Power supply voltage100 to 240VAC, 50/60Hz
Operating voltage range85% to 110% of the designated source voltage
Power consumption10VA (10W)
Sensor inputTemperature input type
Thermocouple: K, J, T, E, L, U, N, R, S,B
Platinum Resistance Thermometer: Pt100,JPt100
Infrared temperature sensor: 10 to 70°C, 60 to 120°C, 115 to 165°C, 140 to 260°C
Analog signal input: 0 to 50mV
Analog (current, voltage) input type
Current input: 4 to 20mA,0 to 20mA
Voltage input: 1 to 5V, 0 to 5V, 0 to 10V
Event inputContact inputON: 1kΩ max., OFF: 100 kΩ min.
Control method2-PID control
Setting methodDigital setting using front panel keys
Indication method7-segment digital display and individual indicators
Other functionsAccording to controller model
Ambient operating temperature-10 to 55°C (with no icing or condensation)
Ambient operating humidity25% to 85%
Storage temperature-25 to 65°C (with no icing or condensation)
Communications method (see note 1) RS-485 (two-wire, half duplex)/RS-232C
Synchronization methodStart-stop synchronization
Baud rate1,200/2,400/4,800/9,600/19,200bps
Transmission codeASCII
Data bit length (see note 2)7 or 8 bits
Stop bit length (see note 2)1 or 2 bits
Error detectionVertical parity (none, even, odd)
Flow controlNot available
InterfaceRS-485/RS-232C
Retry functionNot available
Block check character (BCC)
Digital Position-Proportional Controllers E5EZ-PRR31
Page 4
Specifications
■ Characteristics
Indication
Influence of temperature
(See note 2.)
Influence of voltage
(See note 2.)
Proportional band ( P )0.1 to 999.9°C (unit: 0.1 EU)
Integral time (I)0 to 3999 s (in units of 1s) With floating control, 1 to 3999 s
Derivative time (D)0 to 3999 s (in units of 1s)
Control period1 to 99 s (in units of 1s)
Manual reset value-10.0% to 110.0% (in units of 0.1%)
Alarm settings range-1999 to 9999 (decimal point position depends on input type)
Sampling period500 ms
Insulation resistance20M
Dielectric strength2000VAC,50 or 60Hz for 1min (at different stages of charging)
Vibration resistance (Error)10 to 55Hz, 20m/s
Shock resistance (Error)100m/s
WeightController : Approx. 260g
Memory protectionEEPROM (non-volatile memory) (number of writes: 100,000 operations)
EMCEmission enclosure:EN55011(GB/T 6113.1,2) 1 group, type A
accuracyThermocouple:
(displayed value
Platinum Resistance Thermometer:
(displayed value
Analog Input:
Potentiometer Input:
R, S, and B thermocouple inputs:
(
±1% of PV or ±10°C, whichever is greater) ±1 digit max.
Other thermocouple inputs:
(
±1% of PV or ±4°C, whichever is greater) ±1 digit max.
*
±10°C for -100°C or less for K sensors
Platinum resistance thermometer inputs:
(
±1% of PV or ±2°C, whichever is greater) ±1 digit max.
Analog inputs:
(
±1% of FS) ±1 digit max.
Ω min, 2 seconds (500 VDC)
2
,3 times each in 3
Emission AC mains:EN55011(GB/T 6113.1,2) 1 group, type A (see note 2)
Immunity ESD:IEC61000-4-2(GB/T 17626.2) 4kV contact discharge (series 2)
±0.5 % or ±1°C, whichever is largest) ±1 digit max. (see note 1)
±0.5 % or ±1°C, whichever is largest) ±1 digit max.
Pending standardsUL61010C-1,CSA C22.2 No.1010.1 meets the requirements of EN61326,EN61010-1(IEC61010-1)
Note 1: The indication accuracy of K thermocouples in the -200 to 1300°C range, T and N thermocouples at a temperature of -100°C max., and
U and L thermocouples at any temperature is
400°C max. is not specified. The indication accuracy of the R and S thermocouples at a temperature of 200°C max. is
2: For E5EZ-PRR@03-model products, in order to satisfy the conduction and emission specifications of EN61326CLASSA, a magnetic ring
(TDK:ZAT1730-0730) should be added to the communications line between the K3SC unit and the controller.
±2°C ±1 digit maximum. The indication accuracy of the B thermocouple at a temperature of
Note:All figures are in mm, unless otherwise stated.
■ Main Unit
• Dimensions of Panel's Grooves
Independent Installation
(Unit: mm)
45
92
above 120
Simultaneous Multiple Installations
(Unit: mm)
(48 Number of Units - 2.5)
During installation, please insert a temperature gauge into
During installation, please insert a temperature gauge into
the grooves on the panel (thickness of 1 to 8 mm), and
the grooves on the panel (thickness of 1 to 8 mm), and
insert the metallic components for installation into the
insert the metallic components for installation into the
fixing hooks at the bottom and the top of the rear cover.
fixing hooks at the bottom and the top of the rear cover.
Please ensure that the screws to metallic components are
Please ensure that the screws to metallic components are
even and locked.
even and locked.
When doing multiple installations, please ensure that the
When doing multiple installations, please ensure that the
temperature gauge remains within the specified
temperature gauge remains within the specified
temperature range.
temperature range.
92
• Package Content
1 Temperature Gauge
1 Temperature Gauge
2 Metallic Components For Installation
2 Metallic Components For Installation
1 Operating Manual
1 Operating Manual
1 Quality Certificate
1 Quality Certificate
During removal, please use a screwdriver
During removal, please use a screwdriver
to remove the clips on the top and bottom
to remove the clips on the top and bottom
of the front covering panel, and then
of the front covering panel, and then
remove the temperature gauge's front
remove the temperature gauge's front
panel.
panel.
• Unit Labels (Order Separately)
Y92S-L1 Type
11.8
48
Digital Position-Proportional Controllers E5EZ-PRR33
Page 6
Wiring Terminals
• Standard insulation is applied to the temperature gauge's I/O sections. If reinforced insulation is required, connect the input and
output terminals to a device without any exposed current-carrying parts, or to a device with standard insulation suitable for the
maximum operation voltage of the power supply I/O section.
• For E5EZ-PRR
netic ring (TDK: ZAT1730-0730) should be added to the communications line between the K3SC unit and the controller.
■ E5EZ-PRR
@03-model products, in order to satisfy the conduction and emission specifications of EN61326CLASSA, a mag-
1. ALM1 (Alarm 1): Illuminated when Alarm 1 output
is on.
ALM2 (Alarm 2): Illuminated when Alarm 2 output
is on.
2. OUT1, OUT2 Control Output 1(OPEN) and
2(CLOSE)
Illuminated when control output 1 and/ or control
output 2 are on.
3. STOP (Stop)
Illuminated when operations are stopped.
Illuminated during controls when time input or the
start/ stop function is stopped. Not illuminated in
any other cases.
4. CMW (Communications Writing Control)
Illuminated when communications writing is
enabled. Not illuminated in any other cases.
5. MANU (Manual Control)
Illuminated during manual mode. Not illuminated in
any other cases.
Mode Key
Press this level key to select parameters.
Temperature Unit
The temperature unit is displayed when the display
unit parameter is set to temperature.
The value selected for the temperature units
parameter determines the unit displayed.
When set to ˚C, C is displayed, and when set to ˚F, F
is displayed.
MANU
A/M
PV
SV
MV
No. 1 Display
Displays the process value or the designated data type.
Fully illuminated for approximately one second upon
start-up.
No. 2 Display
Displays setting values, reading values, and input
values.
Fully illuminated for approximately one second upon
start-up.
No. 3 Display
When valve opening display is on, it displays the
percentage of the valve’s opening.
No display when valve opening display is switched off.
Up Key
Every time that this key is pressed, the figure shown
in No. 2 Display will increase. Changes in the
displayed value accelerate as the time that the button
is pressed decreases. In manual mode, pressing the
U
key will switch on control output 1 (open side
output).
Level Key
Press this key to select the setting level.
The sequence of setting level selection is:
operation level Adjustment level,
Initial input level Communications
setting level.
A
M
Down Key
Every time that this key is pressed, the figure shown in No. 2 Display will decrease.
Changes in the displayed value accelerate as the time that the key is pressed
decreases. In manual mode, pressing the
(closed side output).
Automatic/ Manual Key
This automatic/ manual key makes the switch
between automatic mode and manual mode. When
this key is pressed for at least 1 second (unrelated to
the time at which the key is released), the unit will
switch modes.
D
key will switch on control output 2
Digital Position-Proportional Controllers E5EZ-PRR35
Page 8
Operation
L
g
In the past, sensor input types, alarm types, and control time for controllers were set using the DIP switch. Now, these hardware settings can
be performed with the parameters in the setting level. The and M keys are used to switch between setting levels, with the level determined
by the amount of time the key is pressed. Two examples of typical setup procedures follow.
• Typical Examples
Changes in Set Values
in-t
0
l.ini
M
intl
onof
l.ini
in-h
100
l.ini
in-l
l.ini
intl
onof
l.ini
M
0
M
• Typical Example 1
Input Type :
Control Method : PID Control
Alarm 1 Type : Upper limit of 2 (deviation)
Alarm Value 1 : 20˚C (deviation)
Set value : 100˚
5K thermocouple -200˚C to 1300˚C
C
When there are multi
parameters, press down
on the mode key until all
necessary parameters
have been selected.
: PID control
Execute AT (auto-tuning) to calculate the PID constant
Alarm 1 type : Upper limit of 2
Set value : 150˚
C
Setup steps
Connect the
power supply
Initial setting level
Set the input
specifications
Set the alarm type
PV/SP
After
executing AT
Adjustment level
Execute AT
Operation level
Set the alarm value
Begin operations
While
executing AT
After AT
While
executing AT
25
100
100..0
25
100
100..0
at
off
l. adj
at
on
l. adj
Connect the power supply
Operation level
Initial setting level
Press the DU
key, select input
type
Check the
alarm type
Operation level
DU
Press the
key, designate the
set value as
˚
150
C
Adjustment level
After AT
(Auto-tuning)
Operation level
Confirm the
set value as
C
150˚
Confirm that
controls are
operating
Press the DU
key, and set the
alarm value as
C
30˚
c
Process value/ set
25
value/ percentage
0
of valve opening
100..0
Press the key for
at least 3 seconds
Control stops
in-t
9
Input type
l.ini
M
alt1
Alarm1
2
Ty pe
l.ini
M
Press the key for
at least 1 second
Process value/
c
25
set value/
percentage
150
100..0
of valve
Press the key for
less than 1 second
at
Execute AT:
off
Cancel AT:
l. adj
Press the key for
less than 1 second
Control starts
c
Process value/
25
set value/
150
percentage of
100..0
valve opening
M
While running
r-5
run
run
While stopped
stop
M
c
al-1
Alarm
30
value 1 30
M
L
9
2
L
150
L
ON
OFF
L
ram execution
Start
Digital Position-Proportional Controllers E5EZ-PRR37
Page 10
■ Setting Level Configuration and Panel Key Operations
Parameters are split into groups, which are referred to as levels. Each of the set values (set items) in these levels are referred to as parameters.
E5EZ-PRR parameters are categorized into the following 7 levels:
Power ON
Starting in manual mode
Press A key for at least 1 s.
Manual
Mode
See
note 2.
c
a-m
Press the
for at least 1 s;
display will flash.
Press theL key
for at least 3 s while
a-m is displayed.
Operation Level
key
L
Starting in automatic mode
Press
for at least 1 s.
Press the
key for
L
at least 1 s.
See note 1.
Adjustment Level
key
L
c
25
100
100.0
Press the L key
for at least 1 s;
display will flash.
Press the
at least 3 s.
Control stops.
L
key for
Press the
+ M
L
keys
for at least 1 s.
L
PV display flashes
c
25
100
100.0
key
L
for at least 3 s
key:
+
M
∗
+
M
See note 2.
Protect Level
∗ The amount of time that a key must
be pressed can be changed under
protect level switching time
(advanced function setting level).
Manual
Control Level
Initial Setting Level
Press
key
L
for at least 1 s.
Advanced Function
Press
key
L
for at least 1 s.
Input password.
Set value −169
Communications
Setting Level
Setting Level
Control in progress
Control stopped
Not displayed for some models
Level change
Note1:When returning from the initial setting
operation level's initial value will be displayed.
2:When returning from the protect level to the operation level, the
operation level's initial value will be displayed.
∗: Set the initial/ communications protection parameter in protect level to 0, in order to activate the advanced function setting level.
❍: Indicates items that can be set. In these cases, the initial setting level, communications setting level, and advanced function setting level
can only be used when controls are stopped. Please take note of the fact that when any one of these three levels is selected, the controller's
output will be stopped.
With the exception of operation level, the present level will be on display. No. 3 Display will show the following when switching between set
values
:
Third DisplayLevel's Name
Manual MVManual control level
l.prtProtect level
No displayOperation level
• In order to switch to this level, it is necessary to press the and
M keys simultaneously for at least 3 seconds. This level is used to
prevent unnecessary or accidental revisions to the parameters.
The protected level is not displayed, so that no changes can be
made to parameters within this level.
• Once a power supply is connected, this level is displayed. It is
possible to switch from this level to protect level, initial setting level, and adjustment level.
•
During regular operations, this level is selected. It is possible to
view process value and MV during operations, as well as viewing
and revising set values, alarm values, and upper and lower limits.
• In order to switch to this level, press the key for less than 1
second.
•
Input in this level is used in controlling set values and shifted val-
ues. This level contains parameters used in setting up AT (autotuning), communications writing enabling/ disabling, hysteresis,
multi-SP, input shift, and PID constants. It is possible to switch
from this level to the peak parameters in the initial setting level,
protect level, or operation level.
• Pressing the A key for at least 1 second in operations/ adjustment level will place you in manual mode and bring you to manual control level. During manual operations, nothing besides
process value/ set value/ percentage of valve opening (manual
MV) can be displayed. In manual control, with process value/ set
value/ percentage of valve opening (manual MV) displayed,
pressing the A key for at least 1 second will move you into automatic mode and switch you to the operation level, displaying operation level's initial data. In this mode, it is possible to perform
MV manual operations.
• Initial Setting Level
• Advanced Function Setting Level
• Communications Setting Level
• To switch to this level, it is necessary to press the key in operation level or adjustment level for at least 3 seconds. One second later, the PV display will flash. This level is used for
designating input types, selecting control methods and control
times, as well as setting direct/ reverse operations and alarm
types. From this level, it is possible to switch to the advanced
function setting level or communications setting level. Press the
key for at least 1 second to return to operation level. Press the
key for less than 1 second to switch to the communications
setting level.
• In order to activate the advanced function setting level, set protect
level's initial setting/ communications protection to 0, and then input the password (-169) in the input initial setting level.
•
It is possible to switch from this level to the initial setting level.This level is used to set the display mode, event input assign-
•
ment, standby sequence, alarm hysteresis, and alarm delay.
• To switch to this level, press the key in the initial setting level
for less than 1 second. When using the communications function,
the conditions of communication are to be set in this level. Communications with a personal computer (host computer) allows set
values to be read and written, and manipulated variables to be
monitored.
Digital Position-Proportional Controllers E5EZ-PRR39
Page 12
■ Setting the Type of Input
Types of input include thermocouple, platinum resistance thermometer, infrared temperature sensor,
and analog inputs. Please set your input type in accordance with the sensor to be used. Product specifications also include multi input types, such as thermocouples/ plastic resistance thermometers, and
analog input types, resulting in differences between set values. Please confirm the model that you are
using.
Table of Input Types
in-t
5
l.ini
Input Types 5
Input TypeNameSet value
0-200 to 850 (°C)/ -300 to 1500 (°F)
Platinum
Resistance
Thermometer
Thermocouple
Infrared
temperature
sensor,
ES1B
Analog Input0 to 50 mV21
Pt100
JPt100
K
J
T
E100 to 600 (°C)/ 0 to 1100 (°F)
L11-100 to 850 (°C)/ -100 to 1500 (°F)
U
N13-200 to 1300 (°C)/ -300 to 2300 (°F)
R140 to 1700 (°C)/ 0 to 3000 (°F)
S150 to 1700 (°C)/ 0 to 3000 (°F)
B16100 to 1800 (°C)/ 300 to 3200 (°F)
10°C to 70°C170 to 90 (°C)/ 0 to 190 (°F)
60°C to 120°C180 to 120 (°C)/ 0 to 240 (°F)
115°C to
165°C
140°C to
260°C
1-199.9 to 500.0 (°C)/ -199.9 to 900.0 (°F)
20.0 to 100.0 (°C)/ 0.0 to 210.0 (°F)
3-199.9 to 500.0 (°C)/ -199.9 to 900.0 (°F)
40.0 to 100.0 (°C)/ 0.0 to 210.0 (°F)
5-200 to 1300 (°C)/ -300 to 2300 (°F)
6-20.0 to 500.0 (°C)/ 0.0 to 900.0 (°F)
7-100 to 850 (°C)/ -100 to 1500 (°F)
8-20.0 to 400.0 (°C)/ 0.0 to 750.0 (°F)
9-200 to 400 (°C)/ -300 to 700 (°F)
22-199.9 to 500.0 (°C)/ -199.9 to 700.0 (°F)
12-200 to 400 (°C)/ -300 to 700 (°F)
23-199.9 to 500.0 (°C)/ -199.9 to 700 (°F)
Use the following scales based on the
range of measurements:
-19999 to 9999
-199.9 to 999.9
-19.99 to 99.99
-1.999 to 9.999
Page 13
■ Alarm Types
• The conditions of alarm output are jointly determined by Alarm Type and Alarm Hysteresis.
• Below is an explanation of the alarm type, alarm value, upper alarm limit, and lower alarm limit parameters.
alt1
2
l.ini
Alarm1
Ty pe 2
Set
values
0
1
See note 1.
2
3
4
See note 1.
5
See note 1.
6
7
8
9
10
11
Type
When X is positiveWhen X is negative
Alarm function OFF
Upper-and lower-limits
Upper limits
Lower limits
Upper-and lower-limits
Upper-and lower-limit with standby sequence
Upper-limit with standby sequence
Lower-limit with standby sequence
Absolute-value upper-limits
Absolute-value lower-limits
Absolute-value upper-limit with standby sequence
Absolute-value lower-limit with standby sequence
Alarm output operation
Output OFF
L H
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
X
L H
X
0
0
0
0
SP
X
SP
SP
SP
L H
SP
X
SP
SP
X
X
X
X
(See note 5)
See note 2.
ON
OFF
ON
OFF
See note 3.
See note 4.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
X
SP
X
SP
X
SP
X
SP
X
0
X
0
X
0
X
0
Note:1. Upper and lower limits can be set independently for each alarm point, represented by L
and H. The set values are 1, 4, and 5.
2. Set value: 1, Upper-and lower-limit
Case 1Case 2Case 3 (Always ON)
L H SPSP L H
H< 0.L >0
|H| < |L|
H> 0.L <0
|H| > |L|
L SP H
H LSP
SP H L
3. Set value: 4, Upper-and lower-limit range
Case 1Case 2Case 3 (Always OFF)
L H SP SP L H
H< 0.L >0
|H| < |L|
H> 0.L <0
|H| > |L|
L SP H
H L SP
SP H L
H< 0.L <0
4. Set value: 5, Upper-and lower-limit with standby sequence
*for the upper and lower alarm limits above
- In case 1 and 2, if there are any overlaps in the upper and lower limits for hysteresis,
the alarm will always be OFF.
Example of case 1 and case 2: in case 3, the alarm will always be OFF.
5. Set value: 5, Upper-and lower-limit with standby sequence
If there are any overlaps in the upper and lower limits for hysteresis, the alarm will always
be OFF.
There are alarm types 1 to 2 (initial setting level), and settings should be made
independently for each alarm.
The initial value is 2: upper limit.
Digital Position-Proportional Controllers E5EZ-PRR41
Page 14
■ Parameters
Parameters related to setting items for each level are marked in boxes in the following flowchart and brief descriptions are given as required.
After finishing each setting, press the mode key to return to the beginning of each level.
Power ON
Starting in manual mode
Press A key for at least 1 s.
Manual
Mode
See
note 2.
c
a-m
Press the
for at least 1 s;
display will flash.
Press theL key
for at least 3 s while
a-m is displayed.
Operation Level
key
L
Starting in automatic mode
Press
for at least 1 s.
Press the
key for
L
at least 1 s.
See note 1.
Adjustment Level
key
L
c
25
100
100.0
Press the L key
for at least 1 s;
display will flash.
Press the
at least 3 s.
Control stops.
L
key for
Press the
+ M
L
keys
for at least 1 s.
L
PV display flashes
c
25
100
100.0
key
L
for at least 3 s
key:
+
M
∗
+
M
Manual
Control Level
Initial Setting Level
Press
key
L
for at least 1 s.
Press
key
L
for at least 1 s.
Input password.
Set value −169
Advanced Function
Setting Level
Note 1: When returning from the initial setting lever to the operation level, the
operation level's initial value will be displayed.
2: When returning from the protect level to the operation level, the oper-
ation level's initial value will be displayed.
Display
c
No. 1 Display
25
0
100
0
No. 2 Display
No. 3 Display
Communications
Setting Level
See note 2.
Protect Level
∗ The amount of time that a key must
be pressed can be changed under
protect level switching time
(advanced function setting level).
Control in progress
Control stopped
Not displayed for some models
Level change
Advanced function
setting level
Press the key
for at least 1 s
Initial setting level
Note:
to select the advanced function
Press the key
for at least 1 s
Press the key
for at least 3 s
setting level, you must input the
password (-169) in the initial
setting level.
The relationship between the set values and the range of protection is as shown below.
Mode
Set Values
0123
Present value❍❍❍❍
Set value❍
: Can be displayed/ changed
❍ : Can be displayed
× : Cannot be displayed/
no changes in level allowed
Others××
Adjustment level×××
• When the set value is 0, there is no protective function.
• The initial value is 0.
■ Initial Setting/ Communications Protection
This protect level restricts movement to the initial setting, communications setting, and
advanced function setting levels
.
Set ValueInitial setting levelCommunications
0
1
Able to switch (able to switch to the advanced
functions setting level)
Able to switch (unable to switch to the advanced
functions setting level)
Able to switch
Able to switch
2Able to switch Unable to switch
• Default setting: 1.
■ Setting Change Protection
Communications setting level
u-no
Communications
1
Unit No.
l.com
bps
Baud rate
96
l.com
len
Data bits
7
l.com
sbit
Stop bits
2
l.com
Communication parity
l.com
Places restrictions on changes to settings with keys.
: Able to use unit keys to change settings.
off
on: Unable to use unit keys to change settings, but this level can be changed.
■ Automatic/ Manual Key Protection
Set ValueAutomatic/ Manual Operations
offAutomatic/ Manual Able to switch
onAutomatic/ Manual Unable to switch
• Initial value is "off".
■ Setting Communications Parameters
Configures the E5EZ-PRR's communications specifications, so that its communications
with the host computer can be configured properly. In a layout where one point communicates with multiple points, in addition to all of the communication unit numbers, all other
settings should match. Each unit must have a single communication unit number set for it.
ParametersCharacter
Communications
Unit No.
display
u-no0 to 991None
Baud ratebps
Data bitslen7,
Stop bitssbit1,
Communication
parity
prtyNone, even, odd
Set
(monitor) value
1.2,
2.4,4.8,
9.6,
19.2
SetupInitial
1. 2,
2. 4 ,
9. 6
4. 8,
19. 2
value
9.6Kbps
87Length
2 2Bit
none,
even
odd
EvenNone
Unit
Digital Position-Proportional Controllers E5EZ-PRR45
Page 18
■ Troubleshooting
When an error occurs, the main display alternately shows an error signal and
the current item for display.
This section explains how to inspect an error signal, as well as corresponding
rectification measures.
5.err
Input Error
• Meaning
• Rectification Measures
• Operations with Errors
The figure inputted has exceeded the designated input range (the designated
range is between -1999 (-199.9) to 9999 (999.9)).
Check to make sure that the input line has not been connected incorrectly,
unplugged, a short-circuit, or is incompatible with this input type.
If there are no problems with the line type or the connection, power off and then
restart the unit. If the display remains unchanged, it will be necessary to change
the E5EZ-PRR. If the display is recovered, the root of the problem may have
been that noise from the energy flow was affecting the control system. Check for
any such noise.
The control output will be determined according to the designated value for
error MV.
The alarm output function will be the same as it is when the upper limit is
crossed.
After setting I/O error (advanced function setting level) on, alarm 1's output will
be activated in cases of error.
In process value or process value/ set value/ valve open percentage display
mode, error information will be displayed.
Even though this is not really an error, when the range of control exceeds the
range of display (-1999 (-199.9) to 9999 (999.9)), and the process value is
beyond the range of display, this signal will appear.
•
Will display [[[[ when the figure is less than -1999 (-199.9).
Will display ]]]] when the figure is more than 9999 (999.9).
•
Control will continue and operations will remain normal. In process value or process value/ set value/ valve open percentage display mode, error information will
be displayed.
Page 19
S. Err indicator
-1999
(-199.9)
Value display
Input indicator range
Display range
S. Err indicator
9999
(999.9)
cccc indicator
Value display
Input indicator range
-1999
(-199.9)
Display range
S. Err indicator
9999
(999.9)
S. Err indicator
S. Err indicatorS. Err indicator
e111
cccc indicatorcccc indicator
Value display
-1999
(-199.9)
Input indicator range
Display range
Value display
-1999
(-199.9)
Input indicator range
Display
range
(999.9)
Memory Errors
• Meaning
• Rectification Measures
• Operations with Errors
----
Potentiometer Input Errors
9999
S. Err indicator
9999
(999.9)
There has been an error in the internal memory.
Power off and then restart the unit. If the display remains unchanged, it will be
necessary to change the E5EZ-PRR. If the display is recovered, the root of the
problem may have been that noise from the energy flow was affecting the control
system. Check for any such noise.
Control output and alarm output will be shut off.
• Meaning
• Rectification Measures
• Operations with Errors
err
Electro-Mechanical Calibration Error
• Meaning
• Rectification Measures
• Operations with Errors
Errors appear in potentiometer input. Valve opening has exceeded its regular
range of -10% to 110%.
Check to see if there have been any wiring errors, burnouts, or short-circuits in
the potentiometer.
If there are no problems with the wiring, you can restart the power supply. If the
display remains unchanged, it will be necessary to change the E5EZ-PRR.
If the display, the root of the problem may have been interference, which should
be avoided in the future.
The control output will be determined according to the designated value for error
MV.
Alarm output will operate as normal.
Electro-mechanical calibration was not properly completed.
After confirming the potentiometer and the wiring of the motor driving valve, perform electro-mechanical calibration again.
Control output and alarm output are OFF.
Digital Position-Proportional Controllers E5EZ-PRR47
Page 20
Ceramic Furnace Position Proportional Control
Reading the extent of the valve's opening with a potentiometer, and using open and close tuning control is referred to as position proportional control or on/ off servo control.
■ Examples of Application
When using position proportional methods to control gas combustion furnace valves, position proportional control should be applied. See the following figure for measurement devices:
Temperature Input
Analog Signal Input
Potentiometer
SP
SPSP Ramp
OUT1
PV
PID
MV
OUT2
Set Value
E5EZ-PRR
8888
8888
8888
Ramp
SP ramp's set
value
SP ramp as time unit
Time
RUN
PV
SV
MV
MANU
A
M
Temperature
Sensor
Burner
The SP ramp function allows limits to be placed on temperature changes
Note:
which control the temperature within a specific range. This is useful for
ceramic furnace, in which severe temperature changes may cause damage or corruption.
Input should be connected to terminals 9, 10, and 11 depending upon input type. The Out 1 terminal links to the position proportional valve's open side and the Out 2 terminal links to its closed
side.
■ Settings
12
13
14
Ceramic kiln
(combustion)
Sensor
CWO
CLOSE
OPEN
Valve
1
2
3
4
5
6
7
8
Burner
Position proportional valve
9
10
11
Select a position proportional control model, and perform floating control using a position proportional valve with a travel time (time from being totally open to being totally closed) of 45 seconds.
Then, use the SP ramp function to make gradual changes to the process value at rates of
10.0°C/ minute. The relevant data and content of the settings are as shown below:
Direct/ reverse operation= or-r: Reverse operation (initial value)
Closed/ floating= flot: Floating (initial value)
Trave l t im e=
SP ramp set values=
Here, the travel time and SP ramp values are set. Initial values are used for all others.
45 seconds
"10"
20
21
22
in-t
5
ini
l.
mot
30
ini
l.
Operation level
25
0
0
100
.
Adjustment level
at
off
adj
l.
sprt
0
adj
l.
Travel time
45
U
Process value/ set value/
percentage of valve
opening
0
25
U
SP is the ramp’s
set value
0
1
U
1. Press the
level.
2. Press the M key multiple times, and select mot: travel time. Press the U key, making the set
value 45.
3. Press the
value/ percentage of valve opening will be displayed. Press the U key, setting the target
value as 250.
4. Press the
5. Press the M key multiple times, and select sprt: SP ramp set value. Press the U key, mak-
ing the set value 10.
key for at least 3 seconds to switch from the operation level to the initial setting
key for at least 1 second, returning to the operation level. The process value/ set
key for less than 1 second to switch from operation level to → adjustment level.
Digital Position-Proportional Controllers E5EZ-PRR49
Page 22
■ Adjustment
For adjustments to PID, please execute AT.
■ Fixed Settings for
Position Proportional
Control
• Closed/ Floating
• Electro-Mechanical
Calibration and
Travel Time
• Position Proportion Dead
Band Switch and Position
Proportional Hysteresis
After selecting position proportional control, it is possible to use closed/ floating,
electro-mechanical calibration, travel time, position proportional dead band,
switch hysteresis, potentiometer input error, and process value dead band.
• Closed Control
Connect the potentiometer to perform valve opening feedback control.
• Floating Control
Control in which no feedback is provided by a potentiometer on the valve's
opening, so that control can be performed without a potentiometer.
Just like in closed control, or in floating control where a valve's opening is to be
monitored, electro-mechanical calibration is to be performed when a potentiometer is connected. The valve's travel time, from being completely open to being
completely closed, is also set for self-measuring.
In cases of floating control where a potentiometer is not connected, it will be necessary to manually set the travel time. Set the time required for the valve to go
from complete openness to complete closure under travel time.
The valve output period (the time it takes the OPEN output and CLOSE output
switch to go from ON to OFF) is set as the position proportional dead band, and
hysteresis is set as switch hysteresis.
Its relationship with the extent of the valve's opening is as shown below:
• PV Dead Band
• Potentiometer Input Error
Switch position proportional hysteresis
Dead Band
ON
OFF
-100%
When the process value is within the PV dead band, control is controlled according to the logic that the process value = set value. This function is meant to prevent unnecessary output in cases where the process value approaches the set
value.
When the potentiometer produces an error during closed control, this is a function that chooses to stop control or switch to floating control, allowing control to
continue.