Azbil SDC15 User manual

SDC15
Single Loop Controller
User's Manual
for
Basic Operation
No. CP-SP-1147E
Thank you for purchasing an Azbil
Corporation product.
This manual contains information for
ensuring the correct use of this product.
It also provides necessary information
for installation, maintenance, and trou-
bleshooting.
This manual should be read by those
who design and maintain equipment that
uses this product. Be sure to keep this
manual nearby for handy reference.

NOTICE
©2003-2014 Azbil Corporation All Rights Reserved.
Be sure that the user receives this manual before the product is used.
Copying or duplicating this user’s manual in part or in whole is forbid-
den. The information and specifications in this manual are subject to
change without notice.
Considerable effort has been made to ensure that this manual is free
from inaccuracies and omissions. If you should find an error or omis-
sion, please contact the azbil Group.
In no event is Azbil Corporation liable to anyone for any indirect, special
or consequential damages as a result of using this product.

i
To reduce risk of electric shock which could cause personal injury, follow all safety
notices in this documentation.
This symbol warns the user of a potential shock hazard where hazardous live voltages
may be accessible.
•If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment must be impaired.
•Do not replace any component (or part) not explicitly specified as replaceable by your
supplier.
•All wiring must be in accordance with local norms and carried out by authorized and
experienced personnel.
•A switch in the main supply is required near the equipment.
•Main power supply wiring requires a (T) 200mA, 250V fuse(s) (IEC 127).
EQUIPMENT RATINGS
Supply voltages: 100 to 240V (operating power supply voltage 85 to 264Vac)
Frequency: 50/60Hz
Power consumption: 12VA maximum
EQUIPMENT CONDITIONS
Do not operate the instrument in the presence of flammable liquids or vapors.
Operation of any electrical instrument in such an environment constitutes a safety hazard.
Temperature: 0 to 50˚C
Humidity: 10 to 90%RH (no condensation)
Vibration: 2m/s2(10 to 60Hz)
Over-voltage category: Category II (IEC60364-4-443, IEC60664-1)
Pollution degree: Pollution degree 2
EQUIPMENT INSTALLATION
The controller must be mounted into a panel to limit operator access to the rear terminal.
Specifications of common mode voltage: The common mode voltages of all I/O except for main
supply and relay outputs are less than 30Vr.m.s, 42.4V peak and 60Vdc.
STANDARDS COMPLIANCE
EN61010-1, EN61326-1
SAFETY REQUIREMENTS

ii
■About Icons
The safety precautions described in this manual are indicated by various icons.
Please be sure you read and understand the icons and their meanings described
below before reading the rest of the manual.
Safety precautions are intended to ensure the safe and correct use of this prod-
uct, to prevent injury to the operator and others, and to prevent damage to proper-
ty. Be sure to observe these safety precautions.
■Examples
Use caution when handling the product.
The indicated action is prohibited.
Be sure to follow the indicated instructions.
SAFETY PRECAUTIONS
WARNING Warnings are indicated when mishandling this
product might result in death or serious injury.
CAUTION Cautions are indicated when mishandling this product might result in minor injury to the user, or
only physical damage to the product.

iii
WARNING
CAUTION
Use the SDC15 within the operating ranges recommended in the
specifications (temperature, humidity, voltage, vibration, shock,
mounting direction, atmosphere, etc.).
Do not block ventilation holes.
Doing so might cause fire or faulty operation.
Wire the SDC15 properly according to predetermined standards.
Also wire the SDC15 using specified power leads according to
recognized installation methods.
Failure to do so might cause electric shock, fire or faulty operation.
Do not allow lead clippings, chips or water to enter the controller case.
Doing so might cause fire or faulty operation.
Firmly tighten the terminal screws at the torque listed in the
specifications.
Insufficient tightening of terminal screws might cause electric shock or
fire.
Do not use unused terminals on the SDC15 as relay terminals.
Doing so might cause electric shock, fire, or faulty operation.
We recommend attaching the terminal cover (sold separately) after
wiring the SDC15.
Failure to do so might cause electric shock, fire, or faulty operation.
Continued use of the relays after the recommended service life has
expired might cause fire or faulty operation.
Failure to do so might cause fire or faulty operation.
Use Azbil Corporation's "SURGENON" if there is the risk of power
surges caused by lightning.
Doing so might cause fire or faulty operation.
Do not make incorrect connections. If the cables are connected
incorrectly, this might cause the unit to malfunction.
The controller does not function for approximately 6 sec. after the
power has been turned ON. Great care should be taken when the relay
output from the controller is used as interlock signals.
Do not disassemble the SDC15.
Doing so might cause electric shock or faulty operation.
Before wiring, or removing/mounting the SDC15, be sure to turn the
power OFF.
Failure to do so might cause electric shock.
Do not touch electrically charged parts such as the power terminals.
Doing so might cause electric shock.

iv
CAUTION
The part between the control output 1 and control output 2 is not
isolated. When necessary, use an appropriate isolator.
Do not connect multiple loader cables to multiple units from one
personal computer. The current coming from other circuits might
cause the PV value indication error to occur.
Do not connect any terminating resistor to both ends of the
communication path when performing the RS-485 wiring.
Doing so might cause the communication to fail.
Always mount a switch for shut-down of the main power of this unit in
an easily accessible area of the operator when performing electric
wiring of this unit. Additionally, connect a slow-action type (T) fuse
having a rated current of 0.2A and rated voltage of 250V to the wiring
for the instrument power supply of the AC power supply model.
(IEC127)
Do not operate the key with a propelling pencil or sharp-tipped object.
Doing so might cause faulty operation.
This unit incorporates the self-tuning function without use of control
constant settings in addition to the ON/OFF control and conventional
PID control. This self-tuning control monitors and studies the
characteristics of the control subject even if the SP value is changed or
external disturbance occurs in order to automatically calculate the
control constants. This ensures stable control all the time.
Important notice
The protective film is adhered to the front console of this unit to protect the surface.
After the installation and wiring work has been completed, stick a scotch tape to the corner of the console and pull it
out in the direction indicated by an arrow to peel off the protective film.
Handling Precautions
If you attempt to peel off the protective film with your fingernail, this might
cause damage to the console.
ot2
ot1
ev3
ev2
ev1
man
rdy
para
mode
Scotch tape
Pull out.

The Role of This Manual
v
Five different manuals in total are available for the SDC15 Single Loop Controller (hereafter referred to as
"this unit"). Read appropriate manuals according to your requirements. If you do not have your required manual,
contact the azbil Group or its dealer. Additionally, you can download necessary manuals from
"http://www.azbil.com".
The user level of this unit can be selected from three levels, "Simple configuration", "Standard configuration", and
"High function configuration". This manual describes the functions you can set up only with "Simple
configuration". If more advanced application is needed, refer to SDC15 Single Loop Controller User's Manual for
Installation & Configuration (CP-SP-1148E).
User’s Manual
WARNING
WARNING
CAUTION
CAUTION
SDC15 Single Loop Controller User's Manual for Basic Operation
Manual No. CP-SP-1147E
This manual. This manual is optional (sold separately). The manual
describes the functions you can set up only with "Simple configuration".
Personnel in charge of design, manufacture, operation, and/or
maintenance of a system using this unit must thoroughly read this manual.
This manual describes the installation, wiring, major functions and settings,
operating procedures, troubleshooting, and detailed specifications.
SDC15 Single Loop Controller User's Manual for Installation
Manual No. CP-UM-5287E
This manual is supplied with the product. Personnel in charge of design
and/or manufacture of a system using this unit must thoroughly read this
manual. This manual describes the safety precautions, installation, wiring,
and primary specifications. For further information about operation, refer to
other manuals, Basic Operation and/or Installation & Configuration.
SDC15 Single Loop Controller User's Manual for Installation &
Configuration Manual No. CP-SP-1148E
This manual is optional (sold separately). The manual describes the
hardware and all functions of this unit. Personnel in charge of design,
manufacture, operation, and/or maintenance of a system using this unit
and those in charge of communication software of a system using the
communication functions of this unit must thoroughly read this manual.
This manual also describes the installation, wiring, connections for
communication, all functions and settings of this unit, operating procedures,
communication with host station, such as personal computer,
communication addresses, troubleshooting, and detailed specifications.
SLP-C35 Smart Loader Package for SDC15/25/26/35/36 Single Loop
Controller User's Manual Manual No. CP-UM-5290E
This manual is supplied with the Smart Loader Package. The manual
describes the software used to make various settings for SDC15/25/26/35/
36 using a personal computer. Personnel in charge of design or setting of
a system using SDC15/25/26/35/36 must thoroughly read this manual. The
manual describes installation of the software into a personal computer,
operation of the personal computer, various functions, and setup
procedures.
CP-SP-1213E
SDC15 Quick Reference Guide
SDC15 Quick Reference Guide Manual No. CP-UM-1213E
For those using the SDC15 for the first time or for operators on the work
site, this guide serves as a reference when setting or modifying
parameters. Key operations, menu flowcharts and parameter settings are
presented with color illustrations.

Organization of This User's Manual
vi
This manual is organized as follows:
Chapter 1. OVERVIEW
This chapter describes the applications, features, model selection guide, and part
names and functions of this unit. Since the part names described in this chapter
are used in the subsequent descriptions, the part names and functions of this unit
must be understood correctly in this chapter.
Chapter 2. OUTLINE OF FUNCTIONS
This chapter describes the outline and operation flow of the functions of this unit.
Chapter 3. INSTALLATION
This chapter describes the environmental conditions, installation dimensions,
installation procedures, and necessary tools when installing this unit.
Chapter 4. WIRING
This chapter describes the wiring procedures, wiring precautions, and connection
examples.
Chapter 5. SETTINGS BEFORE STARTING OPERATION
This chapter describes the items necessary to set up before starting operation and
setting procedures.
Chapter 6. SETTINGS DURING OPERATION
This chapter describes the setting items and setting procedures when performing
the control with this unit built-into the customer’s system.
Chapter 7. LIST OF SIMPLE CONFIGURATION DISPLAY ITEMS
This chapter shows the list of the setting items when operating this unit with
"Simple configuration".
Chapter 8. PID CONTROL TUNING
This chapter describes the auto tuning function and self-tuning function of this
unit.
Chapter 9. MAINTENANCE AND TROUBLESHOOTING
This chapter describes the maintenance and inspection of this unit, as well as
troubleshooting.
Chapter 10. DISPOSAL
This chapter describes safety precautions and how to dispose of this unit when the
unit is no longer used.
Chapter 11. SPECIFICATIONS
This chapter describes the general specifications, performance specifications, and
optional parts of this unit.

Contents
vii
SAFETY REQUIREMENTS
SAFETY PRECAUTIONS
Important Notice
The Role of This Manual
Organization of This User's Manual
Conventions Used in This Manual
Chapter 1. OVERVIEW
1-1 Overview•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1-1
■Model selection table ••••••••••••••••••••••••••••••••••••••••••••••••••1-2
■Accessories and optional parts ••••••••••••••••••••••••••••••••••••••••1-3
1-2 Part Names and Functions•••••••••••••••••••••••••••••••••••••••••••••••••1-4
■Main body and console ••••••••••••••••••••••••••••••••••••••••••••••••1-4
■Bottom panel ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1-5
■Rear panel •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1-6
Chapter 2. OUTLINE OF FUNCTIONS
2-1 Input/Output Configuration ••••••••••••••••••••••••••••••••••••••••••••••••2-1
2-2 Key Operation •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2-2
■Data setting procedures •••••••••••••••••••••••••••••••••••••••••••••••2-3
■[mode] key operating procedures••••••••••••••••••••••••••••••••••••••2-5
2-3 Operation Modes ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2-6
Chapter 3. INSTALLATION
■Installation place•••••••••••••••••••••••••••••••••••••••••••••••••••••••3-1
■External Dimensions •••••••••••••••••••••••••••••••••••••••••••••••••••3-2
■Panel Cutout Dimensions ••••••••••••••••••••••••••••••••••••••••••••••3-2
■Mounting procedures ••••••••••••••••••••••••••••••••••••••••••••••••••3-3
Chapter 4. WIRING
4-1 Wiring••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••4-1
■Terminal assignment label symbols •••••••••••••••••••••••••••••••••••4-2
■Wiring Precautions ••••••••••••••••••••••••••••••••••••••••••••••••••••4-2
■Connection of open collector output to digital input •••••••••••••••••••4-5
■Connection of (RS-485) communication cable •••••••••••••••••••••••••4-5
■Connection with SSR (solid state relay)••••••••••••••••••••••••••••••••4-7
■Noise Preventive Measures •••••••••••••••••••••••••••••••••••••••••••4-10
4-2 Recommended Cables••••••••••••••••••••••••••••••••••••••••••••••••••••4-11

viii
Chapter 5. SETTINGS BEFORE STARTING OPERATION
5-1 PV Input •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-2
■PV range type setup •••••••••••••••••••••••••••••••••••••••••••••••••••5-2
■Temperature unit setup ••••••••••••••••••••••••••••••••••••••••••••••••5-4
■Decimal point position setup ••••••••••••••••••••••••••••••••••••••••••5-5
■PV input range low limit/high limit setup•••••••••••••••••••••••••••••••5-6
5-2 Control•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-7
■Control method setup••••••••••••••••••••••••••••••••••••••••••••••••••5-7
■Control action (Direct/Reverse) setup••••••••••••••••••••••••••••••••••5-8
■Heat/Cool control selection setup••••••••••••••••••••••••••••••••••••••5-9
■Heat/Cool control dead band setup •••••••••••••••••••••••••••••••••••5-10
■LSP system group setup••••••••••••••••••••••••••••••••••••••••••••••5-12
5-3 Internal Event•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-13
■Event operation type setup •••••••••••••••••••••••••••••••••••••••••••5-19
■Event Direct/Reverse, standby, and Event state at READY setup•••••5-20
■Event main setting setup •••••••••••••••••••••••••••••••••••••••••••••5-21
■Event sub-setting setup ••••••••••••••••••••••••••••••••••••••••••••••5-22
■Event hysteresis setup •••••••••••••••••••••••••••••••••••••••••••••••5-23
5-4 CT (Current Transformer) Input•••••••••••••••••••••••••••••••••••••••••••5-24
■CT type setup •••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-24
■CT output setup•••••••••••••••••••••••••••••••••••••••••••••••••••••••5-25
■CT wait time before measurement setup••••••••••••••••••••••••••••••5-26
5-5 Continuous Output •••••••••••••••••••••••••••••••••••••••••••••••••••••••5-27
■Output range setup ••••••••••••••••••••••••••••••••••••••••••••••••••5-27
■Output type setup•••••••••••••••••••••••••••••••••••••••••••••••••••••5-28
■Output scaling low limit/high limit setup••••••••••••••••••••••••••••••5-29
■MV scaling range •••••••••••••••••••••••••••••••••••••••••••••••••••••5-30
5-6 Communication•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-31
■Communication mode setup••••••••••••••••••••••••••••••••••••••••••5-31
■Station address setup ••••••••••••••••••••••••••••••••••••••••••••••••5-32
■Transmission speed setup••••••••••••••••••••••••••••••••••••••••••••5-33
■Data format (data length) setup •••••••••••••••••••••••••••••••••••••••5-34
■Data format (parity) setup•••••••••••••••••••••••••••••••••••••••••••••5-35
■Data format (stop bit) setup•••••••••••••••••••••••••••••••••••••••••••5-36
5-7 Key Operation ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-37
■Mode key function setup••••••••••••••••••••••••••••••••••••••••••••••5-37
■User level setup•••••••••••••••••••••••••••••••••••••••••••••••••••••••5-38
5-8 DI Assignment••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5-39
■Internal contact operation type setup•••••••••••••••••••••••••••••••••5-39
Chapter 6. SETTINGS DURING OPERATION
6-1 SP •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-1
■SP setup in operation display mode •••••••••••••••••••••••••••••••••••6-1
■LSP No. setup••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-2
■SP setup in parameter setting display mode •••••••••••••••••••••••••••6-3

ix
6-2 Operation Display other than SP•••••••••••••••••••••••••••••••••••••••••••6-4
■MV (manipulated variable) display and setup ••••••••••••••••••••••••••6-4
■Heat MV (manipulated variable) and cool MV
(manipulated variable) display •••••••••••••••••••••••••••••••••••••••••6-5
■AT (auto tuning) progress display •••••••••••••••••••••••••••••••••••••6-5
■CT (current transformer) input 1/2 current value display•••••••••••••••6-6
6-3 Mode•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-7
■AUTO/MANUAL mode selection setup •••••••••••••••••••••••••••••••••6-7
■RUN/READY mode selection setup ••••••••••••••••••••••••••••••••••••6-8
■AT (auto tuning) Stop/Start selection setup ••••••••••••••••••••••••••••6-9
■Release all DO (digital output) latches setup •••••••••••••••••••••••••6-10
■Communication DI (digital input) 1 setup •••••••••••••••••••••••••••••6-11
6-4 PID •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-12
■P-1 (proportional band) setup•••••••••••••••••••••••••••••••••••••••••6-12
■I-1 (Integral time) setup •••••••••••••••••••••••••••••••••••••••••••••••6-13
■d-1 (Derivative time) setup ••••••••••••••••••••••••••••••••••••••••••••6-14
■rE-1 (Manual reset) setup •••••••••••••••••••••••••••••••••••••••••••••6-15
■P-1C (Proportional band - cool) setup ••••••••••••••••••••••••••••••••6-16
■I-1C (Integral time - cool) setup •••••••••••••••••••••••••••••••••••••••6-17
■d-1C (Derivative time - cool) setup••••••••••••••••••••••••••••••••••••6-18
6-5 Other Parameter Setup •••••••••••••••••••••••••••••••••••••••••••••••••••6-19
■ON/OFF control differential setup•••••••••••••••••••••••••••••••••••••6-19
■PV filter setup•••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-20
■PV bias setup •••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-21
■Time proportional cycle time 1/2 setup •••••••••••••••••••••••••••••••6-22
■MV low limit/high limit at AT (auto tuning) ••••••••••••••••••••••••••••6-23
■AT type setup •••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-24
■Key lock setup ••••••••••••••••••••••••••••••••••••••••••••••••••••••••6-25
■Password lock function•••••••••••••••••••••••••••••••••••••••••••••••6-26
■Password display setup ••••••••••••••••••••••••••••••••••••••••••••••6-27
■Passwords (1A, 2A, 1B, 2B) setup ••••••••••••••••••••••••••••••••••••6-28
Chapter 7. LIST OF SIMPLE CONFIGURATION DISPLAY ITEMS
7-1 List of Operation Displays •••••••••••••••••••••••••••••••••••••••••••••••••7-1
7-2 List of Parameter Setting Displays•••••••••••••••••••••••••••••••••••••••••7-2
7-3 List of Setup Setting Displays •••••••••••••••••••••••••••••••••••••••••••••7-5
Chapter 8. PID CONTROL TUNING
8-1 AT (auto tuning) Function •••••••••••••••••••••••••••••••••••••••••••••••••8-2
■Starting procedures••••••••••••••••••••••••••••••••••••••••••••••••••••8-2
■Stopping procedures ••••••••••••••••••••••••••••••••••••••••••••••••••8-2
8-2 ST (Self-tuning) Function ••••••••••••••••••••••••••••••••••••••••••••••••••8-4
■Starting procedures••••••••••••••••••••••••••••••••••••••••••••••••••••8-4
■Stopping procedures ••••••••••••••••••••••••••••••••••••••••••••••••••8-5
8-3 Precautions for ST (Self-tuning) •••••••••••••••••••••••••••••••••••••••••••8-6

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Chapter 9. MAINTENANCE AND TROUBLESHOOTING
■Maintenance •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••9-1
■Alarm display and corrective action •••••••••••••••••••••••••••••••••••9-1
■Operation in case of PV input failure•••••••••••••••••••••••••••••••••••9-2
Chapter 10. DISPOSAL
Chapter 11. SPECIFICATIONS
■Specifications ••••••••••••••••••••••••••••••••••••••••••••••••••••••••11-1
■Accessories and optional parts•••••••••••••••••••••••••••••••••••••••11-4
Appendix
Glossary ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••Appendix-1
Index

Conventions Used in This Manual
xi
The following conventions are used in this manual:
Handling Precautions
:Handling Precautions indicate items that the user should pay attention to
when handling the SDC15.
Note :Notes indicate useful information that the user might benefit by knowing.
:This indicates the item or page that the user is requested to refer to.
(1), (2), (3) : The numbers with the parenthesis indicate steps in a sequence or
indicate corresponding parts in an explanation.
[para], [mode] etc. : These indicate keys on the keyboard.
>> : This indicates the operation results and the status after operation.
●Numeric value and character display on LED
Numeric values The 7-segment LED expresses numeric values as follows:
Alphabetical characters The 7-segment LED expresses alphabetical characters as follows:
There are some alphabetical characters, which are not displayed on
the LED.
Handling Precautions
As shown above, numeric value "2" and alphabetic character "Z" are
shown in the same manner.
Accordingly, numeric value "5" and alphabetic character "S", as well as
numeric value "9" and alphabetic character "Q" are also shown in the
same manner.
0 1 2 3 4
5 6 7 8 9
A B C D E
abcde
F G H I J
fghi j
K L M N O
kl mno
P Q R S T
pqr st
U V Y Z –
uvyz

Chapter 1. OVERVIEW
1 - 1 Overview
1-1
This unit is a compact controller having a mask of 48 X 48 mm and provides the following features:
•The depth is only 60 mm, providing the excellent space-saving.
•The front panel is only 2 mm thick. This ensures the excellent thin design.
•The display panel is large. This provides excellent visibility.
•[mode] key, [para] key, and digit-shift keys are provided on the front panel.
This ensures easy setup operation.
•Various input types are available, thermocouples (K, J, E, T, R, S, B, N, PLII,
WRe5-26, DIN U, DIN L), RTDs (Pt100, JPt100), current signals (4 to
20mAdc, 0 to 20mAdc), and voltage signals (0 to 1Vdc, 1 to 5Vdc, 0 to 5Vdc,
and 0 to 10Vdc).
•For control outputs, relay, voltage pulse, and current output are provided.
Additionally, these control outputs can be combined for the 2nd control output.
•The unit can be made applicable to the heat/cool control using the 2nd control
output and/or event relay.
•ON/OFF control, fixed PID, and self-tuning control can be performed.
•In addition to the PID control, two algorithms, RationaLOOP and Just-FiTTER,
are mounted. This ensures excellent controllability.
•With optional functions, a combination among 3-event points or 2-event points
(independent contacts), 2-point CT input, 2-point digital input, and/or RS-485
can be selected.
•The personal computer loader port is provided as standard function. The setup
can be made easily with use of the personal computer loader.
•Use of optional Smart Loader Package (SLP-C35) makes it possible to easily
perform the read/write operation of the parameters.
In addition to the table format setup, the operation and control status can be
monitored using the trend display. This unit can be operated without use of
program on the host unit.
•The unit is applicable to the IEC directive and the CE marking is put on the
unit.
(Applicable standards: EN61010-1 and EN61326-1)

1-2
■Model selection table
The following shows the model selection table of this unit:
Chapter 1. OVERVIEW
Basic Mounting Control PV input Power Option Additional Specifications
model No. output supply treatment
C15
TPanel mount type
(Note 1) S Socket mount type
Control output 1 Control output 2
(Note 2) R0 Relay contact output NO Relay contact output NC
V0 Voltage pulse output None
(for SSR drive)
(Note 3) VC Voltage pulse output Current output
(for SSR drive)
(Note 3) VV Voltage pulse output Voltage pulse output
(for SSR drive) (for SSR drive)
C0 Current output None
(Note 3) CC Current output Current output
TThermocouple input
(K, J, E, T, R, S, B, N, PLII, Wre5-26, DIN U, DIN L)
RRTD input (Pt100/JPt100)
LDC voltage/DC current input (0 to 1Vdc, 1 to 5Vdc,
0 to 5Vdc, 0 to 10Vdc, 0 to 20mAdc, 4 to 20mAdc)
AAC Model (100 to 240Vac)
DDC Model (24Vac / 24 to 48Vdc)
00 None
01 Event relay output: 3 points
(Note 3,4) 02 Event relay output: 3 points
Current transformer input: 2 points
Digital input: 2 points
(Note 3,4) 03 Event relay output: 3 points
Current transformer input: 2 points
RS-485 communication
(Note 5) 04 Event relay output: 2 points
(independent contact)
(Note 3,4,5) 05 Event relay output: 2 points
(independent contact)
Current transformer input: 2 points
Digital input: 2 points
(Note 3,4,5) 06 Event relay output: 2 points
(independent contact)
Current transformer input: 2 points
RS-485 communication
00 No additional processing
D0 Inspection Certificate provided
Y0 Complying with the traceability certification
Note 1. Socket sold separately
Note 2. Only 1a contact is applicable for C15S
Note 3. Can not be selected for the C15S
Note 4. Current transformer sold separately
Note 5. Can not be selected for DC Model

1-3
■Accessories and optional parts
* Not UL-certified.
Chapter 1. OVERVIEW
Name Model No.
Mounting bracket (for C15T) 81446403-001 (Accessory)
Gasket 81409657-001 (Accessory)
Current transformer (800 turns, 5.8mm hole dia.) QN206A*
Current transformer (800 turns, 12mm hole dia.) QN212A*
Socket (for C15S) 81446391-001
Hard cover 81446442-001
Soft cover 81446443-001
Terminal cover 81446898-001
Smart Loader Package SLP-C35J50
L-shaped plug adaptor 81441057-001

1 - 2 Part Names and Functions
1-4
■Main body and console
Main body: Contains the electric circuit for I/O signals of measuring instruments,
CPU, and memory.
Console: Contains the display panel showing numeric value and status, and
operation keys.
●Detailed description of console
[mode] key
When this key is kept pressed for 1 sec. or longer in the operation display
mode, any of the following operations, which have been set previously, can be
performed:
•AUTO/MANUAL mode selection
•RUN/READY mode selection
•AT (Auto Tuning) stop/start selection
•LSP (Local SP) group selection
•Release all DO (Digital Output) latches
•ON/OFF selection of communication DI (Digital Input) 1
Additionally, when pressing the [mode] key in the setup display mode, the
display is changed to the operation display.
[para] key
This key is used to change the display item.
When this key is kept pressed for 2 sec. or longer in the operation display
mode, the display is then changed to the setup display.
[<], [], []keys
These keys are used to increase or decrease the numeric value, or to shift the
digit.
<
<
Chapter 1. OVERVIEW
ot2
ot1
ev3
ev2
ev1
man
rdy
para
mode
Main bodyConsole
rdy man ev1 ev2 ev3 ot1 ot2
para
mode
pv
sp
Lower Display
Mode indicator
[<], [ ], and [ ] keys
<
<
[para] key
Upper display
[mode] key
Console
SDC15

1-5
Upper display
This display shows the PV value or the name of each display item (display
value or set value). If an alarm occurs in the operation display mode, the
normal display and alarm code are displayed alternately.
The decimal point at the right end digit shows AT (auto tuning) or ST (self-
tuning) status. The decimal point flashes twice repeatedly during execution of
AT while it flashes once repeatedly during execution of ST.
Lower display
This display shows the SP value, or the display value or set value of each
display item. The decimal point at the right end digit shows the communication
status.
Mode indicators
[rdy]: RUN/READY mode indicator. Lights when READY
[man]: AUTO/MANUAL mode indicator. Lights when MANUAL
[ev1], [ev2], [ev3]: Event 1 to 3 output indicator. Lights when event relays are
ON.
[ot1], [ot2]: Control 1 to 2 output indicator. Lights when the control
output is ON. The indicators are always lit when the
current output is used.
Handling Precautions
•To select the LSP group using the [mode] key, it is necessary to set a
value of “2” or more in [LSP system group].
•To show the communication status using the decimal point at the right
end digit on the lower display, select “High function configuration” and
make the [LED monitor] settings.
•Do not operate the key with a sharp object (such as tip of mechanical
pencil or needle). Doing so might cause the unit to malfunction.
■Bottom view
Loader connector: This connector is connected to a personal computer using the
dedicated cable supplied with the Smart Loader Package.
Chapter 1. OVERVIEW
Loader connector

1-6
■Rear panel
●Panel mount type
Terminal part: The power supply, input, and output are connected to the terminals.
The M3 screw is used. When connecting to the terminal, always
use a correct crimp terminal suitable for the M3 screw.
The tightening torque of the terminal screw is 0.4 to 0.6N·m.
●Socket mount type
Socket part: This socket is inserted into the optional socket. The power supply,
input, and output are connected from the socket.
When performing the wiring from the socket, always use a correct
crimp terminal suitable for the M3.5 screw.
The tightening torque of the socket terminal screw is 0.78 to 0.98N·m
or less.
Chapter 1. OVERVIEW
Terminal part
Socket part