E5AK

Digital Controller

E5AK Digital Controller

OMRON Corporation
Industrial Automation Company
Industrial Devices and Components Division H.Q.
Measuring Components Department
Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: (81)75-344-7080/Fax: (81)75-344-7189
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69, NL-2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
OMRON ELECTRONICS LLC

User's Manual
1 East Commerce Drive, Schaumburg, IL 60173
U.S.A.
Tel: (1)847-843-7900/Fax: (1)847-843-8568
OMRON ASIA PACIFIC PTE. LTD.
83 Clemenceau Avenue,
#11-01, UE Square,
239920 Singapore
Tel: (65)6835-3011/Fax: (65)6835-2711
OMRON CHINA CO., LTD. BEIJING OFFICE
Room 1028, Office Building,
Cat. No. H083-E1-02A

Beijing Capital Times Square,

No. 88 West Chang'an Road,
Beijing, 100031 China
Tel: (86)10-8391-3005/Fax: (86)10-8391-3688 User's Manual
Authorized Distributor:

Cat. No. H083-E1-02A

Cat. No. H083-E1-02A Note: Specifications subject to change without notice. Printed in Japan
1203-0.4M (0497) (B)
E5AK

Preface
Thank you for your purchase of your E5AK, intelligent digital controller.
The E5AK allows the user to carry out the following:
· Select from many types of temperature and analog input (multiple input)
· Support position-proportional control (position-proportional type controllers only).
· Select output functions such as control output or alarm (output assignment)
· Use the HBA (heater burnout alarm) function (standard type controllers only).
· Use four setpoints (multi-SP function)
· Use remote SP input.
· Monitor the control loop by LBA (Loop Break Alarm)
· Use the communications function
· Calibrate input or transfer output
· It also features a watertight construction (NEMA4: equivalent to IP66)

This User’s Manual describes how to use the E5AK compact, high-function digital con-
troller.
Before using your E5AK, thoroughly read and understand this manual in order to
ensure correct use.

About this manial

E OMRON, 1996
(1) All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted,
in any form, or by any means, mechanical, electronic, photocopying, recording, recording, or otherwise, without
the prior written permission of OMRON.
(2) No patent liability is assumed with respect to the use of the information contained herein.
(3) Moreover, because OMRON is constantly striving to improve its high-quality products, the information in this
manual is subject to change without notice. Every precaution has been taken in the preparation of this manual.
Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained in this publication.

I
E5AK

Conventions Used in This Manual

J Meanings of Abbreviations
Sometimes the following abbreviations are used in parameter names, figures and in text
explanations. These abbreviations mean the following.

Abbreviation Term
PV Process value
SP Set point
RSP Remote set point
LSP Local set point
LBA Loop break alarm
HB Heater burnout
AT Auto-tuning
ST Self-tuning

J How to Read Display Symbols

The following tables show the correspondence between the symbols displayed on the displays
and alphabet characters.

A B C D E F G H I J K L M

N O P Q R S T U VW X Y Z
J “Reference” mark
This mark indicates that extra, useful information follows, such as supplementary explanations
and how to apply functions.

II
E5AK

J Notice:
OMRON products are manufactured for use according to proper procedures by a qualified opera-
tor and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always
heed the information provided with them. Failure to heed precautions can result in injury to
people or damage to the product.

! DANGER Indicates information that, if not heeded, is likely to result in loss of life
or serious injury.

! WARNING Indicates information that, if not heeded, could possibly result in loss
of life or serious injury.

! Caution Indicates information that, if not heeded, could result in relatively seri-
ous or minor injury, damage to the product, or faulty operation.

III
E5AK

J How this Manual is Organized

Purpose Title Description
D Learning about the gen- Chapter 1 Introduction This chapter describes the fea-
tures of the E5AK, names of
eral features of the E5AK parts, and typical functions.

D Setting up the E5AK Chapter 2 Preparations This chapter describes the opera-
tions that you must carry out
(e.g. installation, wiring and
switch settings) before you can
use the E5AK.

D Basic E5AK operations Chapter 3 Basic Operation These chapters describe how to
Chapter 5 Parameters use the front panel keys and how
to view the display when setting
the parameters of the major func-
tions for the E5AK.

D Applied E5AK operations Chapter 4 Applied Operation These chapters describe the
Chapter 5 Parameters important functions of the E5AK
and how to use the parameters
for making full use of the E5AK.

D Using a Position-propor- Chapter 4 Applied Opera- This chapter describes the func-
tion/4.1 Selecting the Control tions related specifically to posi-
tional Type Controller Method tion-proportional type control-
lers.

D Communications with a Chapter 6 Using the Commu- This chapter mainly describes
nications Function the communications commands,
host computer and gives program examples.

D Calibration Chapter 7 Calibration This chapter describes how the

user should calibrate the E5AK.

D Troubleshooting Chapter 8 Troubleshooting This chapter describes what to do

if any problems occur.

IV
E5AK

Pay Attention to the Following when Installing

this Controller
F If you remove the controller from its case, never touch nor apply shock to the electronic
parts inside.
F Do not cover the area around the E5AK. (Ensure sufficient space around the controller
to allow heat radiation.)
F Use a voltage (AC100-240V or AC/DC24V at 50 to 60 Hz). At power ON, the pre-
scribed voltage level must be attained within two seconds.
F When wiring input or output lines to your controller, keep the following points in mind
to reduce the influence from inductive noise:
· Allow adequate space between the high voltage/current power lines and the input/out-
put lines.
· Avoid parallel or common wiring with high voltage sources and power lines carrying
large currents.
· Using separating pipes, duct, and shielded line is also useful in protecting the controller,
and its lines form inductive noise.
F Allow as much space as possible between the controller and devices that generate a pow-
erful, high frequency (high-frequency welders, high-frequency sewing machines, and so
forth) or surge. These devices may cause malfunctions.
F If there is a large power-generating peripheral device and any of its lines, attach a surge
suppressor or noise filter to the device to stop the noise affecting the controller system.
In particular, motors, transformers, solenoids and magnetic coils have an inductance
component, and therefore can generate very strong noises.
F When mounting a noise filter, be sure to first check the filter’s voltage and current
capacity, then mount the filter as close as possible to the controller.
F Do not use the controller in places where icing, condensation, dust, corrosive gas (espe-
cially sulfurized gas or ammonia gas), shock, vibration, splashing liquid, or oil atmo-
sphere occur. Also, avoid places where the controller can be subjected to intense heat
radiation (like from a furnace) or sudden temperature changes.
F Ambient temperature must be kept between -10_C to 55_C. Ambient humidity must be
kept between 35%RH to 85%RH (with no icing or condensation). If the controller is
installed inside a control board, the ambient temperature must be kept under 55_C,
including the temperature around the controller. If the controller is subjected to heat
radiation, use a fan to cool the surface of the controller to under 55_C.
F Store the controller at an ambient temperature between -25_C to 65_C. The ambient
humidity must be between 35%RH to 85%RH (with no icing or condensation).
F Never place heavy objects on, or apply pressure to the controller that may cause it to
deform and deterioration during use or storage.
F Avoid using the controller in places near a radio, television set, or wireless installation.
These devices can cause radio disturbances which adversely affect the performance of
the controller.

V
 Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Conventions Used in This Manual . . . . . . . . . . . . . . . II
Pay Attention to the Following when Installing
this Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--1

This chapter introduces the E5AK. First-time users should read this chapter with-
out fail.
For details on how to use the controller and parameter settings, see Chapters 2
onwards.

1.1 Names of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2

1.2 Input and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--4
1.3 Parameters and Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--7
1.4 About the Communications Function . . . . . . . . . . . . . . . . . . . . . . . 1--10
1.5 About Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--11

CHAPTER 2 PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--1

This chapter describes the operations you should carry out before turning the
E5AK ON.

2.1 Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--2

2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5
2.3 Wiring Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--8

CHAPTER 3 BASIC OPERATION . . . . . . . . . . . . . . . . . . . . . . . . 3--1

This chapter describes an actual example for understanding the basic operation
of the E5AK.

3.1 Convention Used in this Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--2

3.2 Setting Input Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--4
3.3 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--6
3.4 Setting Alarm Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--9
3.5 Protect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--12
3.6 Starting and Stopping Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--13
3.7 Adjusting Control Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--14

CHAPTER 4 APPLIED OPERATION . . . . . . . . . . . . . . . . . . . . . . 4--1

This chapter describes each of the parameters required for making full use of the
features of the E5AK. Read this chapter while referring to the parameter descrip-
tions in chapter 5.

4.1 Selecting the Control Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--2

4.2 Operating Condition Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--5
4.3 How to Use Event Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--8
4.4 How to Use the Remote SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--11
4.5 How to Use the Heater Burnout Alarm . . . . . . . . . . . . . . . . . . . . . . 4--13
4.6 LBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--15
4.7 How to Use Transfer Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--17
CHAPTER 5 PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--1
This chapter describes the parameters of the E5AK. Use this chapter as a refer-
ence guide.
Protect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--3
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--5
Level 0 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--6
Level 1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--10
Level 2 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--18
Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--25
Expansion Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--32
Option Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--37
Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--46
CHAPTER 6 USING THE COMMUNICATIONS FUNCTION . . 6--1
This chapter mainly describes communications with a host computer and com-
munications commands.
6.1 Outline of the Communications Function . . . . . . . . . . . . . . . . . . . . 6--2
6.2 Preparing for Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--3
6.3 Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--5
6.4 Commands and Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--6
6.5 How to Read Communications Error Information . . . . . . . . . . . . . 6--12
6.6 Program Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--14
CHAPTER 7 CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--1
This chapter describes procedures for each calibration operation.
Read this chapter only when the controller must be calibrated.
7.1 Structure of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--2
7.2 Calibrating Thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--4
7.3 Calibrating Platinum Resistance Thermometer . . . . . . . . . . . . . . 7--7
7.4 Calibrating Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--9
7.5 Calibrating Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--10
7.6 Checking Indication Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--12
CHAPTER 8 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 8--1
This chapter describes how to find out and remedy the cause if the E5AK does
not function properly.
8.1 Initial Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8--2
8.2 How to Use the Error Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8--3
8.3 How to Use Error Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8--5
8.4 Checking Operation Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . 8--6
APPENDIX
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . A--2
ABOUT CURRENT TRANSFORMER (CT) . . . A--5
CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . A--6
SETTING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . A--8
MODEL LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--11
PARAMETER OPERATIONS LIST . . . . . . . . . . A--12
FUZZY SELF-TUNING . . . . . . . . . . . . . . . . . . . . A--14
X FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--17
ASCII CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . A--20
INDEX
REVISION HISTORY
E5AK

CHAPTER 1 INTRODUCTION

CHAPTER 1 1
INTRODUCTION
This chapter introduces the E5AK. First-time users should read this
chapter without fail.
For details on how to use the controller and parameter settings, see
Chapters 2 onwards.

1.1 Names of parts . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Main parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
About the displays . . . . . . . . . . . . . . . . . . . . . 1-3
How to use keys . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 Input and Output . . . . . . . . . . . . . . . . . . . . . . 1-4
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.3 Parameters and Menus . . . . . . . . . . . . . . . . . 1-7
Parameter types . . . . . . . . . . . . . . . . . . . . . . . 1-7
Selecting modes . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Selecting parameters . . . . . . . . . . . . . . . . . . . 1-9
Fixing settings . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.4 About the Communications Function . . . . 1-10
1.5 About Calibration . . . . . . . . . . . . . . . . . . . . . . 1-11

1--1
E5AK

CHAPTER 1 INTRODUCTION

1.1 Names of parts

J Main parts
Terminals
P 2-8

Rear case
Front panel
This page

J Front panel

Bar graph PV No.1 display

SV

Operation indicators
No.2 display
OUT1 OUT2 RMT RSP MANU SUB1 SUB2
SUB1 SUB2 OUT1 OUT2 STOP AT

MANU
STOP
RMT
RST
AT
E5AK

A/M key Display key Down key Up key

A/M

1--2
E5AK

1.1 Names of parts

J About the displays

F No.1 display Displays the process value or parameter symbols.

F No.2 display Displays the set point, manipulated variable or parameter settings.

F Operation indica- · OUT1 : Lits when the pulse output function assigned to “control
tors output 1” is ON.
· OUT2 : Lits when the pulse output function assigned to “control
output 2” is ON.
· SUB1 : Lits when the output function assigned to “auxiliary output
1” is ON.
· SUB2 : Lits when the output function assigned to “auxiliary
output 2” is ON.
· MANU : Lits in the manual operation mode.
· STOP : Lits when operation has stopped.
· RMT : Lits during remote operation.
· RSP : Lits during remote SP operation.
· AT : Flashes during auto-tuning.

F Bar graph On a standard type controller (E5AK-AA2), this bar graph indicates the
manipulated variable (heat) in 10% increments per single segment. On a
position-proportional type controller (E5AK-PRR2), this bar graph indi-
cates the valve opening in 10% increments per single segment.

J How to use keys The following describes basic key operations.

F A/M key Each press of this key switches between the auto and manual operations.

F key The functions of this key change according to how long it is pressed. If the
key is pressed for less than one second, the parameters are switched. If the
key is pressed for one second or more, the menu display appears. In key
operations from here on, “press the key” refers to pressing the key for less
than one second.
For details on parameter switching and menu display items, see page 1-8.

F key Each press of the key increments or advances the values or settings
on the No.2 display, while each press of the key decrements or returns
the values or settings on the No.2 display.

Functions vary, for example, when the A/M key is held down simulta-
neously with the display key, or a key is held down continuously. For
details, see page 1-8. Also, chapters 3 and 4 describe examples using vari-
ous key combinations.

1--3
E5AK

CHAPTER 1 INTRODUCTION

1.2 Input and Output

Controller Control output

Temperature input (heat) Control output 1
Voltage input
Current input Control output
(cool)
Control output 2
Alarm 1
CT input
Potentiometer Alarm 2
Auxiliary output 1

Alarm 3

Remote SP input HBA Auxiliary output 2

LBA

Event input Error 1 Transfer output

Error 2

Error 3

J Input The E5AK supports following inputs: temperature input, current input,
voltage input, CT input/Potentiometer, remote SP input and event input.

F Temperature input/Voltage input/Current input

· Only one of temperature input, voltage input and current input can be
selected and connected to the controller. The above figure shows temper-
ature input connected to the controller.
· The following input sensors can be connected for temperature input:
Thermocouple: K, J, T, E, L, U, N, R, S, B, W, PLII
Platinum resistance thermometer: JPt100, Pt100
· The following currents can be connected for current input:
4 to 20 mA, 0 to 20 mA
· The following voltages can be connected for voltage input:
1 to 5 VDC, 0 to 5 VDC, 0 to 10 VDC

F CT input/Poten- · Connect CT input when using the HBA (heater burnout alarm) function
tiometer on a standard type controller (E5AK-AA2).
· Connect the potentiometer when monitoring the valve opening on a
position-proportional type controller (E5AK-PRR2).

F Remote SP input When the remote SP function is enabled, inputs within the range 4 to 20
mA are used as the remote SP.

1--4
E5AK

1.1 Names of parts

F Event input When using event input, add on the input unit (E53-CKB).
You can select from the following five event inputs:
Multi-SP
Run/Stop
Remote/Local
Auto/Manual
SP mode

J Output
The E5AK supports the following five outputs.
Control output 1
Control output 2
Auxiliary output 1
Auxiliary output2
Transfer output
When using control outputs 1 and 2, set the output unit (sold separately).
Nine output units are available to suit the output circuit configuration.
When using transfer output, add on the communication unit (E53-AKF).
Note: The output functions of the E5AK do not operate for five seconds af-
ter the E5AK is turned ON.

F Output assign- The E5AK supports the following ten output functions.
ments Control output (heat)
Control output (cool)
Alarms 1 to 3
HBA
LBA
Error 1 (input error)
Error 2 (A/D converter error)
Error 3 (RSP input error)
Assign these output functions to control output 1, control output 2, auxil-
iary output1, and auxiliary output2.
However, note that as control output 1 is used as the open output and con-
trol output 2 is used as close output on a position-proportional type con-
troller (E5AK-PRR2), control outputs 1 and 2 cannot be used as assign-
ment destinations. Also, of the output functions, control output (heat),
control output (cool), HBA and LBA are disabled.
On a standard type controller, there are restrictions on how assignment
destinations (control output 1, control output2, auxiliary output1, and
auxiliary output2) can be used. For details, see 3.3 Setting Output Specifi-
cations.
In the example on the previous page, “control output (heat)” is assigned
to “control output 1”, “alarm 1” is assigned to “control output 2”, and
“alarm 2” is assigned to “auxiliary output 1”. Accordingly, the configura-
tion is such that heating control output is connected to control output 1,
and alarm output is connected to control output 2 and auxiliary output 1.

1--5
E5AK

CHAPTER 1 INTRODUCTION

Control outputs 1 and 2 are used depending on the differences in control

method as follows.

Control Output 1/
Control Method Model
Control Output 2
Standard control E5AK-AA2 AC100-240 Control output (heat) /
E5AK-AA2 AC/DC24 Alarm, etc.,
Heating and cooling E5AK-AA2 AC100-240 Control output (heat) /
control E5AK-AA2 AC/DC24 Control output (cool)
Position-proportional E5AK-PRR2 AC100-240 Open/Close
control E5AK-PRR2 AC/DC24

F Transfer output The E5AK supports the following six transfer outputs.
Set point
Set point during SP ramp
Process value
Heating side manipulated variable
Cooling side manipulated variable
Valve opening
However, note that heating/cooling side manipulated variables can be out-
put only standard type controllers, and valve opening can be output on
position-proportional type controllers
These transfer outputs can be output after being scaled. Setting of an
upper limit value smaller than the lower limit value is allowed, so reverse
scaling can also be carried out.

1--6
E5AK

1.1 Names of parts

1.3 Parameters and Menus

J Parameter types E5AK parameters are distributed between the following nine modes.
Protect mode
Manual mode
Level 0 mode
Level 1 mode
Level 2 mode
Setup mode
Expansion mode
Option mode
Calibration mode
The settings of parameters in each of seven modes (excluding the protect
mode and manual mode) can be checked and modified by selection on the
menu display.

F Protect mode This mode is used to limit use of the menu and A/M keys. The protect func-
tion is for preventing unwanted modification of parameters and switching
between the auto and manual operation.

F Manual mode In this mode, the controller can be switched manual operation. The
manipulated variable can be manipulated manually only in this mode.

F Level 0 mode Set the controller to this mode during normal operation. In this mode, you
may change the set point during operation, and stop and start operation.
You can also monitor (not change) the process value, ramp SP and manip-
ulated variable.

F Level 1 mode This is the main mode for adjusting control. In this mode, you can execute
AT (auto-tuning), and set alarm values, the control period and PID param-
eters.

F Level 2 mode This is the auxiliary mode for adjusting control. In this mode, you can set
the parameters for limiting the manipulated variable, switch between the
remote and local modes, switch between the SP modes, and set the loop
break alarm (LBA), alarm hysteresis and the digital filter value of inputs.

F Setup mode This is the mode for setting the basic specifications. In this mode, you can
set parameters that must be checked or set before operation such as the
input type, scaling, output assignments and direct/reverse operation.

F Expansion mode This is the mode for setting expanded functions. In this mode, you can set
ST (self-tuning), SP setting limiter, selection of advanced PID or ON/OFF
control, specification of the standby sequence resetting method, time for
automatic return to the monitoring display.

F Option mode This is the mode for setting option functions. You can select this mode only
when the option unit is set in the controller. In this mode, you can set the
communications conditions, transfer output and event input parameters

1--7
E5AK

CHAPTER 1 INTRODUCTION

to match the type of option unit set in the controller. Heater burnout latch
function, position-proportional travel time and remote SP scaling param-
eters are also located in this mode.

F Calibration mode This mode is provided so that the user can calibrate inputs and transfer
output.
When calibrating input, the selected input type is calibrated. Whereas,
transfer output can be calibrated only when the communications unit
(E53-AKF) is set in the controller.

J Selecting modes The following diagram shows the order in which modes are selected.
Power ON
A/M
1 second min. 1 second min.

Level 0 mode Manual mode

1 second min. A/M

Level 1 mode
1 second min.

1 second min.
Level 2 mode A/M + A/M +
1 second min. 1 second min.
1 second min.
Setup mode
Protect mode

1 second min.
Expansion mode A/M +
1 second min.
1 second min.
Option mode

1 second min.
Calibration mode

F Menu display · To select the menu display in any of the above modes (excluding the pro-
tect mode and manual mode), press the key for 1 second minimum.
If you select the desired mode using the or keys and press the
key, the top parameter in the specified mode is displayed.
· When you have selected the menu display, the previous mode is selected.
For example, if you selected the menu display while in the level 0 mode,
the No.2 display changes to [ ] as shown on the left.
· Protected modes cannot be selected. Also, the menu display does not
appear when modes are protected up to the level 1 mode.

F Level 0 to 2 · If you select [ ][ ] or [ ] in the menu display, the level 0,

modes level 1 and level 2 modes, respectively, are selected.
· These modes are selected with control still continuing.

1--8
E5AK

1.1 Names of parts

F Setup mode · If you select [ ][ ][ ] or [ ] in the menu display, the

F Expansion mode setup, expansion, option and calibration modes, respectively, are
F Option mode selected.
F Calibration mode · When these modes are selected, the control is reset. So, control outputs
and auxiliary output are turned OFF. When another mode is selected
while in these modes, reset is canceled.

F Protect mode · To set the controller to the protect mode or to return to the level 0 mode
from the protect mode, press the A/M key and key for 1 second mini-
mun simultaneously.

F Manual mode · To set the controller to the manual mode, press the A/M key for 1 second
minimun in the level 0 to 2 mode. To return to the level 0 mode from the
manual mode, press the A/M key for 1 second minimum.

J Selecting · When not in the manual mode, each press of the key switches the
parameter.
parameters
· If you press the key when at the final parameter, the display returns
to the first parameter.

Parameter Parameter Parameter Parameter

1 2 3 n

J Fixing settings · When you have changed a parameter setting, specify the parameter
using the or keys, and either leave the setting for at least two
seconds or press the key. This fixes the setting.
· When another mode is selected, the content of the parameters before the
mode was selected is fixed.
· When turning the power OFF, you must first fix the settings and param-
eter contents (by pressing the key or selecting another mode). The
settings and parameter contents are sometimes not changed by merely
pressing the or keys.

1--9
E5AK

CHAPTER 1 INTRODUCTION

1.4 About the Communications Function

The E5AK can be provided with a communications function that allows

you to check and set controller parameters from a host computer. If the
communications function is required, add on the communications unit.
For details on the communications function, refer to Chapter 6.

F RS-232C When using the communications function on the RS-232C interface, add
on the communications unit (E53-AK01).

F RS-422 When using the communications function on the RS-422 interface, add on
the communications unit (E53-AK02).

F RS-485 When using the communications function on the RS-485 interface, add on
the communications unit (E53-AK03).

1--10
E5AK

1.1 Names of parts

1.5 About Calibration

The E5AK controller is calibrated before shipment from the factory. So,
the user need not calibrate the E5AK controller during regular use.

However, if the E5AK controller must be calibrated by the user, use the
parameters provided for user to calibrate temperature input, analog input
(voltage, current) and transfer output.
Also, note that calibration data is updated to the latest value each time the
E5AK controller is calibrated. Calibration data set before shipment from
the factory cannot be returned to after calibration by the user.

F Calibrating The input type selected in the parameter is the item to be calibrated. The
inputs E5AK is provided with the following four calibration parameters.
· Thermocouple
· Platinum resistance thermometer
· Current input
· Voltage input
Two parameters are provided for thermocouple and voltage input.

F Calibrating trans- Transfer output can be calibrated when the communications unit
fer output (E53-AKF) is added on.

F Registering cal- When calibrating each item, the calibration data is temporarily regis-
ibration data tered. This data can be registered as final calibration data only when all
items have been newly calibrated. So, all items must be temporarily regis-
tered when calibrating the E5AK controller.
When registering data, information regarding whether or not calibration
has been carried out is also registered.

To calibrate these items, the user must prepare separate measuring

devices and equipment. For details on handling these measuring devices
and equipment, refer to the respective manuals.

For details, see Chapter 7 Calibration.

1--11
E5AK

CHAPTER 1 INTRODUCTION

1--12
E5AK

CHAPTER 2 PREPARATIONS

CHAPTER 2 2
PREPARATIONS
This chapter describes the operations you should carry out before turn-
ing the E5AK ON.

2.1 Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Draw-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Setting up the output unit . . . . . . . . . . . . . . 2-3
Setting up the option unit . . . . . . . . . . . . . . . 2-4
2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Panel cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3 Wiring Terminals . . . . . . . . . . . . . . . . . . . . . . 2-8
Terminal arrangement . . . . . . . . . . . . . . . . . 2-8
Precautions when wiring . . . . . . . . . . . . . . . 2-8
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

2--1
E5AK

CHAPTER 2 PREPARATIONS

2.1 Setting up

· On a standard type controller, set up the output units for control outputs
1 and 2 before mounting the controller.
· On a position-proportional type controller, the relay output unit is
already set. So, this setup operation unnecessary. (Do not replace with
other output units.)
· When setting up the output units, draw out the internal mechanism
from the housing and insert the output units into the sockets for control
outputs 1 and 2.

J Draw-out When drawing out the internal mechanism from the housing, prepare a
phillips screwdriver matched to the size of the screw on the lower part of
the front panel.
(1) Press down on the hook on the top of the front panel and turn the phil-
lips screwdriver to the left to loosen the screw on the lower part of the
front panel.

(2) Draw out the internal mechanism towards you holding both sides of
the front panel.

Fixing Screw for Tighten this screw by a torque of 0.3 to 0.5 N×m, or approx. 3 to 5 kgf×cm.
Front Panel

2--2
E5AK

2.1 Setting up

J Setting up the output unit

F Before setup · Check the type of the output unit you are about to set up.
· For details on types of output unit and main specifications, see page 2-9.

F Procedure (1) Check the positions of the sockets you are about to insert the output
units into as shown in the following diagram.

OUT1

OUT2

Bracket

(2) Insert the output unit for control output 1 into the socket “OUT1”
and the output unit for control output 2 into the socket “OUT2”.
(3) Fasten the output units with the bracket (accessory).

2--3
E5AK

CHAPTER 2 PREPARATIONS

J Setting up the option unit

F Before setup · Check the type of the option unit you are about to set up.
· For details on types of option unit and main specifications, see Appendix,
Model List (page A-11) and Appendix, Option Unit Ratings and Charac-
teristics (page A-4).
· For details on the relationship between units and terminals, see page
2-8.

F Procedure (1) Remove the power board and option boards in the order shown in the
following diagram.

(2) Insert the option units into the sockets for options 1 to 3. The follow-
ing diagram shows the relationship between option units and mount-
ing positions.
Option 1
E53--AKB: Event inputs 1/2
E53--AK01: RS--232C
E53--AK02: RS--422
Option 2 E53--AK03: RS--485
E53--AKF: Transfer output

Option 3
E53--AKB: Event inputs 3/4

(3) Mount the option boards and the power board in the order shown.

2--4
E5AK

2.2 Installation

2.2 Installation

J Dimensions
96j 13.5 100

PV

SV

112
91
RMT RSP MANU SUB1 SUB2

OUT1 OUT2 STOP AT

E5AK

J Panel cutout
110 mm min
Unit (mm)

120 mm min +0.8

92 0
· Recommended panel thickness is 1 to 8
mm.
· Maintain the specified vertical and hori-
+0.8
zontal mounting space between each con-
92 0 troller.
Controllers must not be closely mounted
vertically or horizontally.

2--5
E5AK

CHAPTER 2 PREPARATIONS

J Mounting (1) Insert the E5AK controller into the mounting hole in the panel.
(2) Fit the mounting bracket (accessory) into the fixing slots on the top
and bottom of the rear case.

(3) Tighten the mounting bracket screws alternately a little at a time

until the ratchet start to slide.

2--6
E5AK

2.2 Installation

F Setting up the terminal covers

· Fasten the terminal covers (E53-COV0809) to protect terminals.
· E5AK-VV2-500 controller is provided with terminal covers.
· Use E53-COV09 for terminals 1 to 10, and E53-COV08 for terminals 11
to 33.
· Fasten the terminal covers as follows by using the snap pins.

E5AK

E53-COV0809

· To remove the terminal covers, pull the edges of the snap pins.

2--7
E5AK

CHAPTER 2 PREPARATIONS

2.3 Wiring Terminals

J Terminal arrangement
AC100-240V ~
(AC/DC24V ) EV1/2
10 RS232C
TRSF 30 31 32 20 RS422
SOURCE
9 29 19 RS485
8 28 18
OUT1
7 27 17
CT
6 26 16 PTMR
OUT2
5 EV3/4 25 15
4 24 14
SUB1 TC
3 23 13 Pt
2 12 I
SUB2 RSP 22
V
1 21 33 11

TRSF : Transfer output

EV1 to 4 : Event inputs
PTMR : Potentiometer

J Precautions · Use ducts to separate input leads and power lines in order to protect the
when wiring controller and its lines from external noise.
· We recommend using solderless terminals when wiring the controller.
· Tighten the terminal screws using a torque no greater than 0.78 N·m,
or 8 kgf·cm max. Take care not to tighten the terminal screws too tightly.
· Use the following type of solderless terminals for M3.5 screws.

7.2mm max.

7.2mm max.

J Wiring In the following wiring diagrams, the left side of the terminal Nos. indi-
cates the inside of the controller
F Power supply · Input power to terminal Nos. 9 and 10. Power specifications are as follows:
AC100-240V , 50/60Hz, 16VA
10 30 31 32 20
9 29 19 (AC/DC24V , 50/60Hz, 12VA, 8W)
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13
2 22 12
1 21 33 11

2--8
E5AK

2.3 Wiring Terminals

F Sensor input · Connect the sensor input to terminal Nos. 11 to 14 and 33 as follows
according to the input type.
10 30 31 32 20
9 29 19 +
14 14 14 14
8 28 18
13 13 13 V 13
7 27 17 --
6 26 16 12 12 12 12 --
--
5 25 15 11 11 11 11 mA
+
4 24 14 33 33 33 33 +
3 23 13 Thermocouple Platinum Voltage input Current input
resistance
2 22 12 thermometer
1 21 33 11

F Control output · Terminal Nos. 7 and 8 are for control output 1 (OUT1), and terminal Nos.
5 and 6 are for control output 2 (OUT2). The following diagrams show the
10 30 31 32 20
available output units and their internal equalizing circuits.
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13
2 22 12
1 21 33 11

· With E53-VVV output units, about 2 V is output for one second after the
power is interrupted.
· The following table shows the specifications for each output unit.
Model Output Type Specifications
E53-R Relay 250 VAC, 5 A
E53-S SSR 75 to 250 VAC, 1 A
E53-Q Voltage (NPN) NPN : 12 VDC, 40 mA (with short-circuit protection)
E53-Q3 Voltage (NPN) NPN : 24 VDC, 20 mA (with short-circuit protection)
E53-Q4 Voltage (PNP) PNP : 24 VDC, 20 mA (with short-circuit protection)
E53-C3 4 to 20 mA 4 to 20 mA, Permissible load impedance: 600 W max., Resolution: Approx. 2600
E53-C3D 0 to 20 mA 0 to 20 mA, Permissible load impedance: 600 W max., Resolution: Approx. 2600
E53-V34 0 to 10 V 0 to 10 VDC, Permissible load impedance: 1 kW min., Resolution: Approx. 2600
E53-V35 0 to 5 V 0 to 5 VDC, Permissible load impedance: 1 kW min., Resolution: Approx. 2600

With E5AK-PRR2 controllers, relay output (250 VAC, 1 A) is fixed.When

replacing the output unit, use the E53-R. The following diagrams show the
relationship between terminals and open/close relay settings.

8 6

7 5
Open Close

2--9
E5AK

CHAPTER 2 PREPARATIONS

F Auxiliary output · Terminal Nos.3 and 4 are for auxiliary output 1 (SUB1) and terminal
10 30 31 32 20
Nos.1 and 2 are for auxiliary output 2 (SUB2).
9 29 19 · The internal equalizing circuits for the auxiliary outputs are as follows:
8 28 18
4 2
7 27 17
6 26 16
5 25 15 3 1
4 24 14 Auxiliary Auxiliary
3 23 13 output 1 output 2
2 22 12
· Output specifications are as follows:
1 21 33 11
SPST-NO, AC250V, 3A

F CT input/ · When using the HBA function on the E5AK-AA2 controller, connect CT
Potentiometer input (CT) to terminal Nos.15 to 17. When monitoring the valve opening
on the E5AK-PRR2 controller, connect the potentiometer (PTMR) to
10 30 31 32 20
terminal Nos.15 to 17. Connect each of these inputs as follows:
9 29 19
8 28 18 O
17 17
7 27 17 W
16 CT 16
6 26 16 C
5 25 15 15 15
4 24 14 CT input Potentiometer
3 23 13
2 22 12 · For details on CT inputs, see Appendix, About Current transformer.
1 21 33 11 · For details on the potentiometer, see the Instruction Manual for the
valve connected to the controller. The variable resistance range is 100
W to 2.5 kW.

F Remote SP input · Connect an input (RSP) to be used as the remote SP to terminal Nos.21
10 30 31 32 20 and 22.
9 29 19 · Only 4 to 20 mA inputs can be connected. Connect the input as follows:
8 28 18 +
22
7 27 17
6 26 16 4 to 20 mA
5 25 15 21
--
4 24 14
3 23 13
2 22 12
1 21 33 11

About the power The E5AK has independent power supplies for A B C
blocks each of the terminal blocks shown on the right.
10 30 31 32 20
9 29 19
8 28 18
B 7 27 17
6 26 16
5 C 25 15
4 24 14
E 3 23 13
2 22 12
1 21 33 11

F D

2--10
E5AK

2.3 Wiring Terminals

F Event input · Connect event inputs 1 and 2 (EV1/2) to terminal Nos.18 to 20, and event
10 30 31 32 20
events 3 and 4 (EV3/4) to terminal Nos.24 to 26. However, note that ter-
9 29 19 minal Nos.18 to 20 cannot be used on controllers having a communica-
8 28 18 tions function.
7 27 17 · Connect the event inputs as follows:
6 26 16 + +
5 25 15 EV1 20 EV3 26
+ +
4 24 14 EV2 19 EV4 25
3 23 13 COM 18 -- COM 24 --
2 22 12
Event input 1 and 2 Event input 3 and 4
1 21 33 11
Terminals 18 and 24 (COM) are connected internally.
· Use event inputs under the following conditions:

Contact input ON: 1 kW max., OFF: 100 kW min.

No-contact input ON: residual voltage 1.5 V max.,
OFF: leakage current 0.1 mA max.

· Polarities during no-contact input are as follows:

+ +
EV1 20 EV3 26
+ +
EV2 19 EV4 25

COM 18 COM 24
-- --
Event input 1 and 2 Event input 3 and 4

F Transfer output · Connect transfer output (TRSF) to terminal Nos. 29 and 30.
· The internal equalizing circuit for transfer output is as follows:
+
30
4 to 20mA L
29
--

· Transfer output specifications are as follows:4 to 20 mA,

Permissible load impedance: 600 W max.,
Resolution: Approx. 2600

F Communications · Terminal Nos.18 to 20, 31 and 32 can be used only on controllers having
a communications units (E53-AK01/02/03).
· For details on wiring, see Chapter 6, Using the Communications Func-
tion.

2--11
E5AK

CHAPTER 2 PREPARATIONS

2--12
E5AK

CHAPTER 3 BASIC OPERATION

CHAPTER 3 3
BASIC OPERATION
This chapter describes an actual example for understanding the basic
operation of the E5AK.

3.1 Convention Used in this Chapter . . . . . . . . 3-2

3.2 Setting Input Specifications . . . . . . . . . . . . . 3-4
Input type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.3 Setting Output Specifications . . . . . . . . . . . 3-6
Output assignments . . . . . . . . . . . . . . . . . . . . 3-6
Direct/reverse operation . . . . . . . . . . . . . . . . 3-7
Control period . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4 Setting Alarm Type . . . . . . . . . . . . . . . . . . . . 3-9
Alarm type . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Alarm value . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Alarm hysteresis . . . . . . . . . . . . . . . . . . . . . . . 3-10
Close in alarm/open in alarm . . . . . . . . . . . . 3-10
3.5 Protect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
A/M key protect . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.6 Starting and Stopping Operation . . . . . . . . 3-13
3.7 Adjusting Control Operation . . . . . . . . . . . . 3-14
Changing the set point . . . . . . . . . . . . . . . . . 3-14
Manual operation . . . . . . . . . . . . . . . . . . . . . . 3-14
Auto-tuning (A.T.) . . . . . . . . . . . . . . . . . . . . . 3-16

3--1
E5AK

CHAPTER 3 BASIC OPERATION

3.1 Convention Used in this Chapter

This chapter describes basic E5AK operations such as how to set up

parameters, start and stop operation, and adjusting control operation.
For more complex control examples, refer to Chapter 4 Applied Operation
and Chapter 5 Parameters.

F Basic Operation The following diagram shows the basic operation flow.
Flow Power ON

Setup
Setting input specifications

Setting output specifications

Setting alarm output

Protecting parameters

Operation
Start

Adjustment

Stop

Power OFF

3--2
E5AK

3.1 Convention Used in this Chapter

F Setup This description assumes that the controller is operated under the follow-
ing conditions.
· A humidity sensor of output 4 to 20 mA is connected to the controller.
The measuring range of the humidity sensor is set to 10 to 95%.
· A humidifier is controlled by pulse output to maintain humidity at a
constant 60%.
· An alarm is output when the humidity exceeds the upper limit value
(70%) or lower limit value (50%).
· Output unit: relay type (E53-R) for OUT1.

Humidity sensor

Humidifier

Control target
AC100-240V ~
(AC/DC24V )

SOURCE 10 30 31 32 20
9 29 19
OUT1 8 28 18
7 27 17
6 26 16
5 25 15
SUB1 4 24 14
Alarm 1
3 23 13
(deviation --
upper-and lower-limit) 2 22 12
1 21 33 11 4 to 20mA
E5AK-AA2 +
(OUT1 : E53-R)

3--3
E5AK

CHAPTER 3 BASIC OPERATION

3.2 Setting Input Specifications

J Input type · Set the type No. (0 to 21) in the “input type” parameter. The factory set-
ting is “2: K1 (thermocouple).”
· For details on input types and setting ranges, see page 5-26.

J Scaling · When the voltage input and current input are selected, scaling matched
to the control is required.
· The “scaling upper limit”, “scaling lower limit” and “decimal point”
parameters (setup mode) are use for scaling.
· The “scaling upper limit” parameter sets the physical quantity to be
expressed by the upper limit value of input, and the “scaling lower limit”
parameter sets the physical quantity to be expressed by the lower limit
value of input. The “decimal point” parameter sets the number of digits
past the decimal point.
· The following figure shows scaling example of 4 to 20 mA input. After
scaling, the humidity can be directly read. In this case, the “decimal
point” parameter is set to “1”.
Readout (humidity)

Scaling upper limit

value (95.0%)

Scaling lower limit

value (10.0%)

Input (4 to 20 mA)
0
100%FS
F Input shift · When temperature input is selected, scaling is not required. This is
because input is treated as the “temperature” as it is matched to the
input type. However, note that the upper and lower limit values of the
sensor can be shifted. For example, if both the upper and lower limit val-
ues are shifted by 1.2_C, the process value (before shift) is regarded as
201.2_C after shift when input is 200_C before shift.
· To set input shift, set shift values in the “input shift upper limit” and
“input shift lower limit” parameters (level 2 mode).
Temperature

Input shift upper limit value

Upper limit value

After shift
Before shift

Input shift lower

Lower limit value limit value
Input (%FS)
0
100

About the tempera- To switch the temperature unit from “_C” to “_F” for temperature unit, switch the
ture unit setting of the _C/_F selection” parameter to [ ] from [ ].

3--4
E5AK

3.2 Setting Input Specifications

In this example, let’s set the parameters as follows:

Setting Example
“input type” = “17 (4 to 20 mA)”
“scaling upper limit value” = “950”
“scaling lower limit value” = “100”
“decimal point” = “1”

(1) Select the menu display, and select [ ] (setup mode) using the
or keys. For details on selecting the menu display, see page
1-8.
1 second min.
(2) Press the key to enter the setup mode. The top parameter in the
setup mode [ ] “input type” is displayed. The parameter default
is “2”.
(3) Press the key until the display indicates “17”.
(4) Press the key to fix the set value. The display changes to [ ]
(“scaling upper limit value” parameter). The parameter default is
“100”.
(5) Press the key until the display indicates “950”.
(6) Press the key to fix the set value. The display changes to [ ]
(“scaling lower limit value” parameter). The parameter default is “0”.
(7) Press the key until the display indicates “100”.
(8) Press the key to fix the set value. The display changes to [ ]
(“decimal point” parameter). The parameter default is “0”.
(9) Press the key until the display indicates “1”.

3--5
E5AK

CHAPTER 3 BASIC OPERATION

3.3 Setting Output Specifications

Some output specifications are different according to controller type,

standard or position-proportional. The following table summarizes which
output-related parameter settings are supported.
Position-
Parameter Standard proportional
Type Type
Control output 1 assignment F
Control output 2 assignment F
Auxiliary output 1 assignment F F
Auxiliary output 2 assignment F F
Direct/reverse operation F F
Control period (heat) F
Control period (cool) F
(F Indicates that an output specification is supported.)

J Output assignments
Output assignments are described according to controller type.
F Standard type · Ten output are supported :
control output (heat)
control output (cool)
alarm outputs 1 to 3
HBA
LBA, and
error 1 (input error)
error 2 (A/D converter error)
error 3 (RSP input error).
These functions are assigned to control outputs 1 and 2, and auxiliary
output 1 and 2.
· Restrictions on assignment destination are placed on some of the out-
puts. The following table shows where outputs may be assigned to.
Assignment Control Output Auxiliary Output
Destination
Output Function 1 2 1 2
Control output (heat) F F
Control output (cool) F F
Alarm 1 F F F F
Alarm 2 F F F F
Alarm 3 F F F F
HBA F F F F
LBA F F F F
Error 1; Input error F F
Error 2; A/D converter error F F
Error 3; RSP input error F F

With control output (cool), the conditions for switching from standard control
to heating and cooling control are reached when the output function is assigned
at the cooling side during heating and cooling control.
In other words, heating and cooling control is carried out when control
output (cool) is assigned, and standard control is carried out when out-
put is not assigned. For details on heating and cooling control, see 4.1
Selecting the Control Method (page 4-2).

3--6
E5AK

3.3 Setting Output Specifications

· Factory settings are as follows:

control output 1 = Control output (heat)
control output 2 = Alarm 1
auxiliary output 1 = Alarm 2
auxiliary output 2 = Alarm 3.
· Output assignments are set in the “control output 1 assignment”, “con-
trol output 2 assignment”, “aux output 1 assignment” and “aux output
2 assignment” parameters (setup mode).

F Position-propor- · Position-proportional type controllers support six output functions.

tional type These are assigned to auxiliary outputs 1 and 2.
· Restrictions on assignment destinations are placed on some of the out-
puts. The following table shows where outputs may be assigned to.
Assignment Control Output Auxiliary Output
Destination
Output Function 1 2 1 2
Alarm 1 F F
Alarm 2 F F
Alarm 3 F F
Error 1 : Input error F F
Error 2 : A/D converter error F F
Error 3 : RSP input error F F

J Direct/reverse · “Direct operation” (or normal operation) refers to control where the
operation manipulated variable is increased according to the increase in the pro-
cess value. Alternatively, “reverse operation” refers to control where the
manipulated variable is decreased according to the decrease in the pro-
cess value.
For example, when the process value (PV), is lower than the set point
(SP), in a heating control system, the manipulated variable increases by
the difference between the PV and SP values.
Accordingly, this becomes “reverse operation” in a heating control system.
Alternatively, this becomes “direct operation” in a cooling control system.
· Direct/reverse operation is set in the [ ]“direct/reverse operation”
parameter (setup mode).

J Control period · When the output unit is pulse output such as relay output, set the pulse
output cycle (control period). Though a shorter pulse period provides
better control performance, the control period should be set taking the
life expectancy of the output unit into consideration when the output
unit is relay.
· The control period is set in the “control period (heat)” parameter (level
1 mode). Factory setting is “20:20 seconds.”
· The “control period (cool)” output function is not allocated. So, the
“control period (cool)” parameter cannot be set.

3--7
E5AK

CHAPTER 3 BASIC OPERATION

In this example, let’s set the parameters as follows:

Setting Example
“control output 1 assignment” = “control output (heat)”
“control output 2 assignment” = “alarm output 1”
“direct/reverse operation” = “reverse operation”
“control period” = “20 secs”
“run/stop” = “run”
All of the above settings in this example are factory settings. So, in this
example, we are only going to check the parameter settings.

(1) Select the menu display, and select [ ] (setup mode) using the
or keys. For details on selecting the menu display, see page
1 second min.
1-8.
(2) Press the key to enter the setup mode. The top parameter in the
setup mode [ ] “input type” is displayed. In this example, the
parameter setting is “17: 4 to 20 mA.”
(3) Press the key until [ ] (“control output 1 assignment”
parameter) is displayed. The parameter default is [ ].
(4) As the setting in this example is to be left as it is, press the key.
The display changes to [ ] (“control output 2 assignment”
parameter). The parameter default is [ ].
(5) As the setting in this example is to be left as it is, press the key
until [ ] (“direct/reverse operation” parameter) is displayed.
The parameter default is [ ].
1 second min. (6) As the setting in this example is to be left as it is, press the or
keys to select [ ] (level 1 mode). For details on selecting the menu
display, see page 1-8.
(7) Press the key to enter the level 1 mode. The top parameter in the
level 1 mode [ ] “AT execute/cancel” is displayed.
(8) Press the key until [ ] (“control period” parameter) is dis-
1 second min. played. The parameter default is “20”. As the setting in this example
is to be left as it is, quit key operation.

3--8
E5AK

3.4 Setting Alarm Type

3.4 Setting Alarm Type

· Three alarm outputs are supported: alarms 1 to 3. Of these, only the

alarm assigned as the output can be used.
· Alarm output conditions are determined according to the combination
of the “alarm type”, “alarm value” and “alarm hysteresis” parameter
settings.
· The contact conditions when alarm output is ON can be set to “open”
or “closed” in the “close in alarm/open in alarm” parameter.

J Alarm type · The following table shows the alarm types supported by the E5AK con-
troller and their respective operations.
Alarm Output Operation
Alarm Type
When X is positive When X is negative
Upper-and lower-limit alarm X X
1 ON Always ON
(deviation) OFF SP
X X
2 Upper-limit alarm (deviation) ON ON
OFF OFF
SP SP
X X
3 Lower-limit alarm (deviation) ON ON
OFF OFF
SP SP

Upper-and-lower-limit range X X
4 ON Always OFF
alarm (deviation) OFF
SP
Upper-and-lower-limit alarm X X
5 with standby sequence ON Always OFF
(deviation) OFF
SP

Upper-limit alarm with X X

6 ON ON
standby sequence (deviation) OFF OFF
SP SP

Lower-limit alarm with X X

7 ON ON
standby sequence (deviation) OFF OFF
SP SP

Absolute-value upper-limit X X
8 ON ON
alarm OFF OFF
0 0

Absolute-value lower-limit X X
9 ON ON
alarm OFF OFF
0 0

Absolute-value upper-limit X X
10 ON ON
alarm with standby sequence OFF OFF
0 0

Absolute-value lower-limit X X
11 alarm with standby sequence ON ON
OFF OFF
0 0

· Alarm types are set independently for each alarm in the “alarm 1 to 3”
parameters (setup mode). Factory setting is “2: Upper-limit alarm (devi-
ation)”.

J Alarm value · Alarm values are indicated by “X” in the table above. Alarm output
operation differs according to whether the value of the alarm is positive
or negative.
· Alarm values are set independently for each alarm in the “alarm value
1 to 3” parameters (level 1 mode). Factory setting is “0”.

3--9
E5AK

CHAPTER 3 BASIC OPERATION

J Alarm hysteresis · The hysteresis of alarm outputs when alarms are switched ON/OFF can
be set as follows.
Upper limit alarm Lower limit alarm

Alarm hysteresis Alarm hysteresis

ON ON

OFF OFF
Alarm value Alarm value

· Alarm hysteresis is set independently for each alarm in the “alarm 1 to

3 hysteresis” parameters (level 2 mode). Factory setting is “0.02:
0.02%FS”.

F Standby · “Standby sequence” is a function for unconditionally turning alarm out-

sequence put OFF when the process value has left the alarm range once and it next
enters the alarm range.
· For example, when the alarm type is set to “deviation lower limit,” gener-
ally the process value is within the alarm range, and alarm output
become ON as it is as the process value when the power is turned ON is
smaller than the set point. However, if the alarm type is set to “deviation
lower limit with standby sequence”, alarm output first becomes ON
when the process value exceeds the alarm setting value to leave the
alarm range and once again falls below the alarm value.

J Close in alarm/open in alarm

· When the controller is set to “close in alarm,” the status of the alarm out-
put function is output as it is. When set to “open in alarm,” the status of
the alarm output function is output inverted.
Alarm Output Output LED
ON ON Lit
Close in alarm
OFF OFF Not lit
ON OFF Lit
Open in alarm
OFF ON Not lit
· Alarm type and close in alarm (normally open)/open in alarm (normally
close) can be set independently for each alarm.
· Close in alarm/open in alarm is set in the “alarm 1 to 3 open in alarm”
parameters (setup mode). Factory setting is [ ] “close in alarm”.

F Summary of The figure below visually summarizes the above description of alarm
alarm operations operations (when alarm type is set to “lower limit alarm (deviation) with
standby sequence”):
Alarm type: lower limit alarm (deviation)
with standby sequence

PV
Alarm value
Alarm hysteresis

Time
Standby sequence
canceled Close (ON)
Alarm output Open (OFF)
(close in alarm)

3--10
E5AK

3.4 Setting Alarm Type

When a set point for a temperature exceeds 10%, alarm1 will be output.
Setting Example
In this example, let’s set the parameters as follows:
“alarm type 1” = “1: (deviation upper-and lower-limit)”
“alarm value 1” = “10”
“alarm hysteresis” = “0.20”
“close in alarm/open in alarm”= “ : close in alarm”

Meanings of parameters, “alarm histeresis” and “open in alarm/close in

alarm” are the same settings at the shipment, so settings for operations
are omitted.
(1) Select the menu display, and select [ ] (setup mode) using the
or keys. For details on selecting the menu display, see page 1-8.
1 second min. (2) Press the key to enter the setup mode. The top parameter in the
setup mode [ ] “input type” is displayed. In this example, the
parameter setting is “17: 4 to 20 mA”.
(3) Press the key until [ ] (“alarm type 1” parameter) is dis-
played. The parameter default is “2: deviation upper limit”.
(4) Press the key to return to “1: deviation upper-and lower-limit”.
(5) Select the menu key, and select [ ] (level 1 mode) using the
or keys. For details on selecting the menu display, see page 1-8.
(6) Press the key to enter the level 1 mode. The top parameter in the
1 second min.
level 1 mode [ ] “AT execute/cancel” is displayed.
(7) Press the key until [ ] (“alarm value 1” parameter) is dis-
played.
(8) In this example, the parameter setting is “0.0” so press the key
until “10.0” is displayed.

1 second min.

About the Decimal The decimal point of the alarm value conforms to the setting of the “decimal point”
Point of the Alarm parameter (setup mode). In this example, the “decimal point” parameter is set to
Value “1”. (During temperature input, the decimal point of the alarm value conforms to
the set sensor.)

3--11
E5AK

CHAPTER 3 BASIC OPERATION

3.5 Protect Mode

J Security · This parameter allows you to protect until start of operation parameters
that do not change during operation to prevent unwanted modification.
· The set value of the “security” (protect) parameter specifies the range
of protected parameters.
· When this parameter is set to “0”, parameters are not protected.
· When this parameter is set to “1” to “3”, the number of modes that can
be displayed on the menu display is limited.
When set to “1”, level 0 to 2, setup, expansion and option modes only can
be selected. When set to “2”, only level 0 to 2 modes can be selected. When
set to “3”, only level 0 and 1 modes can be selected.
· When this parameter is set to “4” to “6”, operations in only the level 0
mode can be selected, and the mode is not displayed on the menu display.
· When this parameter is set to “5”, only the “PV/SP” parameter can be
used.
· When this parameter is set to “6”, only the “PV/SP” parameter can be
used. (The set point can not change.)
· Default is “1”.

J A/M key protect · This parameter disables use of the A/M key during operation. For exam-
ple, if you protect use of the A/M key by the “A/M key protect” parameter
(protect mode) during auto operation, the controller cannot be set to the
manual mode, preventing manual operation of the controller during
operation.

· Let’s protect the setup, expansion, option and calibration modes. Set the
Setting Example
parameters as follows:
“security” = “2: Usable only in level 0 to 2 modes”

A/M (1) Press for 1 second minium the A/M and keys simultaneously, the
controller enters the protect mode.
(2) In the protect mode, the top parameter in the protect mode “security”
is displayed. The parameter default is “1”. Press the key to change
the parameter setting to “2”.
(3) Press for 1 second minium the A/M and keys simultaneously, the
display changes to the “PV/SP monitor” parameter (level 0 mode).
A/M

3--12
E5AK

3.6 Starting and Stopping Operation

3.6 Starting and Stopping Operation

· You can start and stop operation by changing the setting of the “run/
stop” parameter (level 0 mode).
· You can switch the RUN/STOP function up to 100,000 times.
· To stop operation, set the “run/stop” parameter to [ ] (stop). In a
stop state, the “STOP” LED lights.
· Operation cannot be stopped during auto-tuning.

F Manipulated vari- · On a standard type controller, specify the manipulated variable (---5.0 to
able at stop 105.0%) in the “MV at stop” parameter (level 2 mode) to output the
manipulated variable during stop.
Factory-set to “0.0:0.0%”.
· On a position-proportional type controller, you can select either of the
open, close or hold status. In an open status, only control output 1 is ON.
In a close status, only control output 2 is ON. In a hold status, both con-
trol outputs 1 and 2 are OFF. Factory-set to “hold.”

The following example describes the procedure to follow to stop control

Setting Example
during operation of the controller.

(1) Select the menu display, and select [ ] (level 0 mode) using the
or keys. For details on selecting the menu display, see page
1-8.
1 second min.
(2) Press the key to enter the level 0 mode. The PV and SP are dis-
played.
(3) Press the key until [ ] (“run/stop” parameter) is displayed.
(4) Press the key to select [ ] (stop). The “STOP” LED lights,
and operation stops.

To resume operation, follow the above procedure to select [ ] (“run”).

The “STOP” LED goes out and operation starts.

Using Event Input Using the E53-AKB, run/stop can be selected by event input. For details on how to
use event input, see 4.3 How to Use Event Input, page 4--- 8.

3--13
E5AK

CHAPTER 3 BASIC OPERATION

3.7 Adjusting Control Operation

J Changing the set · You can change the set point in the “set point” parameter (level 0 mode).
point · However, note that you cannot change the set point when the “security”
parameter (protect mode) is set to “6”.
· To change the set point, press the or keys to select the desired
value. If you leave the setting for two seconds, the set point is updated
to the new setting.

In the following example, let’s change the temperature set point from
Setting Example
“60_C” to “50_C”.

(1) Select the PV/SP monitor display.

(2) Press the key to change the setting to “50.0: 50.0_C”.

J Manual operation · On standard type controller, the manipulated variable is controlled, and
on a position-proportional type controller, the valve opening is con-
trolled.
· To set manual operation and manually set the manipulated variable or
the valve opening, press for 1 second minimum the A/M key. The control-
ler enters the manual mode.

F Standard type · The process value is displayed on the No.1 display, and the manipulated
variable is displayed on the No.2 display. The manipulated variable
Process value
(heat) is also displayed on the bar graph in 10% increments.
Manipulated · To change the manipulated variable, press the or keys. After
variable
two seconds, the manipulated variable is updated to the new setting.
Bar graph [MANU] LED
· Other modes cannot be selected while in the manual mode. To select
other modes, press for 1 second minimum the A/M key. The manual mode
is quit.
· The automatic return of display function does not work while in the
manual mode.
· When switching between manual and auto operation, the manipulated
variable is subject to balance-less, bump-less operation.
· If the power is interrupted during manual operation, manual operation
is resumed at the manipulated variable at power interruption when the
power is reset.
· You can switch the AUTO/MANUAL function up to 100,000 times.

Balance-less, To prevent sudden changes in the manipulated variable when switching between
Bump-less Opera- manual and auto operation, operation is resumed using the value that was active
tion immediately before operation was switched, and the value is brought gradually
closer to the value immediately after operation was switched.

3--14
E5AK

3.7 Adjusting Control Operation

The following diagram summarizes manual operation.

Manipulated variable (%)
Balance-less, bump-less points

Time
0
Manipulated variable OFF ON
Manual switched
Power inter-
A/M ruption
Auto

F Position-proportional type
· When a potentiometer is connected to the controller, the process value
is displayed on the No.1 display, and the valve opening is displayed on the
No.2 display. The valve opening is also displayed on the bar graph in 10%
increments.
When a potentiometer is not connected to the controller, [----] is dis-
played on the No.2 display, and nothing is displayed on the bar graph.
Potentiometer connected Potentiometer not connected

Process value Process value

Valve opening Valve opening

Bar graph [MANU] LED Bar graph [MANU] LED

· When you press the key, the open side becomes ON. When you press
the key, the close side becomes ON.
· Other modes cannot be selected while in the manual mode. To select
other modes, press for 1 second minimum the A/M key. The manual mode
is quit.
· The automatic return of display function does not work while in the
manual mode.
· You can switch the AUTO/MANUAL function up to 100,000 times.

3--15
E5AK

CHAPTER 3 BASIC OPERATION

J Auto-tuning · AT (auto-tuning) cannot be executed while operation is canceled or dur-

ing ON/OFF control.
(A.T.)
· When you execute auto-tuning, the optimum PID parameters are auto-
matically set by forcibly changing the manipulated variable to calculate
the characteristics (called the “limit cycle method”) of the control target.
During auto-tuning, the AT LED flashes.
· 40%AT or 100%AT can be selected by the limit cycle of MV change width.
Specify [ ] or [ ], respectively, in the “AT execute/cancel” pa-
rameter (level 1 mode).
· During heating and cooling control and with position-proportional
type, only 100%AT can be executed. (So, [ ] (40%AT) will not be
displayed.)
· To cancel AT execution, specify [ ] (“AT cancel”).

F 40%AT In order to set the limit cycle of MV change width to 40%, select 40%AT
to execute auto-tuning with fluctuations in the process value kept to a
minimum. However, note that auto-tuning takes longer to execute
compared with 100%AT.
The timing by which limit cycles are generated varies according to wheth-
er or not the deviation (DV) at the start of AT execution is 10% full-scale
or less.

Deviation at start of AT Deviation at start of AT

execution ≧ 10% full-scale execution < 10% full-scale

Limit cycle of MV change Limit cycle of MV change

width 40% width 40%

Set point Set point

Deviation 10% Deviation 10%

full-scale full-scale

Time Time
Start of AT End of AT Start of AT End of AT
execution execution

F 100%AT In order to set the limit cycle of MV change width to 100%, select 100% AT
to shorten the AT execution time without worrying about fluctuations in
the process value.

Limit cycle of MV
change width 100%

Set point

Time
Start of AT End of AT
execution

3--16
E5AK

3.7 Adjusting Control Operation

In this example, let’s execute 40%AT.

Setting Example

(1) Select [ ] (level 1 mode) using the or keys. For details on

selecting the menu display, see page 1-8.

1 second min.
(2) Press the key to enter the level 1 mode. The top parameter in the
setup mode [ ] “AT execute/cancel” is displayed. In this example,
the parameter setting is [ ] “AT cancel”
(3) Press the key to specify [ ].
(4) The AT LED flashes, and AT execution starts. When the AT LED goes
out (end of AT execution), the parameter automatically returns to
[ ] (“AT cancel”).
AT execute

In addition to AT, the E5AK is also provided with fuzzy self-tuning

(ST) that allows automatic calculation of the PID parameters
suited to the control target. However, note that the ST function op-
erates only during standard control by temperature input. For fur-
ther information regarding the ST, please see page 5-34 and A-14.

About PID Parame- When control characteristics are already known, the PID parameters can be set
ters directly to adjust control.
PID parameters are set in the “proportional band” (P), “integrated time” (I) and
“derivative time” (D) parameters (level 1 mode).
For details on the setting ranges of these parameters, see chapter 5 Level 1 Mode
(page 5-13).

3--17
E5AK

CHAPTER 3 BASIC OPERATION

3--18
E5AK

CHAPTER 4 APPLIED OPERATION

CHAPTER 4 4
APPLIED OPERATION
This chapter describes each of the parameters required for making full
use of the features of the E5AK. Read this chapter while referring to the
parameter descriptions in chapter 5.

4.1 Selecting the Control Method . . . . . . . . . . . . 4-2

Heating and cooling control . . . . . . . . . . . . . 4-2
Position-proportional control . . . . . . . . . . . . 4-3
ON/OFF control . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.2 Operating Condition Restrictions . . . . . . . . 4-5
Manipulated variable restrictions . . . . . . . . 4-5
Set point limiter . . . . . . . . . . . . . . . . . . . . . . . 4-6
SP ramp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.3 How to Use Event Input . . . . . . . . . . . . . . . . 4-8
Event input assignments . . . . . . . . . . . . . . . 4-8
Multi-SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Other event input functions . . . . . . . . . . . . . 4-10
4.4 How to Use the Remote SP . . . . . . . . . . . . . . 4-11
Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
SP mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Remote SP monitor . . . . . . . . . . . . . . . . . . . . 4-12
SP tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Operating conditions . . . . . . . . . . . . . . . . . . . 4-12
4.5 How to Use the Heater Burnout Alarm . . . 4-13
Heater burnout detection . . . . . . . . . . . . . . . 4-13
Operating conditions . . . . . . . . . . . . . . . . . . . 4-13
How to calculate
the heater burnout set value . . . . . . . . . . . . 4-14
4.6 LBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.7 How to Use Transfer Output . . . . . . . . . . . . 4-17

4--1
E5AK

CHAPTER 4 APPLIED OPERATION

4.1 Selecting the Control Method

When selecting the control method, set the parameters according to the
following table. (Parameters are factory-set to heating control.)
Parameter
Control output 1 Control output 2 Direct/Reverse
Control assignment assignment operations
Method
Heating control
(Standard)
Control output (heat) - Reverse operation

Cooling control
(Standard)
Control output (heat) - Direct operation

Heating and cooling

Control output (heat) Control output (cool) Reverse operation
control
For details on how to assign outputs, see 3.3 Setting Output Specifications
(page 3-6).
J Heating and · When heating and cooling control is selected, the “deadband” and “cool-
ing coefficient” parameters can be used.
cooling control
F Dead band The dead band is set with the set point as its center. The dead band width
is the set value of the “dead band” parameter (level 1 mode). Setting a posi-
tive value produces a dead band, while setting a negative value produces
an overlap band.
Dead band: dead Overlap band: dead
Output band width = positive Output band width = negative

Heating Cooling Heating Cooling

side side side side
PV PV
0 0
Set point Set point

F Cooling coeffi- If the heating and cooling characteristics of the control target greatly dif-
cient fer, preventing satisfactory control characteristics from being obtained by
the same PID parameters, adjust the proportional band (P at cooling side)
using the cooling coefficient to balance control between the heating and
cooling sides. In heating and cooling control, P at the heating or cooling
side is calculated by the following formula:
Heating side P = P; Cooling side P = cooling coefficient ¢ P
F Manipulated vari- · In heating and cooling control, the manipulated variable output that is
able at stop output when controller operation is stopped is dependent on the set
value of the “MV at stop” parameter (level 2 mode) in the same way as
for standard control.
· However, note that in heating and cooling control, the manipulated vari-
able at the cooling side is treated as a negative value for the sake of conve-
nience. When the manipulated variable at STOP is a negative value, the
manipulated variable is output to only the cooling side, and when a posi-
tive value, the manipulated variable is output to only the heating side.
The factory setting is “0”. If the controller is operated using the factory
setting, the manipulated variable is not output to both the heating and
cooling sides.

Switching with When the overlap band is set, the bumpless function that operates when switching
Manual operation between manual and automatic operation may not work.

4--2
E5AK

4.1 Selecting the Control Method

J Position-propor- · Use the position-proportional type controller for position-proportional

control.
tional control
· On a position-proportional type controller, control output 1 is used for
open output, and control output 2 is used for close output. Accordingly,
control outputs 1 and 2 cannot be used as output assignments. Special
output units are already set on position-proportional type controllers.
· On a position-proportional type controller, the following functions are
disabled.
ST
MV limiter
P and PD control
40% AT
LBA
HBA
ON/OFF control

F Travel time · The travel time is factory-set to “30 seconds.”

· To change the travel time, either set in the “travel time” parameter
(option mode), or execute motor calibration in the “motor calibration”
parameter (option mode).

F Valve opening · The valve opening can be monitored when a potentiometer is connected
monitor to the controller. However, be sure to execute motor calibration after
connecting the potentiometer.
· The monitored valve opening is displayed on the bar graph in 10% incre-
ments.

F Manipulated vari- · Open, close or hold can be selected as output at stop or PV error. Set these
able at stop/PV outputs in the “manipulated variable at stop” or “manipulated variable
error at PV error” parameters (level 2 mode).

F Other functions · Set the dead band in the “position-proportional dead band” parameter
(level 1 mode).
· Set the open/close hysteresis in the “open/close hysteresis” parameter
(level 1 mode).

Open/close hysteresis

Dead band

ON

OFF

MV--Valve opening
-100% 0 100%

4--3
E5AK

CHAPTER 4 APPLIED OPERATION

J ON/OFF control · Switching between advanced PID control and ON/OFF control is car-
ried out by the “PID / ON/OFF” parameter (expansion mode). When this
parameter is set to [ ], advanced PID control is selected, and when
set to [ ], ON/OFF control is selected. Default is [ ].
· During position-proportional control, ON/OFF control cannot be
selected.
F Hysteresis · In ON/OFF control, hysteresis is provided in the program when switch-
ing between ON and OFF to stabilize operation. The hysteresis width
provided during ON/OFF control is simply referred to as “hysteresis.”
Control output (heat) and control output (cool) functions are set in the
“hysteresis (heat)” and “hysterisis (cool)” parameters, respectively.
· In standard control (heating or cooling control), hysteresis can be set
only for the heating side.
Hysteresis (heat)

ON

OFF PV

Set point
· In heating and cooling control, a dead band can be set. So, 3-position con-
trol is made possible.
Dead band

Hysteresis (heat) Hysteresis (cool)

ON
Heating Cooling side
side
OFF PV
Set point

Parameters Symbol Parameter Name: Mode Description

Control output 1 For specifying control method
assignment : Setup
Control output 2 For specifying control method
assignment : Setup
Direct/Reverse For specifying control method
operation : Setup
Dead band : Level 1 Heating and cooling control
Cooling coefficient : Level 1 Heating and cooling control
MV at stop : Level 2 Manipulated variable when control
operation is stopped
MV at PV error : Level 2 Manipulated variable when control
operation is PV error
Travel time : Option Position-proportional control
Motor calibration : Option Position-proportional control
Positional-proportional Position-proportional control
dead band : Level 1
Open/close Position-proportional control
hysteresis : Level 2
Hysteresis (heat) : Level 1 ON/OFF control
Hysteresis (cool) : Level 1 ON/OFF control
PID / ON/OFF : Expansion ON/OFF control

4--4
E5AK

4.2 Operating Condition Restrictions

4.2 Operating Condition Restrictions

J Manipulated vari- The upper-and lower-limit values of the manipulated variable can be
restricted by the MV limiter, and the change rate of the manipulated vari-
able restrictions able can be restricted by the MV change rate limiter.

F MV limiter The upper-and lower-limit values of the manipulated variable are set in
the “MV upper limit” and “MV lower limit” parameters (level 2 mode).
When the manipulated variable calculated by the E5AK is outside of the
range of the MV limiter, actual outputs are dependent on the set value of
these parameters.
Output (%)

100
MV upper limit value

MV lower
limit value
0
PV

In heating and cooling control, the manipulated variable at the cooling

side is treated as a negative value for the sake of convenience. The upper
limit is set for the heating side (positive value), and the lower limit is set
for the cooling side (negative value) as shown in the following figure.

Output (%)

100

MV lower limit value

MV upper limit value

Heating Cooling
side side
0 PV

Set point

F MV change rate The “MV change rate limit” parameter (level 2 mode) sets the maximum
limiter permissible change width per second of the manipulated variable. If a
change in the manipulated variable exceeds this parameter setting, the
value calculated by the E5AK is reached while changing the value by the
per-second value set in this parameter.
Output (%)

100
MV change rate
limit value
1 second

0
Time
Switching point

4--5
E5AK

CHAPTER 4 APPLIED OPERATION

F Limiter operation The limiters are invalid or cannot be set when any of the following condi-
conditions tions occurs:
· During ON/OFF control
· During ST execution
· During AT execution (only by MV change rate limiter)
· During manual operation
· When operation is stopped
· When an error has occurred.
· During position-proportional control (manipulated variable limiter
only)

J Set point limiter The setting range of the set point is limited by the set point limiter. The
upper-and lower-limit values of this set point limiter are set in the “Set
point upper limit” and “Set point lower limit” parameters (expansion
mode), respectively. However, note that when the set point limiter is reset,
the set point is forcibly changed to the upper-or lower-limit value of the set
point limiter if the set point is out of the limiter range. Also, when the in-
put type, temperature unit and scaling (sensor) range are changed, set
point limiter is forcibly reset to the scaling (sensor) range.
Scaling (sensor) range
Set point limiter
Setting range SP
Changed to A B
the new up- ○ ×
per limit
value
Changed to upper
SP
limit value

Input type changed

Set point Upper-and lower-limit values of the limiter C B
Scaling (sensor) upper-and lower-limit values ○

J SP ramp With the SP ramp function, the controller operates according to the value
(set point during SP ramp) limited by a change rate, instead of the changed
set point when set point is changed. The interval in which the set point
during SP ramp is limited is referred to as the “SP ramp”.
SP

SP ramp
Set point

SP ramp set
value
SP ramp time unit
Time
Switching point

4--6
E5AK

4.2 Operating Condition Restrictions

The change rate during the SP ramp is specified by the “SP ramp set value”
and “SP ramp time unit” parameters. At the “SP ramp set value” default
“0”, the SP ramp function is disabled.
The set point changing in SP ramp can be monitored in the “Set point dur-
ing SP ramp” parameter (level 0 mode).

F Operation at start The limiters are invalid or cannot be set when any of the following condi-
tions occurs:
If the SP ramp function is enabled when the power is turned ON, and when
“run” is switched to from “stop,” process value may reach the set point af-
ter SP ramp in the same way as when the set point is changed. In this case,
operation is carried out with the process value regarded as the set point
before the change was made.
The direction of the SP ramp changes according to the relationship be-
tween the process value and the set point.

PV < SP PV > SP
SP SP
SP ramp
SP ramp
Set point
PV
Same change
rate
Set point

PV
Time Time
Power ON Power ON

F Restrictions dur- · Execution of auto-tuning starts after the end of SP ramp.

ing SP ramp · When the controller is switched to the manual mode, the set point
changes continuously until SP ramp ends.
· When the controller is in the stop state or an error occurs, the SP ramp
function becomes invalid.

Parameters
Symbol Parameter Name: Mode Description
MV upper limit : Level 2 Manipulated variable restrictions
MV lower limit : Level 2 Manipulated variable restrictions
MV change rate limit : Level 2 Manipulated variable restrictions
SP setting upper limit: Expansion SP setting restrictions
SP setting lower limit : Expansion SP setting restrictions
SP ramp set value : Level 2 SP changing restrictions
SP ramp time unit : Level 2 SP changing restrictions

4--7
E5AK

CHAPTER 4 APPLIED OPERATION

4.3 How to Use Event Input

· When using event input, mount the option unit (E53-AKB). Up to two
E53-AKB units can be mounted on the E5AK, and two event inputs can
be used for each E53-AKB unit.
E53-AKB × 1 unit : 2 event inputs
E53-AKB × 2 units : 4 event inputs
· Event inputs can be switched up to 100,000 times.

J Event input · You can choose from the following five event input functions:
assignments Multi-SP
Run/Stop
Remote/Local
Auto/Manual
SP mode
· In the case of the multi-SP function, the number of event inputs (event
input 1 or 2) set in the “multi-SP function” parameter (option mode) are
used. When four event inputs are used, the multi-SP function is auto-
matically assigned to event inputs 1 and 2 for the designated number.
When two event inputs are used, the multi-SP function is automatically
assigned to event inputs 3 and 4 for the designated number.
· Other functions are assigned to event inputs 1 to 4 not used for the mul-
ti-SP function according to the setting of the “event input assignment 1 to
4” parameters (option mode). However, note that “event input assignment
1/2” parameters cannot be used when only one unit of the E53-AKB is
installed.
4 event inputs 2 event inputs
Event input 1 2 3 4 3 4

0
Multi-SP function

Multi-SP Other event input functions

· The following table shows the relationship between the settings and
functions of the “event input assignment 1 to 4” parameters.

Setting Function
Event input disabled
ON : Stop /OFF : Run
ON : Remote /OFF : Local
ON : Manual /OFF : Auto
ON : RSP /OFF : LSP

4--8
E5AK

4.3 How to Use Event Input

F Assignment · In this example, set four event inputs are used, the multi-SP function to
example “2”, and event input 3 to “Run/Stop” and event input 4 to “Auto/
Manual”. Set as follows:
(1) Set “multi-SP function” parameter to “2”
(2) Set “event input assignment 3” parameter to “ ”
(3) Set “event input assignment 4” parameter to “ ”

Event input 1 2 3 4

Multi-SP Auto/Manual

Run/Stop

J Multi-SP · Set points 0 to 3 are set as the set point according to event input. How-
ever, note that these parameters can not be set when the multi-SP func-
tion is not selected. The following table shows the relationship between
event inputs and set points 0 to 3.

Multi-SP Function 1 2
Event Input 1 (3)* 1 (3)* 2 (4)*
Set Point 0 OFF OFF OFF
Set Point 1 ON ON OFF
Set Point 2 - OFF ON
Set Point 3 - ON ON

* When using 2 event inputs, the multi-SP function is assigned to event

inputs 3 and 4.
· When you have changed the set point in the PV/SP display, the set point
of the currently selected is also simultaneously changed.
· When you have switched between set point 0 to 3, the SP ramp function
works if the SP ramp function is enabled. The following example shows
how the set point changes when you switch from set point 0 to set point 1.
SP
SP
set point 1 ramp

set point 0

Time
Event input OFF ON

4--9
E5AK

CHAPTER 4 APPLIED OPERATION

J Other event input functions

· Switch the parameter settings for each of the run/stop, remote/local and
SP modes.
· The switching operation of auto/manual is the same as that of the A/M

key.
· There is no order of priority in event input and key operations. However,
run/stop or auto/manual event inputs must be set to either of ON or OFF.
So, parameters will always follow event input even if you try to switch
settings by key operation.

F Run/Stop · When event input is set to “ON”, controller operation is stopped and the
“STOP” LED lights. The content of event input is reflected in the “run/
stop” parameter (level 0 mode).

F Remote/Local · This function is supported only when E53-AK01/02/03, the option unit
for serial communications, is installed.
· When event input is set to “ON”, parameters can be written only by
using the communications function, and the “RMT” LED lights. The
content of event input is reflected in the “remote/local” parameter (level
2 mode).

F Auto/Manual · When event input is set to “ON”, the controller is switched for manual
operation, and the “MANU” LED lights.
· Turn event input ON/OFF while the controller is ON.

F SP mode · This function is enabled only when the “SP mode enable” parameter
(option mode) is set to “ON”.
· When event input is set to “ON”, the remote SP (RSP) is taken as the set
point, and the “RSP” LED lights. When event input is set to “OFF”, the
local SP (LSP) is taken as the set point. The content of event input is
reflected in the “SP mode” parameter (level 2 mode). For details on RSP/
LSP, see 4.4 How to Use the Remote SP (page 4-11).

Parameters Symbol Parameter Name: Mode Application

Multi-SP function : Option Event input functions
* Event input assignment 1 to 4 : Option Event input functions
** Set point 0 to 4 : Level 1 Multi-SP
* : to ** : to

4--10
E5AK

4.4 How to Use the Remote SP

4.4 How to Use the Remote SP

· Taking a remote SP input (4 to 20 mA) as the set point is referred to as

the “remote SP” function. The remote SP function is enabled only when
the “remote SP (RSP) enable” parameter (option mode) is set to “ON”.

J Scaling · Remote SP upper-and lower-limit values can be set by scaling.

· Inputs within the range 4 to 20 mA (-10 to 110%) are allowed as remote
SP inputs. Inputs not within this range are regarded as out-of-range
input values. In this case, input is clamped at the remote SP lower or
upper limit values, and the “RSP” LED blinks.
· If the output function “RSP input error” is assigned for when an out-of-
range remote SP is input, the “RSP input error” output is turned ON.
Control output also switches to the setting of the “MV at PV error”
parameter.
· Set the upper limit value in the “remote SP upper limit” parameter and
the lower limit value in the “remote SP lower limit” parameter (option
mode).
RSP (%)
Out-of-range input
(blinks of upper-and lower-limit values)
Upper limit value

Lower limit value

Input (mA)
4 20
2.4 (-10%) 21.6 (-110%)

F Relationship with · When the “Set point upper limit” or “Set point lower limit” parameters
set point limiter are changed, the remote SP upper-and lower-limit values are forcibly
changed to the set poimt upper-and lower-limit values. The following
example shows how the remote SP upper-and lower-limit values are
changed when the set point upper limit value is changed from A to B.
Set point limiter
RSP scaling range
A
Before change Set point

Upper limit value

changed from A to B

Changed to B Set point

upper limit value Upper-and lower-limit values of the limiter
RSP scaling upper-and lower-limit values

J SP mode · The set point held internally by the E5AK controller is referred to as the
“local SP (LSP).”
LSP · If the multi-SP function is enabled, set points 0 to 3 are enabled for use
SP mode
as the local SP.
· Use the “SP mode” parameter to switch between the remote SP and local
RSP SP. When the SP mode parameter is set to “ ” (remote SP), the
RSP enable
“RSP” LED lights. When the SP mode parameter is set to “ ”, the
controller is in the local SP mode.

4--11
E5AK

CHAPTER 4 APPLIED OPERATION

J Remote SP · In the remote SP mode, the remote SP can be monitored on the No.2 dis-
play for PV/SP. In the local SP mode, the remote SP can be monitored in
monitor the “remote SP monitor” parameter.

J SP tracking · When the local SP is switched to from the remote SP when the SP track-
ing function is enabled, the local SP is changed so that the remote SP
value is held at the SP value used immediately before switching.
To use the SP tracking function, set the “SP tracking” parameter to
“ON”.
· The following figure shows how SP tracking works when the SP mode
is switched.

RSP input
LSP1
LSP2

RSP2

SP mode LSP RSP LSP

(1) When the remote SP is switched to when the set point is “LSP1”, the
SP is switched to “RSP2”.
(2) The SP shifts according to remote SP input.
(3) When the local SP is switched to, the set point becomes “LSP2” if the
SP tracking function is enabled. If this function is disabled, the SP
will be switched to “LSP1”.
· When the local SP is switched to the remote SP, the SP ramp will operate
if the SP ramp function is enabled.

J Operating · When the SP function is set to “ON”, the “SP mode” parameter is forci-
bly changed to [ ] and the local SP is taken as the set point.
conditions
· During auto-tuning, remote SP input is not accepted. Auto-tuning is
executed on the set point at the start of auto-tuning.
· Remote SP is not subject to the standby sequence reset conditions.

Parameters Symbol Parameter Name: Mode Application

Remote SP enable : Option Remote SP function

Remote SP upper limit : Option RSP scaling
Remote SP lower limit : Option RSP scaling
SP mode : Level 2 LSP/RSP switching
SP tracking : Option LSP/RSP switching

4--12
E5AK

4.5 How to Use the Heater Burnout Alarm

4.5 How to Use the Heater Burnout Alarm

· On a standard type controller, the HBA (heater burnout alarm) function

can be used only when the assignment destination of the output function
“control output (heat)” is set to pulsed output.
· When using the HBA function, assign output function “heater burnout
(HB) alarm” to auxiliary outputs 1 or 2.

J Heater burnout · Heater burnout detection works as follows.

(1) Connect the current transformer (CT) to terminal Nos.15 and 17, and
detection insert the heater lead through the CT hole.
To E5AK
CT terminal (2) When current flows through this lead, the current transformer gener-
ates AC current proportional to the current value. The E5AK mea-
sures this AC current to calculate the current flowing to the heater.
CT (3) If heater is burned out, the current measured at the current trans-
former decreases. This value is compared with the value set as the
heater burnout set value and is output as the heater burnout alarm.
· Set the heater burnout set value in the “heater burnout alarm” parame-
ter. To check the current value of the current transformer, use the
Heater wire
“heater current monitor” parameter.
· When you are not using the HBA function, set the “heater burnout
alarm” parameter to “0.0 (disabled)”.

F HBA · When the HBA latch function is set to “ON”, the heater burnout alarm
latch/release is held until either of the following measures is taken:
a Set the heater burnout set value to “0.0”.
b Reset the controller.
(Turn the controller’s power OFF then back ON again.)
· To enable the HBA latch function, set the “HBA latch” parameter to
“ON”.

J Operating · Turn the heater power supply ON at the same time as or before turning
the E5AK power supply ON. If the heater power supply is turned ON
conditions after turning the E5AK power supply On, the heater burnout alarm is
output.
· Control is continued even when the heater burnout alarm is output.
(That is, the controller attempts to control the heater as if the heater
burnout alarm has not occurred.) So, remedy the condition such as
repairs which are caused by the heater burnout alarm.
· The heater burnout alarm is detected only if the control output is contin-
uously ON for 190 ms or more.
· The rated current value may sometimes differ slightly from the actual
current value flowing to the heater. Check the current value in an actual
operating status in the “heater current monitor” parameter.
· If there is little difference between the current in a normal status and the
current in a burnout status, detection may become unstable. On a heater
of current 10.0 A or less, maintain a difference of 1.0 A or more. On a
heater of current 10.0 A or more, maintain a difference of 2.5 A or more.
· Heater burnout alarm function cannot be used when controlling the
heater by a phase control method or by a cycle control method. Also,
3-phase heaters cannot be used.

When detecting heater burnout on a 3-phase heater, use the K2CU-FVVA-VGS

(with gate input terminal). (For details, see the respective data sheet.)

4--13
E5AK

CHAPTER 4 APPLIED OPERATION

J How to calculate · Calculate the set value nby the following formule:
the heater burn- Set value =
(current value at normal operation + current value at burnout)
2
out set value
· Set the current value at burnout when two or more heaters are con-
nected to the CT to the value at the time that the heater having the small-
est current value burns out (the value when one of the heaters burns out
with all heaters at the same current).
· Make sure that the following condition is satisfied:
Heater of current 10.0 A or less
Current value at normal operation --- current value at heater burn-
out ≧ 1 A
When resultant current is less than 1 A, detection is unstable.
Heater of current 10.0 A or more
Current value at normal operation --- current value at heater burn-
out ≧ 2.5 A
When resultant current is less than 2.5 A, detection is unstable.
· The setting range is 0.1 to 49.9 A. Heater burnout is not detected when
the setting is “0.0” or “50.0”. When the setting is “0.0”, the heater burn-
out alarm is set to “OFF”, and when the setting is “50.0”, the heater
burnout alarm is set to “ON”.
· Set the total current value at normal heater operation to 50 A or less.
When set to 55.0 A or more, [ ] is displayed in the “heater current
monitor” parameter.

F Examples of use Example 1 : when using a 200 VAC, 1 kW heater

Control output 1000
Heater Current at normal operation = = 5A (< 10A)
200
Current at heater burnout = 0A
1KW 5+0
AC200V Set value = = 2.5A
CT
2

E5AK 17 15

Example 2 : when using three 200 VAC, 1 kW heaters

Heater Control output 1000
Current at normal operation = ×3 = 15A (≧ 10A)
200
1000
1KWx3 Current at burnout of one heater = ×2 = 10A
AC200V 200
CT 15+10
Set value = = 12.5A
2
(current at normal operation ---current at heater burnout
= 15 --- 10 = 5A (≧ 2.5A)
E5AK 17 15

Parameters Symbol Parameter Name: Mode Application

Heater current monitor : Level 1 Heater current value monitor
Heater burnout : Level 1 Heater burnout detection
Heater burnout latch : Option Heater burnout detection alarm latch

4--14
E5AK

4.6 LBA

4.6 LBA

· The LBA (Loop Break Alarm) function can be used only on standard
type controllers.
· The LBA function can be used only when assigned as an output. Also, the
LBA function does not work when a memory error or A/D converter
error results.
· LBA (Loop Break Alarm) is a function for judging that an error has
occurred somewhere on the control loop and outputting an alarm when
the process value does not change with the manipulated variable at a
maximum or minimum state. Accordingly, the LBA function can be used
as a means for detecting a malfunctioning control loop.

F LBA detection · Normally, when output is set to maximum or minimum, the process
time value rises or falls after the dead time has elapsed. LBA is output if the
process value does not change in the predicted direction after a fixed
amount of time has elapsed. This fixed amount of time is the “LBA detec-
tion time.”

F LBA detection · LBA operation sometimes becomes unstable when the process value
width fluctuates considerably due to the control characteristics. The LBA
detection width is provided so that changes with respect to output can
be correctly detected. Changes smaller than the detection width due to
LBA detection timing are not regarded as changes.

F LBA detection · The following example describes what happens when a heater burnout
example at maximum output.
LBA detection time LBA detection time

PV

LBA detection width

Output

Time
Heater burnout LBA=ON

· LBA judgment is carried out at each LBA detection time from the point
of maximum output. In above figure, the process value (PV) is changing
greatly at the 1st judgment timing, so LBA remains OFF.
· At the 2nd judgment timing, the process value increases as indicated by
the broken line of the process value is normal. This means that the
change width exceeds the LBA detection width, and LBA output remains
OFF.
· If the heater burns out at the point shown in the above figure, the process
value “decreases.” Accordingly, it is judged that “the process value is not
changing in the increasing direction” at the 2nd judgment timing and
the LBA output becomes ON.

4--15
E5AK

CHAPTER 4 APPLIED OPERATION

F Setting the LBA · The LBA detection time is automatically set by auto-tuning (except in
detection time heating and cooling control).
· If the optimum LBA detection time cannot be obtained by auto-tuning,
set the time in the “LBA detection time” parameter (level 2 mode).

F Determining the · Calculate the LBA detection time as follows:

LBA detection (1) Set output to maximum.
time (2) Measure the time it takes for the input change width to reach the LBA
detection width (default: 0.2 % full-scale).
(3) Take a value twice that of the measurement time as the LBA detection
time.
Measurement time Tm

PV

0.2%FS
Output

Time
LBA detection time = Tm x 2

(4) In the case of ON/OFF operation, set the LBA detection time to a val-
ue longer than the control period.

Parameters
Symbol Parameter Name: Mode Application
AT Execute/Cancel : Level 1 Automatic setting of LBA detec-
tion time
LBA detection time : Level 2 Setting of LBA detection time
LBA detection width : Expansion Changing of LBA detection
width

4--16
E5AK

4.7 How to Use Transfer Output

4.7 How to Use Transfer Output

· When using transfer output, add on the communications unit (E53-AKF).

F Transfer output · You can select the following data items in the “transfer output type”
type parameter (option mode) as the transfer outputs:
Set point
Set poing during SP ramp
Process value
Manipulated variable (heat)
Manipulated variable (cool), and
Valve opening.
However, note that heating/cooling side manipulated variables can be
output only standard type controllers, and valve opening can be output
on position-proportional type controllers
· If the output assignment is changed when either ”manipulated variable
(heat)” or ”manipulated variable (cool)” parameter is selected, the
default ”set point” is returned to.

F Transfer output · These transfer outputs can be scaled according to the settings of the
scaling “transfer output upper limit” and “transfer output lower limit” param-
eters before output. Setting of an upper limit value smaller than the
lower limit value is allowed, so reverse scaling can also be carried out.
Also, the scale can be enlarged by the upper-and lower-limit width speci-
fied for each data item. The following example shows scaling of the read-
ing side manipulated variable.
Transfer output Transfer output
(mA) Reverse scaling (mA) Enlarged scale

20 20

4 4
Manipu- Manipulated
lated 0 variable (%)
Transfer output Transfer Transfer Transfer 100
variable output lower output upper
upper limit: 0 output lower (%)
limit: 100 limit: 10 limit: 80

4--17
E5AK

CHAPTER 4 APPLIED OPERATION

· If “input type”, “scaling upper/lower limit”, “SP limitter upper/lower

limit”, or “_C/_F selection” parameters is changed when “set point”,
“set point during SP ramp”, or “process value” parameter is selected,
each of the “transfer output upper limit” and “transfer output lower
limit” parameters are forcibly changed to their respective upper or
lower limit values.

SP limitter
Transfer type scaling range
A
Change value Set point

Change upper limit

value A to B.

Limitter upper limit B Set point

change value Limitter upper/lower limit values
Transfer type scaling upper/lower limit values

Parameters Symbol Parameter Name: Mode Application

Transfer output type : Option Transfer output designation
Transfer output upper limit : Option Transfer output scaling
Transfer output lower limit : Option Transfer output scaling

4--18
E5AK

CHAPTER 5 PARAMETERS

CHAPTER 5 5
PARAMETERS
This chapter describes the parameters of the E5AK. Use this chapter as
a reference guide.

Conventions Used in this Chapter . . . . . . . . . . . . 5-2

Protect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Level 0 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Level 1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Level 2 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Expansion Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Option Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

5--1
E5AK

CHAPTER 5 PARAMETERS

Conventions Used in this Chapter

J The meaning of icons used in this chapter

Describes the functions of the parameter.

Function

Describes the range and defaults of the parameter setting.

Comment

Used for monitor-dedicated parameters.

Describes the range of the monitor values.
Monitor

Describes a procedure using parameters in operating instructions.

Example
of use

Describes related parameters and items.

See

Describes models of the E5AK or option units supporting the parameter being
described.
Model

J About parameter display

On the E5AK controller, only parameters that can be used are displayed. These parameters are
displayed only when the “Conditions of Use” on the right of the parameter heading are satisfied.
However, note that the settings of protected parameters are still valid, and are not displayed
regardless of the conditions of use.

Conditions of Use
AT Execute/cancel The controller must
be in operation.

5--2
E5AK

Protect Mode

· The protect mode is for disabling (protecting) the functions of the menu key or A/M
key. Before changing parameters in this mode, first make sure that protecting the
menu key or A/M key will not cause any problems in operation.
· To select this mode, press the A/M key and key simultaneously for 1 second mini-
mum. To exit this mode, press the A/M key and key down again simultaneously
for 1 second minimum.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
Security 5-3
[A/M] key protect 5-4

Security

· This parameter specifies which parameters are protected. However, note that the
protect mode and manual mode cannot be protected.
Function

· When this parameter is set to “0” to “3”, only the modes indicated by the “f” mark
in the table below can be selected on the menu display. For example, when this param-
Comment
eter is set to “2”, only level 0 to 2 modes can be selected.
Set value
Mode
0 1 2 3 4 5 6
Calibration f
Option f f
Expansion f f
Setup f f
Level 2 f f f
Level 1 f f f f
Level 0 f f f f f f *

· When this parameter is set to “4” to “6”, operations in only the level 0 mode can be
selected, and the mode is not displayed on the menu display.
· When this parameter is set to “5”, only the “PV/SP” parameter in the level 0 mode
can be used.
· When this parameter is set to “6”, only the “PV/SP” parameter in the level 0 mode
can be used. (The set point cannot change.)
· Default is “1”. (Only the calibration mode is protected.)

F Related article
3.5 Protect Mode (page 3-12)
See
5--3
E5AK

CHAPTER 5 PARAMETERS

Protect Mode

[A/M] key protect

· Invalidate the function of the key. In other words, you cannot switch between the
auto and manual operations by key operation.
Function

·[ ]: A/M key protect ON

·[ ]: A/M key protect canceled
Comment · Default = [ ]

F Related article
3.5 Protect Mode (page 3-12)
See

5--4
E5AK

Manual Mode

· In this mode, manual operations are possible, and the “MANU” LED lights.
· When this mode is selected, the manipulated variable that was active immediately
before the mode was switched to is output. When changing the manipulated variable,
change it using the or keys.
If this mode is switched to during auto-tuning, auto-tuning is canceled.
· To select this mode when in the level 0 to 2 modes, press the A/M key for 1 second mini-
mum. To exit this mode, press the A/M key for 1 second minimum. The mode changes
to the level 0 mode.
· “Manual MV” is the only parameter available in this mode.

Manual MV

· Sets the manipulated variable for manual operation or the valve opening. On a standard
type controller when you press the or keys, the manipulated variable is
Function
changed. On a position-proportional type controller when you press the key, the
open side becomes ON, and when you press the key, the close side becomes ON.
· On a standard type controller, the process value is displayed on the No.1 display and
the manipulated variable is displayed on the No.2 display. The manipulated variable
on the heating side is also displayed on the bar graph in 10% increments.

Process value

Manipulated variable

Bar graph [MANU] LED

· When a potentiometer is connected on a position-proportional type controller, the

process value is displayed on the No.1 displayed, and the valve opening is displayed
on the No.2 display. The valve opening is also displayed on the bar graph in 10% incre-
ments. When a potentiometer is not connected to the controller, [----] is displayed on
the No.2 display, and nothing is displayed on the bar graph.
Potentiometer connected Potentiometer not connected
Process value Process value

Valve opening Valve opening

Bar graph [MANU] LED Bar graph [MANU] LED

· On standard type controllers, the manual MV is held when the power is interrupted.

· Standard type
Control Method Setting Range Unit Default
Comment Standard -5.0 to 105.0 % 0
Heating and cooling -105.0 to 105.0 % 0
· Position-proportional type
Control Method Monitor Range Unit
Position-proportional -10.0 to 110.0 %

F Related article
3.7 Adjusting Control Operation (page 3-14)
See
5--5
E5AK

CHAPTER 5 PARAMETERS

Level 0 Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” to “4”.
· The “PV/SP” parameter can be used when the “security” parameter is set to “5” or
“6”. However, note that the SP cannot be changed when it is set to “6”.
· This mode is used for monitoring the process value, set point and manipulated vari-
able during operation, and for checking and setting the SP setting value. It is also
used for starting and stopping controller operation.
· To select this mode when in the levels 1 and 2, setup, expansion, option and calibra-
tion modes, press the key for 1 second minimum. The display changes to the
menu display. If you select [ ] then press key for 1 second minimum, the
controller enters the level 0 mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
PV/SP 5-6
Remote SP monitor 5-7
Set point during SP ramp 5-8
MV monitor (heat) 5-8
MV monitor (cool) 5-8
Vavle opening monitor 5-9
Run/Stop 5-9

PV/SP

· The process value is displayed on the No.1 display, and the set point is displayed on
the No.2 display. The set point can be set.
Function
· Either of the local SP or remote SP is displayed as the set point depending on the SP
mode. In the remote SP mode, the set point is only monitored.
Local SP mode Remote SP mode

Process value

Set point Monitor only

[RSP] LED not lit [RSP] LED lit

· The selected set point is linked when the multi-SP function is in use in the local SP
mode. For example, when set point 1 is selected, set point 1 is displayed on the No.2
display, and the setting of the “set point 1” parameter (level 1 mode) also is changed
when the value of set point 1 is changed.
· The decimal point position is dependent on the selected sensor during temperature
input and on the results of scaling during analog input.

5--6
E5AK

Level 0 Mode

· Process value
Monitor Range Unit
Scaling lower limit -10%FS to scaling upper limit +10%FS EU
Comment
During temperature input, the range of the currently selected sensor is taken as the
monitor range.

· Set point
Setting Range/Monitor Range Unit Default
Local SP : Local SP lower limit to local SP setting upper limit EU 0
Remote SP: Remote SP lower limit to remote SP upper limit EU -

F Related article
3.7 Adjusting Control Operation (page 3-14)
F Related parameters
See
“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (setup mode)
“SP setting upper limit” “SP setting lower limit” (expansion mode)
“SP mode” (level 2 mode)
“Remote SP enable” “Remote SP upper limit” “Remote SP lower limit” (option
mode)

Remote SP monitor Conditions of Use

The controller must be in the local SP
mode with the remote SP function
enabled.

· Monitors remote SP in the local SP mode.

Function

Monitor Range Unit

Remote SP lower limit to Remote SP upper limit EU
Monitor

F Related article
4.2 Operating Condition Restrictions/SP ramp (page 4-6)
F Related parameters
See
“SP mode” (level 2 mode)
“Remote SP enable” “Remote SP lower limit” “Remote SP upper limit” (option
mode)

5--7
E5AK

CHAPTER 5 PARAMETERS

Level 0 Mode

Set point during SP ramp Conditions of Use

The remote SP function must be enabled.
When the remote SP function is disabled,
this function can be used only when the
SP ramp function is enabled.

· Monitors the set point during SP ramp

· Matches the set point of the “PV/SP” parameter when the set point is not during SP
Function ramp .

Moniter Range Unit

Local SP : Local SP setting lower limit to local SP setting upper limit EU
Remote SP : Remote SP lower limit to remote SP upper limit EU
Monitor

F Related article
4.2 Operating Condition Restriction/SP ramp (page 4-6)
F Related parameters
See “PV/SP” (level 0 mode)
“SP ramp time unit” “SP ramp set value” (level 2 mode)
“Set point upper limit” “Set point lower limit” (expansion mode)
“SP mode” (level 2 mode)
“Remote SP enable” “Remote SP upper limit” “Remote SP lower limit” (option
mode)

MV monitor (heat) Conditions of Use

Control must be standard control or heat-
ing and cooling control.
MV monitor (cool)

· This parameter cannot be set.

· Monitors the manipulated variable on the heating or cooling side.
· The manipulated variable in a standard control system is checked in the “MV moni-
Function tor (heat)” parameter.
· The “MV monitor (cool)” parameter can be used only during heating and cooling con-
trol.

· MV monitor (heat)
Control Monitor Range Unit
Standard -5.0 to 105.0 %
Monitor
Heating and cooling 0.0 to 105.0 %

· MV monitor (cool)
Control Monitor Range Unit
Heating and cooling 0.0 to 105.0 %

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

5--8
E5AK

Level 0 Mode

Valve opening monitor Conditions of Use

Control must be position-proportional con-
trol

· Monitors the valve opening during position-proportional control.

Function

Moniter Range Unit

-10 to +110 EU

Monitor
F Related article
4.1 Selecting the Control Methed/Position-proportional control (page 4-3)
See

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24
Model

Run/Stop

· This parameter is used for checking the operating status of the controller, and for
specifying start and stop of operation.
Function · When the “run/stop” function is assigned to event input, “stop” is set when event in-
put is ON, and “run” is set when event input is OFF. There is no order of priority in
key operations.

· To start operation, set this parameter to [ ] press the or keys. To stop

operation, set this parameter to [ ]. When operation is stopped, the “STOP”
LED lights.
Example
of use · Default is [ ]

F Related article
3.6 Starting and Stopping Operation (page 3-13)
See

5--9
E5AK

CHAPTER 5 PARAMETERS

Level 1 Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” to “3”.
· This mode contains the main parameters for adjusting control. These parameters
include parameters for executing AT (auto-tuning), setting the alarm values, setting
the control period, and setting PID parameters.
· To select this mode when in the levels 0 and 2, setup, expansion, option and calibra-
tion modes, press the key for 1 second minimum. The display changes to the
menu display. If you select [ ] then press the key for 1 second minimum, the
controller enters the level 1 mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
AT Execute/Cancel 5-11

Set point 0 5-11

Set point 1 5-11
Set point 2 5-11
Set point 3 5-11
Alarm value 1 5-12
Alarm value 2 5-12
Alarm value 3 5-12
Proportional band 5-12

Integral time 5-12

Derivative time 5-12

Cooling coefficient 5-13

Dead band 5-14

Position-proportional dead band 5-14

Manual reset value 5-15

Hysteresis (heat) 5-15

Hysteresis (cool) 5-15

Control period (heat) 5-16

Control period (cool) 5-16

Heater current monitor 5-17

Heater burnout 5-17

5--10
E5AK

Level 1 Mode

AT Execute/Cancel Conditions of Use

The controller must be in operation, con-
trol must be advanced PID control, and ST
must be set to OFF.

· Selects the limit cycle of MV change width (40% or 100%) for execution. After AT
execution, the “PID” and the “LBA detection time” (LBA: Loop Break Alarm) param-
eters are set automatically.
Function
· During heating and cooling control or position-proportional control, only 100%AT
can be executed.

· When this parameter is selected, the setting becomes [ ].

· To execute 40%AT, select [ ], and to execute 100%AT, select [ ]. During
execution of auto-tuning, the AT LED flashes. However, note that during heating and
Example
of use cooling control or position-proportional control, [ ] is not displayed.
· When AT execution ends, the parameter setting automatically returns to [ ].

F Related article
3.7 Adjusting Control Operation (page 3-16)
F Related parameters
See
“Run/Stop” (level 0 mode)
“Proportional band” “Integral time” “Derivative time” (level 1 mode)
“LBA detection time” (level 2 mode)

Set point 0 Set point 2

Set point 1 Set point 3

Conditions of Use
The controller must be in the local SP
mode with the multi-SP function enabled.

· Switches set points 0 to 3 by event input for use as the set point (local SP).
· Of set points 0 to 3, the number of valid set points is designated by the “multi-SP func-
tion” parameter.
Function
· The following table shows the relationship between event input and the selected
parameter.
Multi-SP Function 1 2
Event Input 1 1 2
Set Point 0 OFF OFF OFF
Set Point 1 ON ON OFF
Set Point 2 - OFF ON
Set Point 3 - ON ON

· When the set point has been changed, the setting of whichever is selected in event
input, “set point 0” to “set point 3”, is linked and changed.
· The decimal point position is dependent on the selected sensor during temperature
input and on the results of scaling during analog input.

5--11
E5AK

CHAPTER 5 PARAMETERS

Level 1 Mode

Setting Range Unit Default

Set point lower limit to Set point upper limit EU 0

Comment
F Related article
4.3 How to Use Event Input (page 4-8)
F Related parameters
See
“Multi-SP function” “Remote SP enable” (option mode)
“Set point” (level 0 mode) “SP mode” (level 2 mode)
“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (setup
mode)

F Option unit
E53-AKB

Model

Alarm value 1 Conditions of Use

Alarms must be assigned as outputs. For
Alarm value 2 example, if alarm outputs 1 and 2 only are
assigned as outputs, the “alarm value 3”
Alarm value 3 parameter cannot be used.

· This parameter is used for monitoring or changing the alarm values of alarm outputs
1 to 3.
· During temperature input, the decimal point position is dependent on the currently
Function
selected sensor, and during analog input on the results of scaling.

Setting Range Unit Default

-1999 to 9999 EU 0

Comment

F Related article
3.4 Setting Alarm Type (page 3-9)
F Related parameters
See
“Input type” “Scaling upper limit” “Scaling lower limit” Decimal point” “Control
output 1 assignment” “Control output 2 assignment” “Auxiliary output 1 assign-
ment” “Auxiliary output 2 assignment” “Alarm 1 type” “Alarm 2 type” “Alarm 3
type” “Alarm 1 open in alarm” “Alarm 2 open in alarm” “Alarm 3 open in alarm”
(setup mode)
“Alarm 1 hysteresis” “Alarm 2 hysteresis” “Alarm 3 hysteresis” (level 2 mode)
“Standby sequence reset method” (expansion mode)

5--12
E5AK

Level 1 Mode

Proportional band Conditions of Use

Control must be advanced PID control,
and ST must be set to OFF.
Integral time

Derivative time

· Sets the PID parameters. However, note that the PID parameter settings are changed
to optimum values when auto-tuning is executed, and self-tuning is selected.

Function

Parameter Setting Range Unit Default

Proportional band 0.1 to 999.9 %FS 10.0
Integral time 0 to 3999 (see note1) Second 233
Comment
Derivative time 0 to 3999 Second 40
note1 : During position-proportional control, the setting range become 1 to 3999s.

F Related parameter
“AT Execute/Cancel” (level 1 mode)

See

Cooling coefficient Conditions of Use

The control must be either heating and
cooling control, or advanced PID control.

· In heating and cooling control, P at the cooling side is calculated by the following for-
mula:
Cooling side P = cooling coefficient ¢ P
Function

Setting Range Unit Default

0.01 to 99.99 None 1.00

Comment

F Related article
4.1 Selecting the Control Method (page 4-2)
F Related parameter
See
“Proportional band” (level 1 mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24
Model

5--13
E5AK

CHAPTER 5 PARAMETERS

Level 1 Mode

Dead band Conditions of Use

The control system must be heating and
cooling control.

· Sets the output dead band width in a heating and cooling control system. A negative
setting sets an overlap band.

Function

Setting Range Unit Default

-19.99 to 99.99 %FS 0.00

Comment
F Related article
4.1 Selecting the Control Method (page 4-2)

See
E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

Position-proportional Conditions of Use

Control must be position-proportional con-
dead band
trol

· Sets the output hold width during position-proportional control (ON/OFF switching
point for open and close output).

Function Open/close hysteresis

Dead band

ON

OFF

MV--Valve opening
-100% 0 100%

Setting Range Unit Default

0.1 to 10.0 % 2.0

Comment

F Related article
4.1 Selecting the Control Method/Position-proportional Control (page 4-3).
F Related parameter
See
“Open/close hysteresis” (Level 2 mode)

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24

Model
5--14
E5AK

Level 1 Mode

Manual reset value Conditions of Use

The control must be either standard con-
trol or advanced PID control, ST must be
set to OFF, and the “integral time” parame-
ter must be set to “0”.

· Sets the required manipulated variable to remove offset during stabilization of P or

PD control.
Function

Setting Range Unit Default

0.0 to 100.0 % 50.0

Comment

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

Hysteresis (heat) Conditions of Use

The control system must be ON/OFF con-
trol.
Hysteresis (cool)

· Sets the hysteresis for ensuring stable operation at ON/OFF switching.

· In standard control, use the “hysteresis (heat)” parameter. The “hysteresis (cool)”
Function parameter cannot be used.
· In heating and cooling control, the hysteresis can be set independently for heating
and cooling. Use the “hysteresis (heat)” parameter to set the heating side hysteresis,
and use the “hysteresis (cool)” parameter to set the cooling side hysteresis.

Parameter Setting Range Unit Default

Hysteresis (heat) 0.01 to 99.99 %FS 0.10
Hysteresis (cool) 0.01 to 99.99 %FS 0.10
Comment

F Related article
4.1 Selecting the Control Method/ON/OFF control (page 4-4)
F Related parameters
See
“Control output 1 assignment” “Control output 2 assignment” (setup mode)
“PID / ON/OFF” (expansion mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

5--15
E5AK

CHAPTER 5 PARAMETERS

Level 1 Mode

Control period (heat) Conditions of Use

Relay or voltage output must be set as the
outputs, and the control must be set to
Control period (cool) advanced PID control, standard control or
heating and cooling control.

· Sets the pulse output period. Set the control period taking the control characteristics
and life expectancy of the controller into consideration.
Function · In standard control, use the “control period (heat)” parameter. The “control period
(cool)” parameter cannot be used.
· In heating and cooling control, the control period can be set independently for heat-
ing and cooling. Use the “control period (heat)” parameter to set the heating side con-
trol period, and use the “contrlo period (cool)” parameter to set the cooling side con-
trol period.

Parameter Setting Range Unit Default

Control period (heat) 1 to 99 Second 20
Control period (cool) 1 to 99 Second 20
Comment

F Related article
3.3 Setting Output Specifications (page 3-6)
See F Related parameters
“Control output 1 assignment” “Control output 2 assignment” (setup mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24
Model

5--16
E5AK

Level 1 Mode

Heater current monitor Conditions of Use

The HBA output function must be
assigned.

· Measures the current value of the heater from CT input.

Function

Monitor Range Unit

0.0 to 55.0 A

Monitor ·[ ] is displayed when 55.0 A is exceeded.

F Related article
4.5 How to Use the Heater Burnout Alarm (page 4-13)

See
F Related parameters
“Heater burnout” (level 1 mode) “HBA latch” (option mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

Heater burnout Conditions of Use

The HBA output function must be
assigned.

· Outputs the heater burnout alarm when the heater current value falls below this
parameter setting.
Function · When the set value is “0.0”, the heater burnout alarm is “OFF”. When the set value
is “50.0”, the heater burnout alarm is “ON”.

Setting Range Unit Default

0.0 to 50.0 A 0.0

Comment

F Related article
4.5 How to Use the Heater Burnout Alarm (page 4-13)

See
F Related parameters
“Heater current monitor” (level 1 mode) “HBA latch” (option mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

5--17
E5AK

CHAPTER 5 PARAMETERS

Level 2 Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” to “2”.
· This mode contains the auxiliary parameters for adjusting control. These parame-
ters include parameters for limiting the manipulated variable and set point, parame-
ters for switching between remote and local operation, and parameters for setting the
LBA (Loop Break Alarm), alarm hysteresis, and input digital filter values.
· To select this mode when in the levels 0 and 1, setup, expansion, option and calibra-
tion modes, press the key for 1 second minimum. The display changes to the
menu display. If you select [ ] using the key then press the key for
1 second minimum, the controller enters the level 2 mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
Remote/Local 5-19

SP mode 5-19

SP ramp time unit 5-20

SP ramp set value 5-20

LBA detection time 5-21

MV at stop 5-21

MV at PV error 5-21

MV upper limit 5-22

MV lower limit 5-22

MV change rate limit 5-22

Input digital filter 5-23

Open/close hysteresis 5-23

Alarm 1 hysteresis 5-24

Alarm 2 hysteresis 5-24

Alarm 3 hysteresis 5-24

Input shift upper limit (temperature) 5-24

Input shift lower limit (temperature) 5-24

5--18
E5AK

Level 2 Mode

Remote/Local Conditions of Use

The communications function must be in
use.

· Switches between remote and local operation.

· To change the parameter setting during remote operation, use the communications
function. To change the parameter setting during local operation, change the setting
Function
on the E5AK controller.
You can check the parameter setting by both communications and on the E5AK con-
troller regardless of whether the controller is switched to remote or local operation.
· When the event input to which “remote/local” is assigned is ON, the controller
switches to the remote mode. When the event input is OFF, the controller switches
to the local mode.

Setting Range Default

[ ]: remote / [ ]: local [ ]

Comment

F Related article
Chapter 6 Using the Communications Function
F Related parameters
See
“Communication stop bit” “Communication data length” “Communication parity”
“Communication baud rate” “Communication unit No.” “Event input assignment
1” “Event input assignment 2” “Event input assignment 3” “Event input assign-
ment 4” (option mode)

F Option units
E53-AK01/02/03
Model

SP mode Conditions of Use

The remote SP function must be enabled
and ST must be set to OFF.

· Switches between remote SP and local SP.

· Switches the SP to the remote SP when an event input to which the “SP mode” has
been assigned is ON. Switches the SP to the local SP when an event input to which
Function
the “SP mode” has been assigned is OFF.

Setting Range Default

[ ]: Remote SP/[ ]: Local SP

Comment
F Related article
4.4 How to Use the Remote SP (page 4-11)
F Related parameters
See
“Remote SP enable”
“Event input assignment 1” “Event input assignment 2” “Event input assignment
3” “Event input assignment 4” (option mode)

5--19
E5AK

CHAPTER 5 PARAMETERS

Level 2 Mode

SP ramp time unit Conditions of Use

ST must be set to OFF.
SP ramp set value

· Specifies the change rate during SP ramp operation. Set the maximum permissible
change width per unit of time (minute or hour) as the “SP ramp set value”. However,
Function
note that when set to “0”, the SP ramp function is disabled.
· The time unit and SP ramp set value are independent of each other. For example,
when setting “30 per minute”, set the “SP ramp set value” parameter to “30” and the
“SP ramp time unit” parameter to [ ] (“minute”). However, if you change the
time unit only to [ ] (“hour”), the set time becomes “30 per hour.”
· During temperature input, the decimal point position of the SP ramp set value is
dependent on the currently selected sensor, and during analog input on the results
of scaling.

Parameter Setting Range Unit Default

SP ramp time unit [ ]: minute/ [ ]: hour None
SP ramp set value 0 to 9999 EU 0
Comment

During temperature input, the range of the currently selected sensor it taken as the
setting range for the “SP ramp set value” parameter.

F Related article
4.2 Operating Condition Restrictions/SP ramp (page 4-6)
See F Related parameters
“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (setup
mode)

5--20
E5AK

Level 2 Mode

LBA detection time Conditions of Use

The LBA (Loop Break Alarm) function
must be assigned as an output.

· This parameter is automatically set by AT execution (excluding AT execution in a

ON/OFF control).
· The LBA is output if the change width of the process value falls below 0.2 %full-scale
Function
of the time preset to this parameter when the manipulated variable is set in the “MV
upper limit” or “MV lower limit” parameters.
· The LBA function is disabled when this parameter is set to “0”.

Setting Range Unit Default

0 to 9999 Second 0

Comment

F Related article
4.4 LBA (page 4-9)
7.3 How to Use Error Output (page 7-5)
See
F Related parameters
“AT Execute/Cancel” (level 1 mode)
“Control output 1 assignment” “Control output 2 assignment” “Auxiliary output 1
assignment” (setup mode)

MV at stop Conditions of Use

Advanced PID control
MV at PV error

· The “MV at stop” parameter sets the manipulated variable when operation stops on
a standard type controller. On a position-proportional type controller, this parameter
sets the action (close/hold/open) when operation stops.
Function
· The “MV at PV error” parameter sets the manipulated variable when an input error
occurs. On a position-proportional type controller, this parameter sets the action
(close/hold/open) when an input error occurs.

· Standard type
Control Method Setting Range Unit Default
Standard -5.0 to 105.0 % 0
Comment Heating and cooling -105.0 to 105.0 % 0
The manipulated variable at the cooling side during heating and cooling control is
expressed as a negative value.
· Position-proportional type
Setting Range Unit Default
[ ]: Hold/[ ]: Open/[ ]: Close None

F Related articles
MV at stop : 3.6 Starting and Stopping Operation (page 3-13)
MV at PV error : 8.2 How to Use the Error Display (page 8-3)
See

5--21
E5AK

CHAPTER 5 PARAMETERS

Level 2 Mode

MV upper limit Conditions of Use

The control must be advanced PID con-
trol, and ST must be set to OFF.
MV lower limit

MV change rate limit

· The “MV upper limit” and “MV lower limit” parameters set the upper and lower lim-
its of the manipulated variable. When the manipulated variable calculated by the
Function
E5AK controller is outside of the upper-and lower-limit range, the upper limit or
lower limit set to these parameters is output, respectively.
However, note that these parameters are disabled during position-proportional con-
trol.
· The “MV change rate limit” parameter sets the maximum permissible change width
per second of the manipulated variable (on the position-proportional control, valve
opening). If a change in the manipulated variable (on the position-proportional con-
trol, valve opening) causes this parameter setting to be exceeded, the calculated value
is reached while changing the value by the per-second value set in this parameter.
This function is disabled when the set value is “0.0”.

· MV upper limit
The setting ranges during standard control and heating and cooling control are dif-
Comment
ferent. Also, the manipulated variable at the cooling side during heating and cooling
control is expressed as a negative value.

Control Method Setting Range Unit Default

Standard MV lower limit +0.1 to 105.0 % 105.0
Heating and cooling 0.0 to 105.0 % 105.0

· MV lower limit
The setting ranges during standard control and heating and cooling control are dif-
ferent. Also, the manipulated variable at the cooling side during heating and cooling
control is expressed as a negative value.

Control Method Setting Range Unit Default

Standard -5.0 to MV upper limit -0.1 % -5.0
Heating and cooling -105.0 to 0.0 % -105.0

· MV change rate limit

Setting Range Unit Default

0.0 to 100.0 % 0.0

F Related article
4.2 Operating Condition Restrictions/Manipulated variable restrictions (page 4-5)
See

5--22
E5AK

Level 2 Mode

Input digital filter

· Sets the time constant of the input digital filter. The following figures shows the effect
on data after passing through the digital filter.
Function PV before passing through filter

A
PV after passing through filter

0.63A

Time
constant Time

Input digital filter

Setting Range Unit Default

0 to 9999 Second 0

Comment

Open/close hysteresis Conditions of Use

Control must be position-proportional con-
trol.

· Provides hysteresis at ON/OFF switching of open or close output in position-propor-

tional control.
Function

Setting Range Unit Default

0.1 to 20.0 % 0.8

Comment

F Related article
4.1 Selecting the Control Method/Position-proportional Control (page 4-3)

See

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24

Model

5--23
E5AK

CHAPTER 5 PARAMETERS

Level 2 Mode

Alarm 1 hysteresis Conditions of Use

Alarms must be assigned as outputs. For
Alarm 2 hysteresis example, if alarm outputs 1 and 2 only are
assigned as outputs, the “alarm 3 hystere-
Alarm 3 hysteresis sis” parameter cannot be used.

· This parameter is for checking the hysteresis of alarm outputs 1 to 3.

Function

Setting Range Unit Default

0.01 to 99.99 %FS 0.02

Comment

F Related article
3.4 Setting Alarm Type (page 3-9)
See F Related parameters
“Alarm 1 type” “Alarm 2 type” “Alarm 3 type” “Alarm 1 open in alarm” “Alarm 2 open
in alarm” “Alarm 3 open in alarm” (setup mode)
“Alarm value 1” “Alarm value 2” “Alarm value 3” (level 1 mode)

Input shift upper limit Conditions of Use

The input type must be set to temperature
input (thermocouple or platinum resis-
Input shift lower limit tance thermometer).

· Sets each of the shift amounts for the input shift upper and lower limit values.

Function

Setting Range Unit Default

-199.9 to 999.9 _C or _F 0.0

Comment

F Related article
3.2 Setting Input Specifications (page 3-4)
See F Related parameter
“Input type” (setup mode)

5--24
E5AK

Setup Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” and “1”.
· This mode contains the parameters for setting the basic specifications of the E5AK
controller. These parameters include parameters for specifying the input type, scal-
ing, output assignments, and direct/reverse operation.
· To select this mode when in the levels 0 to 2, expansion, option and calibration modes,
press the key for 1 second minimum. The display changes to the menu display.
If you select [ ] using the key then press the key for 1 second mini-
mum, the controller enters the setup mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
Input type 5-26

Scaling upper limit 5-27

Scaling lower limit 5-27

Decimal point 5-27

_C/_F selection 5-28

Parameter initialize 5-27

Control output 1 assignment 5-28

Control output 2 assignment 5-28

Auxiliary output 1 assignment 5-29

Auxiliary output 2 assignment 5-29

Alarm 1 type 5-30

Alarm 1 open in alarm 5-31

Alarm 2 type 5-30

Alarm 2 open in alarm 5-31

Alarm 3 type 5-30

Alarm 3 open in alarm 5-31

Direct/Reverse operation 5-31

5--25
E5AK

CHAPTER 5 PARAMETERS

Setup Mode

Input type

· Sets the sensor type by the code.

Function

· Set the code according to the following table. Default is “2: K1 thermocouple”.
Set value Input Type
0 JPt -199.9 to 650.0 (_C) /-199.9 to 999.9 (_F)
Comment Platinum resistance thermometer
1 Pt -199.9 to 650.0 (_C) /-199.9 to 999.9 (_F)
2 K1 -200 to 1300 (_C) /-300 to 2300 (_F)
3 K2 0.0 to 500.0 (_C) /0.0 to 900.0 (_F)
4 J1 -100 to 850 (_C) /-100 to 1500 (_F)
5 J2 0.0 to 400.0 (_C) /0.0 to 750.0 (_F)
6 T -199.9 to 400.0 (_C) /-199.9 to 700.0 (_F)
7 E 0 to 600 (_C) /0 to 1100 (_F)
8 L1 -100 to 850 (_C) /-100 to 1500 (_F)
9 L2 0.0 to 400.0 (_C) /0.0 to 750.0 (_F) Thermocouple
10 U -199.9 to 400.0 (_C) /-199.9 to 700.0 (_F)
11 N -200 to 1300 (_C) /-300 to 2300 (_F)
12 R 0 to 1700 (_C) /0 to 3000 (_F)
13 S 0 to 1700 (_C) /0 to 3000 (_F)
14 B 100 to 1800 (_C) /300 to 3200 (_F)
15 W 0 to 2300 (_C) /0 to 4100 (_F)
16 PLII 0 to 1300 (_C) /0 to 2300 (_F)
17 4 to 20mA
Current input
18 0 to 20mA
19 1 to 5V
20 0 to 5V Voltage input
21 0 to 10V

F Related article
3.2 Setting Input Specifications (page 3-4)
See F Related parameters
When input type is set to temperature input:
“_C/_F selection” (setup mode)
When input type is set to voltage input or current input:
“Scaling upper limit” “Scaling lower limit” “Decimal point” (setup mode)

5--26
E5AK

Setup Mode

Scaling upper limit Conditions of Use

The input type must be set to analog input
Scaling lower limit (voltage or current input).

Decimal point

· This parameter can be used only when voltage input or current input is selected as
the input type.
· When voltage input or current input is selected as the input type, scaling is carried
Function
out. Set the scaling upper limit in the “scaling upper limit” parameter and the scaling
lower limit in the “scaling lower limit” parameter.
· The “decimal point” parameter specifies the decimal point position of parameters
(set point, etc.) whose unit is set to EU (Engineering Unit).

· Scaling upper limit, Scaling lower limit

Parameter Setting Range Unit Default
Comment Scaling upper limit Scaling lower limit +1 to 9999 EU 100
Scaling lower limit -1999 to scaling upper limit -1 EU 0

· Decimal point : default : 0

Set Value Setting Example
0 0 digits past decimal point 1234
1 1 digit past decimal point 123.4
2 2 digits past decimal point 12.34
3 3 digits past decimal point 1.234

F Related article
3.2 Setting Input Specifications (page 3-4)
F Related parameter
See
“Input type” (setup mode)

Parameter initialize

· Returns parameter settings to their defaults. However, note that the following
parameters are not affected by execution of this parameter:
“input type”, “scaling upper limit”, “scaling lower limit”, “decimal point” and
Function
“_C/_F selection”.

· When this parameter is selected, [ ] (“no”) is first displayed. To initialize parame-

ters, press the key to specify [ ] (“yes”).

Example
of use

5--27
E5AK

CHAPTER 5 PARAMETERS

Setup Mode

_C/_F selection Conditions of Use

The input type must be set to temperature
input (thermocouple or platinum resis-
tance thermometer).

· This parameter can be used when thermocouple or platinum resistance thermometer

is selected as the input type.
· Set the temperature input unit to either of “_C” or “_F”.
Function

Setting Range Default

: _C / : _F

Comment
F Related article
3.2 Setting Input Specifications (page 3-4)
F Related parameter
See
“Input type” (setup mode)

Control output 1 Conditions of Use

assignment The control must be standard control or
heating and cooling control.
Control output 2
assignment

· Assigns the output functions to either of control output 1 or 2.

· The following seven output functions can be assigned as outputs:
Control output (heat), Control output (cool), Alarms 1 to 3, HBA, and LBA.
Function
· Errors 1, 2 and 3 cannot be assigned as outputs.
· When the output function assigned to control output 1 is ON, the “OUT1” LED lights.
However, note that the OUT1 LED does not light when control output (heat) or control
output (cool) are assigned to linear outputs such as current and voltage.
· When the output function assigned to control output 2 is ON, the “OUT2” LED lights.

Symbol
Control output Control output
Function Alarm 1 Alarm 2 Alarm 3 HBA LBA
(heat) (cool)
Comment
Defaults:
“Control output 1” = [ ], “Control output 2” = [ ]

F Related article
3.3 Setting Output Specifications (page 3-6)
F Related parameters
See
· Alarm-related parameters
· Heating and cooling related parameter
“LBA detection time” (level 2 mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

5--28
E5AK

Setup Mode

Auxiliary output 1 assignment

Auxiliary output 2 assignment

· Assigns output functions to either of auxiliary output 1 or 2.

· The following eight output functions can be assigned as outputs:
Function Alarms 1 to 3, HBA, LBA, Error 1 (input error), Error 2 (A/D converter error),
and Error 3 (remote SP input error).
· Control output (heat) and control output (cool) cannot be assigned as outputs.
· Error 3 can be assigned only when the remote SP function is enabled.
· When the output function assigned to auxiliary output 1 or auxliary output 2 is ON,
the “SUB1” or “SUB2” LED lights.

Symbol
Function Alarm 1 Alarm 2 Alarm 3 HBA LBA Error 1 Error 2 Error 3

Comment Defaults: “Auxiliary output 1”= [ ], “Auxiliary output 2”= [ ]

F Related article
3.3 Setting Output Specifications (page 3-6)
See F Related parameter
· Alarm-related parameter
“LBA detection time” (level 2 mode)

5--29
E5AK

CHAPTER 5 PARAMETERS

Setup Mode

Alarm 1 type Conditions of Use

Alarms must be assigned as outputs. For
Alarm 2 type example, if alarm outputs 1 and 2 only are
assigned as outputs, the “alarm 3 type”
Alarm 3 type parameter cannot be used.

· “Alarm 1 to 3 type” parameters specify the operation of the alarm by the one of the
set values in the following table. For details of operation at an alarm, see page 3-9.
Function

Set Value Settings Set Value Settings

1 Upper-and lower-limit alarm 7 Lower-limit alarm with standby
(deviation) sequence (deviation)
Comment 2 Upper-limit alarm (deviation) 8 Absolute-value upper-limit alarm
3 Lower-limit alarm (deviation) 9 Absolute-value lower-limit alarm
4 Upper-and lower-limit range alarm 10 Absolute-value upper-limit alarm with
(deviation) standby sequence
5 Upper-and lower-limit alarm with 11 Absolute-value lower-limit alarm with
standby sequence (deviation) standby sequence
6 Upper-limit alarm with standby
sequence (deviation)
Defaults: 2 (Deviation upper limit)

F Related article
3.4 Setting Alarm Type (page 3-9)
See F Related parameters
“Alarm value 1” “Alarm value 2” “Alarm value 3” (level 1 mode)
“Alarm 1 hysteresis” “Alarm 2 hysteresis” “Alarm 3 hysteresis” (level 2 mode)
“Alarm 1 open in alarm” “Alarm 2 open in alarm” “Alarm 3 open in alarm” “Control
output 1 assignment” “Control output 2 assignment” “Auxiliary output 1 assign-
ment” “Auxiliary output 2 assignment” (setup mode)

5--30
E5AK

Setup Mode

Alarm 1 open in alarm Conditions of Use

Alarms must be assigned as outputs. For
Alarm 2 open in alarm example, if alarm outputs 1 and 2 only are
assigned as outputs, the “alarm 3 open in
Alarm 3 open in alarm alarm” parameter cannot be used.

· Selects the output states of alarms 1 to 3.

· When the controller is set to “close in alarm,” the status of the alarm output function
Function is output as it is. When set to “open in alarm,” the status of the alarm output function
is output inverted. The following table shows the relationship between alarm output
functions, output and output LEDs.

Alarm Output Output LED

ON ON Lit
Close in alarm
OFF OFF Not lit
ON OFF Lit
Open in alarm
OFF ON Not lit

Setting Range Default

[ ] : Close in alarm/ [ ]:Open in alarm [ ]

Comment
F Related article
3.4 Setting Alarm Type (page 3-9)
See F Related parameters
“Alarm value 1” “Alarm value 2” “Alarm value 3” (level 1 mode)
“Alarm 1 hysteresis” “Alarm 2 hysteresis” “Alarm 3 hysteresis” (level 2 mode)
“Alarm 1 open in alarm” “Alarm 2 open in alarm” “Alarm 3 open in alarm”
“Control output 1 assignment” “Control output 2 assignment” “Auxiliary output 1
assignment” “Auxiliary output 2 assignment” (setup mode)

Direct/Reverse operation

· “Direct operation” (or normal operation) refers to control where the manipulated
variable is increased according to the increase in the process value. Alternatively,
Function
“reverse operation” refers to control where the manipulated variable is increased
according to the decrease in the process value.

Setting Range Default

[ ] : Reverse operation/ [ ]:Direct operation [ ]

Comment

F Related article
3.3 Setting Output Specifications/Direct/reverse operation (page 3-7)
See

5--31
E5AK

CHAPTER 5 PARAMETERS

Expansion Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” and “1”.
· This mode contains the parameters for setting expanded functions. These parame-
ters include parameters for setting ST (self-tuning), setting the SP setting limiter,
selecting advanced PID and ON/OFF control, specifying the standby sequence reset
method, and automatic return of display mode.
· To select this mode when in the levels 0 to 2, setup, option and calibration modes,
press the key for 1 second minimum. The display changes to the menu display.
If you select [ ] using the key then press the key for 1 second mini-
mum, the controller enters the expansion mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
Set point upper limit 5-33

Set point lower limit 5-33

PID / ON/OFF 5-33

ST 5-34

ST stable range 5-34

a 5-34

AT calculated gain 5-35

Standby sequence reset method 5-35

Automatic return of display mode 5-36

AT hysteresis 5-36

LBA detection width 5-36

5--32
E5AK

Expansion Mode

Set point upper limit

Set point lower limit

· Limits the upper and lower limits of the set point. When the set point exceeds the set-
tings of the “Set point upper limit” and “Set point lower limit” parameters, the E5AK
controller regards the settings of the “Set point upper limit” and “Set point lower
Function
limit” parameters as the set points.
· When the input type is changed to temperature input, the set point upper and lower
limits are changed to the upper and lower limits of the currently selected sensor. And
when the input type is changed to analog input, the set point upper and lower limits
are changed to the scaling upper and lower limits.
· During temperature input, the decimal point position is dependent on the currently
selected sensor, and during analog input on the results of scaling.

Parameter Setting Range Unit Default

SP setting upper limit SP setting lower limit +1 to scaling upper limit EU 1300
SP setting lower limit Scaling lower limit to SP setting upper limit -1 EU -200
Comment
During temperature input, the range becomes the range of use of the selected sensor
instead of the scaling upper and lower limit values.

F Related article
4.2 Operating Condition Restrictions (page 4-5)
F Related parameters
See
“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (setup
mode)

PID / ON/OFF Condition of Use

Control must be standard control or heat-
ing and cooling control.

· Selects advanced PID control or ON/OFF control.

Function
Setting Range Default
[ ] : advance PID/ [ ] :ON/OFF [ ]

Comment

F Related article
4.1 Selecting the Control Method/ON/OFF control (page 4-4)
F Related parameters
See
“Hysteresis (heat)” “Hysteresis (cool)” (level 1 mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24

Model

5--33
E5AK

CHAPTER 5 PARAMETERS

Expansion Mode

ST Conditions of Use
The input type must be set to temperature
input, and the control must be standard
ST stable range control and advanced PID control.

· When the “ST” parameter is set to “ON”, the self-tuning (ST) function is active. Dur-
ing operation of the ST function, the power on the load side connected to the control
Function
output must be turned ON at the same time or before start of E5AK operation.
· The “ST stable range” parameter sets the stable range width during self-tuning.
However, note that this parameter cannot be used when the “ST” parameter is set to
“OFF”.

Parameter Setting Range Unit Default

ST [ ]: ST function OFF/[ ]: ST function ON None [ ]
ST stable range 0.1 to 999.9 _C or _F 15.0
Comment

F Related article
Fuzzy self-tuning (page A-14)
See F Related parameters
“Input type” (setup mode)
“PID / ON/OFF” (expansion mode)

a Conditions of Use
The control must be advanced PID con-
trol, and ST must be set to OFF.

· Usually use the default value.

· Sets advanced PID-control parameter a.
Function

Setting Range Unit Default

0.00 to 1.00 None 0.65

Comment

F Related parameter
“PID / ON/OFF” (expansion mode)
See

5--34
E5AK

Expansion Mode

AT calculated gain Conditions of Use

The control must be advanced PID con-
trol, and ST must be set to OFF.

· Usually use the default value.

· Sets the gain when adjusting the PID parameters by auto-tuning.
Function · To give priority to response, decrease the set value of this parameter. To give priority
to stability, increase the set value of this parameter.

Setting Range Unit Default

0.1 to 10.0 None 1.0

Comment

F Related parameters
“AT Execute/Cancel” (level 1 mode)
See
“PID / ON/OFF” (expansion mode)

Standby sequence reset method

· Selects the conditions for enabling reset after the standby sequence of the alarm has
been canceled.
Function · Condition A:
Control started (including power ON), and alarm value, input shift value or set point
(except for changing SP mode or during Remote SP) changed.
· Condition B:
Power ON

Setting Range Default

0: Condition A / 1: Condition B 0

Comment

F Related parameters
“Alarm 1 type” “Alarm 2 type” “Alarm 3 type” (setup mode)
See

5--35
E5AK

CHAPTER 5 PARAMETERS

Expansion Mode

Automatic return of display mode

· If you do not operate any of the controller keys for the time set in this parameter when
in levels 0 to 2 modes, the display automatically returns to the PV/SP display.
Function · When this parameter is set to “0”, this function is disabled.
· This parameter is invalid while the menu is displayed.

Setting Range Unit Default

0 to 99 Second 0

Comment

AT hysteresis Conditions of Use

The control must be advanced PID con-
trol, and ST must be set to OFF.

· Usually use the default value.

· The levels of limit cycle operations during AT execution are given hysteresis at event
Function ON/OFF switching. This parameter sets this hysteresis width.

Setting Range Unit Default

0.1 to 9.9 %FS 0.2

Comment

LBA detection width Conditions of Use

The LBA (Loop Break Alarm) function
must be assigned as an output.

· This parameter can be used when LBA is assigned as an output.

· When the change width of the manipulated variable is below the width set in this
Function parameter, the controller regards this as detection of an LBA.

Setting Range Unit Default

0.0 to 999.9 %FS 0.2

Comment

5--36
E5AK

Option Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0” and “1”.

· You can select this mode only when the option unit is set in the controller. In this
mode, you can set the communications conditions, transfer output and event input
parameters to match the type of option unit set in the controller.
· To select this mode when in the levels 0 to 2, setup, expansion and calibration modes,
press the key for 1 second minimum. The display changes to the menu display.
If you select [ ] using the key then press the key for 1 second mini-
mum, the controller enters the option mode.
· To select parameters in this mode, press the key. To change parameter settings,
use the or keys.
· The following table shows the parameters supported in this mode and the page where
the parameter is described.
Symbol Parameter Name Page
Multi-SP function 5-38
Event input assignment 1 5-39
Event input assignment 2 5-39

Event input assignment 3 5-39

Event input assignment 4 5-39

Communication stop bit 5-40

Communication data length 5-40
Communication parity 5-40
Communication baud rate 5-40
Communication unit No. 5-40
Transfer output type 5-41

Transfer output upper limit 5-41

Transfer output lower limit 5-41
HBA latch 5-42

Motor calibration 5-42

Travel time 5-43
PV dead band 5-43
Remote SP enable 5-44
Remote SP upper limit 5-44
Remote SP lower limit 5-44
SP tracking 5-45

5--37
E5AK

CHAPTER 5 PARAMETERS

Option Mode

Multi-SP function Conditions of Use

The event input function must be in use.

· This parameter specifies the number of event inputs when switching set points (SP)
0 to 3.
Function · When set to “0”, the set point cannot be switched by event input.
· When this parameter is set to “1”, set points 0 and 1 can be used. When set to “2”, set
points 0 to 3 can be used.

Setting Range Unit Default

0 to 2 None 2

Comment

F Related article
4.3 How to Use Event Input (4-8)
See F Related parameter
“Event input assignment 1” (option mode)

F Option unit
E53-AKB
Model

5--38
E5AK

Option Mode

Event input assignment 1 Event input assignment 3

Event input assignment 2 Event input assignment 4

Conditions of Use
Event input other than the multi-SP func-
tion must be specified when the event
input function is in use.

· When one E53-AKB unit is mounted, only “Event input assignment 3” and “Event
input assignment 4” can be used.
Function · This parameter specifies event input other than the multi-SP function. The following
four functions can be specified:
Run/Stop, Remote/Local, Auto/Manual, SP mode.
The Remote/Local function can be used on E53-AK01/02/03 option units. The SP
mode functions can be used only when the ”Remote SP enable” parameter is ON.
· Event input (Run/Stop, Manual/Auto, and SP mode) is disabled while the menu is dis-
played.
It is also disabled in set up, expantion, option and calibration modes.

Symbol Function Event Input Operation

Not specified Event input disabled
Run/Stop ON: Stop/OFF: Run
Comment
Remote/Local ON: Remote/OFF: Local
Manual/Auto ON: Manual/OFF: Auto
SP mode ON: Remote SP/OFF: Local SP

· Default
E53-AKB×1 E53-AKB×2
Event input assignment 1 --
Event input assignment 2 --
Event input assignment 3
Event input assignment 4

F Related article
4.3 How to Use Event input (page 4-8)
See F Related parameters
“remote SP enable” “multi-SP function” (option mode)

F Option unit
E53-AKB
Model

5--39
E5AK

CHAPTER 5 PARAMETERS

Option Mode

Communication stop bit Communication baud rate

Communication data length Communication unit No.

Communication parity Conditions of Use

The communications function must be in
use.

· These parameters set the communications conditions. Make sure that the stop bit,
data length, parity and baud rate of the host computer and the E5AK controller are
Function
matching. These parameters are valid when the power is turned ON again or when
level 0 to 2 modes are switched.
· When connecting two or more E5AK controllers to the host computer, set unit Nos.
that will not conflict with the unit Nos. of other controllers.

· “Communication stop bit” parameter

Setting Range Unit Default

Comment 1, 2 Bits 2

· “Communication data length” parameter

Setting Range Unit Default

7, 8 Bits 7

· “Communication parity” parameter

Setting Default
[ ]: None/ [ ]:Even/[ ]:Odd [ ]

· “Communication baud rate” parameter

Setting Range Unit Default

1.2, 2.4, 4.8, 9.6, 19.2 kbps 9.6

· “Communication unit No.” parameter

Setting Range Unit Default

0 to 99 None 0

F Related article
Chapter6 USING THE COMMUNICATIONS FUNCTION
See F Related parameter
“Remote/Local” (level 2 mode)

F Option unit
E53-AK01/02/03
Model

5--40
E5AK

Option Mode

Transfer output type Conditions of Use

The transfer output function must be in
use.
Transfer output upper limit

Transfer output lower limit

· These parameters set the transfer output conditions.

· The “transfer output type” parameter selects one of the following as the transfer out-
Function put type, and assigns this to transfer output:
Set point, Set point during SP ramp, Process value, Manipulated variable (heat)
(standard type), Manipulated variable (cool) (This can selected only during heating
and cooling control on a standard type controller.), Valve opening (position-propor-
tional control)
· The “transfer output upper limit” and “transfer output lower limit” parameters are
used for scaling of transfer output. The setting range varies according to this output
data. Also, a lower limit value larger than the upper limit value may be set.
· During temperature input, the decimal point position of the set point, set point dur-
ing SP ramp or process value is dependent on the currently selected sensor, and dur-
ing analog input on the results of scaling.

Transfer Output Lower Limit to

Transfer output Type
Transfer Output Upper Limit
[ ] Set point Set point lower limit value to Set point upper limit value
Comment
[ ] Set point during SP ramp Set point lower limit value to Set point upper limit value
[ ] Process value Scaling lower limit to scaling upper limit
[ ] Manipulated variable (heat) -5.0% to 105.0% (Standard control), 0.0 to 105.0% (heating
and cooling control)
[ ] Manipulated variable (cool) 0.0% to 105.0%
[ ] Valve opening -10.0 to 110.0%

· Default : [ ]
· The output ranges of the set point, set point during SP ramp or process value when
temperature input is selected are the ranges supported by the selected sensor.
· When you have selected the “manipulated variable (heat)” parameter, the transfer
output lower limit during heating and cooling control becomes “0.0”.

F Related article
4.7 How to Use Transfer Output (page 4-17)
See

F Option unit
E53-AKF
Model
5--41
E5AK

CHAPTER 5 PARAMETERS

Option Mode

HBA latch Conditions of Use

The HBA output function must be
assigned.

· When this parameter is set to ON, the heater burnout alarm is held until either of the
following conditions is satisfied:
Function
a Set the heater burnout set value to “0.0”.
b Reset the controller. (Turn the controller’s power OFF then back ON again.)

Setting Range Default

[ ]: Enabled/[ ]: Disabled [ ]

Comment

F Related article
4.5 How to Use the Heater Burnout Alarm (page 4-13)
See F Related parameters
“Control output assignment 1” “Control output assignment 2” “Auxiliary output
assignments 1” “Auxiliary output assignments 2” (setup mode)

E5AK-AA2 AC100-240
E5AK-AA2 AC/DC24
Model

Motor Calibration Conditions of Use

The control must be position-proportion
control.

· Executes motor calibration. Be sure to execute this parameter when monitoring the
valve opening. (Displays cannot be switched while motor calibration is being
executed.)
Function
· The “travel time” parameter is also reset when this parameter is executed.

· The default setting is “ ”.

· Motor calibration is executed when “ ” is selected.
· After motor calibration is completed, the setting automatically returns to “ ”.
Example
of use

F Related article
4.1 Selecting the Control Method/Position-proportional Control (page 4-3)
F Related parameter
See
“Travel time” (option mode)

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24
Model

5--42
E5AK

Option Mode

Travel Time Conditions of Use

The control must be position-proportion
control.

· Sets the time from valve fully opened to valve fully closed.
· The travel time is automatically set when the “motor calibration” parameter is
Function
executed.

Setting Range Unit Default

1 to 999 Second 30

Comment

F Related article
4.1 Selecting the Control Method/Position-proportional Control (page 4-3)

See
F Related parameter
“Motor Calibration” (option mode)

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24
Model

PV dead band Conditions of Use

The control must be position-proportion
control.

· Sets a band within which valve will not move.

Function Set point

PV dead band

Process value

· This function is for use to reduce valve movement, but consequently reduces control
performance within the PV deadband.
· The decimal point is dependent on scaling.

Setting Range Unit Default

0 to 9999 EU 0

Comment

F Related parameters
“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (setup mode)

See

E5AK-PRR2 AC100-240
E5AK-PRR2 AC/DC24
Model
5--43
E5AK

CHAPTER 5 PARAMETERS

Option Mode

Remote SP enable Conditions of Use

ST must be OFF.

· When this parameter is set to “ON”, the remote SP and local SP can be switched for
use. (That is, to the SP mode can be specified.). Also, the “set point during SP ramp”
Function
parameter is enabled at all times.
· When this parameter is set to “OFF”, only the local SP can be used. The set point dur-
ing SP ramp is enabled only when the SP ramp function is enabled.

Setting Range Default

[ ]: Enabled/[ ]: Disabled [ ]

Comment

F Related article
4.4 How to Use the Remote SP (page 4-11)
See F Related parameters
“Set point during SP ramp” (level 0 mode)
“SP mode” (level 2 mode)

Remote SP upper limit Conditions of Use

The remote SP function must be enabled.
Remote SP lower limit

· Sets the remote SP upper and lower limit values. The upper limit value is the equiva-
lent to 20 mA, and the lower limit value is equivalent to 4 mA. Set the upper limit
Function
value in the “remote SP upper limit” parameter and the lower limit value in the
“remote SP lower limit” parameter.

RSP (%)

Upper limit value

Lower limit value

Input (mA)
4 20

· When the “SP setting upper limit” or “SP setting lower limit” parameters are
changed, the remote SP upper and lower limit values are forcibly changed to the SP
setting upper and lower limit values.

5--44
E5AK

Option Mode

Parameter Setting Range Unit Default

Remote SP upper limit SP setting lower limit to SP setting upper limit EU 1300
Comment Remote SP lower limit SP setting lower limit to SP setting upper limit EU -200

F Related article
4.4 How to Use the Remote SP (page 4-11)
See F Related parameters
“Decimal point” (setup mode)
“SP setting upper limit” “SP setting lower limit” (expansion mode)
“Remote SP enable” (option mode)

SP tracking enable Conditions of Use

The remote SP function must be enabled.

· Specifies the operation when the remote SP mode is switched to the local SP mode.
· When this parameter is set to “ON”, the local SP is changed to the remote SP value
Function used immediately before switching.
· When this parameter is set to “OFF”, the local SP is not influenced by the remote SP.

Setting Range Default

[ ]: Enabled/[ ]: Disabled [ ]

Comment

F Related article
4.4 How to Use the Remote SP (page 4-11)
See F Related parameters
“Set point during SP ramp” (level 0 mode)
“SP mode” (level 2 mode)

5--45
E5AK

CHAPTER 5 PARAMETERS

Calibration Mode

· The parameters in this mode can be used only when the “security” parameter (pro-
tect mode) is set to “0”. When selecting this mode for the first time after the E5AK
has left the factory, return the “security” parameter to “0”.
· This mode contains the parameters for user calibration of inputs and outputs. Only
parameters relating to input types specified in the “input type” parameter (setup
mode) can be used. Also, related output parameters can be used only when the com-
munications unit (E53-AKF) is added on.
· To select this mode when in the levels 0 to 2, setup, expansion and option modes, press
the key for 1 second minimum. The display changes to the menu display. If you
select [ ] using the key then press the key for 1 second minimum,
the controller enters the calibration mode.
· For details on parameters in the calibration mode, see Chapter 7 Calibration.

5--46
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

CHAPTER 6 6
USING THE
COMMUNICATIONS
FUNCTION
This chapter mainly describes communications with a host computer
and communications commands.

6.1 Outline of
the Communications Function . . . . . . . . . . 6-2
Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Transfer procedure . . . . . . . . . . . . . . . . . . . . . 6-2
Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2 Preparing for Communications . . . . . . . . . . 6-3
Cable connections . . . . . . . . . . . . . . . . . . . . . . 6-3
Setting the communications specifications 6-4
6.3 Command Configuration . . . . . . . . . . . . . . . . 6-5
6.4 Commands and Responses . . . . . . . . . . . . . . 6-6
Reading/writing parameters . . . . . . . . . . . . . 6-6
Issuing special commands . . . . . . . . . . . . . . . 6-10
6.5 How to Read Communications
Error Information . . . . . . . . . . . . . . . . . . . . . 6-12
End code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Undefined error . . . . . . . . . . . . . . . . . . . . . . . . 6-13
6.6 Program Example . . . . . . . . . . . . . . . . . . . . . . 6-14
How to use programs . . . . . . . . . . . . . . . . . . . 6-14
Program list (language:
IBM PC COMPATIBLE MACHINE) . . . . . 6-15
Examples of use . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6--1
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

6.1 Outline of the Communications Function

J Outline The communications function allows you to monitor and set E5AK
parameters by a program prepared and running on a host computer con-
nected to the E5AK controller. This chapter describes operations as
viewed from the host computer.

When using the communications function, the option unit for RS-232C,
RS-422 or RS-485 communications must be added on. The E5AK commu-
nications function allows you to carry out the following:
· Reading/writing of parameters;
· Operation instructions; and
· Selecting the setting level.

The communications function assumes the following conditions:

· Writing of parameters is possible in during remote operation. Also,
parameters cannot be written during execution of auto-tuning;
· Writing parameters are provided with a setting level. Writing conditions
are as follows depending on the setting level:
Setting level 1: No restrictions
Setting level 0: Writing of parameters in the setup, expansion and
option modes only is prohibited.
· For details on switching between setting levels, see page 6-11.
· The “run/stop”, “remote/local” and “AT execute/cancel” parameters are
set aside from other parameters as special commands for instructing
operations.

J Transfer The host computer sends a “command frame” to the controller, and the
controller returns a “response frame” corresponding to the content of the
procedure
command sent by the host computer. In other words, a response frame is
returned for each command frame sent.
The following diagram shows command frame/response frame opera-
tions.
Command frame Command frame

Host computer
E5AK
Response frame

J Interface The host computer carries out communications conforming to the

RS-232C, RS-422 or RS-485 interface specifications.
Option units supporting the RS-232C, RS-422 and RS-485 specifications
are as follows:
· Option units
E53-AK01 (RS-232C)
E53-AK02 (RS-422)
E53-AK03 (RS-485)

6--2
E5AK

6.2 Preparing for Communications

6.2 Preparing for Communications

For details on wiring when using the communications, see Chapter 2 Prep-
arations.

J Cable connections
F RS-232C · Only one controller can be connected to the host computer.
· The cable length should not exceed 15 meters.
· Use shielded twisted-pair cables (AWG28 or more) for the cables.
25 pins 9 pins
E5AK E5AK
IBM-PC/XT IBM-PC/AT
DE-25 DE-25
Female Female
DTE RS-232C DTE RS-232C
No. No.
(SD) TXD 2 (RD) RXD 2
20 SD 20 SD
(RD) RXD 3 19 RD (SD) TXD 3 19 RD
18 SG 18 SG
(RS) RTS 4 (ER) DTR 4
(CS) CTS 5 (SG) COMMON 5
(DR) DSR 6 (DR) DSR 6

(SG) COMMON 7 (RS) RTS 7

(CS) CTS 8
(ER) DTR 20
FG 1
FG 1

F RS-422 · Up to 32 controllers including a computer can be connected to the host

computer.
· The total cable length should not exceed 500 meters.
· Use shielded twisted-pair cables (AWG28 or more) for the cables.
· Attach terminators to the controllers at both ends of a series of control-
lers connected in an open configuration. For example, in the following
configuration, connect the terminator to the host unit and unit No.30,
and do not connect terminators to unit Nos.0 to 29.
· Use terminators having a resistance of 240 W (1/2 W). The total resis-
tance of both ends should be at least 100 W.
Host computer E5AK (No.0) E5AK (No.30)
RS-422 RS-422 RS-422
TerminatorX2
No. No.
Shielded cable (240 W 1/2 W)
RDA 32 SDA 32 SDA
RDB 31 SDB 31 SDB
SDA 19 RDA 19 RDA
SDB 20 RDB 20 RDB
SG 18 SG 18 SG
FG

6--3
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

F RS-485 · Up to 32 controllers including a computer can be connected to the host

computer.
· The total cable length should not exceed 500 meters.
· Use shielded twisted-pair cables (AWG28 or more) for the cables.
· Attach terminators to the controllers at both ends of a series of control-
lers connected in an open configuration. For example, in the following
configuration, connect the terminator to the host unit and the unit
No.30, and do not connect terminators to unit Nos.0 to 29.
· Use terminators having a resistance of 120W (1/2 W). The total resis-
tance of both ends should be at least 54W .
Host computer
RS-485 A < B : Mark
Shielded cable A > B : Space

-
+
Terminator
(120W 1/2W)
FG
E5AK (No.0) E5AK (No.30)
RS-485 RS-485
No. No.

32 A 32 A

31 B 31 B
19 A 19 A
20 B 20 B

J Setting the com- Match the communications specifications of the host computer and E5AK
munications controller. When two or more controllers are connected to the host com-
specifications puter, make sure that the communications specifications of all controllers
are the same.
This section describes how to set the communications specifications of the
E5AK controller. For details on the host computer, see the relevant manual
supplied with the host computer.

F Communications Set the communications specifications of the E5AK in the controller’s

parameters communications parameters. The communications parameters are set on
the front panel of the E5AK controller.
The following table shows the communications parameters (option mode)
provided on the E5AK controller and their respective settings.

Parameter/Symbol Setting Set Value

Unit No. 0 to 99 0 to 99
Baud rate 1.2/2.4/4.8/9.6/19.2 (kbps) 1.2/2.4/4.8/ 9.6 /19.2
Bit length 7/8 (bit) 7 /8
Parity None/even/odd / /
Stop bit 1/2 1/ 2
Inverted items are factory-settings.

6--4
E5AK

6.3 Command Configuration

6.3 Command Configuration

Command configuration is as follows and are paired with a response.

2B 1B 2B 4B 2B 2B
Unit Command Data FCS
Command
No. code
@ * CR
Command type
No data sections in the read commands.
2B 1B 2B 2B 4B 2B 2B
Unit Command End Data FCS
Response code
No. code
@ * CR
End code = 00
Command type

2B 1B 2B 2B 2B 2B
Unit Command End FCS
Response
No. code code
@ * CR
End code = 00
Command type

· “@”
The start character. This character must be inserted before the leading
byte.
· Unit No.
Specifies the “unit No.” of the E5AK. If there are two or more transmis-
sion destinations, specify the desired destination using “unit No.”
· Command type
Specifies the command type by codes “1” to “3”: parameter read, param-
eter write and special commands.
· Command code
Specifies the command for each command type. With parameter read/
write commands, this becomes the parameter No.
· Data
Specifies the set value or setting content. In the parameter read com-
mand, set dummy data “0000”. In the response, this is inserted only
when the end code is “00”.
· End code
Sets the communication results. For details on the types and meanings
of end codes, see 6.5 How to Read Communications Error Information
(page 6-12).
· FCS (Frame Check Sequence)
Set the frame check results from the start character to the data section.
For details on the frame check, see 6.6 Program Example (page 6-14).
· “*” “CR (Carriage Return) code”
Indicates the end (terminator) of the command or response block.

6--5
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

6.4 Commands and Responses

This section describes commands and response in detail. The conventions

used in this section and data restrictions are as follows:
· Data is expressed in 1-byte units and in ASCII code.
· When the read or write data is a numerical value, the data to be set must
conform to the following conditions:
(1) The decimal point “.” is not indicated in fractions.
(2) The leftmost bit of minus numerical data must be expressed as
follows:
[example]
10.0=[0100], -150.0=[A500], -15=[F015]

J Reading/writing parameters
F Reading parameters
2B 2B 4B 2B 2B
Unit Parameter FCS
Command No.
No.
@ 1 X X X X * CR
X: Any value acceptable

2B 2B 2B 4B 2B 2B
Unit Parameter End Read data FCS
Response No. No.
code
@ 1 * CR

F Writing parameters
2B 2B 4B 2B 2B
Unit Parameter Write data FCS
Command No.
No.
@ 2 * CR

2B 2B 2B 4B 2B 2B
Unit Parameter End Write data FCS
Response No. No.
code
@ 2 * CR

Reading or writing of the parameters of a specified controller is executed.

· Writing is possible only during remote operation.
· Reading is impossible during executing auto-tuning.
· The following are set aside as special commands. For details, see page
6-10.
“run/stop”, “remote/local”, “AT execute/cancel”
· For details on parameters in each setting level, see the tables on pages
6-7 and 6-9.

6--6
E5AK

6.4 Commands and Responses

Parameter No. Parameter Data Setting and Monitor Range Mode

00 PV monitor *1 Scaling lower limit -10% to scaling upper limit +10% *2
86 SP monitor during SP *1
SP lower limit to SP upper limit
ramp
04 MV monitor (heat) *1 -5.0 to 105.0 *3

*1 L
Level
l0
42 MV monitor (cool) 0.0 to 105.0
24 Remote SP monitor *1 Scaling lower limit to scaling upper limit
14 Valve opening monitor *1 -10.0 to 110.0
01 Set point SP lower limit to set point upper limit
10 Set point 0 SP lower limit to SP upper limit
11 Set point 1 SP lower limit to SP upper limit
12 Set point 2 SP lower limit to SP upper limit
13 Set point 3 SP lower limit to SP upper limit
02 Alarm value 1 -1999 to 9999
03 Alarm value 2 -1999 to 9999
41 Alarm value 3 -1999 to 9999
19 Proportional band 0.1 to 999.9
0 to 3999 *4
20 Integral time
21 Derivative time 0 to 3999
22 Cooling coefficient 0.01 to 99.99 Level 1

09 Dead band -19.99 to 99.99

87 Position-proportional dead
0.1 to 10.0
band
23 Manual reset value 0.0 to 100.0
06 Hysteresis (heat) 0.01 to 99.99
43 Hysteresis (cool) 0.01 to 99.99
07 Control period (heat) 1 to 99
08 Control period (cool) 1 to 99
17 Heater current monitor *1 0.0 to 55.0
18 Heater burnout alarm 0.0 to 50.0
*1 Possible only during reading
*2 During temperature input, the range becomes the range of use of the selected sensor.
*3 During heating and cooling control, the range becomes 0.0 to 105.0.
*4 During position-proportional control, the range becomes 1 to 3999.

About invalid Currently, if a command is used for invalid parameters (parameters that do not sat-
parameters isfy the conditions of use in Chapter 5), the “undefined” error (end code: 1C) is out-
put.

6--7
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

Parameter No. Parameter Data Setting Range Mode

44 SP ramp time unit 0: Minutes, 1: Hours
45 SP ramp set value 0 to 9999
46 LBA detection time 0 to 9999
47 MV at stop -5.0 to 105.0 *1

-5.0 to 105.0 *1
48 MV at PV error
MV lower limit +0.1 to 105.0 *2
50 MV upper limit
-5.0 to MV upper limit -0.1 *3
49 MV lower limit
51 MV change rate limit 0.0 to 100.0 Level 2
56 Input digital filter 0 to 9999
88 Open/close hysteresis 0.1 to 20.0
25 Alarm 1 hysteresis 0.01 to 99.99
26 Alarm 2 hysteresis 0.01 to 99.99
52 Alarm 3 hysteresis 0.01 to 99.99
53 Input shift upper limit -199.9 to 999.9
54 Input shift lower limit -199.9 to 999.9
0 to 21 *4
57 Input type
59 Scaling upper limit Scaling lower limit +1 to 9999
58 Scaling lower limit -1999 to scaling upper limit -1
60 Decimal point 0 to 3
30 _C/_F selection 0 : _C, 1 : _F
0 to 6 *5
61 Control output 1 assignment
0 to 6 *5
62 Control output 2 assignment
2 to 9 *5
63 Auxiliary output 1 assignment
*5
Setup
64 Auxiliary output 2 assignment 2 to 9
1 to 11 *6
65 Alarm 1 type
66 Alarm 1 open in alarm 0: closed in alarm, 1: open in alarm
1 to 11 *6
67 Alarm 2 type
68 Alarm 2 open in alarm 0: closed in alarm, 1: open in alarm
1 to 11 *6
69 Alarm 3 type
70 Alarm 3 open in alarm 0: closed in alarm, 1: open in alarm
71 Direct/Reverse operation 0: Reverse operation, 1: Direct operation
*1 During heating and cooling control, the range becomes -105 to 105.0. During position-proportional control, you can select between
*1 0: Hold/1: Open/2: Close. (Default is 0: Hold.)
*2 During heating and cooling control, the range becomes 0.0 to 105.0.
*3 During heating and cooling control, the range becomes -105.0 to 0.0
*4 See page 5-26.
*5 0: Control output (heat), 1: Control output (cool), 2: to 4: Alarms 1 to 3, 5: HBA, 6: LBA, 7 to 9: Errors 1 to 3
*6 See page 5-30.

6--8
E5AK

6.4 Commands and Responses

Parameter No. Parameter Data Setting Range Mode

28 Set point upper limit *1 Set point lower limit +1 to scaling upper limit
27 Set point lower limit *1 Scaling lower limit to Set point upper limit -1
72 PID / ON/OFF 0: Advanced PID, 1: ON/OFF
73 ST 0 : OFF, 1 : ON
34 ST stable range width 0.1 to 999.9
35 a 0.00 to 1.00 Expansion
p
85 AT calculated gain 0.1 to 10.0
0, 1 *2
37 Standby sequence reset method
36 Automatic return of display mode 0 to 99
93 AT hysteresis 0.1 to 9.9
55 LBA detection width 0.0 to 999.9
74 Multi-SP function 0 to 2
77 Event input assignment 3 --1 to 3 *3

--1 to 3 *3
78 Event input assignment 4
0 to 5 *4
79 Transfer output type
*4
81 Transfer output upper limit
*4
80 Transfer output lower limit
82 HBA latch 0: OFF, 1: ON Option
p
89 Travel time 1 to 999
38 PV dead band 0 to 9999
29 Remote SP enable 0: Enabled, 1: Disabled
91 Remote SP upper limit SP setting lower limit to SP setting upper limit
90 Remote SP lower limit SP setting lower limit to SP setting upper limit
39 SP tracking 0: OFF, 1: ON
*1 During temperature input, the range becomes the range of use of the selected sensor instead of the scaling upper/lower limit values
*2 See page 5-35.
*3 - -1: No specification, 0: Run/Stop, 1: Remote/Local, 2: Auto/Manual, 3: SP mode
*4 The following table shows the output ranges of the Transfer output lower and upper limits.

Transfer Output Lower Limit to

Transfer output Type
Transfer Output Upper Limit
0: Set point Set point lower limit value to Set point upper limit value
1: Set point during SP ramp Set point lower limit value to Set point upper limit value
2: Process value Scaling lower limit to scaling upper limit

3: Manipulated variable (heat) -5.0% to 105.0% (Standard control), 0.0 to 105.0% (heat-
ing and cooling control)
4: Manipulated variable (cool) 0.0% to 105.0%

5: Valve opening -10.0 to 110.0%

6--9
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

J Issuing special commands

2B 2B 4B 2B 2B
Unit Command Instruction code FCS
Command code
No.
@ 3 * CR
2B 2B 2B 4B 2B 2B
Unit Command End Instruction code FCS
Response No. code code
@ 3 * CR

The following functions are issued as special commands.

· Run/Stop (number of writings: 100000 operations)
Runs or stops programs. This command cannot be issued in setting level 1.
· Remote/Local (number of writings: 100000 operations)
Selects remote operation or local operation.
· RAM Write mode (number of writings: 100000 operations)
In the RAM mode, the local SP (set point and set points 0 to 3) are saved
to RAM, and in the backup mode, the local SP is saved to EEPROM.
· RAM data Save
When this command is issued, set points are saved to EEPROM.
· AT Execute/Cancel
Executes or cancels auto-tuning. This command cannot be issued in set-
ting level 1.
· SP mode (number of writings: 100000 operations)
Switches between local SP (LSP) and remote SP (RSP). This command
cannot be issued in setting level 1.
· Move to setting level 1
Issue this command when writing parameters in the setup, expansion
and option modes. On the E5AK, the parameter switches to the top
parameter “input type” of the setup mode, and control is stopped.
· Software reset
Resets E5AK operation by communications. A response is not returned
to this command. Also, communications with the E5AK cannot be car-
ried out for five seconds after reset.
· Status
Monitors the status of the E5AK. Two command groups are available,
A and B, depending on the command code. The response is returned in
bit units to the command code (4B) of the response frame. For details on
the monitoring details of each group, see page 6- -11.
F Command List Command No. Command Command Code
00 Run/Stop 0000: Run, 0001: Stop
02 Remote/Local 0000: Local, 0001: Remote
05 RAM write mode 0000: Backup, 0001: RAM
06 RAM data save 0000:
0000: Cancel, 0001: 40% AT execu-
07 AT Execute/Cancel
tion, 0002: 100% AT execution
08 SP mode 0000: LSP, 0001: RSP
09 Move to setting level 1 0000:
11 Software reset 0000:
14 Status 0000: A group, 0001: B group

6--10
E5AK

6.4 Commands and Responses

F A group
Bit Description [1] [0]
0 Heating side output *3 ON OFF *1

1 Cooling side output *4 ON OFF *1

2 Alarm output 1 ON OFF *2

3 Alarm output 2 ON OFF *2

4 Alarm output 3 ON OFF *2

5 LBA output ON OFF *2

6 HBA output ON OFF *2

7 Run/Stop Stop Run

8 Auto/Manual Manual Auto
9 Remote/Local Remote Local
10 SP mode RSP LSP
11 Auto-tuning AT exection OFF
12
13
14 Event input 3 ON OFF
15 Event input 4 ON OFF
*1 Always “OFF” at linear output
*2 Always “OFF” when output is not assigned
*3 During position-proportional control, output is Open.
*4 During position-proportional control, output is Close.

F B group
Bit Description [1] [0]
0 Setting level 1 0
1 RAM write mode RAM Backup
2 Control output 1 type Linear Pulse
3 Control output 2 type Linear Pulse
4 EEPROM RAM¸EEPROM RAM = EEPROM
5 Input error ON OFF
6 A/D converter error ON OFF
7 CT overflow ON OFF
8 CT hold ON OFF
9 Potentiometer error ON OFF
10 RSP input error ON OFF
11
12
13
14
15

To return to setting level 0 from setting level 1, issue the “software reset” command.
About Setting Levels If the parameter write command is issued for the setup and expansion modes in set-
ting level 0, an error occurs, and the end code (0D = Command cannot be executed)
is returned.

6--11
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

6.5 How to Read Communications Error Information

The result of communications on the E5AK can be checked by the end code in the response frame. Use this
end code to remedy errors that may occur.

J End code Communications are normal when the end code in the response is “00”.
If the end code is not “00”, this indicates that an error other that is not an
undefined error has occurred. The end code format is as follows and does
not contain a data area.
2B 1B 2B 2B 2B 2B
Unit Command End FCS
No. code code
@ * CR
Command type

End code 0D Code name Command cannot be executed

F Description · Writing was carried out during local operation.
· Writing was carried out during executing auto-tuning.
· An attempt was made to execute 40%AT during heating and cooling con-
trol or position-proportional control.
· An attempt was made to switch run/stop in setting level 1.
· An attempt was made to execute AT in setting level 1.
F Action · Issue the parameter read or write commands in conditions other than above.

End code 10 Code name Parity error

F Description Parity check error was detected in the received data.
F Action Check the communications condition. If the communications condition of
the host computer and E5AK controller match, then a probable cause is
a problem in the communications circuit of one or both of the host com-
puter and E5AK controller.

End code 11 Code name Framing error

F Description Stop bit cannot be detected.
F Action Check the communications condition. If the communications condition of
the host computer and E5AK controller match, then a probable cause is
a problem in the communications circuit of one or both of the host com-
puter and E5AK controller.

End code 13 Code name FCS error

F Description The FCS (Frame Check Sequence) do not match.

F Action Check the FCS program.

About the unit No. Responses are not returned unless the target unit for communications and the unit
No. in the command match.

6--12
E5AK

6.5 How to Read Communications Error Information

End code 14 Code name Format error

F Description The received command length does not match the length defined in the
frame format.

F Action Check the communications condition. If the communications condition of

the host computer and E5AK controller match, then a probable cause is
a problem in the communications circuit of one or both of the host com-
puter and E5AK controller.

End code 15 Code name Setting range error

F Description Numerical values or code values in the data are not within the setting
range.

F Action Check the parameter and read or write data of special commands.

J Undefined error
2B 2B 2B 2B
Unit FCS
No.
@ I C * CR

F Description · An undefined header code has been received.

· A currently invalid parameter (e.g. the scaling command during temper-
ature input) has been received.

F Action · Check the parameter No.

6--13
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

6.6 Program Example

J How to use programs

The program described below is for obtaining corresponding response frame data when
some of the command frame data is input.
The input format is as follows. The FCS and terminator are automatically generated,
and need not be input.

2B 1B 2B 4B 2B 2B
Unit Command Data FCS
No. code
@ * CR
Command type

Input data Automatically

generated

The output format is as follows. The content of the response frame is displayed as it is.

2B 1B 2B 2B 4B 2B 2B
Unit Command End Data FCS
No. code code
@ * CR
Command type

F Procedure
(1) Read the program.
(2) Enter “RUN”.
(3) When “send data:” is displayed, enter the command data (from @ to the command
string).
(4) The content of the response frame is displayed following “receive data:”.

F Conditions when running a program

· Set the communications condition as follows:
Baud rate : 9600 bps
Bit length : 7 bits
Parity : Even
Stop bit : 2
· Make sure that the communications cable is properly connected.

6--14
E5AK

6.6 Program Example

J Program list (language: IBM PC COMPATIBLE MACHINE)

1000 ’
1010 ’ PROGRAM : E5AK Communication Program
1020 ’ For IBM PC COMPATIBLE MACHINE
1050 ’
1060 ’ RS-232C SPEED: 9600BPS, PARITY: EVEN, DATA: 7, STOP: 2
1070 OPEN ”COM: 9600, E, 7, 2, CD0, CS0, DS0, RB256, RS ”FOR RANDAM AS #1 LEN=256
1080 REPEAT
1090 ’ Make Command
1100 PRINT ”send data : ” ;
1110 INPUT SEND$
1120 ’ FCS calculation
1130 FCS=0
1140 FOR IFCS=1 TO LEN (SEND$)
1150 FCS=FCS XOR ASC (MID$ (SEND$, IFCS, 1))
1160 NEXT
1170 FCS$=RIGHT$ (”0”+HEX$ (FCS), 2)
1180 ’ Send data to communication port
1190 PRINT #1, SEND$+FCS$+”*”
1200 ’ Receive data from communication port
1210 RECCNT=0: TMP$=””
1220 DRECLOOP:
1230 IF LOC (1) <> 0 THEN DREC1
1240 RECCNT=RECCNT+1
1250 IF RECCNT=5000 THEN *DRECERR ELSE DRECLOOP
1260 ‘DREC1
1270 TMP$=TMP$+INPUT$ (LOC (1), #1)
1280 IF RIGHT$ (TMP&, 1)=CHR$ (13) THEN DRECEND
ELSE RECCNT=0: GOTO DRECLOOP
1290 DRECERR:
1300 TMP$=”No response !!”
1310 DRECEND:
1320 RECV$=TMP$
1330 PRINT ”response: ”; RECV$
1340 ’ Repeat to make Command
1350 ’ GOTO REPEAT
1360 ’ END
1370 CLOSE #1
1380 END

6--15
E5AK

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION

J Examples of use
F Set the unit No. to “00”
· In the following examples, data is shown in individual blocks to make the examples
easier to understand. However, when actually creating programs, do not leave spaces
between frame items. Also, response are displayed without spaces between frame
items.

F Set the set point to “300.0”

· Input data
@ 00 2 01 3000
300.0
Set point
Write parameter

· Response
@ 00 2 01 00 3000 (FCS) *
Normal end

F Start running
· Input data
@ 00 3 00 0000
Run
Run/Stop
Special command

· Response
@ 00 3 00 00 0000 (FCS) *
Normal end

F Monitor process value

· Input data
@ 00 1 00 0000
Dummy data
Monitor process value
Read parameter

· Response
@ 00 1 00 00 2000 (FCS) *
Process value = 2000
Normal end

6--16
E5AK

CHAPTER 7 CALIBRATION

CHAPTER 7 7
CALIBRATION
This chapter describes procedures for each calibration operation.
Read this chapter only when the controller must be calibrated.

7.1 Structure of Parameters . . . . . . . . . . . . . . . . 7-2

7.2 Calibrating Thermocouple . . . . . . . . . . . . . . 7-4
7.3 Calibrating Platinum
Resistance Thermometer . . . . . . . . . . . . . . . 7-7
7.4 Calibrating Current Input . . . . . . . . . . . . . . 7-9
7.5 Calibrating Voltage Input . . . . . . . . . . . . . . . 7-10
7.6 Checking Indication Accuracy . . . . . . . . . . . 7-12

7--1
E5AK

CHAPTER 7 CALIBRATION

7.1 Structure of Parameters

· To calibrate the E5AK controller, select [ ] in the menu display to

select the calibration mode. [ ] is displayed.
· However, note that [ ] may not be displayed on the menu display
when, for example, the user is calibrating the E5AK controller for the
first time. If this happens, [ ] is displayed by changing the “secu-
rity” parameter (protect mode) to “0”.
· The parameters in the calibration mode are configured as follows.

Platinum resistance
Thermocouple thermometer Current input Voltage input

Thermocouple 1 Thermocouple 2 0 to 5V 1 to 5V 0 to 10V

Transfer output

Only when transfer

output function is Thermocouple 1 : K1/J1/L1/E/N/W/PLII
supported Thermocouple 2 : K2/J2/L2/R/S/B/T/U
Platinum resistance
thermometer : JPt100/Pt100
Data save

· To select the desired parameter, press the key. Parameters are dis-
played in the following order:
Calibration of inputs ® Calibration of transfer output ®
Saving of calibration data
If the E5AK controller does not support the transfer output function,
calibration of transfer output is automatically deleted from the calibra-
tion procedure as follows:
Calibration of inputs ® Saving of calibration data
· Only inputs that have been set in the “input type” parameter (setup
mode) can be calibrated. To temporarily save data for each of the calibra-
tion parameters, press the key for 1 second.
· Transfer output can be calibrated only when the communications unit
(E53-AKF) is set in the controller. To adjust data items, press the
or keys.
· The data save menu is displayed only when all calibration items have
temporarily been saved.
· After calibrating input, you must always check indication accuracy. For
details, see page 7-12.

7--2
E5AK

7.1 Structure of Parameters

F Calibration item · Parameters are displayed on the No.1 display, and the process value is
menu displayed in Hexadecimal on the No.2 display.
Calibration item · Normally, the process value changes by several digits. The process value
parameter flashes, for example, when a sensor error causes the process value to
Process value stray from the calibration target range.
· When the process value display is flashing, the process value is not saved
as data even if the key is pressed.

F Calibration save · Once the E5AK controller has been calibrated by the user, [ ] is pre-
mark ceded by the “.” mark when the calibration mode is selected.

calibration save mark

7--3
E5AK

CHAPTER 7 CALIBRATION

7.2 Calibrating Thermocouple

· Calibrate according to the type of thermocouple, thermocouple 1 group

(K1, J1, L1, E, N, W, PLII) and thermocouple 2 group (K2, J2, L2, R, S,
B, T, U).
· When calibrating, do not cover the bottom or top of the controller. Also,
do not touch the input terminals (Nos. 11 and 12) and compensating con-
ductor on the E5AK controller.

F Preparations
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15 STV
4 24 14
3 23 13 Cold junction
2 22 12 compensator
1 21 33 11 0_C/32_F

Compensating
DMM conductor

· Set the cold junction compensator to 0_C. However, make sure that
internal thermocouples are disabled (tips are open).
· In the above figure, STV refers to a standard DC current/voltage source,
and DMM refers to a precision digital multimeter.
However, note that DMM is required only when the transfer output
function is supported.
· Use the compensating conductor selected thermocouple. However, note
that when thermocouple R, S, E, B, W or PLII is used, the cold junetion
compensator and the compensating conductor can be substituted with
the cold junction compensator and the compensating conductor for
thermocouple K.

Connecting the Correct process values cannot be obtained if you touch the contact ends of the com-
Cold Junction Con- pensating conductor during calibration of a thermocouple. Accordingly, short
ductor (enable) or open (disable) the tip of the compensating conductor inside the cold junc-
tion compensator as shown in the figure below to create a contact or non-contact
state for the cold junction compensator.
Cold junction Cold junction
compensator compensator
Short
E5AK E5AK
controller 0°C/32°F controller 0°C/32°F Open

Compensating conductor Compensating conductor

7--4
E5AK

7.2 Calibrating Thermocouple

F Calibration: This example describes how to calibrate a thermocouple when the transfer
thermocouple 1 output function is supported. If the transfer output function is not sup-
ported, skips steps (7) to (10).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) First, calibrate the main input. Press the key to display [ ]
(50mV calibration display). Set STV output to 50mV. When the value
on the No.2 display has stabilized (changes of several digits max.),
press the key to temporarily save the calibration data.
(3) Press the key to display [ ] (0mV calibration display). Set
STV output to 0mV. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily save
the calibration data.
(4) Next, calibrate the cold junction compensator. Press the key to
display [ ] (310mV calibration display). Set STV output to
310mV. When the value on the No.2 display has stabilized (changes of
several digits max.), press the key to temporarily save the calibra-
tion data.
(5) Press the key to display [ ] (0mV calibration display). Set
STV output to 0mV. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily save
the calibration data.
(6) Finally, calibrate the bias compensation value. Disconnect the STV,
and enable the thermocouple of the cold junction compensator. When
carrying this out, make sure that the wiring on the STV is discon-
nected.
Make sure that the cold junction compensator is set to 0_C and press
the key. The display changes to [ ] (calibration display for the
bias compensation value). When the value on the No.2 display has sta-
bilized (changes of several digits max.), press the key to tempo-
rarily save the calibration data.
(7) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (11). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(8) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(9) Press the key. The display changes to [ ] (4mA calibration
display).
(10) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
(11) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(12) This completes calibration of the thermocouple 1 group. Press the
key to return the display to [ ].

7--5
E5AK

CHAPTER 7 CALIBRATION

F Calibration: This example describes how to calibrate a thermocouple when the transfer
thermocouple 2 output function is supported. If the transfer output function is not sup-
ported, skips steps (7) to (10).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) First, calibrate the main input. Press the key to display [ ]
(20mV calibration display). Set STV output to 20mV. When the value
on the No.2 display has stabilized (changes of several digits max.),
press the key to temporarily save the calibration data.
(3) Press the key to display [ ] (0mV calibration display). Set
STV output to 0mV. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily save
the calibration data.
(4) Next, calibrate the cold junction compensator. Press the key to
display [ ] (310mV calibration display). Set STV output to
310mV. When the value on the No.2 display has stabilized (changes of
several digits max.), press the key to temporarily save the calibra-
tion data.
(5) Press the key to display [ ] (0mV calibration display). Set
STV output to 0mV. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily save
the calibration data.
(6) Finally, calibrate the bias compensation value. Disconnect the STV,
and enable the thermocouple of the cold junction compensator. When
carrying this out, make sure that the wiring on the STV is discon-
nected.
Make sure that the cold junction compensator is set to 0_C and press
the key. The display changes to [ ] (calibration display for
the bias compensation value). When the value on the No.2 display has
stabilized (changes of several digits max.), press the key to tempo-
rarily save the calibration data.
(7) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (11). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(8) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(9) Press the key. The display changes to [ ] (4mA calibration
display).
(10) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
(11) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(12) This completes calibration of the thermocouple 2 group. Press the
key to return the display to [ ].

7--6
E5AK

7.3 Calibrating Platinum Resistance Thermometer

7.3 Calibrating Platinum Resistance Thermometer

F Preparation
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13
2 22 12 6-dial
1 21 33 11

DMM

· Use leads of the same thickness when connecting to the platinum resis-
tance thermometer.
· In the above figure, 6-dial refers to a precision resistance box, and DMM
stands for a digital multimeter. However, note that the DMM is required
only when the transfer output function is supported.
· Connect (short) the leads from terminal Nos. 11 and 12.

F Calibration This example describes how to calibrate a platinum resistance thermome-

ter when the transfer output function is supported. If the transfer output
function is not supported, skips steps (7) to (10).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) First, calibrate the main input. Press the key to display [ ]
(300W calibration display). Set the 6-dial to 300W. When the value on
the No.2 display has stabilized (changes of several digits max.), press
the key to temporarily store the calibration data.
Short terminal
Nos.11 to 13 (3) Press the key to switch [ ] (0W calibration) display. Short
terminal No. 11 to 13. When the value on the No.2 display has stabi-
lized (changes of several digits max.), press the key to temporarily
store the calibration data.
(4) Next, calibrate the B-B’ input. Change the wiring as follows.
15
Change wiring.
14
13
12 6-dial
11
Make the connection across terminals 11 and 12 and the 6-dial as
Short terminal
Nos.11 to 13
short as possible. Short terminals 11 and 13.
(5) Press the key to display [ ] (10W calibration display). Set the
Cont’d on next page 6-dial to 10W.. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily
store the calibration data.

7--7
E5AK

CHAPTER 7 CALIBRATION

From previous page (6) Press the key to display [ ] (0W calibration display, Short ter-
minal Nos. 11 to 13. When the value on the No.2 display has stabilized
(changes of several digits max.), press the key to temporarily
store the calibration data.
(7) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (11). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(8) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(9) Press the key. The display changes to [ ] (4mA calibration
display).
(10) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
(11) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(12) This completes calibration of the platinum resistance thermometer.
Press the key to return the display to [ ].

7--8
E5AK

7.4 Calibrating Current Input

7.4 Calibrating Current Input

F Preparation AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13
--
2 22 12
1 21 33 11
+

DMM STV

F Calibration · In the above figure, STV refers to a standard DC current/voltage source,

and DMM refers to a precision digital multimeter. However, note that
the DMM is required only when the transfer output function is sup-
ported.

This example describes how to calibrate a current input when the transfer
output function is supported. If the transfer output function is not sup-
ported, skips steps (4) to (7).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) Press the key. The display changes to [ ] (20mA calibration
display). Set the STV output to 20mA. When the value on the No.2 dis-
play has stabilized (changes of several digits max.), press the key
to temporarily store the calibration data.
(3) Press the key. The display changes to [ ] (0mA calibration
display). Set the STV output to 0 mA. When the value on the No.2 dis-
play has stabilized (changes of several digits max.), press the key
to temporarily store the calibration data.
(4) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (8). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(5) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(6) Press the key. The display changes to [ ] (4mA calibration
display).
(7) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
(8) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(9) This completes calibration of current input. Press the key to
return the display to [ ].

7--9
E5AK

CHAPTER 7 CALIBRATION

7.5 Calibrating Voltage Input

F Preparation
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14 +

3 23 13
2 22 12
1 21 33 11 -- STV

DMM

· In the above figure, STV refers to a standard DC current/voltage source,

and DMM refers to a precision digital multimeter. However, note that
the DMM is required only when the transfer output function is sup-
ported.

F Calibration: This example describes how to calibrate voltage input when the transfer
0 to 5 V, 1 to 5 V output function is supported. If the transfer output function is not sup-
ported, skips steps (4) to (7).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) Press the key. The display changes to [ ] (5 V calibration dis-
play). Set the STV output to 5V. When the value on the No.2 display
has stabilized (changes of several digits max.), press the key to
temporarily store the calibration data.
(3) Press the key. The display changes to [ ] (0V calibration dis-
play). Set the STV output to 0V. When the value on the No.2 display
has stabilized (changes of several digits max.), press the key to
temporarily store the calibration data.
(4) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (8). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(5) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(6) Press the key. The display changes to [ ] (4mA calibration
display).
(7) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
Cont’d on next page

7--10
E5AK

7.5 Calibrating Voltage Input

From previous page (8) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(9) This completes calibration of voltage input (0 to 5V, 1 to 5V). Press the
key to return the display to [ ].

F Calibration : This example describes how to calibrate voltage input when the transfer
output function is supported. If the transfer output function is not sup-
0 to 10V
ported, skips steps (4) to (7).
(1) When [ ] is displayed, the 30-minute timer is displayed on the
No.2 display and counts down. This timer serves as a guide for the
aging time when aging is required.
(2) Press the key. The display changes to [ ] (10V calibration
display). Set the STV output to 10V. When the value on the No.2 dis-
play has stabilized (changes of several digits max.), press the key
to temporarily store the calibration data.
(3) Press the key. The display changes to [ ] (0V calibration dis-
play). Set the STV output to 0V. When the value on the No.2 display
has stabilized (changes of several digits max.), press the key to
temporarily store the calibration data.
(4) Next, calibrate the transfer output function. If the transfer output
function is not supported, skip to step (8). Press the key. The dis-
play changes to [ ] (20mA calibration display).
(5) Set the output to 20mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “20mA”.
(6) Press the key. The display changes to [ ] (4mA calibration
display).
(7) Set the output to 4mA by the or keys while monitoring the
voltage on the digital multimeter. In the example on the left, the dis-
play indicates that the value two digits smaller than before calibra-
tion is “4mA”.
(8) Press the key until the display changes to the data save display.
Press the key. The No.2 display changes to [ ], and two
seconds later the calibration data is saved to internal memory. If you
press the key when the No.2 display reads [ ], the calibration
data is invalidated.
(9) This completes calibration of voltage input (0 to 10V). Press the
key to return the display to [ ].

7--11
E5AK

CHAPTER 7 CALIBRATION

7.6 Checking Indication Accuracy

· After calibrating input, make sure that you check indication accuracy to
make sure that the E5AK controller has been correctly calibrated.
· Operate the E5AK controller in the PV/SP monitor (level 0 mode) mode.
· Check the indication accuracy at the upper and lower limits and mid-
point.

F Thermocouple · Preparation
The following figure shows the required device connection. Make sure
that the E5AK controller and cold junction compensator are connected
by a compensating conductor for the input type that is to be used during
actual operation.
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
Cold junction
4 24 14 compensator
3 23 13
2 22 12
STV
1 21 33 11

Compensation
conductor
· Operation
Make sure that the cold junction compensator is at 0_C, and set STV out-
put to the voltage equivalent to the starting power of the check value.

F Platinum resis- · Preparation

tance thermome- The following figure shows the required device connection.
ter AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13
2 22 12 6-dial
1 21 33 11

· Operation
Set the 6-dial to the resistance equivalent to the check value.

7--12
E5AK

7.6 Checking Indication Accuracy

F Current input · Preparation

The following figure shows the required device connection.
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14
3 23 13 --
2 22 12
1 21 33 11
+

STV

· Operation
Set the STV to the current value equivalent to the check value.

F Voltage input · Preparation

The following figure shows the required device connection.
AC100-240V ~
(AC/DC24V )
10 30 31 32 20
SOURCE
9 29 19
8 28 18
7 27 17
6 26 16
5 25 15
4 24 14 +
3 23 13
2 22 12
1 -- STV
21 33 11

· Operation
Set the STV to the voltage value equivalent to the check value.

7--13
E5AK

CHAPTER 7 CALIBRATION

7--14
E5AK

CHAPTER 8 TROUBLESHOOTING

CHAPTER 8 8
TROUBLESHOOTING
This chapter describes how to find out and remedy the cause if the E5AK
does not function properly.

8.1 Initial Checks . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8.2 How to Use the Error Display . . . . . . . . . . . 8-3
8.3 How to Use Error Output . . . . . . . . . . . . . . . 8-5
8.4 Checking Operation Restrictions . . . . . . . . 8-6

8--1
E5AK

CHAPTER 8 TROUBLESHOOTING

8.1 Initial Checks

If trouble occurs, first of all check the following.

(1) Power supply
Make sure that the power supply is ON. Also, make sure that the
power supply is within the rated voltage range.
(2) Wiring
Make sure that all cables are properly connected.
(3) Communications condition
When communicating using the RS-232C, RS-422 or RS-485 commu-
nications interfaces, make sure that the baud rate and other commu-
nications condition settings on the host computer and E5AK control-
ler are matching, and are within the permissible ranges.

If there appears to be nothing wrong after checking the E5AK controller,

and the same phenomenon continues, check the controller in more detail,
for example, on the error display.

8--2
E5AK

8.2 How to Use the Error Display

8.2 How to Use the Error Display

When an error has occurred, the No.1 display alternately indicates error
codes together with the current display item.
This section describes how to check error codes on the display, and the
actions you must be taken to remedy the problem.

Input error

F Meaning Input is in error.

F Action Check the wiring of inputs, disconnections, and shorts, and check the in-
put type.

F Operation at For control output functions, output the manipulated variable matched to
error the setting of the “MV at PV error” parameter (level 2 mode). Alarm out-
put functions are activated when the upper limit is exceeded.

Memory error

F Meaning Internal memory operation is in error.

F Action First, turn the power OFF then back ON again. If the display remains the
same, the E5AK controller must be repaired. If the display is restored to
normal, then a probable cause can be external noise affecting the control
system. Check for external noise.

F Operation at Control output functions turn OFF (2mA max. at 4 to 20mA output, and
error output equivalent to 0% in case of other outputs). Alarm output functions
turn OFF.

A/D converter error

F Meaning Internal circuits are in error.

F Action First, turn the power OFF then back ON again. If the display remains the
same, the E5AK controller must be repaired. If the display is restored to
normal, then a probable cause can be external noise affecting the control
system. Check for external noise.

F Operation at Control output functions turn OFF (2mA max. at 4 to 20mA output, and
error output equivalent to 0% in case of other outputs). Alarm output functions
turn OFF.

8--3
E5AK

CHAPTER 8 TROUBLESHOOTING

Calibration data error

This error is output only during temperature input, and is displayed for
two seconds when the power is turned ON.

F Meaning Calibration data is in error.

F Action Must repair.

F Operation at Both control output functions and alarm output functions operate. How-
error ever, note that readout accuracy is not assured.

Display range over

F Meaning Though not an error, this is displayed when the process value exceeds the
display range when the control range (setting range ±10%) is larger than
the display range (-1999 to 9999).
· When less than “-1999” [ ]
· When greater than “9999” [ ]

F Operation Control continues, allowing normal operation.

Motor calibration error (Displayed on the No. 2 Display)

F Meaning Motor calibration has ended with an error.

F Action First, correctly connect the wiring for the potentiometer, open output, and
close output.
Execute the motor calibration again.

F Operation proce-
dure

F Operation at When motor calibration is executed, open output will operate and then
error close output will operate. However, as the value is incorrect, the result
turns out to be an error.

8--4
E5AK

8.3 How to Use Error Output

8.3 How to Use Error Output

The E5AK controller allows you to assign error output to terminals as out-
puts.
For details on output assignments, see 3.3 Setting Output Specifications
(page 3-6).

F LBA · LBA (Loop Break Alarm) can be used as a means for detecting loop
breaks when the control loop is not functioning normally. For details, see
page 4-15.
· LBA allows you to detect the following errors:
(1) Heater burnout
(2) Output error (contact weld, damaged transistors, etc.)
(3) Sensor error (constant input values, etc.)
· If you use the LBA function, set the loop break detection time matched
to the control characteristics in the “LBA detection time” parameter
(level 2 mode).

F Input errors · If you assign error 1 as the output, an error can be output to auxiliary
output 1 or auxiliary output 2 when input is in error. When this error
occurs, remedy by following the description for “Input error” (page 8-3).

F A/D converter · If you assign error 2 as the output, an error can be output to auxiliary
error output 1 or auxiliary output 2 when the A/D converter is in error. When
this error occurs, remedy by following the description for “A/D converter
error” (page 8-3).

F Remote SP input · If you assign error 3 as the output, an error can be output to auxiliary
error output 1 or auxiliary output 2 when the remote SP input error occurs
while the remote SP function is enabled. For details on error displays
and meanings, see Chapter 4 Applied Operation/4.4 How to Use the
Remote SP (page 4-11).
· When an error occurs, check the state of the remote SP connection. If the
lead is broken or disconnected, the remote SP scaling lower limit is dis-
played blinking on the PV/SP display or remote SP monitor display.

8--5
E5AK

CHAPTER 8 TROUBLESHOOTING

8.4 Checking Operation Restrictions

With the E5AK controller, auto-tuning or self-tuning sometimes do not

operate depending on the way functions are combined. The table below
summarizes the main operating restrictions.
If the E5AK controller is not operating properly, first check whether oper-
ating conditions violate the restrictions in this table.

Inoperable or Invalid Functions

Restriction
ST Execution AT Execution Limiter Function Other
At analog input ¢
At heating and ¢ 40%AT
cooling control
At position-pro- ¢ 40% AT Manipulated variable ON/OFF control
portional control
At ON/OFF ¢ ¢ Manipulated variable
control MV change rate
ST = ON ¢ Manipulated variable SP ramp function
MV change rate
At AT execution -- MV change rate Parameter setting
At stop ¢ ¢ Manipulated variable
MV change rate

Items marked by a “x” indicates combinations of conditions not acceptable during ST or AT execution.
Items marked by “ ---” are impossible combinations.

8--6
E5AK

APPENDIX

APPENDIX

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . A-2
ABOUT CURRENT TRANSFORMER (CT) . . . A-5
CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . A-6
SETTING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
MODEL LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
PARAMETER OPERATIONS LIST . . . . . . . . . . A-12
FUZZY SELF-TUNING . . . . . . . . . . . . . . . . . . . . . A-14
X FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17
ASCII CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . . . A-20

A--1
E5AK

APPENDIX

SPECIFICATIONS

J Ratings
AC100-240V type AC/DC24V type
Supply Voltage AC100-240V ~ , 50/60 Hz AC/DC24V , 50/60Hz
Power Consumption 16VA 12VA, 8W
Oprating Voltage Range 85% to 110% of rated supply voltage
Thermocouple : K, J, T, E, L, U, N, R, S, B, W, PLII *1, *2
Platinum resistance thermometer : JPt100, Pt100
Main Input
Voltage input : 4 to 20mA, 0 to 20mA (Input impedance 150W)
Current input : 1 to 5V, 0 to 5V, 1 to 10V (Input impedance 1MW)
CT input: E54-CT1, E54-CT3
Sub-Input Potentiometer: 100Ω to 2.5kΩ
Remote SP input: 4 to 20mA (Input impedance 150Ω)
Control Output According to output unit (see “Output Unit Ratings and Characteristics”)
Auxiliary Output SPST-NO, 3A at 250 VAC (resistive load)
Control Method Advanced PID or ON/OFF control
Setting Method Digital setting using front panel keys
Indication Method 7-segment digital display, Bar graph and LEDs
Other Functions According to option unit (see ”Option Unit Ratings and Characteristics”)
Operating : -10°C to 55°C (with no icing)/3-year warranty period: -10°C to 50°C
Ambient Temperature
Storage : -25°C to 65°C (with no icing)
Ambient Humidity 35% to 85%
*1 Thermocouple W is W/Re5-26.
*2 The following table shows the setting ranges and indication ranges for each of the inputs.

Input Setting Range Indication Range

JPt100 -199.9 to 650.0(_C) /-199.9 to 999.9(_F) -199.9 to 735.0(_C) /-199.9 to 999.9(_F)
Pt100 -199.9 to 650.0(_C) /-199.9 to 999.9(_F) -199.9 to 735.0(_C) /-199.9 to 999.9(_F)
K1 -200 to 1300(_C) /-300 to 2300(_F) -350 to 1450(_C) /-560 to 2560(_F)
K2 0.0 to 500.0(_C) /0.0 to 900.0(_F) -50.0 to 550.0(_C) /-90.0 to 990.0(_F)
J1 -100 to 850(_C) /-100 to 1500(_F) -195 to 945(_C) /-260 to 1660(_F)
J2 0.0 to 400.0(_C) /0.0 to 750.0(_F) -40.0 to 440.0(_C) /-75.0 to 825.0(_F)
T -199.9 to 400.0(_C) /-199.9 to 700.0(_F) -199.9 to 460.0(_C) /-199.9 to 790.0(_F)
E 0 to 600(_C) /0 to 1100(_F) -60 to 660(_C) /-110 to 1210(_F)
L1 -100 to 850(_C) /-100 to 1500(_F) -195 to 945(_C) /-260 to 1660(_F)
L2 0.0 to 400.0(_C) /0.0 to 750.0(_F) -40.0 to 440.0(_C) /-75.0 to 825.0(_F)
U -199.9 to 400.0(_C) /-199.9 to 700.0(_F) -199.9 to 460.0(_C) /-199.9 to 790.0(_F)
N -200 to 1300(_C) /-300 to 2300(_F) -350 to 1450(_C) /-560 to 2560(_F)
R 0 to 1700(_C) /0 to 3000(_F) -170 to 1870(_C) /-300 to 3300(_F)
S 0 to 1700(_C) /0 to 3000(_F) -170 to 1870(_C) /-300 to 3300(_F)
B 100 to 1800(_C) /300 to 3200(_F) -70 to 1970(_C) /10 to 3490(_F)
W 0 to 2300(_C) /0 to 4100(_F) -230 to 2530(_C) /-410 to 4510(_F)
PLII 0 to 1300(_C) /0 to 2300(_F) -130 to 1430(_C) /-230 to 2530(_F)
4 to 20mA One of following ranges depending on results of -10 to 110% of setting range. Note, however that
0 to 20mA scaling max. value is -1999 to 9999
-1999 to 9999
1 to 5V -199.9 to 999.9
0 to 5V -19.99 to 99.99
0 to 10V -1.999 to 9.999

A--2
E5AK

SPECIFICATIONS

J Characteristics
Thermocouple:
(±0.3% of indication value or ± 1°C, whichever greater) ± 1 digit max. (*1)
Platinum resistance thermometer:
(±0.2% of indcation value or± 0.8°C whichever greater)± 1 digit max.
Indication Accuracy
Analog input: ±0.2%± 1 digit max.
CT input: 5%FS 1 digit max.
Potentiometer: 5%FS 1 digit max.
Remote SP: 0.2%FS 1 digit max.
Hysteresis 0.01 to 99.99%FS (in units of 0.01%FS)
Proportional Band (P) 0.1 to 999.9% FS (in units of 0.1%FS)
Integral (reset) Time (I) 0 to 3999 s (in units of 1 second) (*2)

Derivative (rate) Time (D) 0 to 3999 s (in units of 1 second)

Control Period 1 to 99 s (in units of 1 second)
Manual Reset Value 0.0 to 100.0% (in units of 0.1%)
-1999 to 9999 or -199.9 to 999.9 (decimal point position dependent on input type
Alarm Setting Range
or result of scaling)
Sampling Period Temperature input: 250 ms, Analog input: 100 ms, Sub-input : 1s
Insulation Resistance 20 MW min. (at 500 VDC)
Dielectric Strength 2000 VAC, 50/60Hz for 1 min (between terminals of different polarities)

Vibration Malfunction 10 to 55 Hz, 10 m/s2 (approx.1G) for 10 min each in X, Y, and Z directions
Resistance Destruction 10 to 55 Hz, 20 m/s2 (approx.2G) for 2hrs each in X, Y, and Z directions
200 m/s2 min. (approx.20G), 3 times each in 6 directions (100 m/s2 (approx.10G)
Shock Resis- Malfunction
applied to the relay)
tance
Destruction 300 m/s2 min. (approx.30G), 3 times each in 6 directions
Weight Approx. 450 g, mounting bracket: approx. 65 g
Front panel: NEMA4 for indoor use (equivalent to IP66)
Enclosure Ratings Rear case: IEC standard IP20
Terminals: IEC standard IP00
Memory Protection Non-volatile memory (number of writings:100000 operations)
*1The indication accuracy of the K1, T, and N thermocouples at a temperature of -100°C or less is ±2°C ±1 digit maximum. The
indication accuracy of the U, L1 and L2 thermocouples at any temperature is ±2°C ±1 digit maximum.
The indication accuracy of the B thermocouple at a temperature of 400°C or less is unrestricted.
The indication accuracy of the R and S thermocouples at a temperature of 200°C or less is ±3°C ±1 digit maximum.
The indication accuracy of the W thermocouple is ±1 digit max. of whichever is the greater of ±0.3% or ±3°C of the indicated
value.
The indication accuracy of the PLII thermocouple is ±1 digit max. of whichever is the greater of ±0.3% or ±2°C of the indicated
value.
*2On a position-proportional control type, 1 to 3999.

F Heter Burnout Alarm

Max. heater current Single-phase 50 A VAC (see note 1)
Heater current value display accuracy 5%FS 1 digit max.
Heater burnout alarm setting range 0.1 to 49.9 A (in units of 0.1 A) see note 2)
Min. detection ON time 190 ms (see note 3)

Note: 1. Use the K2CU-FVVA-VGS (with gate input terminals) for the detection of three-phase heater burnout.
2. The heater burnout alarm is always OFF if the alarm is set to 0.0A and always ON if the alarm is set to 50.0A.
3. No heater burnout detection or heater current value measurement is possible if the control output (heat) is ON for less
than 190ms.

A--3
E5AK

APPENDIX

J Output Unit Ratings and Characteristics

Ratings and characteristics conform to the output unit mounted on the
controller. For details on the ratings of the output unit, see page 2---9.
The relay output unit is already mounted on the E5AK-PRR2. When
replacing the output unit, use the E53-R.

J Option Unit Ratings and Characteristics

Contact input ON: 1 kW max., OFF: 100 kW min.
Event inputs ON: residual voltage 1.5 V max., OFF: leakage current 0.1 mA
No-contact input
max.
Interface :RS-232C, RS-422 or RS-485
Transmission method :Half-duplex
Communications
Synchronization method :Start-stop synchronization (asynchronous method)
Baud rate :1.2/2.4/4.8/9.6/19.2 kbps
Transfer output 4 to 20 mA, Permissible load impedance: 600 W max. Resolution: Approx. 2600

A--4
E5AK

ABOUT CURRENT TRANSFORMER (CT)

ABOUT CURRENT TRANSFORMER (CT)

F Specifications
Item Specifications
Type E54-CT1 E54-CT3
Max.continuous current 50A 120A (*1)
Dielectric Strength AC 1000V (1min)
Vibration Resistance 50Hz, 98m/s2 [10G]
Weight Approx. 11.5g Approx. 50g
Armature (2)
Accessory -
Plug (2)
*1 The maximum continuous current of the E5AK is 50 A.

F Dimensions
E54-CT1 21 2.8
15

7.5

f5.8
25

10.5
3

40

2-f3.5
10

30

E54-CT3 30 f2.36
9

f12
40

2-M3 depth 4
15

30

A--5
E5AK

APPENDIX

CONTROL BLOCK DIAGRAM

J Standard type
Temperature Analog input
input

Digital filter Digital filter

Input shift Scaling

Set point
limiter
Input type

SP mode
LSP Process
SP ramp
value

RSP
RSP enable Control method

Control mode Control mode

ON/OFF ON/OFF control

control PID control 3-position control PID control

Heating Cooling
Process/function side side
MV change MV change
rate limiter rate limiter
Control

MV limiter MV limiter
Data

Dead band
Heating Cooling
side side

Error MV at Error
PV error

Stop MV at stop Stop

Manual Manual MV Manual

D D
DStop Manipulated
DStop Manipulated
variable at variable at
heating side cooling side

A--6
E5AK

CONTROL BLOCK DIAGRAM

J Position-proportional type
Temperature Analog input
input

Digital filter Digital filter

Input shift Scaling

Set point
limiter
Input type

SP mode
LSP Process
SP ramp value

RSP
RSP enable PID control

MV change
rate limiter

Position-
proportional
dead band
Process/function
Open side Close side

Control

Data Operation at
Error Error
PV error

Operation at
Stop Stop
stop

Manual Manual Manual

operation

Open Close
output output

A--7
E5AK

APPENDIX

SETTING LIST
Mode Parameter Name Setting Range Unit Default Remarks Setting
Security 0 to 6 None 1
Protect
[A/M] key protect ON/OFF None OFF
Manual Manual MV -5.0 to 105.0 *1 % 0.0
Set point Set point lower limit to Set point upper limit EU 0
Level 0
Run/Stop Run/Stop None RUN

AT Execute/Cancel OFF/AT-1/AT-2 None OFF During running

Set point 0 Set point lower limit to Set point upper limit EU 0 Multi-SP

Set point 1 Set point lower limit to Set point upper limit EU 0 Multi-SP

Set point 2 Set point lower limit to Set point upper limit EU 0 Multi-SP

Set point 3 Set point lower limit to Set point upper limit EU 0 Multi-SP

Alarm value 1 -1999 to 9999 EU 0

Alarm value 2 -1999 to 9999 EU 0

Alarm value 3 -1999 to 9999 EU 0

Proportional band 0.1 to 999.9 %FS 10.0

Integral time 0 to 3999 sec 233

Level 1 Derivative time 0 to 3999 sec 40

Cooling coefficient 0.01 to 99.99 None 1.00 At heating and

cooling control
Dead band -19.99 to 99.99 %FS 0.00 At heating and
cooling control
Position-proportional 0.1 to 10.0 % 2.0 At position-propor-
dead band tional control
Manual reset value 0.0 to 100.0 % 50.0

Hysteresis (heat) 0.01 to 99.99 %FS 0.10

Hysteresis (cool) 0.01 to 99.99 %FS 0.10 At heating and

cooling control
Control period (heat) 1 to 99 sec 20

Control period (cool) 1 to 99 sec 20 At heating and

cooling control
Heater burnout 0.0 to 50.0 A 0.0 Heater burnout
detection
Remote/Local RMT/LCL None LCL Communications
unit setting
SP mode RSP/LSP None LSP
SP ramp time unit M(Minutes) / H(Hours) None M

SP ramp set value 0 to 9999 EU 0

LBA detection time 0 to 9999 *1 Sec 0

MV at stop -5.0 to 105.0 *1 % 0.0

MV at PV error -5.0 to 105.0 *2 % 0.0

MV upper limit MV lower limit + 0.1 to 105.0 *3 % 105.0

Level 2 MV lower limit -5.0 to MV upper limit -0.1 % -5.0

MV change rate limit 0.0 to 100.0 %/sec 0.0

Input digital filter 0 to 9999 sec 0

Open/close hysteresis 0.1 to 20.0 % 0.8
Alarm 1 hysteresis 0.01 to 99.99 %FS 0.02

Alarm 2 hysteresis 0.01 to 99.99 %FS 0.02

Alarm 3 hysteresis 0.01 to 99.99 %FS 0.02

Input shift upper limit -199.9 to 999.9 °C/°F 0.0 Temperature input

Input shift lower limit -199.9 to 999.9 °C/°F 0.0 Temperature input

*1 During heat and cooling control, the lower limit becomes -105.0%.
During position-proportional control, the setting becomes HOLD, OPEN or CLOS.
*2 During heat and cooling control, the setting range becomes 0.0 to 105.0%.
*3 During heat and cooling control, the setting range becomes -105.0 to 0.0%.

A--8
E5AK

SETTING LIST

Mode Parameter Name Setting Range Unit Default Remarks Setting

Input type 0 to 21 None 2
Scaling upper limit Scaling lower limit +1 to 9999 *4 EU -100 Analog input
Scaling lower limit -1999 to SP setting upper limit -0.1 *4 EU 0 Analog input
Decimal point 0 to 3 None 0 Analog input
_C/_F selection _C/_F None _C Temperature input
Parameter initialize Yes/No None NO
Heat/Cool/Alarm 1/Alarm 2/Alarm 3
Control output 1 assignment None HEAT
/HBA/LBA
Heat/Cool/Alarm 1/Alarm 2/Alarm 3
Control output 2 assignment None AL-1
/HBA/LBA
Alarm 1/Alarm 2/Alarm 3/HBA/LBA/
Auxiliary output 1 assignment None AL-2
S.ERR/E333/RSER
Alarm 1/Alarm 2/Alarm 3/HBA/
Setup Auxiliary output 2 assignment None AL-3
LBA/S.ERR/E333/RSER
Output assignment
Alarm 1 type 1 to 11 None 2
needed
Output assignment
Alarm 1 open in alarm N-O/N-C None N-O
needed
Output assignment
Alarm 2 type 1 to 11 None 2
needed
Output assignment
Alarm 2 open in alarm N-O/N-C None N-O
needed
Output assignment
Alarm 3 type 1 to 11 None 2
needed
Output assignment
Alarm 3 open in alarm N-O/N-C None N-O
needed
Direct/Reverse operation OR-R/OR-D None OR-R
Set point lower limit +1 to scaling
Set point upper limit None 1300 *4
upper limit *2
Scaling lower limit to Set point upper
Set point lower limit None -200 *4
limit -1 *2
PID/ON/OFF PID / ON/OFF None PID
ST OFF/ON None OFF
ST stable range 0.1 to 999.9 °C/°F 15.0 ST=ON
Expan-
E a 0.00 to 1.00 None 0.65
sion
AT calculated gain 0.1 to 10.0 None 1.0
Standby sequence reset set-
0/1 None 0
ting method
Automatic return of display
0 to 99 Sec 0
mode
AT hysteresis 0.1 to 9.9 %FS 0.2
LBA detection width 0.0 to 999.9 %FS 0.2
*4 When temperature input is selected, the sensor range selected in the “input type” parameter (setup mode) corresponds to the scal-
ing upper and lower limit value.

A--9
E5AK

APPENDIX

Mode Parameter Name Setting Range Unit Default Remarks Setting

Multi-SP function 0 to 2 None 0

Event input assignment 1 NON/STOP/RMT/MAN/RSP None NON

Event input assignment 2 NON/STOP/RMT/MAN/RSP None NON

Event input assignment 3 NON/STOP/RMT/MAN/RSP None STOP

Event input assignment 4 NON/STOP/RMT/MAN/RSP None MAN

Communication stop bit 1/2 bits 2

Communication data length 7/8 bits 7

Communication parity None/Even/Odd None EVEN

Communication baud rate 1.2/2.4/4.8/9.6/19.2 kbps 9.6

Communication unit No. 0 to 99 None 0

Transfer output type SP/SP-M/PV/O/C-O/V-M None SP

Option
Transfer output upper limit *5 *5 *5

Transfer output lower limit *5 *5 *5

HBA latch ON/OFF None OFF

Motor calibration ON/OFF None OFF

Travel time 1 to 999 Sec 1

PV dead band 0 to 9999 EU 0

Remote SP enable ON/OFF None OFF

SP setting lower limit to SP setting
Remote SP upper limit EU 1300
upper limit
SP setting lower limit to SP setting
Remote SP lower limit EU -200
upper limit
SP tracking ON/OFF None OFF

*5 Set the transfer output type parameter according to the following table.
Transfer Output Type Transfer Output Lower Limit to Transfer Output Upper Limit
SP :Set point Set point lower limit to Set point upper limit
SP-M :Set point during SP ramp Set point lower limit to Set point upper limit
PV :Process value Scaling lower limit to scaling upper limit
O :Manipulated variable -5.0 to 105.0%
(heat)
C-O :Manipulated variable 0.0 to 105.0%
(cool)
V-M :Value opening -10.0 to 110.0%
D Default : SP
D The output ranges of the SP setting, set point or process value when temperature input is selected are the ranges supported
by the selected sensor.
D When the heating side manipulated variable or cooling side manipulated variable is selected, the transfer output lower limit in
a heating and cooling control becomes “0.0”.

A--10
E5AK

MODEL LIST

MODEL LIST

Description Type Name Specification

Base unit E5AK-AA2 AC100-240 Standard model
E5AK-AA2-500 AC100-240 Standard model with terminal cover
E5AK-AA2 AC/DC24 Standard model
E5AK-AA2-500 AC/DC24 Standard model with terminal cover
E5AK-PRR2 AC100-240 Position-proportional model
E5AK-PRR2-500 AC100-240 Position-proportional model with terminal cover
E5AK-PRR2 AC/DC24 Position-proportional model
E5AK-PRR2-500 AC/DC24 Position-proportional model with terminal cover
Option unit E53-AKB Event input
E53-AK01 Communication (RS-232C)
E53-AK02 Communication (RS-422)
E53-AK03 Communication (RS-485)
E53-AKF Transfer output
Output unit E53-R Relay
E53-S SSR
E53-Q Pulse (NPN) DC12V
E53-Q3 Pulse (NPN) DC24V
E53-Q4 Pulse (PNP) DC24V
E53-C3 Linear (4 to 20mA)
E53-C3D Linear (0 to 20mA)
E53-V34 Linear (0 to 10V)
E53-V35 Linear (0 to 5V)
Terminal cover E53-COV0809 for E5AK

A--11
E5AK

APPENDIX

PARAMETER OPERATIONS LIST

· Switching to modes other than manual or protect mode is carried out by mode selection in the menu
display.
· The figure below shows all parameters in the order that they are displayed. Some parameters are
not displayed depending on the protect mode setting and conditions of use.
Power ON
A/M
1 second min. 1 second min.

Level 0 mode Manual mode

1 second min. A/M

Level 1 mode 1 second min.

1 second min.
Level 2 mode A/M + A/M +
1 second min. 1 second min.
1 second min.
Setup mode
Protect mode
1 second min.
Expansion
mode A/M +
1 second min.
1 second min.
Option mode
Parameters in a mode can be
1 second min.
switched by the key. The param-
Calibration eter following the last parameter is the
mode top parameter.

Level 0 Level 1 Level 2

PV/SP AT Execute/Cancel Remote/Local

Remote SP monitor Set point 0 SP mode
Set point during SP ramp Set point 1 SP ramp time unit
MV monitor (heat) Set point 2 SP ramp set value
MV monitor (cool) Set point 3 LBA detection time
Valve opening monitor Alarm value 1 MV at stop
Run/Stop Alarm value 2 MV at PV error
Alarm value 3 MV upper limit
Manual mode Proportional band MV lower limit
Integral time MV change rate limit
Manual MV Derivative time Input digital filter
Cooling coefficient Open/close hysteresis
Protect mode Dead band Alarm 1 hysteresis
Position--proportional dead band Alarm 2 hysteresis
Security Manual reset value Alarm 3 hysteresis
[A/M] key protect Hysteresis (heat) Input shift upper limit
Hysteresis (cool) Input shift lower limit
Control period (heat)
Control period (cool)
Heater current monitor
Heater burnout

A--12
E5AK

PARAMETER OPERATIONS LIST

Expansion
Setup mode Option mode
mode

Input type Set point upper limit Multi-SP function

Scaling upper limit Set point lower limit Event input assignment 1
Scaling lower limit PID / ON/OFF Event input assignment 2
Decimal point ST Event input assignment 3
_C/_F selection ST stable range Event input assignment 4
Parameter initialize a Communication stop bit
Control output 1 assignment AT calculated gain Communication data length
Control output 2 assignment Standby sequence reset method Communication parity
Auxiliary output 1 assignment Automatic return of display mode Communication baud rate
Auxiliary output 2 assignment AT hysteresis Communication unit No.
Alarm 1 type LBA detection width Transfer output type
Alarm 1 open in alarm Transfer output upper limit
Alarm 2 type Transfer output lower limit
Alarm 2 open in alarm HBA latch
Alarm 3 type Motor calibration
Alarm 3 open in alarm Travel time
Direct/Reverse operation PV dead band
Remote SP enable
Remote SP upper limit
Remote SP lower limit
SP tracking

Calibration
mode

Platinum resistance Current input Voltage input

Thermocouple
thermometer

Thermocouple 1 Thermocouple 2 0 to 5V 1 to 5V 0 to 10V

Transfer
output

Only when transfer output

Thermocouple 1 : K1/J1/L1/E/N/W/PLII
function is supported
Thermocouple 2 : K2/J2/L2/R/S/B/T/U
Platinum resistance
thermometer : JPt100/Pt100
Data save

A--13
E5AK

APPENDIX

FUZZY SELF-TUNING

Fuzzy self-tuning is a function that enables the E5AK to calculate the most
suitable PID constants for the controlled object.

J Features
· The E5AK determines by itself when to perform fuzzy self-tuning.
· At the time of fuzzy self-tuning, the E5AK does not output any signal
that disturbs the temperature or output value.

J Fuzzy Self--tuning Function

The fuzzy self-tuning function has three modes.
In SRT(step response tuning) mode, the PID constants are tuned
using a step response method at the time the set point is changed.
In DT(disturbance tuning) mode, the PID constants are amended
so that the controlled temperature will be within the target range
set in advance when there is external disturbance.
In HT(hunting tuning) mode, when hunting occurs, the PID
constants are amended to suppress the hunting.
Note: Be sure to turn on the power supply to the load either before or si-
multaneously with the start of Temperature Controller operation.
Dead time will be measured from the time the Temperature Con-
troller starts operating. If a load such as a heater is turned on after
the Temperature Controller is turned on, dead time longer than the
actual value will be measured and inappropriate PID constants will
be obtained. If an extremely large amount of dead time is measured,
the control amount will be set to 0% for a short period of time before
being returned to 100%, and the constants will then be returned.
Retuning is performed only for large amounts of dead time, so be
sure to follow the precaution given above when starting operation.

F Startup SRT will start if the following conditions are satisfied simultaneously
Conditions of when the E5AK is turned on or the set point is changed.

SRT At the time the E5AK starts operation At the time set point is changed
1) The set point at the time the E5AK 1) The new set point is different from the
starts operating is different from the set point used at the time SRT was
set point used at the time SRT was executed last (see note).
last executed (see note). 2) The process value is in stable condi-
2) The process value at the time the tion before the set point is changed.
E5AK starts operating is smaller than 3) A larger set point value is set in
the set point in reverse operation and reverse operation and a smaller set
larger than the set point in normal point is set in normal operation.
operation.

Note: The last SRT-executed set point is set to 0 before shipping and when
changing from advanced PID control to advanced PID control with
fuzzy self-tuning.

A--14
E5AK

FUZZY SELF-TUNING

F PID Constant If the step control amount is applied before the maximum temperature
Refreshing slope (R) is obtained, SRT will not renew any PID constant. If the propor-
tional band obtained from the R and L values that were measured before
Conditions
the imposition had been completed is larger than the present proportional
band, the PID constants will be renewed because the measured value is in
the direction towards the suitable proportional band value, and the set
point at that time will be the SRT-executed set point.
Slope (R)
Temperature
Stable range

SP

Time

F Stable Temperature Status

If the temperature is within the stable range for a certain time, it is deemed
that the temperature is stable. This time is called stability judgement time.
Like PID constants, stability judgement time is adjusted with fuzzy self-
tuning according to the characteristics of the object to be controlled. Fuzzy
self-tuning will not be activated if the temperature is stable because the
Temperature Controller deems that temperature control is smooth.
Shorter than the stability judgement time

Stable range
Set point
Stable range

(Set to 15.0_C
before shipping)
Stability judgement time

Stable Stable

F Balanced Status
If the process value is within the stable range for 60s when there is no out-
put,it is deemed that the temperature is balanced.

A--15
E5AK

APPENDIX

F Startup Conditions of DT
(1) DT will start if the temperature that has been stable varies due to ex-
ternal disturbance and the deflection of the temperature exceeds the
stable range, and then the temperature becomes stable, provided that
the number of maximum temperature values is less than four.
(2) DT will start if the set point is changed under the condition that SRT
does not start and the temperature becomes stable, provided that the
number of maximum temperature values is less than four. If there are
four or more maximum temperature values, HT will start.
Set point change
Extreme value 2

Temperature

SP

Extreme value 1

Time

F Startup Conditions of HT
HT will be ON when there is hunting with four or more maximum temper-
ature values(extreme values) while SRT is not being executed.
Extreme value 2 Extreme value 4

Temperature

SP

Extreme Extreme
value 1 value 3

Time

Note: In specific applications where temperature varies periodically due

to disturbance, internal parameters need to be adjusted.

A--16
E5AK

X FORMAT

X FORMAT

The E5AK controller supports communications in the X format.

Some of the data, such as unit, may differ with the E5AX/EX series.
For details on commands and setting range, see Chapter 5 Parameters and
Chapter 6 Using the Communications Function.

J Format Commands are structured as follows and are paired with a response.

2B 2B 2B 4 to 8B 2B 2B
Unit Header Data Data FCS
F Command No. code code
@ * CR

2B 2B 2B 4 to 8B 2B 2B
Unit Header End Data FCS
F Response No. code code
@ * CR
· “@”
The start character. This character must be inserted before the lead-
ing byte.
· Unit No.
Specifies the “unit No.” of the E5AK. If there are two or more trans-
mission destinations, specify the desired destination using “unit
No.”
· Header code/Data code
Specifies the command type. For details on the command type, see
page A-18.
· Data
Specifies the set value or setting content. The data length varies
according to the command.
· End code
Sets the communication results. For details on the types and mean-
ings of end codes, see 6.5 How to Read Communications Error
Information (page 6-12).
· FCS (Frame Check Sequence)
Set the frame check results from the start character to the data sec-
tion. For details on the frame check, see 6.6 Program Example (page
6-14).
· “*” “CR (Carriage Return) code”
Indicates the end (terminator) of the command or response block.

A--17
E5AK

APPENDIX

J X FORMAT HEAD LIST

Header Code Data Code Command Content R/W Data Remarks
AP 01 AT cancel Write None
AS 01 AT start Write None
IC -- Undefined error - None Error response
MB 01 Remote/Local Write 4B
MA 01 RAM write mode
ME 01 Backup mode Write None
MW 01 RAM data batch save
01 Alarm value 1 read
R% 02 Alarm value 2 read
03 Alarm value 3 read
Read 4B
RB 01 Proportional band read
RN 01 Integrated time read
RV 01 Derivative time read
RC 01 Cooling coefficient read During heating and cooling
Read 4B
RD 01 Dead band read control
01 Input shift upper limit read
RI Read 4B
02 Input shift lower limit read
Upper-and lower-limit batch
RL 01 SP setting limit read Read 8B
read
RO 01 Manipulated variable read
Read 4B
RS 01 Set point read
RX 01 Process value read Read 8B with status
RW 01 Heater burnout set value read Read 4B
RZ 01 Heater current read
Read 8B with status
Rb 01 Valve opening read
01 Alarm value 1 write
W% 02 Alarm value 2 write
03 Alarm value 3 write
Write 4B
WB 01 Proportional band write
WN 01 Integrated time write
WV 01 Derivative time write
WC 01 Cooling coefficient write During heating and cooling
Write 4B
WD 01 Dead band write control
01 Input shift upper limit write
WI
02 Input shift lower limit write
Write 4B
WS 01 Set point write
WW 01 Heater burnout set value write

A--18
E5AK

X FORMAT

F RX (process value read) command status

2B 2B 2B
Unit FCS
Command
No.
@ R X 0 1 * CR

2B 2B 4B 4B 2B 2B
Unit End Process value Status FCS
Response No. code
@ R X * CR

Bit Content “1” “0”

0 Run/Stop Stop Run
1 Setting level 1 0
2 Input error ON OFF
3 A/D converter error ON OFF
4 LBA ON OFF
5 HBA ON OFF
6
7 EEPROM RAM¸EEPROM RAM=EEPROM
8 Alarm 1 ON OFF
9 Alarm 2 ON OFF
10 Alarm 3 ON OFF
11 AT AT execution OFF
12 RAM mode RAM mode Backup mode
13 Auto/Manual Manual Auto
14 SP mode Remote SP Local SP
15 Remote/Local Remote Local

A--19
E5AK

APPENDIX

ASCII CODE LIST

Hex 0 1 2 3 4 5 6 7 Upper 4 bits

Bin 0000 0001 0010 0011 0100 0101 0110 0111
0 0000 SP 0 @ P p
1 0001 ! 1 A Q a q
2 0010 ” 2 B R b r
3 0011 # 3 C S c s
4 0100 $ 4 D T d t
5 0101 % 5 E U e u
6 0110 & 6 F V f v
7 0111 ’ 7 G W g w
8 1000 ( 8 H X h x
9 1001 ) 9 I Y i y
A 1010 * : J Z j z
B 1011 + ; K [ k {
C 1100 , < L ¥ l |
D 1101 - = M ] m }
E 1110 . > N ^ n ~
F 1111 / ? O _ o DEL

Lower 4 bits

A--20
E5AK

INDEX

Symbols Auto/Manual . . . . . . . . . . . . . . . . . . . . . . . 4---10

Automatic return of display mode . . . . . 5---36
[A/M] key protect . . . . . . . . . . . . . . . . . . . . 5---4 Auxiliary output . . . . . . . . . . . . . . . . . . . . 2---10
° C/° F selection . . . . . . . . . . . . . . . . . . . . . 5---28 Auxiliary output 1 assignment . . . . . . . . 5---29
Numbers Auxiliary output 2 assignment . . . . . . . . 5---29

100%AT . . . . . . . . . . . . . . . . . . . . . . . . . . . 3---16 B
40%AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3---16 B group . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6---11
A Balance---less, Bump ---less Operation . . 3---14
Balanced Status . . . . . . . . . . . . . . . . . . . . A ---15
A group . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6---11 Bar graph . . . . . . . . . . . . . . . . . . . . . . . . . . . 1---3
A/D converter error . . . . . . . . 3---6, 8---3, 8---5 Basic Operation Flow . . . . . . . . . . . . . . . . . 3---2
A/M key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1---3 Before setup . . . . . . . . . . . . . . . . . . . . 2---3, 2---4
A/M key protect . . . . . . . . . . . . . . . . . . . . . 3---12
About Calibration . . . . . . . . . . . . . . . . . . . 1---11
C
ABOUT CURRENT Cable connections . . . . . . . . . . . . . . . . . . . . 6---3
TRANSFORMER (CT) . . . . . . . . . . . A ---5 Calibrating Current Input . . . . . . . . . . . . 7---9
About invalid parameters . . . . . . . . . . . . . 6---7 Calibrating inputs . . . . . . . . . . . . . . . . . . 1---11
About parameter display . . . . . . . . . . . . . . 5---2 Calibrating Platinum
About PID Parameters . . . . . . . . . . . . . . 3---17 Resistance Thermometer . . . . . . . . . . . 7---7
About the Communications Function . 1---10 Calibrating Thermocouple . . . . . . . . . . . . 7---4
About the Decimal Point Calibrating transfer output . . . . . . . . . . 1---11
of the Alarm Value . . . . . . . . . . . . . . . 3---11 Calibrating Voltage Input . . . . . . . . . . . . 7---10
About the displays . . . . . . . . . . . . . . . . . . . 1---3 Calibration . . . . . . . . . . . . . . . . . . . . . 7---7, 7---9
About the power blocks . . . . . . . . . . . . . . 2---10 Calibration : 0 to 10V . . . . . . . . . . . . . . . . 7---11
About the temperature unit . . . . . . . . . . . 3---4 Calibration data error . . . . . . . . . . . . . . . . 8---4
About the unit No. . . . . . . . . . . . . . . . . . . 6---12 Calibration item menu . . . . . . . . . . . . . . . 7---3
Adjusting Control Operation . . . . . . . . . 3---14 Calibration Mode . . . . . . . . . 1---8, 1---9, 5---46
Alarm 1 hysteresis . . . . . . . . . . . . . . . . . . 5---24 Calibration save mark . . . . . . . . . . . . . . . . 7---3
Alarm 1 open in alarm . . . . . . . . . . . . . . . 5---31 Calibration: 0 to 5 V, 1 to 5 V . . . . . . . . . 7---10
Alarm 1 type . . . . . . . . . . . . . . . . . . . . . . . 5---30 Calibration: thermocouple 1 . . . . . . . . . . . 7---5
Alarm 2 hysteresis . . . . . . . . . . . . . . . . . . 5---24 Calibration: thermocouple 2 . . . . . . . . . . . 7---6
Alarm 2 open in alarm . . . . . . . . . . . . . . . 5---31 Changing the set point . . . . . . . . . . . . . . . 3---14
Alarm 2 type . . . . . . . . . . . . . . . . . . . . . . . 5---30 Characteristics . . . . . . . . . . . . . . . . . . . . . A ---3
Alarm 3 hysteresis . . . . . . . . . . . . . . . . . . 5---24 Checking Indication Accuracy . . . . . . . . 7---12
Checking Operation Restrictions . . . . . . 8---6
Alarm 3 open in alarm . . . . . . . . . . . . . . . 5---31
Close in alarm/open in alarm . . . . . . . . . 3---10
Alarm 3 type . . . . . . . . . . . . . . . . . . . . . . . 5---30
Command . . . . . . . . . . . . . . . . . . . . . . . . . A ---17
Alarm hysteresis . . . . . . . . . . . . . . . . . . . . 3---10
Command Configuration . . . . . . . . . . . . . . 6---5
Alarm type . . . . . . . . . . . . . . . . . . . . . . . . . . 3---9
Command List . . . . . . . . . . . . . . . . . . . . . . 6---10
Alarm value . . . . . . . . . . . . . . . . . . . . . . . . . 3---9
Commands and Responses . . . . . . . . . . . . 6---6
Alarm value 1 . . . . . . . . . . . . . . . . . . . . . . 5---12
Communication baud rate . . . . . . . . . . . 5---40
Alarm value 2 . . . . . . . . . . . . . . . . . . . . . . 5---12
Communication data length . . . . . . . . . . 5---40
Alarm value 3 . . . . . . . . . . . . . . . . . . . . . . 5---12
Communication parity . . . . . . . . . . . . . . . 5---40
Alfa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5---34
Communication stop bit . . . . . . . . . . . . . 5---40
ASCII CODE LIST . . . . . . . . . . . . . . . . . A ---20 Communication unit No. . . . . . . . . . . . . . 5---40
Assignment example . . . . . . . . . . . . . . . . . 4---9 Communications . . . . . . . . . . . . . . . . . . . . 2---11
AT calculated gain . . . . . . . . . . . . . . . . . . 5---35 Communications parameters . . . . . . . . . . 6---4
AT Execute/Cancel . . . . . . . . . . . . . . . . . . 5---11 Conditions when running a program . . 6---14
AT hysteresis . . . . . . . . . . . . . . . . . . . . . . . 5---36 Connecting the Cold
Auto ---tuning (A.T.) . . . . . . . . . . . . . . . . . 3---16 Junction Conductor . . . . . . . . . . . . . . . 7---4
Auto ---turning key . . . . . . . . . . . . . . . . . . . 1---3 CONTROL BLOCK DIAGRAM . . . . . . . A ---6
E5AK

INDEX

Control output . . . . . . . . . . . . . . . . . . . . . . . 2---9 How to calculate the

Control output 1 assignment . . . . . . . . . 5---28 heater burnout set value . . . . . . . . . . 4---14
Control output 2 assignment . . . . . . . . . 5---28 How to Read Communications
Error Information . . . . . . . . . . . . . . . . 6---12
Control period . . . . . . . . . . . . . . . . . . . . . . . 3---7
How to Use Error Output . . . . . . . . . . . . . 8---5
Control period (cool) . . . . . . . . . . . . . . . . 5---16
How to Use Event Input . . . . . . . . . . . . . . 4---8
Control period (heat) . . . . . . . . . . . . . . . . 5---16
How to use keys . . . . . . . . . . . . . . . . . . . . . . 1---3
Convention Used in this Chapter . . . . . . 3---2
How to use programs . . . . . . . . . . . . . . . . 6---14
Conventions Used in this Chapter . . . . . 5---2
How to Use the Error Display . . . . . . . . . 8---3
Cooling coefficient . . . . . . . . . . . . . 4---2, 5---13
How to Use the
CT input/Potentiometer . . . . . . . . 1---4, 2---10 Heater Burnout Alarm . . . . . . . . . . . . 4---13
Current input . . . . . . . . . . . . . . . . . 1---4, 7---13 How to Use the Remote SP . . . . . . . . . . . 4---11
D How to Use Transfer Output . . . . . . . . . 4---17
Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . 4---4
Dead band . . . . . . . . . . . . . . . . . . . . . 4---2, 5---14
Hysteresis (cool) . . . . . . . . . . . . . . . . . . . . 5---15
Decimal point . . . . . . . . . . . . . . . . . . . . . . 5---27
Hysteresis (heat) . . . . . . . . . . . . . . . . . . . . 5---15
Derivative time . . . . . . . . . . . . . . . . . . . . . 5---13
Determining the LBA detection time . . 4---16 I
Dimensions . . . . . . . . . . . . . . . . . . . . 2---5, A ---5 Initial Checks . . . . . . . . . . . . . . . . . . . . . . . . 8---2
Direct/Reverse operation . . . . . . . . 3---7, 5---31 Input and Output . . . . . . . . . . . . . . . . . . . . 1---4
Display range over . . . . . . . . . . . . . . . . . . . 8---4 Input digital filter . . . . . . . . . . . . . . . . . . . 5---23
Down key . . . . . . . . . . . . . . . . . . . . . . . . . . . 1---3 Input error . . . . . . . . . . . . . . . . . . . . . 3---6, 8---3
Draw---out . . . . . . . . . . . . . . . . . . . . . . . . . . . 2---2 Input errors . . . . . . . . . . . . . . . . . . . . . . . . . 8---5
E Input shift . . . . . . . . . . . . . . . . . . . . . . . . . . 3---4
Input shift lower limit . . . . . . . . . . . . . . . 5---24
End code . . . . . . . . . . . . . . . . . . . . . . . . . . . 6---12
Input shift upper limit . . . . . . . . . . . . . . . 5---24
Event input . . . . . . . . . . . . . . . . . . . 1---5, 2---11
Input type . . . . . . . . . . . . . . . . . . . . . 3---4, 5---26
Event input assignment 1 . . . . . . . . . . . . 5---39
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 2---5
Event input assignment 2 . . . . . . . . . . . . 5---39
Integral time . . . . . . . . . . . . . . . . . . . . . . . 5---13
Event input assignment 3 . . . . . . . . . . . . 5---39
Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6---2
Event input assignment 4 . . . . . . . . . . . . 5---39
Issuing special commands . . . . . . . . . . . . 6---10
Event input assignments . . . . . . . . . . . . . . 4---8
Examples of use . . . . . . . . . . . . . . . 4---14, 6---16 L
Expansion Mode . . . . . . . . . . 1---7, 1---9, 5---32 LBA . . . . . . . . . . . . . . . . . . . . . . . . . . 4---15, 8---5
F LBA detection example . . . . . . . . . . . . . . 4---15
LBA detection time . . . . . . . . . . . . 4---15, 5---21
Features . . . . . . . . . . . . . . . . . . . . . . . . . . A ---14 LBA detection width . . . . . . . . . . 4---15, 5---36
Fixing Screw for Front Panel . . . . . . . . . . 2---2 Level 0 Mode . . . . . . . . . . . . . . 1---7, 1---8, 5---6
Fixing settings . . . . . . . . . . . . . . . . . . . . . . . 1---9 Level 1 Mode . . . . . . . . . . . . . 1---7, 1---8, 5---10
Format . . . . . . . . . . . . . . . . . . . . . . . . . . . A ---17 Level 2 Mode . . . . . . . . . . . . . 1---7, 1---8, 5---18
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . 1---2 Limiter operation conditions . . . . . . . . . . 4---6
FUZZY SELF ---TUNING . . . . . . . . . . . A ---14
Fuzzy Self---tuning Function . . . . . . . . A ---14
M
H Main parts . . . . . . . . . . . . . . . . . . . . . . . . . . 1---2
Manipulated variable at stop . . . . 3---13, 4---2
HBA latch . . . . . . . . . . . . . . . . . . . . . . . . . . 5---42 Manipulated variable at
HBA latch/release . . . . . . . . . . . . . . . . . . . 4---13 stop/PV error . . . . . . . . . . . . . . . . . . . . . 4---3
Heater burnout . . . . . . . . . . . . . . . . . . . . . 5---17 Manipulated variable restrictions . . . . . . 4---5
Heater burnout detection . . . . . . . . . . . . 4---13 Manual Mode . . . . . . . . . . . . . . 1---7, 1---9, 5---5
Heater current monitor . . . . . . . . . . . . . . 5---17 Manual MV . . . . . . . . . . . . . . . . . . . . . . . . . 5---5
Heating and cooling control . . . . . . . . . . . 4---2 Manual operation . . . . . . . . . . . . . . . . . . . 3---14
Heter Burnout Alarm . . . . . . . . . . . . . . . A ---3 Manual reset value . . . . . . . . . . . . . . . . . . 5---15
E5AK

INDEX

Memory error . . . . . . . . . . . . . . . . . . . . . . . 8---3 Platinum resistance thermometer . . . . 7---12

Menu display . . . . . . . . . . . . . . . . . . . . . . . . 1---8 Position ---proportional control . . . . . . . . 4---3
MODEL LIST . . . . . . . . . . . . . . . . . . . . . A ---11 Position ---proportional dead band . . . . . 5---14
Monitor process value . . . . . . . . . . . . . . . 6---16 Position ---proportional
Motor Calibration . . . . . . . . . . . . . . . . . . . 5---42 type . . . . . . . . . . . . . . . . . . 3---7, 3---15, A ---7
Motor calibration error . . . . . . . . . . . . . . . 8---4 Power supply . . . . . . . . . . . . . . . . . . . . . . . . 2---8
Precautions when wiring . . . . . . . . . . . . . 2---8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 2---6
Preparation . . . . . . . . . . . . . . 7---7, 7---9, 7---10
Multi ---SP . . . . . . . . . . . . . . . . . . . . . . . . . . . 4---9
Preparations . . . . . . . . . . . . . . . . . . . . . . . . 7---4
Multi ---SP function . . . . . . . . . . . . . . . . . . 5---38
Preparing for Communications . . . . . . . . 6---3
MV at PV error . . . . . . . . . . . . . . . . . . . . . 5---21
Procedure . . . . . . . . . . . . . . . . 2---3, 2---4, 6---14
MV at stop . . . . . . . . . . . . . . . . . . . . . . . . . 5---21
Program Example . . . . . . . . . . . . . . . . . . . 6---14
MV change rate limit . . . . . . . . . . . . . . . . 5---22
Program list . . . . . . . . . . . . . . . . . . . . . . . . 6---15
MV change rate limiter . . . . . . . . . . . . . . . 4---5
Proportional band . . . . . . . . . . . . . . . . . . 5---13
MV limiter . . . . . . . . . . . . . . . . . . . . . . . . . . 4---5
Protect Mode . . . . . . . . 1---7, 1---9, 3---12, 5---3
MV lower limit . . . . . . . . . . . . . . . . . . . . . 5---22 PV dead band . . . . . . . . . . . . . . . . . . . . . . . 5---43
MV monitor (cool) . . . . . . . . . . . . . . . . . . . 5---8 PV/SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5---6
MV monitor (heat) . . . . . . . . . . . . . . . . . . . 5---8
MV upper limit . . . . . . . . . . . . . . . . . . . . . 5---22
R
Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . A ---2
N
Reading parameters . . . . . . . . . . . . . . . . . . 6---6
Names of parts . . . . . . . . . . . . . . . . . . . . . . 1---2 Reading/writing parameters . . . . . . . . . . . 6---6
No.1 display . . . . . . . . . . . . . . . . . . . . . . . . . 1---3 Registering calibration data . . . . . . . . . . 1---11
No.2 display . . . . . . . . . . . . . . . . . . . . . . . . . 1---3 Relationship with set point limiter . . . . 4---11
O Remote SP enable . . . . . . . . . . . . . . . . . . . 5---44
Remote SP input . . . . . . . . . . . . . . . 1---4, 2---10
ON/OFF control . . . . . . . . . . . . . . . . . . . . . 4---4 Remote SP input error . . . . . . . . . . . . . . . 8---5
Open/close hysteresis . . . . . . . . . . . . . . . . 5---23 Remote SP lower limit . . . . . . . . . . . . . . . 5---44
Operating Condition Restrictions . . . . . . 4---5 Remote SP monitor . . . . . . . . . . . . 4---12, 5---7
Operating conditions . . . . . . . . . . 4---12, 4---13 Remote SP upper limit . . . . . . . . . . . . . . 5---44
Operation at start . . . . . . . . . . . . . . . . . . . . 4---7 Remote/Local . . . . . . . . . . . . . . . . . 4---10, 5---19
Operation indicators . . . . . . . . . . . . . . . . . 1---3 Response . . . . . . . . . . . . . . . . . . . . . . . . . . A ---17
Option Mode . . . . . . . . . . . . . 1---7, 1---9, 5---37 Restrictions during SP ramp . . . . . . . . . . 4---7
Option Unit Ratings RS---232C . . . . . . . . . . . . . . . . . . . . . 1---10, 6---3
and Characteristics . . . . . . . . . . . . . . . A ---4 RS---422 . . . . . . . . . . . . . . . . . . . . . . . 1---10, 6---3
Other event input functions . . . . . . . . . . 4---10 RS---485 . . . . . . . . . . . . . . . . . . . . . . . 1---10, 6---4
Other functions . . . . . . . . . . . . . . . . . . . . . . 4---3 RSP input error . . . . . . . . . . . . . . . . . . . . . 3---6
Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6---2 Run/Stop . . . . . . . . . . . . . . . . . . . . . . 4---10, 5---9
Outline of the RX (process value read)
Communications Function . . . . . . . . . 6---2 command status . . . . . . . . . . . . . . . . . A ---19
Output assignments . . . . . . . . . . . . . 1---5, 3---6
S
Output Unit
Ratings and Characteristics . . . . . . . A ---4 Scaling . . . . . . . . . . . . . . . . . . . . . . . . 3---4, 4---11
P Scaling lower limit . . . . . . . . . . . . . . . . . . 5---27
Scaling upper limit . . . . . . . . . . . . . . . . . . 5---27
Panel cutout . . . . . . . . . . . . . . . . . . . . . . . . . 2---5 Security . . . . . . . . . . . . . . . . . . . . . . . 3---12, 5---3
Parameter initialize . . . . . . . . . . . . . . . . . 5---27 Selecting modes . . . . . . . . . . . . . . . . . . . . . . 1---8
PARAMETER OPERATIONS LIST . . A ---12 Selecting parameters . . . . . . . . . . . . . . . . . 1---9
Parameter types . . . . . . . . . . . . . . . . . . . . . 1---7 Selecting the Control Method . . . . . . . . . . 4---2
Parameters and Menus . . . . . . . . . . . . . . . 1---7 Sensor input . . . . . . . . . . . . . . . . . . . . . . . . . 2---9
PID / ON/OFF . . . . . . . . . . . . . . . . . . . . . . 5---33 Set point 0 . . . . . . . . . . . . . . . . . . . . . . . . . 5---11
PID Constant Refreshing Conditions . A ---15 Set point 1 . . . . . . . . . . . . . . . . . . . . . . . . . 5---11
E5AK

INDEX

Set point 2 . . . . . . . . . . . . . . . . . . . . . . . . . 5---11 Startup Conditions of DT . . . . . . . . . . . A ---16

Set point 3 . . . . . . . . . . . . . . . . . . . . . . . . . 5---11 Startup Conditions of HT . . . . . . . . . . . A ---16
Set point during SP ramp . . . . . . . . . . . . . 5---8 Startup Conditions of SRT . . . . . . . . . . A ---14
Set point limiter . . . . . . . . . . . . . . . . . . . . . 4---6 Structure of Parameters . . . . . . . . . . . . . . 7---2
Set point lower limit . . . . . . . . . . . . . . . . 5---33 Summary of alarm operations . . . . . . . . 3---10
Set point upper limit . . . . . . . . . . . . . . . . 5---33 Switching with Manual operation . . . . . . 4---2
Set the set point to “300.0” . . . . . . . . . . . 6---16
T
Set the unit No. to “00” . . . . . . . . . . . . . . 6---16
Setting Alarm Type . . . . . . . . . . . . . . . . . . 3---9 Temperature input . . . . . . . . . . . . . . . . . . . 1---4
Setting Input Specifications . . . . . . . . . . . 3---4 Terminal arrangement . . . . . . . . . . . . . . . 2---8
SETTING LIST . . . . . . . . . . . . . . . . . . . . A ---8 The meaning of
icons used in this chapter . . . . . . . . . . 5---2
Setting Output Specifications . . . . . . . . . 3---6
Setting the Thermocouple . . . . . . . . . . . . . . . . . . . . . . 7---12
communications specifications . . . . . . 6---4 Transfer output . . . . . . . . . . . . . . . . 1---6, 2---11
Setting the LBA detection time . . . . . . . 4---16 Transfer output lower limit . . . . . . . . . . 5---41
Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . 2---2 Transfer output scaling . . . . . . . . . . . . . . 4---17
Setting up the option unit . . . . . . . . . . . . . 2---4 Transfer output type . . . . . . . . . . 4---17, 5---41
Setting up the output unit . . . . . . . . . . . . 2---3 Transfer output upper limit . . . . . . . . . . 5---41
Setting up the terminal covers . . . . . . . . . 2---7 Transfer procedure . . . . . . . . . . . . . . . . . . . 6---2
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3---3 Travel Time . . . . . . . . . . . . . . . . . . . 4---3, 5---43
Setup Mode . . . . . . . . . . . . . . 1---7, 1---9, 5---25 U
SP mode . . . . . . . . . . . . . . . 4---10, 4---11, 5---19
SP ramp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4---6 Undefined error . . . . . . . . . . . . . . . . . . . . 6---13
SP ramp set value . . . . . . . . . . . . . . . . . . . 5---20 Up key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1---3
SP ramp time unit . . . . . . . . . . . . . . . . . . 5---20 Using Event Input . . . . . . . . . . . . . . . . . . 3---13
SP tracking . . . . . . . . . . . . . . . . . . . . . . . . 4---12 V
SP tracking enable . . . . . . . . . . . . . . . . . . 5---45
Valve opening monitor . . . . . . . . . . . 4---3, 5---9
SPECIFICATIONS . . . . . . . . . . . . . . . . . . A ---2
Voltage input . . . . . . . . . . . . . . . . . . 1---4, 7---13
Specifications . . . . . . . . . . . . . . . . . . . . . . . A ---5
ST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5---34 W
ST stable range . . . . . . . . . . . . . . . . . . . . . 5---34 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2---8
Stable Temperature Status . . . . . . . . . . A ---15 Wiring Terminals . . . . . . . . . . . . . . . . . . . . 2---8
Standard type . . . . . . . . . . . . 3---6, 3---14, A ---6 Writing parameters . . . . . . . . . . . . . . . . . . 6---6
Standby sequence . . . . . . . . . . . . . . . . . . . 3---10
Standby sequence reset method . . . . . . . 5---35
X
Start running . . . . . . . . . . . . . . . . . . . . . . . 6---16 X FORMAT . . . . . . . . . . . . . . . . . . . . . . . A ---17
Starting and Stopping Operation . . . . . 3---13 X FORMAT HEAD LIST . . . . . . . . . . . A ---18
E5AK

Revision History

A manual revision code appears as a suffix to the catalog number on the front cover of the manual.

Cat. No. H083-E1-02A

Revision code

The following table outlines the changes made to the manual during each revision. Page numbers refer
to previous version.
Revision code Date Revised content
1 July 1996 Original production
Page 1--7: Modified the diagram of mode.
Page 2--6: Modified the power specifications in “Terminal arrange-
ment”.
2 April 1997 Page V: Changed “100 to 240 VAC” to AC100--240V ~or AC/DC24V
Page 1--6: Modified the item of “Model” on the table.
Page 2--8: Modified the diagram in “Terminal arrangement”.
Changed the Power specifications in “Power supply”.
Page 3--3: Modified the diagram in “Setup”.
Page 3--8: Added “run/stop”= “run” to Setting Example.
Page 5--8: Added “Model” and “Power specifications” to MV monitor.
Page 5--9: Added “Model” and “Power specifications” to Valve opening mon-
itor.
Page 5--13: Added “Model” and “Power specifications” to Cooling coefficient.
Page 5--14: Added “Model” and “Power specifications” to Dead band and
Position--proportional dead band.
Page 5--15: Added “Model” and “Power specifications” to Manual reset value
and Hysteresis.
Page 5--16: Added “Model” and “Power specifications” to Control period.
Page 5--17: Added “Model” and “Power specifications” to Heater current
monitor and Heater burnout.
Page 5--23: Added “Model” and “Power specifications” to Open/close hyster-
esis.
Page 5--28: Added “Model” and “Power specifications” to Control output as-
signment.
Page 5--33: Added “Model” and “Power specifications” to PID/ON/OFF.
Page 5--42: Added “Model” and “Power specifications” to HBA latch.
Added “Model” and “Power specifications” to Motor Calibration.
Page 5--43: Added “Model” and “Power specifications” to Travel Time.
Added “Model” and “Power specifications” to PV dead band.
Page 6--3: Modified the diagram in “RS--232C”.
Page 7--4: Modified the diagram in “Preparations”.
Page 7--7: Modified the diagram in “Preparation”.
Page 7--9: Modified the diagram in “Preparation”.
Page 7--10: Modified the diagram in “Preparation”.
Page 7--12: Modified the diagram in “Thermocouple” and “Platinum resis-
tance thermometer”.
Page 7--13: Modified the diagram in “Current input” and “Voltage input”.
Page 8--4: Added “Motor calibration error”.
Page A--2: Modified “Ratings specifications”.
Page A--11: Changed “Type Name” and “Specification” in “Base unit”.
Page A--14: Deleted 2) of “At the time the E5AK starts operation” in “Startup
Conditions of SRT”.
Deleted 2) of “At the time set point is changed”.
Page A--15: Deleted “Imposition Completion Condition of Step Control
Amount”.
Modified the diagram in “PID Constant Refreshing Conditions”.
02A December 2003 Page 2--9: Modified the diagram in “Control output”.
Page 4--8: Changed the title from ”Input assignments” to ”Event input as-
signments and deleted the flowchart below.
Page 4--9: Modified the table contents for “Event input” and added a note
below the table.
Page 5--3: Modified the tabel.
Page A--8: Changed the unit from “%” to “%FS” for Alram 1 hysteresis,
Alarm 2 hysteresis, and Alarm 3 hysteresis.