digital controller
SDS M0412-00
DIGITAL
CONTROLLER
MODEL
SC-S20
Features
Compact digital controller used with motor
valves, pneumatic valves, solenoid valves,
PID-action valves or ON-OFF valves, to
control the temperature in various processes.
1. Compact size takes up little space.
2. High accuracy (±0.5% R.S.) at low cost.
3. Two-alarm output on standard models.
4. With auto-tuning function.
5. Conforms with CE marking.
Dimensions
8
100
44
Units: mm
44
48
(54)
48
Wiring Terminals
No.
Terminal
1
Function
Relay contact output
NO
2
AL1
Alarm 1
AL2
Alarm 2
NO
3
4
NO
5
CAUTION
Relay contact output
Terminal
No.
Alarm
output
+
6
AC100V~240V DC24V
AC24V
7
8
Control
9
output
10
Function
−
1
⃝
A
B
AC 100 ~ 240V
or DC 24V
Power
2
⃝
+
1 RTD
⃝
−
2 Thermocouple
⃝
Measurement
input
C
Model SC-S20 must be used only after
mounting in a grounded metal enclosure.
Copyright
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Consulting & Engineering Service
Specifications
Action
Control
Display
Input Signal*
Item
Description
Thermocouple
·K ·J ·E ·R ·S ·B ·N ·L
·PLII ·W5Re/W26Re ·T ·U
± (0.5% R.S. + 1 digit) or ± 3°C,
whichever is greater
Approximately 0.35 µV/Ω
−
Input Signal Type*
(See next page for ranges)
Measurement Accuracy
Signal Source Resistance
Acceptable Input Wiring Resist.
Action when Input is Cut
Sampling Period
Data Displayed
Measurement/Setting Display
Indicator/Setting Accuracy
Control Action Types
Alarm
Target
Setting
Control Output
Output Specifications
Output Replacement Period
Time Proportion Period
Auto-tuning
Proportional Band
Integral Time
Derivative Time
Control Mode
·Pt100 ·JPt100
± (0.5% R.S. + 1 digit) or ± 0.8°C,
whichever is greater
−
Max. 10Ω
Up-scale
500mSEC
·Measurement value ·Target set value ·Alarm
·Control output status ·Others
Double-row 4-digit, 7 segment LED
Same as measurement accuracy
·PID action with auto-tuning (Reverse Action)
·PID action with auto-tuning (Direct Action)
Relay contact output: 1a contact 250V AC, 3A (resistive load)
Battery life: minimum 300,000 times (constant load)
500mSEC
Variable between 1 ~ 100 seconds
Available
1 or 0.1 ~ span °C or °F (ON/OFF at 0)
1 ~ 3600 seconds (PD action at 0)
1 ~ 3600 seconds (PI action at 0)
Auto mode
Number of Target Settings
1
Number of Alarm Points
Output Specifications
Possible to add a maximum of 2 points
Relay contact output: 1a contact 250V AC, 1A (resistive load)
Upper limit, lower limit, upper limit deviation, lower limit deviation,
upper/lower limit deviation, within limit deviation, FAIL (with standby action)
Between power terminal and ground: 500V DC/20MΩ minimum
Between measurement terminal and ground: 500V DC/20MΩ minimum
Between power terminal and ground: 1500V AC for 1 minute
Between measurement terminal and ground: 1000V AC for 1 minute
Three types: 1) Free between 100 ~ 240V AC (50/60Hz)
2) 24V AC (50/60Hz) 3) 24V DC
100 ~ 240V AC: 17VA max.; 24V AC: 7.5VA max.; 24V DC: 200mA max.
No influence on action if less than 20mSEC power interruption
(keep setting value in non-dissipating memory)
0 ~ 50°C
45 ~ 85% RH (non-condensing)
0.2G maximum
Panel installation
Approximately 170g
ABS resin (black)
Types of Alarm*
Insulation Resistance
Withstand Voltage
Power Voltage
General
(P)
(I)
(D)
RTD
Power Consumption
Effect of Power Interruption
Ambient Temperature Range
Ambient Humidity Range
Vibration Resistance
Installation Method
Weight
Material
* Note: When ordering, please specify input signal type, range and alarm type
CAUTION
This is a Class A product. In a domestic environment this product may cause radio
interference, in which case the user is required to take adequate measures.
CAUTION
To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range.
Local regulations may restrict the use of this product to below the conditions quoted.
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Consulting & Engineering Service
Measurement Input Types & Ranges
Input Type
Type K (EX: CA)
[JIS/IEC]
Type J (EX: IC)
[JIS/IEC]
Thermocouple
Type E (EX: CRC)
[JIS/IEC]
Type R*
[JIS/IEC]
Type S*
[JIS/IEC]
Type B*
[JIS/IEC]
Type N[NBS]
Type L[DIN]
Type [email protected][NBS]
Type W5Re/W26Re
[ASTM]
Type T (EX: CC)
[JIS/IEC]
Type U[DIN]
Input Range
0 ~ 200
0 ~ 400
0 ~ 600
0 ~ 800
0 ~ 1000
0 ~ 1200
0 ~ 1372
0 ~ 100
0 ~ 300
0 ~ 500
0 ~ 200
0 ~ 400
0 ~ 600
0 ~ 800
0 ~ 1000
0 ~ 1200
0 ~ 800
0 ~ 1000
0 ~ 1600
0 ~ 1769
0 ~ 1350
0 ~ 1600
0 ~ 1769
400 ~ 1800
0 ~ 1820
0 ~ 1200
0 ~ 1300
0 ~ 400
0 ~ 800
0 ~ 1300
0 ~ 1390
0 ~ 1200
0 ~ 2000
0 ~ 2320
―199.9~400.0
―199.9~100.0
―100.0~200.0
0.0~350.0
Code
K01
K02
K03
K04
K05
K06
K07
K13
K14
K20
J01
J02
J03
J04
J05
J06
E01
E02
R01
R02
R04
S01
S02
B01
B02
N01
N02
L01
L02
A01
A02
A03
W01
W02
T01
T02
T03
T04
―199.9~600.0
―199.9~100.0
U01
U02
U03
D01
D02
D03
D04
D05
D06
D07
D08
D09
D10
P01
P02
P03
P04
P05
P06
P07
P08
P09
P10
0.0~400.0
RTD
Pt100[JIS/IEC]
JPt100[JIS]
―199.9~649.0
―199.9~200.0
―100.0~ 50.0
―100.0~100.0
―100.0~200.0
0.0~ 50.0
0.0~100.0
0.0~200.0
0.0~300.0
0.0~500.0
―199.9~649.0
―199.9~200.0
―100.0~ 50.0
―100.0~100.0
―100.0~200.0
0.0~ 50.0
0.0~100.0
0.0~200.0
0.0~300.0
0.0~500.0
* Accuracy between 0 ~ 399˚C (0 ~ 749˚F) is not guaranteed
Copyright
C
Input Range
0 ~ 800
0 ~ 1600
0 ~ 2502
20 ~ 70
Code
KA1
KA2
KA3
KA9
0
0
0
0
~ 800
~ 1600
~ 2192
~ 400
JA1
JA2
JA3
JA6
0
0
0
0
~ 1600
~ 1832
~ 3200
~ 3216
EA1
EA2
RA1
RA2
0
0
800
0
0
0
0
0
0
0
~ 3200
~ 3216
~ 3200
~ 3308
~ 2300
~ 2372
~ 800
~ 1600
~ 2400
~ 2534
SA1
SA2
BA1
BA2
NA1
NA2
LA1
LA2
AA1
AA2
0 ~ 4000
WA1
―199.9~752.0
―100.0~200.0
―100.0~400.0
TA1
TA2
TA3
TA4
TA5
UA1
UA2
UA3
DA1
DA2
DA3
DA4
DA5
DA6
DA7
DA8
DA9
0.0~450.0
0.0~752.0
―199.9~999.9
―100.0~200.0
0.0~999.9
―199.9~999.9
―199.9~400.0
―199.9~200.0
―100.0~100.0
―100.0~300.0
0.0~100.0
0.0~200.0
0.0~400.0
0.0~500.0
Consulting & Engineering Service
Specifications Checksheet
Model
Code
SC-S20
Control Operation
Type
Measurement
Input Types &
Ranges (PV)
Control Output
(OUT)
Basic Specifications
Remarks
First Alarm Types
(AL1)
Second Alarm Types
(AL2)
•PID action with auto-tuning (Reverse)
•PID action with auto-tuning (Forward)
•Pt100 (0.0 ~ 200.0˚C)
(0 ~ 200.0˚C)
•
(0 ~ 200.0˚C)
•
•
−
M
Power
*
F
D
□ AC100 ~ 240V
□ DC24V
□ AC24V
When proportional band
P = O, ON-OFF action
D08
K01
J01
(
Relay control output
•Deviation upper limit
•Deviation lower limit
•Deviation upper/lower limits
•Within deviation range
•Deviation upper limit with standby
•Deviation lower limit with standby
•Deviation upper/lower limits with standby
•Measurement upper limit
•Measurement lower limit
•Measurement upper limit with standby
•Measurement lower limit with standby
•No 1st alarm function
•Deviation upper limit
•Deviation lower limit
•Deviation upper/lower limits
•Within deviation range
•Deviation upper limit with standby
•Deviation lower limit with standby
•Deviation upper/lower limits with standby
•Measurement upper limit
•Measurement lower limit
•Measurement upper limit with standby
•Measurement lower limit with standby
•No 2nd alarm function
Select the type and range code
from “Table of Measurement
Input Types and Ranges.”
)
When ON-OFF action,
Hysteresis: 2˚C (4˚F)
M
A
B
C
D
E
F
G
H
J
K
L
N
Alarm Hysteresis: 2˚C (4˚F)
or 2.0˚C (4.0˚F)
A
B
C
D
E
F
G
H
J
K
L
N
ISO 9001/ ISO 14001
Manufacturer
Kakogawa, Japan
is approved by LRQA Ltd. to ISO 9001/14001
Copyright
(M)
C
SDS M0412-00
Rev. 2/2001
Specifications subject to change without notice.
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