensation
K
comprised
R
• Burn-out circuit built in
B
T
E
S
N (Nichrosil-Nisil)
U
WRe5-26(Tangsten rhenium)
PL-II (Platinel)
Resistance
Pt 100
• Burn-out circuit built in
bulb
• Allowable wiring resistance
10Ω max. (per wire)
Voltage
1 to 5V DC
Input resistance 1MΩ min.
0 to 5V DC
Current
4 to 20mA DC
Input resistance 250Ω
Remarks: (1) For 4 to 20mA DC input specification, a 250 Ω resistor is
furnished with the controller delivered.
(2) The 250Ω resistor should be removed for changeover from
4 to 20mA DC to 1 to 5V DC input.
realized according to fuzzy control rules.
(2) PID control with auto-tuning:
Proportional band (P): 0 to 999.9%
(2-position action when P = 0)
Integral time (I): 0 to 3200sec
(Integral action cut when I = 0)
Derivative time (D):
0 to 999.9sec
(Derivation action cut when D = 0)
(Fuzzy control action or PID action with auto-tuning is
selectable by using the front panel key. : CTRL parameter)
(3) Proportional cycle: 1 to 120sec
(4) Control cycle: 0.5sec
3. Output
(1) Control output
– Standard type –
Of the following output types, any one should be
specified.
(a) Input accuracy: ± 0.5% of full scale, ± 1 digit
Cold junction compensation error:
± 1°C
(b) Input range
Relay contact
output
Temperature 0.1°C 0.1°F
Code Temperature
display
range
[°C]
range
[°F]
0
to 150
00
32 to 302 ™ ™
Resist0
to 300
01
32 to 572 ™ ™
ance
0
to 500
02
32 to 932 ™ ™
bulb
×
0
to 600
03
32 to 1112 ™
JIS
Pt100
to 100
04 –50
–58 to 212 ™ ™
IEC
05 –100 to 200 –148 to 392 ™ ™
×
06 –150 to 600 –238 to 1112 ™
×
07 –150 to 850 –238 to 1562 ™
ThermoJ
0
to 400
20
32 to 752 ™ ™
couple
×
J
0
to 800
21
32 to 1472 ™
0
to 400
22
32 to 752 ™ ™
K
×
K
0
to 800
23
32 to 1472 ™
×
×
0
to 1200
24
32 to 2192
K
×
×
0
to 1600
25
32 to 2912
R
×
×
B
0
to 1800
26
32 to 3272
×
27 –199.9 to 200 –328 to 392 ™
T
×
28 –150 to 400 –238 to 752 ™
T
×
E
0
to 800
29
32 to 1472 ™
×
2A –199.9 to 800 –328 to 1472 ™
E
×
×
0
to 1600
2B
32 to 2912
S
×
×
N
0
to 1300
2C
32 to 2372
×
2D –199.9 to 400 –328 to 752 ™
U
×
×
0
to 2300
2E
32 to 4172
WRe5-26
×
×
PL-II
0
to 1300
2F
32 to 2372
Voltage 1 to 5V DC 40 Scale settable within
0 to 5V DC 41
–1999 to 9999
( )
Current 4 to 20mA 40* * Connect 250Ω between terminal
No.9 and 10 in case of current input
DC
ON: DC9 to 24V, 20mA max.
OFF: 0.5V or less
Load resistance : 600Ω or more
Current output 4 to 20mA DC
Allowable load resistance :
600Ω or less
Output accuracy : ± 5.0% of full
scale
Note: (*) Need to be specified in CODE SYMBOL
Kinds of input
(c) Input sampling cycle: 0.5sec
(d) Burn-out
• Control output direction (upper side or lower side) is programmable at occurrence of burn-out.
• For resistance bulb input, detection is allowed even if
any of the three wires is discontinued.
(2) Digital input (option)
Number of input points: 1 point
Spec.
: DC 16V, 15mA
(3) Remote SV input (option)
Input signal: 1 to 5V DC, 1 point
Accuracy: ± 0.5% ± 1 digit
Input sampling cycle: 0.5sec
Input scaling: Allowed
Input filter: First delay (time constant 1sec fixed)
Display of remote mode: LED on front panel
Detection of input signal wire discontinued: None
Changeover Remote/Auto: Bumpless
Normally open
SPST or SPDT
contact (*)
Electrical expected life :
More than 105 operations at
220V AC, 3A (resistive load)
Mechanical expected life :
More than 2 x 107 operations
SSR drive
output
Transistor
output
– Dual output type –
Of the following output types, any one should be specified
for each of the heating and cooling sides.
Relay contact
output
Normally open
SPST contact
Electrical expected life :
More than 105 operations at
220V AC, 3A (resistive load)
Mechanical expected life :
More than 2 x 107 operations
SSR drive
output
Transistor
output
ON: DC9 to 24V, 20mA max.
OFF: 0.5V or less
Load resistance : 600Ω or more
(2) AO re-transmission (option)
• Number of output points: 1 point
• Output data: Any of process variable, set value or
manipulated variable
• Output accuracy: ± 0.5% of full scale
• Kind of output : 1 to 5V DC
• Add-on function: Scaling function
4. Setting and indication
(1)
(2)
(3)
(4)
± 0.5% of full scale, ± 1 digit (± 1°C at TC)
B (TC) 0 to 500°C : ± 5% of full scale
R (TC) 0 to 400°C : ± 1% of full scale
Setting method:
Key operation
Indication method:
Numerical display; Each of PV and SV
independently displayed (PV: Red, SV:
Green)
Status indication:
Control outputs 1 and 2
Alarms 1 and 2
Remote SV
Accuracy:
5. Alarm (option)
2. Control functions
(1) Fuzzy control: The basic actions in PID control have been
2
(1) Upper/lower limit alarm:
Desired kind of alarm is selectable from
Fig. 1 by using the front panel key.
CODE SYMBOLS
Alarm output: 2 points (*)
Relay contact
output
Normally open
SPST contact
220V AC, 1A (resistive load)
1 2 3 4 5 6 7 8
Note: * Alarm output is limited to 1 point when SPDT contact is
specified for control output 1.
PY X 4M
Note: *
Normally open
SPST contact
Description
Front panel size [mm]
48 x 48
4
(2) Heater break alarm
• Discontinuation is detectable only when a signal-phase
heater is used.
• Primary input of current transformer (CT)(*) : 1 to 50A
Relay contact
output
9 10 11 12 13
1 -
Kinds of input
TC/RTD/voltage/current
M
Control output 1
Without
Relay(SPST reverse action)
Relay(SPST direct action)
SSR drive(reverse action)
SSR drive(direct action)
4 to 20mA DC(reverse action)
4 to 20mA DC(direct action)
Relay(SPDT reverse action)
Relay(SPDT direct action)
Y
A
B
C
D
E
F
G
H
220V AC, 1A (resistive load)
The current transformer (CT) need be ordered
separately from this controller (CT is installed
outside the controller)
6. Protection from power failure
Set value, PID parameters, etc. are retained in the
nonvolatile memory unit. Therefore, on power recovery,
control restarts according to the values effective just
before power failure.
Control output 2
Without
Relay(SPST reverse action)
Relay(SPST direct action)
SSR drive(reverse action)
SSR drive(direct action)
Y
A
B
C
D
7. Self-diagnosis
Program error is monitored with a watch dog timer.
8. Operating and storage conditions
(1) Allowable ambient temperature:
–10 to 50°C
(2) Allowable ambient humidity:
90% RH max. (free from condensation)
(3) Storage temperature:
–20 to 60°C
Input range code
See input range table in Page 2
(1) Power supply:100–15% to 240+10%V AC
(2) Power consumption:
About 10VA, 100V AC
About 18VA, 240V AC
(3) Dielectric strength:
1500V AC for 1 minute between power
terminal and:
input terminal
communication terminal
output terminal
relay terminal
500V AC for 1 minutes (at other locations)
(4) Insulation resistance:
50MΩ min. (at 500V DC)
E
F
K
Front panel label
English label in °C
English label in °F
English label in %
Note: *1) Fuji Electric CC data line protocol.
*2) Modbus® RTU protocol.
Code symbol
Option combination
Column "7"
Column "9"
Column "12"
Control
Output2
Alarm
Additional function
A BC D
Dual
function
Yes
Combination
(1) Installation method:
Flush on panel
(2) Enclosure:
Plastic housing
(3) External dimensions (H x W x D):
48 x 48 x 115 mm
(4) Mass {weight}:
Approx. 200 g
(5) Finish color: Munsell N1.5 (black)
(6) External terminal:
Screw terminal M3.5
Additional function
Without
SV selection command input(DI)
4 ramp/soak + start/reset
RS-485(*1)(Fuji original protocol)
RS-485(*1) +4 ramp/soak
RS-485(*2)(Modbus® RTU protocol)
RS-485(*2) +4 ramp/soak
Re-transmission
Re-transmission +4 ramp/soak
Remote SV
Y
P
Q
R
S
M
N
A
B
C
9. Rating specifications
10. Physical data
Alarm function
Without
1 point
2 points
HB detection
HB detection + 1 point
0
1
2
3
4
1
2
3
1 point 2 points HB
4
P
Q
R
S
A
B
C
HB+1 SV
4 ramp/soak+ RS-485 RS-485+
Re-transmission Re-transmission+ Remote
point selection start/reset
4 ramp/soak
4 ramp/soak
SV
Yes
No
No
No
Yes
No
No
No
No
Yes*(1) No
No
No
No
Yes*(2) No
No
No
No
Yes
No
11. Scope of delivery
Controller and mounting bracket
[Item requiring separate order: Current transformer (CT)
for heater break alarm]
No
Yes*(3)
Notes:*(1):This selection is inhibited when Column "6" is "G" or "H"
*(2):This selection is inhibited when Column "6" is "C" or "D" or "E" or "F"
*(3):This selection is valid only when Column "6" is "A" or "B"
3
PYX4
Kinds of alarm
Fig. 1
Function
Action
Nothing
No Alarm
High
absolute
alarm
Alarm Alarm
code group
PV
0
PV
Upper/Lower deviation
alarm
1
Time
ASV
SV
Low
absolute
alarm
Low deviation
alarm with
hold (invert)
High/Low
deviation alarm
with hold
Upper/Lower deviation
alarm
Upper/Lower deviation
alarm with hold
PV
4
PV
5
PV
6
PV
7
SV
Multi-alarming
It allows a maximum of 4 types of alarm settings (among
which, one is dedicated to loop/heater disconnection),
detects those types of alarm individually, and makes logical OR before outputing it to the alarm relay.
(Multi-alarm)
ASV
SV
ASV
SV
ASV
Alarm 2
Setting 2
ASV
Setting 3
PV
8
PV
9
PV
A
PV
B
Alarm 3
A
OR
Alarm relay
SV
Setting 4
(dedicated to loop/
heater break alarms)
ASV
Decision of loop/
heater break alarms
ASV
Operation procedure
SV
(Alarm-1 Type)
ASV SV
ASV
(Alarm-2 Type)
PV
C
Setting 4 Setting 3 Setting 2 Setting 1
SV
selection from
B-group
ASV
High/Low
deviation alarm
with hold (invert)
PV
SV
High
absolute alarm
ASV
SV
Low
absolute alarm
ASV
D
SV
E
SV
F
Nothing
0
Heater break
1
Loop break
2
Loop break +
Heater break
3
Remarks : (1) ASV : Alarm Setting Value
(2)
alarm band
(3) What is "alarm with hold"?
Alarm does not live immedietly even when PV enters into
alarm band.
After PV exits from alarm band and re-enters into alarm
band, alarm fires.
(4) SV High absolute alarm/Low absolute alarm are effect only
with Remote SV function.
each one selected
from A-group
Note:
For the setting in the above figure the result of ORing of the heater break
alarm, "holding"-featured low-limit deviation alarm, and high-limit absolute
alarm is output
B
4
Alarm 1
Setting 1
SV
High/Low
deviation
alarm (invert)
Low
deviation alarm
with hold
3
ASV
High
deviation
alarm (invert)
Low
absolute alarm
with hold
PV
SV
Low
deviation
alarm
High/Low
deviation
alarm
2
ASV
High
deviation
alarm
Low
deviation
alarm (invert)
PV
ASV
■ SETTING METHOD
2. How to assign parameters
(1) Calling parameters
1. SV setting
(1) Method 1
Start
data change
registration
200
200
200
200
(PV)
(SV)
>
200
200
200
sel
sel
>
or
Keep sel key pressed
for about 3 sec. in PV/
SV display condition.
LOC
2
: The first digit flashes to allow inc or dec of data.
sel
(2) Method 2
MOD
AUTO
Press
key for
reverse direction.
sel
>
AT
OFF
SV change mode
>
or
Keep sel key pressed
for about 3 sec in
parameter display
mode, back to PV/SV
mode.
>
sel
>
200
0200
or
>
>
>
200
200
(SV)
Press sel or
key for
parameter change.
>
Start
(PV)
or
>
>
>
>
Inc or dec data in the
flashing digit by
or
key.
P-ON
NO
>
>
>
sel
>
>
P
100
Shift flashing digit to
right by > key.
>
>
sel
or
>
200
0200
or
>
>
>
200
0200
>
LOOP
0
>
200
0200
>
(2) Data changing
>
>
Registration of the setting value by > key.
Start
(PV)
(SV)
P
10.6
200
P change mode
200
>
>
P
0 10.6
>
>
Inc or dec data in the
flashing digit by
or
key
>
or
>
>
200
(PV)
(SV)
>
>
P
0 10.6
>
>
Shift flashing digit to
right by > key.
>
P
0 10.6
>
>
>
P
0 10.6
>
>
Registartion of the setting value by > key.
P
10.6
5
PYX4
Parameter sheet for PYX
Lock
level
All
locked
0
Display
Only
SV
End
User
Set
Maker
1
2
3
Lock
level
All
locked
Mean of parameters
Range
Unit
####
Measured value (PV)
0~100%
Engineering
unit
####
Setting value (SV)
0~100%
Engineering
unit
####
Manual manipulated variable
(MV)
–3~103%
%
LOCK
Lock for other parameters
0~3
CAS
Remote SV input value
0~100%
Engineering
unit
OUT 1
MV for output 1
–3~103%
%
MV for output 2
–3~103%
%
Mode of control
AUTO
OUT 2
MOD
MAN
Auto tuning command
End
User
Set
Maker
1
2
3
Mean of parameters
Range
Unit
Hysteressis for Alarm 11
0~100%
Engineering
unit
Set value for Alarm 12
0~100%
Engineering
unit
Hysteressis for Alarm 12
0~100%
Engineering
unit
Set value for Alarm 13
0~100%
Engineering
unit
Hysteressis for Alarm 13
0~100%
Engineering
unit
AL2T
Alarm actions for Alarm 2
0000~(*1)
3FFFh
AL21
Set value for Alarm 21
0~100%
Engineering
unit
Hysteressis for Alarm 21
0~100%
Engineering
unit
Set value for Alarm 22
0~100%
Engineering
unit
Hysteressis for Alarm 22
0~100%
Engineering
unit
Set value for Alarm 23
0~100%
Engineering
unit
Hysteressis for Alarm 23
0~100%
Engineering
unit
LOOP
Time for Loop break detection
0.0~99.59
MM. ss
HB-A
Curent setting for Heater break
detection
1~50
Amp.
A11H
AL12
A12H
AL13
REM
AT
0
Display
Only
SV
A13H
OFF
A21H
ON
LOW
D-SV
STAT
Second SV
0~100%
Ramp / Soak location
OFF
AL22
Engineering
unit
A22H
1-RP
AL23
1-SK
2-RP
A23H
2-SK
3-RP
3-SK
4-RP
4-SK
TIME
Ramp / Soak rest time
0.0~99.59/
100h
PROG
Ramp / Soak command
OFF
0~50
Amp.
Input type/Decimal point/Temp.
Unit
0000~
4111h (*2)
Code No.
PVF
Upper scale for PV
–1999~
9999
1 word
DEC
PVB
Lower scale for PV
–1999~
9999
1 word
DEC
PVD
Decimal point position
0~2
1 byte DEC
TF
Rate of Digital Filter
0.0~900.0
Second
SFT
PV offset
–50~50%
Engineering
unit
SV-H
High limit setting of SV
0~100%
Engineering
unit
SV-L
Low limit setting of SV
0~100%
Engineering
unit
REMF
Upper scale of Remote SV
0~100%
Engineering
unit
REMB
Lower scale of Remote SV
0~100%
Engineering
unit
HH. mm
RUN
HOLD
(END)
SV1
1st. target point (SV)
0~100%
Engineering
unit
TM1R
Time of 1st. Ramp segment
0.0~99.59
HH. mm
TM1S
Time of 1st. Soak segment
0.0~99.59
HH. mm
SV2
2nd. target point (SV)
0~100%
Engineering
unit
TM2R
Time of 2nd. Ramp segment
0.0~99.59
HH. mm
TM2S
Time of 2nd. Soak segment
0.0~99.59
HH. mm
SV3
3rd. target point (SV)
0~100%
Engineering
unit
TM3R
Time of 3rd. Ramp segment
0.0~99.59
HH. mm
TM3S
Time of 3rd. Soak segment
0.0~99.59
HH. mm
DT
Cycle of computing
0.5
REV-1
Control action for output 1
NORM
REV-2
Control action for output 2
SV4
4th. target point (SV)
0~100%
Engineering
unit
TM4R
Time of 4th. Ramp segment
0.0~99.59
HH. mm
HH. mm
TM4S
Kind of control
CTRL
FUZY
PID
Second
Time of 4th. Soak segment
0.0~99.59
P-ON
Auto start demand when turn on
for Ramp/Soak
NO
P
Proportional Band
0.0~999.9
%
TC-1
Proportional Cycle for output 1
1~120
Second
TC-2
Proportional Cycle for output 2
1~120
Second
MV-H
High limit of MV
–3~103%
%
%
REV
YES
NORM
REV
HYS
Hysteresis for two step control
0~100%
Engineering
unit
I
Reset time
0~3200
Second
MV-L
Low limit of MV
–3~103%
D
Rate time
0~999.9
Second
BURN
Action when input is abnormal
0~4
COOL
Rate of Proportional Band
for cooling
0.0~10.0
AOT
Kind of Analog ourput source
DB
Dead Band/ Overlap
–50~50%
%
AR
Anti-Reset Wind-up
0~100%
Engineering
unit
Manual Reset value
–100.0~
100.0
AL1T
Alarm actions for Alarm 1
0000~(*1)
3FFFh
AL11
Set value for Alarm 11
0~100%
MAN
6
Heater Curent indicated value
PVT
CT
END
PV
SV
%
MV
STNO
AO-H
Upper scale of AO
0~100%
%
AO-L
Lower scale of AO
0~100%
%
Station No. for communication
1~15
Not es : *(1) : Hexa decimal code : refer to "Kinds of alarm" (page 4).
(2) : Hexa decimal code : refer to "Input range" (page 2).
Engineering
unit
(1) Fuzzy feedback control
Fuzzy feedback control expresses the basic actions of
PID control in fuzzy rules and has a nonlinear characteristic
in order to straighten out the problem inherent to PID
control (i.e., overshoot occurs when improving response
or instability arises due to a change in system even when
optimum PID parameters are assigned).
• Comparison of controllability
Each result of fuzzy control and PID control is shown
below.
It is understandable that the overshoot due to a change
of set value has been suppressed in fuzzy control.
FUZZY
PID
(4) Auto-tuning
PID parameters are automatically set by controller's
measurement and operation.
(a)
Standard type
AT start
AT end (PID setup)
AT operation
Set value (SV)
PV (Process value)
(Control output)
■ FUNCTIONS
ON 100%
ON
ON
OFF
OFF 0%
OFF
ON-OFF action
PID control
100.0
(b)
80.0
Low PV type
60.0
AT end (PID setup)
AT start
%
40.0
AT operation
20.0
Set value (SV)
0.0
SV-10%
(2) Ramp soak function (option)
Function to automatically change the set point value with
elapsing of time, in accordance with the preset pattern,
as shown below. This device allows maximum of 4 ramp
soak programs.
This first ramp starts at the value measured immediately
before the program is executed (PV).
Set point
(Control output)
Time
ON 100%
PV (Process value)
ON
ON
OFF
OFF 0%
OFF
ON-OFF action
PID control
Remarks: (1) Once auto-tuning has been made, PID parameter values
are retained despite power-off operation. Therefore, autotuning need not be repeated for the subsequent operations.
(2) During auto-tuning, control output corresponds to ON/OFF
action. This may cause PV to change widely depending
on process. If such a change is unallowable, auto-tuning
should not be used.
Set point 3
(3) Do not use the auto-tuning function for a process having
a quick response, such as pressure control, flow control,
etc.
Set point 2
Set point 1
Set point 4
PV
Second
soak
First
First ramp soak
Second
ramp
Third Third
ramp soak
Fourth
ramp
(5) Anti-reset Windup (ARW)(*)
Fourth soak
TM1R TM1S
TM2S
TM3S
TM2R
TM3R
TM4R
TM4S
Time
Control output (MV)
100%
Ramp : Region in which the SP changes toward the
target value.
Soak : Region in which the SP keeps unchanged at
the target value.
Powering on can automatically trigger the program run
(power-on start function), or an external contact signal
can also do that.
(3)
50%
MAN
Two set points (option)
Change set points digital input.
Main set point
(SV)
Process value
(PV)
10%
AR
AR
Setting value
(SV)
Proportional
band
Target point
Sub-set point
(
)
DI input
PD
action
I action
cut
PID
action
PD
action
I action
cut
Note : *ARW: INTEGRAL action is cut when PV is out range
of AR value.
7
PYX4
(6) Dual output (option)
The controller incorporates both the heating output and
the cooling output for setting "cooling control cycle", "cooling
proportional band" and "dead band or overlap band".
• Example of connection of heater break alarm
Power source
100 to 240V AC, 50/60Hz
(a) Setting of cooling proportional band
Power supply
Control output
Heating output
Output
Cooling output
+
Coefficient 0.5
Coefficient 1.0
Coefficient 2.0
Deviation (-)
Setting (SV)
Deviation (+)
Cooling
Heating
proportional proportional
band
band
Magnetic contactor
Thermocouple
In cooling side proportional band,
coefficient is set with respect to
heating side proportional band.
(ON/OFF action coefficient 0)
(b) Setting of dead band or overlap band
Heater
Electric furnace
(8) Error message
Display
Output
Cooling output
Deviation (+)
Deviation (-)
Overlap Dead
band
band
Setting (SV)
Setting range : 0 to ±25% of
proportional band
Overlap band : -50 to 0
Dead band : 0 to 50
Remarks:
(1) PID auto-tuning is carried out only on the heating side. During autotuning, output on the cooling side remains turned off. After autotuning, both heating and cooling operations are performed according
to the same PID values.
(2) ID set value is the same between heating and cooling sides.
Individual setting cannot be accepted.
(7) Heater break alarm (option)
• Use the current transformer (CT) specified by Fuji.
• Heater break is detected only when single-phase heater
is used.
• Heater break alarm is not available when controlling the
heater by thyristor phase-angle control method.
• [alarm detection point] and [Heater current] are registered
using of front key.
8
Heater break
alarm output
Current
transformer
*CT
Proportional band (P)
Heating output
-
MG
SW
Cause
(1) Thermocouple disconnection
(2) RTD disconnection
(3) Above 105% of input signal
(1) Thermocouple disconnection
(lower direction setting in burnout)
(2) RTD disconnection
(lower direction setting in burnout)
(3) Short circuit between A and B of RTD
(4) Below –5% of input signal
OUTLINE DIAGRAM
(Unit:mm)
5.5
115.0
48
44.8
48
SEL
Flush mounting panel cutout
45 +0.5
-0
45 +0.5
-0
CAUTION OF SAFETY
First of all, read this "Caution on Safety" carefully, and then use the instrument in the correct way.
The cautionary descriptions listed here contain important information about safety, so they should always be observed. Those
safety precautions are classilied in 2 ranks, WARNING and CAUTION.
The following shows the meaning of WARNING and CAUTION.
WARNING
Wrong handling may cause a dangerous situation in which there is 2 possibility
of death or heavy injury.
CAUTION
Wrong handling may cause a dangerous situation in which there is a possibility
of injury or physical damage.
WARNING
For the safe operation of the controller, where the temperature probe is to be installed into an environment where voltages
exceed 50 VDC, it is essential that reinforced isolation or basic isolation and earth is maintained between all connections to the
rear of the temperature controller, and that supplementary isolation is required for the alarm outputs.
The outputs from the controller are all less than 50 VDC.
When wiring the power supply terminal, use vinyl insulated 600 volt cable or equivalent. A switch breaking both poles of the
mains supply should be installed together with a fuse with a rating of 250volt 1Amp. The fuse should be installed between the
mains switch and the controller.
The level of insulation provided by the temperature controller is;
MAINS=BASIC
HEATER=BASIC
INPUTS=BASIC
Prior to operation of the installed system the wiring should be checked to ensure that the required levels of insulation have been
provided.
9
PYX4
■ TERMINAL WIRING
(1) Normally open SPST contact
(Control output 1)
(Control output 2)
Digital input
Re-transmission
(AO)
+
11
12
11
HB current input
SSR drive
output
TRX2
+
-
12
11
RS-485
transmission
11
12
12
Remote SV input
TRX1
11
11
12
12
Relay output
(Control output 1)
+
6
Alarm 2 output
or HB alarm
1
11
12
6
Alarm 1 output
or HB alarm
2
7
Common
3
8
Power supply
100 to 240V AC
50/60Hz
4
9
5
10
Relay
output
4 to 20mA
DC
-
7
7
-
8
9
9
9
10
10
Resistance 1 to 5V DC
bulb
(Control output 2)
Re-transmission
(AO)
+
11
12
11
HB current input
SSR drive
output
12
11
RS-485
transmission
TRX2
+
-
11
12
-
10
(2) SPDT
Digital input
+
SSR
drive
[Process input]
+
Thermocouple
(Control output 1)
6
12
4 to 20mA DC
Remote SV input
TRX1
11
12
11
12
Relay output
(Control output 1)
(Control output 1)
(normally close)
1
Alarm 1 output
or HB alarm
2
7
Common
3
8
Power supply
100 to 240V AC
50/60Hz
4
9
5
10
11
12
6
Relay
output
[Process input]
+
-
8
9
9
9
10
10
10
Thermocouple
Resistance 1 to 5V DC
bulb
ORDERING OF CURRENT TRANSFORMER
4 to 20mA DC
Current transformer for heater break
Specification : For 1 to 30A
Ordering code : CTL-6-SF
φ2.36
30
21
9
15
2.8
7.5
Specification : For 20 to 50A
Ordering code : CTL-12-S36-8F
25
3
10.5
40
φ5.8
M3 depth 4
30
40
Caution on Safety
30
40
φ3.5
7.5
15
10
φ12
[in mm]
*Before using this product, be sure to read its instruction manual in advance.
Head Office
6-17, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
http://www.fesys.co.jp/eng
Sales Div.
International Sales Dept.
No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan
Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187
http: //www.fic-net.jp/eng
Information in this catalog is subject to change without notice.
Printed in Japan