Omron E5EK PROGRAMMABLE TYPE, E5EK-T, E5EK User Manual

User's Manual

Cat. No. H089-E1-02

Digital Controller

(Programmable Type)

Preface

The E5EK-T is a high-performance programmable digital controller. The E5EK-T
allows the user to carry out the following:

• Set program patterns to each step by time or ramp rise rate

• Execute advance, hold and reset step operations

• Execute continuous operation of all patterns and repeated operation of same pat-

terns

• Check the start of each step or program end time by signals.

• Count time from the beginning of each step (time signal)

• Select from many types of temperature and analog input (multi-input)

• Support position-proportional control (position-proportional type controllers only)

• Select output functions such as control output or alarm output (output assign-

ment)

• Use the HBA (heater burnout alarm) function (standard type controllers only)

• Monitor the control loop by LBA (Loop Break Alarm)

• Use the communications function

• Calibrate input or transfer output

• The E5EK-T also features a watertight construction (NEMA4: equivalent to

IP66).

This User’s Manual describes how to use the E5EK-T.
Before using your E5EK-T thoroughly read and understand this manual in order to
ensure correct use.
Also, store this manual in a safe place so that it can be retrieved whenever neces­sary.

PRECAUTIONS IN USING THE PRODUCT

When the product is used under the circumstances or environment below, ensure
adherence to limitations of the ratings and functions. Also, take countermeasures
for safety precautions such as fail-safe installations.

(1) Use under circumstances or environments which are not described in this user’s manual.
(2) Use for nuclear power control, railway, air craft, vehicle, incinerator, medical equipment, enter-

tainment equipment, safety device, etc.

(3) Use for applications where death or serious property damage is possible and extensive safety

precautions are required.

About this manual

(1) All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or trans-

mitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, with­out the prior written permission of OMRON.

(2) Moreover, because OMRON is constantly striving to improve its high-quality products, the information in

this manual is subject to change without notice.

(3) Every precaution has been taken in the preparation of this manual. Nevertheless, if you find any errors or

omissions, please contact the branch of OMRON or sales office listed at the end of this manual, and inform
them of the catalog No. on the front cover.

I

Conventions Used in This Manual

JMeanings of Abbreviations

Sometimes the following abbreviations are used in parameter names, figures and in text ex­planations. These abbreviations mean the following:

Symbol Term

PV Process value

SP (Present) set point *1

LBA Loop break alarm

HB Heater burnout

AT Auto-tuning

EU Engineering unit *2

*1 In program pattern diagrams, the present SP is indicated.

*2 _C, m, g and other units are indicated for scaled data. However, “EU” is used as the mini -

mum unit for the data. For example, for “50.02 (m)”, 1EU is taken as the minimum unit

0.01 (m).

JHow to Read Display Symbols

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

ABCDEF GHI J KL M

NOPQRST UVWXYZ

J“Reference” mark

This mark indicates that extra, useful information follows, such as supplementary explana­tions and how to apply functions.

II

JHow This Manual is Organized

Purpose Title Description

D Learning about the gener-

al features of the E5EK-T

Chapter 1 INTRODUC­TION

This chapter describes the fea­tures of the E5EK-T, n ames of
parts, and typical functions.

D Setting up

D Basic E5EK-T operations

D Applied E5EK-T opera-

tions

D Using a Position-propor-

tional type controller

D Communications with a

host computer

Chapter 2 PREPARA­TIONS

Chapter 3 BASIC OPERA­TION
Chapter 5 PARAMETERS

Chapter 4 APPLIED OP­ERATION
Chapter 5 PARAMETERS

Chapter 4 APPLIED OP­ERATION
/4.1 Selecting the Control
Method

Chapter 6 USING THE
COMMUNICATIONS
FUNCTION

This chapter describes the op­erations that you must carry
out (e.g. installation, wiring and
switch settings) before you can
use the E5EK-T.

These chapters describe using
basic control examples how to
use the front panel keys and
how to view the display when
setting the parameters of the
major functions for the E5EK-T.

These chapters describes the
important functions of the
E5EK-T an d how to use the pa­rameters for making full use of
the E5EK-T.

This chapter describes how to
use the functions related specifi­cally to position-proportional
type controllers.

This chapter mai nly describes
how to use the communications
commands, and gives program
examples.

D Calibration

D Troubleshooting

Chapter 7 CALIBRATION This chapter describes how the

user should calibrate the E5EK­T.

Chapter 8 TROUBLE­SHOOTING

This chapter describes what to
do if any problems o ccur.

III

PRECAUTIONS ON SAFETY

F Marks For Ensuring Safe Use and Their Meanings

This manual uses the following marks to indicate precautions for ensuring that the
E5EK-T is used safely.
The precautions indicated below describe important information regarding safety.
Be sure to follow the instructions described in these precautions.

WARNING

Incorrect handling may cause death or injury.

WARNING

Do not touch the terminals while the power is
ON.
This may cause an electric shock.

IV

NOTICE

Be sure to observe these precautions to ensure safe use.

F Do not use the product in places where explosive or flammable gases may be present.

F Never disassemble, repair or modify the product.

F Tighten the terminal screws properly.

F Use the specified size of solderless terminals for wiring.

F Use the product within the rated supply voltage.

F Use the product within the rated load.

F The life expectancy of the output relay varies considerably according to its switching capacity

and operating conditions. Be sure to use the output relay within its rated load and electrical life
expectancy. If the output relay is used beyond its life expectancy, its contacts may become fused or
burned.

F If you remove the controller from its case, never touch nor apply shock to the electronic parts

inside.

F Do not cover the E5EK-T. (Ensure sufficient space around the controller to allow heat radiation.)

F Do not use the controller in the following places:

• Places subject to icing, condensation, dust, corrosive gas (especially sulfide gas or ammonia gas).

• Places subject vibration and large shocks.

• Places subject to splashing liquid or oil atmosphere.

• Places subject to intense temperature changes.

• Places subject to heat radiation from a furnace.

F Be sure to wire properly with correct polarity of terminals.

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/output lines.

• Avoid parallel or common wiring with high voltage sources and power lines carrying large cur-

rents.

• Using separating pipes, ducts, and shielded line is also useful in protecting the controller, and its
lines from inductive noise.

F Cleaning: Do not use paint thinner or organic solvents. Use standard grade alcohol to clean the

product.

F Use a voltage (100 to 240 VAC at 50 to 60 Hz). At power ON, the prescribed voltage level must be

attained within two seconds.

F Allow as much space as possible between the controller and devices that generate a powerful high

frequency (high-frequency welders, high-frequency sewing machines, etc.) or surge. These devices
may cause malfunctions.

F If there is a large power-generating peripheral device and any of its lines near the controller, at-

tach 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 noise.

F When mounting a noise filter on the power supply to the controller, be sure to first check the fil-

ter’s voltage and current capacity, and then mount the filter as close as possible to the controller.

V

F Use within the following temperature and humidity ranges:

• Temperature: -10_Cto55_C, humidity: 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 to un ­der 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 within the following temperature and humidity ranges:

• Temperature: -25_Cto65_C, humidity: 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

deteriorate 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.

VI

Table of Contents

Preface I......................................

Conventions Used in This Manual II...............

Precautions on Safety IV.........................

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

This chapter introduces the names of parts on the E5EK-T and their functions.
For details on how to use the controller and parameter settings, see Chapter 2
onwards.

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

1.2 Input and Output 1--5.........................................

1.3 Program 1--8................................................

1.4 Parameters and Menus 1--9...................................

1.5 About the Communications Function 1--12.......................

1.6 About Calibration 1--13........................................

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

This chapter describes the operations (e.g. setup, installation and wiring) you
should carry out before turning the E5EK-T ON.

2.1 Setup 2--2..................................................

2.2 Installation 2--5..............................................

2.3 Wiring Terminals 2--8.........................................

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

This chapter describes actual examples for understanding the basic operation of
the E5EK-T

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

3.2 Setting Input Specifications 3--4...............................

3.3 Setting Output Specifications 3--7..............................

3.4 Setting Alarm Type 3--10.......................................

3.5 Setting Patterns 3--14.........................................

3.6 Protect Mode 3--19............................................

3.7 Starting and Stopping Operation 3--21...........................

3.8 Adjusting Control Operation 3--22...............................

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

This chapter describes each of the parameters required for making full use of the
features of the E5EK-T.
Read this chapter while referring to the parameter descriptions in chapter 5

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

4.2 Operating Condition Restrictions 4--7...........................

4.3 Ramp Rise Rate Setup Program 4--9...........................

4.4 Program Operation 4--13......................................

4.5 Wait Operation 4--16..........................................

4.6 Program output 4--17..........................................

4.7 Setting Running Conditions 4--19...............................

4.8 How to Use Event Input 4--21..................................

4.9 How to Use the Heater Burnout Alarm 4--23......................

4.10 LBA 4--26....................................................

4.11 How to Use Transfer Output 4--28...............................

CHAPTER 5 PARAMETERS 5--1.............................

This chapter describes the parameters of the E5EK-T.
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................................................

Program Mode 5--11...............................................

Level 1 Mode 5--17................................................

Level 2 Mode 5--24................................................

Setup Mode 5--30.................................................

Expansion Mode 5--38.............................................

Option Mode 5--46.................................................

Calibration Mode 5--52.............................................

CHAPTER 6 USING THE COMMUNICATIONS FUNCTION 6--1..

This chapter mainly describes communications with a host computer and com­munications commands

6.1 Outline of the Communications Function 6--2....................

6.2 Preparing for Communications 6--3............................

6.3 Command Structure 6--5......................................

6.4 Commands and Responses 6--7...............................

6.5 How to Read Communications Error Information 6--15.............

6.6 Program Example 6--17.......................................

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 Parameter Structure 7--2.....................................

7.2 Calibrating Thermocouples 7--4................................

7.3 Calibrating Platinum Resistance Thermometers 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 E5EK-T does
not function properly.
Remedy E5EK-T trouble in the order of the descriptions in this chapter

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

8.2 How to Use the Error Display 8-- 3..............................

8.3 How to Use the 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--12.............................

PARAMETER OPERATIONS LIST A--13..........

ASCII CODE LIST A--15........................

INDEX

REVISION HISTORY

CHAPTER1

CHAPTER 1

INTRODUCTION

This chapter introduces the names of parts on the E5EK- T and their
functions.
For details on how to use the controller and parameter settings, see
Chapter 2 onwards.

CHAPTER 1 INTRODUCTION

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

Main parts 1-2............................

Front panel 1-2...........................

About the displays 1-3.....................

How to use keys 1-4.......................

1.2 Input and Output 1-5......................

Input 1-5.................................

Output 1-6................................

1.3 Program 1-8..............................

How programs are structured 1-8...........

Program operation 1-8.....................

Alarm output 1-8..........................

Program output 1-8........................

1.4 P arameters and Menus 1-9.................

Parameter types 1-9.......................

Selecting modes 1-10........................

Selecting parameters 1-11...................

Fixing settings 1-11.........................

1.5 About the Communications Function 1-12....

1.6 About Calibration 1-13......................

1--1

CHAPTER 1 INTRODUCTION

1.1 Names of parts

JMain parts

Terminals

P2-6

Rear case

Front panel

This page

JFront panel

Pattern No.

Operation indicators

OUT1
SUB1
MANU
HOLD
WAIT

Display key

Run/Reset key

RUN/RST

1--2

OUT2
SUB2
RMT
RST
AT

PTN

RMT

OUT1 OUT2

RUN

RST

PV

SV

MANU

RSP SUB1

STOP

No.1 display

No.2 display

SUB2

AT

WAIT

Up k ey

Down ke y

E5EK

JAbout the displays

1.1 Names of parts

F No.1 display

F No.2 display

F Pattern No.

F Program status

indicators

F Op eration statu s

indicators

Displays the process value or parameter symbols.

Displays the set point, manipulated variable or parameter settings.

Displays pattern No..

Indicate how the present-SP of the operating step changes.

• OUT1
Lights when the pulse output function assigned to “control output 1”
is ON.

• OUT2
Lights when the pulse output function assigned to “control output 2”
is ON.

• SUB1
Lights when the pulse output function assigned to “auxiliary output
1” is ON.

• SUB2
Lights when the pulse output function assigned to “auxiliary output
2” is ON.

• MANU
Lights in the manual operation mode.

• RST
Lights when the control is in reset status.

• RMT
Lights during remote operation.

• HOLD
Lights when the program is in hold status.

• WAIT
Lights when the program is in wait status.

• AT
Flashes during auto-tuning.

1--3

CHAPTER 1 INTRODUCTION

JHow to use keys

RUN/RST

F key

F key

F key

The following describes basic key operations.

To change to run operation from the reset status, press this key for one

second minimum.
To change to the reset status from run operation, press this key for two
seconds minimum.

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 minimum, 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 switching of parameters and menu display items, see

page 1-10.

Each press of

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

key increments or advances the values or settings on

RUN/RST

key is held down simul-

taneously with the

tails, see page 1-10. Also, chapters 3 and 4 describe examples using vari­ous key combinations.

key, or a key is held down continuously. For de-

1--4

1.2 Input and Output

1.2 Input and Output

T emperature input

Voltage input

Current input

CT input
Potentiometer

Event input

Controller

Control output
(heat)

Control output
(cool)

Alarm 1

Alarm 2

Alarm 3

HBA

LBA

Time signal 1

Time signal 2

Program end

Stage output

Error 1

Error 2

Control output 1

Control output 2

Auxiliary output 1

Auxiliary output 2

Transfer output

JInput

The E5EK-T supports the following inputs:

Temperature input, Current input, Voltage input, CT input/potentiom­eter, and Event input.

F Temperature input/Voltage input/Current input

• Only one of temperature input, current input and voltage input can
be selected and 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:

4to20mA,0to20mA

• The following voltages can be connected for voltage input:

1to5VDC,0to5VDC,0to10VDC

F CT input/Poten -

tiometer

• Connect CT input when using the HBA (heater b urnout alarm) func­tion on a standard type controller (E5EK-TAA2). Note that CT input
cannot be used when the linear output unit is mounted.

• Connect the potentiometer when monitoring the valve opening on a
position-proportional type controller (E5EK-TPRR2).

1--5

CHAPTER 1 INTRODUCTION

F Event input

JOutput

F Ou tput assign-

ments

Add on the input unit (E53-CKB) when using event input. You can se­lect from the following five event inputs:

Run/Reset, Auto/Manual, Hold/Hold Cancel, Advance, Pattern

The output functions of the E5EK-T do not operate for five seconds after the
E5EK-T is turned ON.

The E5EK-T supports the following five outputs:

Control output 1
Control output 2
Auxiliary output 1
Auxiliary output 2
Transfer output

When using control output 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).

• The E5EK-T supports the following thirteen output functions:

Control output (heat), Control output (cool), Alarms 1 to 3, HBA,
LBA, Time Signals 1 and 2, Program End, Stage Output,
Error 1 (input error), Error 2 (A/D converter error)

• Assign these output functions to control output 1, control output 2,
auxiliary output 1, and auxiliary output 2.
However, note that as control output 1 is used as the open output and
control output 2 is used as close output on a position-proportional
type controller (E5EK-TPRR2), control outputs 1 and 2 cannot be
used as assignment 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 output 2, auxiliary out­put 1, and auxiliary output 2) can be used. For details, see Chapter 3
Basic Operation/3.3 Setting Output Specifications (page 3-7).

• 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
configuration 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.

• Control outputs 1 and 2 are used depending on the differences in con­trol method as follows:

1--6

1.2 Input and Output

F Transfer ou t pu t

Control Method

Standard control E5EK-TAA2 AC100-240

E5EK-TAA2 AC/DC24

Heating and
cooling control

Position-propor­tional control

• The E5EK-T supports the following five transfer outputs:

Set point, Process value, Heating side manipulated variable,

Cooling side manipulated variable, Valve opening
However, note that heating/cooling side manipulated variables can be
output only on standard type controllers, and valve opening can be out­put only 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.

E5EK-TAA2 AC100-240
E5EK-TAA2 AC/DC24

E5EK-TPRR2 AC100-240
E5EK-TPRR2 AC/DC24

Model

Control Output 1/

Control Output 2

Control output (heat)
/ Alarm, etc.

Control output (heat)
/ Control output (cool)

Open/Close

1--7

CHAPTER 1 INTRODUCTION

1.3 Program

JHow programs

are structured

E5EK-T allows you to configure programs made up of a maximum of
four patterns (pattern 0 to 3).
The number of steps (16 maximum) in each pattern can be specified in

parameters.

Pattern 3

Pattern 1

Pattern 0

Step 0 Step 1 Step 2 Step 15

• Generally, the “time setup method” is used to configure programs. By

this method, set points at each step and time are used as program ele­ments. However, the “ramp rise rate setup method” can also be used.
By this method, the set point, ramp time and soak times are used as
program elements.

JProgram opera-

tion

F Step operation

F Wait operation

JAlarm output

JProgram output

1--8

• Generally, the target patterns are specified before the program is

executed.

• In parameter setup, you can specify repeated execution of the same

pattern (Repeat) or consecutive execution of all patterns 0 to 3 (Run
all).

• During program operation, steps can be skipped (Advance) and the

control monitoring can be paused (Hold).

• When the wait width is specified in parameter setup, the program

does not go to the next step and waits until the PV reaches the speci­fied time (wait width) at the end of each step.

• Alarms that are assigned as outputs operate referenced to the alarm

values preset to each pattern.

• Time signals, program end and stage output can be output accor din g

to output assignment.

• ON/OFF signals are output as time signals according to the timer

that takes a specified step as its start point.

1.4 Parameters and Menus

1.4 Parameters and Menus

JParameter types

F Protect mode

F Manual mode

F L evel 0 mode

E5EK-T parameters are distributed between the following ten modes:

Protect mode

Manual mode

Level 0 mode

Program mode

Level 1 mode

Level 2 mode

Setup mode

Expansion mode

Option mode

Calibration mode

The settings of parameters in each of eight modes (excluding the protect

mode and manual mode) can be checked and modified by selection on
the menu display.

The protect function is for preventing unwanted modification of param-

eters, and switching between run and reset operation or auto and
manual operation.

In this mode, the controller can be switched to manual operation. The

manipulated variable can be manipulated manually only in this mode.

Set the controller to this mode during normal operation. In this mode,
you can change the set p oint and pattern during operation, and execute

step operation (e.g. advance). You can only monitor (not change) the
process value, step No., standby time, pattern elapsing time, pattern
execution count and manipulated variable.

F Program mode

F L evel 1 mode

F L evel 2 mode

F Setup mode

This is the programming mode. In this mode, you can set the number of
steps used in each pattern, pattern execution count, alarm values, set
points for each step, step time, and time signals for two steps.

This is the main mode for adjusting control. In this mode, you can
execute AT (auto-tuning), and set up the control period, PID parame­ters and heater burnout alarm (HBA) conditions.

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, and set the loop break alarm (LBA),
alarm hysteresis and the digital filter value of inputs.

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.

1--9

CHAPTER 1 INTRODUCTION

F Expansion mode

F Option mode

F Calibration mode

JSelecting modes

This is the mode for setting expanded functions. In this mode, you can
set SP setting limitter, switching between advanced PID control or ON/
OFF control, program time unit, selection of step time/rate of rise p ro­gramming, time unit of ramp rise rate, and the time for automatic re­turn to the monitoring display.

This is the mode for setting optional functions. You can select this mode
only when an option unit is mounted 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 mount in the control-

ler. Heater burnout alarm function and position-proportional travel
time are also located in this mode.

This mode is provided so that the user can calibrate inputs and output.

When calibrating input, the selected input type is calibrated. Whereas,
transfer output can be calibrated only when the communication unit
(E53-AKF) is set in the controller.

The following diagram shows the order in which modes are selected.

Power ON

+

1 second min.

Level 0 mode

1secondmin.

Manual mode

1 second min.

1 second min.

1 second min.

1 second min.

1 second min.

1 second min.

1 second min.

Program mode

Level 1 mode

Level 2 mode

Setup mode

Expansion mode

Option mode

Calibration mode

RUN/RST

1 second min.

RUN/RST

1 second min.

+

Protect mode

+

+

1 second min.

RUN/RST

1secondmin.

+

• To select the menu display in any of the above modes (excluding the

protect mode and manual mode), press the

key for 1 second mini­mum. 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.

• To move to the desired mode after you have entered the menu display,
select the desired mode using the

keys and hold down the

key for one second minimum. The display switches to the first

parameter of the mode that you specified.

1--10

1.4 Parameters and Menus

• Protected modes cannot be selected. Also, the menu display does not
appear when modes are protected up to the program mode.

• If you select [
the level 0, program, level 1 and level 2 modes, respectively, are se­lected.
These modes are selected with control still continuing.

• If you select[
setup, expansion, option and calibration modes, respectively, are se­lected.
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 control, reset is canceled.

• To set the controller to the protect mode or to return to the level 0

mode from the protect mode, press the

simultaneously for 1 second minimum.

• To set the controller to the manual mode, press the
second minimum with the
modes. To return to the level 0 mode in the manual mode, press the

key for one second minimum with the key pressed. Be sure

to press the

], [ ], [ ]or[ ]inthe menudisplay,

][ ][ ]or[ ]inthe menudisplay,the

RUN/RST

keyhelddowninthelevel0to2

key first in this operation.

key and the key

key for one

JSelecting

parameters

JFixing settings

• When the controller is not in the manual mode, each press of the
key switches the parameter in the respective mode.

Parameter

1

• If you press the key when at the final parameter, the display re-
turns to the top parameter for the current mode.

• When you change parameter settings or contents, specify the parame­ter using the
two seconds or press the

• When another mode is selected, the content of the parameters before
the mode was selected is fixed.

• When you turn the power OFF, you must first fix the settings and pa­rameter contents (by pressing the
mode). The settings and parameter contents are sometimes not
changed by merely pressing the

Parameter

2

or keys, and either leave the setting for at least

Parameter

Parameter

3

key. This fixes the setting.

key or selecting another

or keys.

n

1--11

CHAPTER 1 INTRODUCTION

1.5 About the Communications Function

The E5EK-T 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

F RS-422

F RS-485

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

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

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

1--12

1.6 About Calibration

The E5EK-T controller is calibrated before shipment from the factory.
So, the user need not calibrate the E5EK-T controller during regular

use.

However, if the E5EK-T controller must be calibrated by the user, use
the parameters provided for the user to calibrate temperature input,
analog input (voltage, current) and transfer output. In this case, note

that the results of calibration will not be assured.
Also, note that calibration data is updated to the latest value each time
that the E5EK-T controller is calibrated. Calibration data set before
shipment from the factory cannot be returned to after calibration by

the user.

1.6 About Calibration

F Calibrating

inputs

F Calibrating trans -

fer output

F Registering cal-

ibration data

The input type selected in parameters is the item to be calibrated. The
E5EK-T 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.

Transfer output also can be calibrated when the communications unit
(E53-AKF) is added on.

When calibrating each item, the calibration data is temporarily regis­tered. This data can be registered as final calibration data only when all
items have been newly calibrated. So, all items must be temporarily
registered when the E5EK-T controller is calibrated.

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--13

CHAPTER 1 INTRODUCTION

1--14

CHAPTER2

CHAPTER 2

PREPARATIONS

This chapter describes the operations (e.g. setup, installation and
wiring) you should carry out before turning the E5EK-T ON.

CHAPTER 2 PREPARATIONS

2.1 Setup 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

CHAPTER 2 PREPARATIONS

2.1 Setup

• 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 mounted. So, this setup operation is unnecessary. (That is, do
not replace the currently mounted unit 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.

JDraw-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

Phillips screwdriver to the left to loosen the screw on the lower

part of the front panel.

Fixing Screw for
Front Panel

2--2

(2) Draw out the internal mechanism towards you holding both sides

of the front panel.

Tighten this screw by a torque of 0.3 to 0.5 N⋅m (approx. 3 to 5 kgf⋅cm).

JSetting up the output unit

2.1 Setup

F Before setup

F Procedure

• 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

2-7.

(1) Check the positions of the sockets you are about to insert the out-

put units into as shown in the following diagram.

OUT1

OUT2

Bracket

(2) R emove the power board in the direction of the arrow in the figure

below. The power board is connected to the control board by a con­nector at the center of the board.

Control board

Power board

(3) Insert the output unit for control output 1 into the socket “OUT1”

and the output unit for control output 2 into the socket “OUT2”.

(4) Fasten the output units with the bracket (accessory).

(5) Mount the power board at its original position.

2--3

CHAPTER 2 PREPARATIONS

JSetting up the option unit

F Before setup

F Procedure

• Check the type of the option unit you are about to set up.

• For details on types of option unit and main specifications, see Appen-

dix, Model List (page A-11) and Appendix, Option Unit Ratings and
Characteristics (page A-4).

• For details on the relationship between units and terminals, see page
2-8.

(1) R emove the power board and option boards in the order shown in

the following diagram.

2

1

(2) Insert the option unit into the socket for option 1. The following

diagram shows the relationship between option unit and mounting
position.

Option 1
E53--AKB: Event inputs 1/2
E53-- AK01: RS--232C
E53-- AK02: RS--422
E53-- AK03: RS--485
E53-- AKF: Transfer output

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

2--4

2.2 Installation

JDimensions

48

PV

2.2 Installation

13.5 100

PTN

MANU

RMT

OUT1 OUT2

STOP

RUN

RST

JPanel cutout

Unit (mm)

SV

91

SUB2RSP SUB1

AT

WAIT

E5EK

96

112

60 mm min

120 mm min

45

+0.6

0

92

+0.8

0

• Recommended panel thickness is 1 to 8
mm.

• Maintain the specified vertical and hori­zontal mounting space between each con­troller.
Controllers must not be closely mounted
vertically or horizontally.

2--5

CHAPTER 2 PREPARATIONS

JMounting

(1) Insert the E5EK-T controller into the mounting hole in the panel.

(2) Fit the mounting b racket (accessory) into the fixing slots on the top

and bottom of the rear case.

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

time until the ratchet starts to slide.

2--6

F Setting up the terminal covers

• Fasten the terminal covers (E53-COV0809) to protect terminals.

• E5EK-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.

2.2 Installation

E5EK-- T

E53-COV08

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

2--7

CHAPTER 2 PREPARATIONS

2.3 Wiring Terminals

JTerminal arrangement

SOURCE

OUT1

OUT2

SUB1

SUB2

10

9

8

7

6

5

4

3

2

1

21 22

23

20

19

18

17

16

15

14

13

12

11

EV1/2

TRSF

RS232C

RS422
RS485

CT

PTMR

TC

Pt

I

V

JPrecautions

when wiring

JWiring

F Power supply

10

21 22

9

8
7
6
5
4
3
2

23

2--8

1

20
19
18
17
16
15
14
13
12

11

TRSF : Transfer output
EV1/2 : Event inputs
PTMR : Potentiometer
SOURCE : 100 to 240 VAC, 50/60 Hz 15VA or 24VAC/DC, 50/60 Hz, 12VA 8W

• On some models, terminals are not used and are left free. Do not wire
these terminals.

• Separate input leads and power lines in order to protect the 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

(8kgf¡cm).

• Use the following type of solderless terminals for M3.5 screws.

7.2mm max.

7.2mm max.

In the following wiring diagrams, the left side of the terminal Nos. indi­cates the inside of the controller.

• Input power to terminals Nos. 9 and 10. Powe r specifications are as fol­lows:

100 to 240 VAC, 50/60 Hz, approx. 15 VA
or
24 VAC, 50/60 Hz, approx. 12 VA
24 VDC, 8W

2.3 Wiring Terminals

F Sensor input

21 22

23

20
19

18
17
16
15

14
13
12
11

10

9
8

7
6
5
4
3

2
1

F Control output

10

9

8

7
6
5

4
3

2
1

21 22

23

20
19

18

17
16
15
14
13

12

11

• Connect the sensor input to terminal Nos. 11 to 14 and 23 as follows
according to the input type.

14

13

12

11

23

Thermocouple Platinum

-

+

resistance

thermometer

14

13

12

11

23

+

14

V

13

12

-

11

23

Voltage input Current input

14

13

12

11

23

-

mA

+

• Term inal 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 available output units and their internal equalizing circuits.

86

75

NPN

E53-Q
E53-Q3

+

L

GND

-

86

75

Relay

E53-R E53-S E53-Q4

+

86

mA V

4to20mA/0to20mA

E53-C3
E53-C3D

LL

75

-

86

75

SSR PNP

86

75

0 to 10V/0 to 5V

E53-V34
E53-V35

+v

GND

+

-

+v

86

75

+

L

-

• With E53-Vjj 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 Output Mode Specifications

E53-R Relay Pulse 250 VAC, 5 A

E53-S SSR Pulse 75 to 250 VAC, 1 A

E53-Q
E53-Q3
E53-Q4

E53-C3
E53-C3D

E53-V34
E53-V35

Voltage (NPN)
Voltage (NPN)
Voltage (PNP)

4to20mA
0to20mA

0to10V
0to5V

Pulse
Pulse
Pulse

Linear
Linear

Linear
Linear

NPN : 12 VDC, 40 mA (with short-circuit protection)
NPN : 24 VDC, 20 mA (with short-circuit protection)
PNP : 24 VDC, 20 mA (with short-circuit protection)

4 to 20 mA, Permissible load impedance: 600 Ω max., Resolution: Approx. 2600
0 to 20 mA, Permissible load impedance: 600 Ω max., Resolution: Approx. 2600

0 to 10 VDC, Permissible load impedance: 1 k Ω min., Resolution: Approx. 2600
0 to 5 VDC, Permissible load impedance: 1 k Ω min., Resolution: Approx. 2600

• With E5EK-T PRR2 controllers, relay output (250 VAC, 1A) is fixed.
When the output unit is replaced, use the E53-R. The following dia­grams show the relationship between terminals and open/close relay
terminal settings.

8

7

Open

6

5

Close

2--9

CHAPTER 2 PREPARATIONS

F Auxiliary output

10

9
8

7
6
5

4
3
2
1

21 22

23

20
19

18
17
16
15
14
13
12

11

F CT input/

Potentiometer

21 22

23

20
19
18

17
16
15

14

13
12

11

10

9
8
7
6
5
4

3
2

1

• Terminal Nos.3 and 4 are for auxiliary output 1 (SUB1) and terminal
Nos.1 and 2 are for auxiliary output 2 (SUB2).

• The internal equalizing circuits for the auxiliary outputs are as fol­lows:

4

3

Auxiliary

output 1

2

1

Auxiliary

output 2

• Output specifications are as follows:

SPST- NO, 250 VAC, 3 A

• When the HBA function on an E5EK-TAA2 controller is used, connect
CT input (CT) to terminal Nos.15 and 17. When monitoring the valve
opening on an E5EK-TPRR2 controller, connect the potentiometer
(PTMR) to terminal Nos.15 to 17. Connect each of these inputs as fol­lows:

17

16

15

CT input Potentiometer

CT

17

16

15

O

W

C

• For details on CT inputs, see Appendix, About Current Transformer
(CT) Input (page A-5).

• For details on the p otentiometer, see the Instruction Manual for the
valve connected to the controller.
The meaning of terminal symbols is as follows:

O: OPEN, W: WIPE, C: CLOSE

Thevariableresistancerangeis100Ω to 2.5 kΩ.

About Isolation

2--10

The E5EK-T has independent power supplies
for each of the terminal blocks shown on the
right.

AB/CC

21 22

23

20
19
18
17
16
15
14
13
12
11

10

9
8
7

B

6
5
4

E

3
2
1

FD

2.3 Wiring Terminals

F Event input

21 22

23

20
19

18

17
16
15
14
13
12
11

10

9

8
7
6
5
4
3
2
1

• Connect event inputs 1 and 2 (EV1/2) to terminal Nos.18 to 20. How ­ever, note that terminal Nos.18 to 20 cannot be used on controllers
supporting the communications function.

• Connect the event inputs as follows:

EV1

EV2

COM

Event input 1 and 2

19

18

+

-

+

20

• Use event inputs under the following conditions:

Contact input

ON: 1 kΩ max., OFF: 100 kΩ 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:

+

20

EV1

19

18

+

-

EV2

COM

Event input 1 and 2

F Transfer ou t pu t

21 22

23

20
19

18
17
16
15
14
13
12
11

10

9

8
7
6
5
4
3
2
1

F Communications

• Connect transfer output (TRSF) to terminal Nos. 21 and 22.

• The internal equalizing circuit for transfer output is as follows:

+

21

4to20mA L

22

-

• Transfer output specifications are as follows:

4to20mADC,Permissibleloadimpedance:600Ω max., R esolution:

Approx. 2600

• Terminal Nos.18 to 20, 21 and 22 can be used only on controllers that
support the communications units (E53-AK01/02/03).

• For details on wiring, see Chapter 6, Using the Communications
Function.

2--11

CHAPTER 2 PREPARATIONS

2--12

CHAPTER3

CHAPTER 3

BASIC OPERATION

This chapter describes actual examples for understanding the basic
operation of the E5EK-T.

3.1 ConventionUsedinthisChapter 3-2........

3.2 Setting Input Specifications 3-4.............

Input type 3-4.............................

CHAPTER 3 BASIC OPERATION

Temperature input 3-5.....................

Analog input 3-5..........................

3.3 Setting Output Specifications 3-7...........

Output assignments 3-7....................

Direct/reverse operation 3-8................

Control period 3-8.........................

3.4 Setting Alarm Type 3-10....................

Alarm type 3-10............................

Alarm value 3-10...........................

Alarm hysteresis 3-11.......................

Closeinalarm/openinalarm 3-11............

3.5 Setting Patterns 3-14.......................

Pattern No. 3-15............................

Number of steps 3-15.......................

Step SP/Step time 3-15......................

Alarm value 3-16...........................

3.6 Protect Mode 3-19..........................

Security 3-19...............................

Key protect 3-19............................

3.7 Starting and Stopping Operation 3-21........

3.8 Adjusting Control Operation 3-22............

Changing programs 3-22....................

Manual operation 3-24......................

Auto-tuning (A.T.) 3-25.....................

3--1

CHAPTER 3 BASIC OPERATION

3.1 Convention Used in this Chapter

This chapter describes basic E5EK-T operations such as how to set up
parameters, start and stop operation, and adjust control operation.

For more complex control examples, refer to Chapter 4 Applied Opera­tion and Chapter 5 Parameters.

F Basic Operation

Flow

The following diagram shows the basic flow of operation.

Power ON

Setup

Setting input specifications

Setting output specifications

Setting alarm output

Setting patterns

Protecting parameters

Operation

Start

Adjustment

3--2

Stop

Power OFF

The descriptions in this chapter follow the order of basic operations
shown in the flow above. Examples of operation of each of the items are
described up to completion of parameter setup. However, you must
move to the top parameter of the following Setting. For example, when

you have finished “setting input specifications” and you want to “set
output specifications,” move to the top parameter of “setting output
specifications” from the bottom parameter of “setting input specifica-

tions.”
For details on moving to parameters between items, refer Chapter, Se­lecting modes and Selecting parameters (page 1-10).

3.1 Convention Used in this Chapter

F Setup examples

This description assumes that the controller is operated under the fol­lowing conditions.

• A K thermocouple is used as the input.

• Control output (heat), alarm 1 and alarm 2 functions are assigned to

“control output 1,” “control output 2” and auxiliary output 1, respec­tively. Of these, only control output 1 and auxiliary output 1 are used.

• The relay output unit is mounted at control output 1.

• The upper-limit alarm is set as alarm 2. The alarm is output when the

temperature exceeds 10_C with respect to the PV.

• The program is made up of one pattern comprising four steps.

• The following figures show terminal wiring and the program used in

the setting examples.

Temperature sensor:
K thermocouple

Control target

20

19

18

17

16

15

14

13

12

11

--

+

Alarm 2 (upper limit)
(alarm value=10_C)

10

SOURCE

OUT1

SUB1

E5EK-- TAAjj
(Control output 1: E53--R)

9

8

7

6

5

4

3

2
1

21 22

23

SP

Step 1 Step 2 Step 3

100

Pattern 0

50

0.20 0.40 0.20

Time: hr, min

3--3

CHAPTER 3 BASIC OPERATION

3.2 Setting Input Specifications

Setting input specifications

Input type

N

Temperature input?

Y

Temperature unit

Decimal point

Temperature input shift

End of setup

Setup mode

Scaling

Level 2 mode

• With temperature input, scaling and decimal point parameters need
not b e set as this information is determined by the input (sensor)
type. (These parameters are not displayed.) Note that temperature
unit and temperature input shift parameters need to be set.

• With analog input, the “scaling upper limit”, “scaling lower limit”
and “decimal point” parameters need to be set.

JInput type

3--4

• Set the type No. (0 to 21) in the “input type” parameter (Set up
mode). The factory setting is “2: K1 (thermocouple).”

• For details on input types and setting ranges, see page 5-31.

JTemperature input

F Temperature unit

3.2 Setting Input Specifications

• To switch the temperature unit from “_C” to“_F” when input is tem-
perature, switch the “_C/_F selection” parameter (setup mode) from

”to“ ”.

“

F Temperature

input shift

JAnalog input

• When input is temperature input, the upper and lower limit values of
the sensor can be shifted linearly. For example, if both the upper and
lower limit values are shifted by 1.2_C,theprocessvalue(beforeshift)
is regarded as 201.2_C after shift when input is 200_Cbeforeshift.

• 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

0

limit value

Input (%FS)

100

• When the analog input (the voltage input and current input) is se­lected, scaling matched to the control is required.

• The “scaling upper limit”, “scaling lower limit” and “decimal point”
parameters (setup mode) are used for scaling. These parameters can­not be used when the temperature input type is selected.

• 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 a 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%)

0

100%FS

Input (4 to 20 mA)

3--5

CHAPTER 3 BASIC OPERATION

Setting Example

1 second min.

1 second min.

1 second min.

In this example, let’s check the input type and temperature units, and
shift the lower limit by 1_C and the upper limit by 3_C.

“input type” = “2: K1”
“temperature unit” = “_C”

“input shift upper limit”= “3.0”
“input shift lower limit” = “1.0”

(1) Select the menu display, and select “ :setup mode”usingthe

or keys. For details on selecting the menu display, see page

1-10.

(2) Press the

mode. The top parameter in the setup mode “

key for one second minimum to enter the setup

:inputtype”is

displayed. This parameter is factory-set to “2: K1”.

(3) Press the

“

: _C”.

to “

(4) Select the menu display, and select “

key to fix the set value. The display changes to

: _C/_F selection” parameter. This parameter is factory-set

: level 2 mode” using the

or keys.

(5) Press the

key for one second minimum to enter the level 2

mode. The top parameter in the level 2 mode [ ] (“local/re­mote” parameter) is displayed.

(6) Press the

key until [ ] (“input shift upper limit” parame-

ter) is selected. This parameter is factory-set to “0.0”.

(7) Press the

(8) Press the

key until “3.0” is displayed.

key until [ ] (“input shift lower limit” parame-

ter) is selected. This parameter is factory-set to “0.0”.

(9) Press the

keyuntil“1.0”isdisplayed.Thissetsthe“inputshift

upper limit” and “input shift lower limit” values.

3--6

3.3 Setting Output Specifications

Dest

inat

i

Some output specifications are different according to controller type,

standard or position-proportional. The following table summarizes
which output-related parameter settings are supported.

3.3 Setting Output Specifications

JOutput assignments

F Standard type

Parameter

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.)

Standard

Typ e

Position-

proportional

Typ e

Output assignments are described according to controller type.

• Thirteen outputs are supported. These functions are assigned to con­trol outputs 1 and 2, and auxiliary outputs 1 and 2.

• Restrictions on assignment destination are placed on some of the out­puts.

• The following table shows where outputs may be assigned to.

Assignment

Control Output Auxiliary Output

on

Output Function

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
Time signal 1 F F F F
Time signal 2 F F F F
Program end F F F F
Stage output F F F F
Error 1 : Input error F F
Error 2 : A/D convertor error F F

1 2 1 2

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 output is not assigned. For details on heating and cooling con­trol, see Chapter 4 Applied Operation/4.1 Selecting the Control Meth­od (page 4-2).

3--7

CHAPTER 3 BASIC OPERATION

Dest

inat

i

• 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”,
“control output 2 assignment”, “ auxiliary output 1 assignment” and
“ auxiliary output 2 assignment” parameters (setup mode).

F Position -propor-

tional type

JDirect/reverse

operation

• Position-proportional type controllers support nine output functions.
These are assigned to auxiliary outputs 1 and 2.

• Restrictions on assignment destinations are placed on some of the
outputs. The following table shows where outputs may be assigned to.

Assignment

Output Function

Alarm 1 F F
Alarm 2 F F
Alarm 3 F F
Time signal 1 F F
Time signal 2 F F
Stage output F F
Program end output F F
Error 1 : Input error F F
Error 2 : A/D converter error F F

• “Direct operation” (or normal operation) refers to control where the ma­nipulated variable is increased according to the increase in the process
value. Alternatively, “reverse operation” refers to control where the ma­nipulated variable is decreased according to the decrease in the process
value.
For example, when the process value (PV) (temperature), is lower
than the set point (SP) (temperature), in a heating control system, the
manipulatedvariableincreasesbythedifferencebetweenthePVand
SP values.
Accordingly, this becomes “reverse operation” in a heating control
system, or alternatively, “direct operation” in a cooling control sys­tem.

• Direct/reverse operation is set in the “direct/reverse operation” pa­rameter (setup mode). Default is “

Control Output Auxiliary Output

on

1 2 1 2

: reverse operation”.

JControl period

3--8

• On position-proportional type controllers, this item cannot be set.

• On a standard type controller, when the output unit is for pulse out-

put such as relay output, set the pulse output cycle (control period).
Though a shorter control period provides better control performance,
the control period should be set to 20 seconds minimum taking the
life expectancy of the output unit into consideration when the output
unit is for relay output.

• The control period is set in the “control period (heat)” parameter
(level 1 mode). Default of the “control period” parameter is “20:20
seconds.” Default of the “control period (cool)” output function is not
assigned. So, the “control period (cool)” parameter cannot be set.

3.3 Setting Output Specifications

Setting Example

1 second min.

1 second min.

1 second min.

All of the above settings in this example are factory settings. In this ex­ample, let’s check the parameter settings.
In this example, the parameters are set as follows:

“control output 1 assignment” = “control output (heat)”

“auxiliary output 1 assignment” = “alarm output 2”
“direct/reverse operation” = “reverse operation”
“control period” = “20 secs”

(1) Select the menu display, and select “ :setupmode”usingthe

or keys. For details on selecting the menu display, see page

1-10.

(2) Press the

mode. The top parameter in the setup mode “

key for one second minimum to enter the setup

:inputtype”is

displayed.

(3) Press the

parameter) is displayed. Default is [

(4) Asthesettinginthisexampleistobeleftasitis,pressthe

twice. The display changes to [
ment” parameter). Default is [

(5) Asthesettinginthisexampleistobeleftasitis,pressthe

until [
Default is [

(6) Asthesettinginthisexampleistobeleftasitis,pressthe

key until [ ] (“control output 1 assignment”

].

key

] (“auxiliary output 1 assign-

].

key

] (“direct/reverse operation” parameter) is displayed.

].

or

keys to select “ : l evel 1 mode”. For details on selecting

the menu display, see page 1 -10.

(7) Press the

key for one second minimum to enter the level 1

mode. The top parameter in the level 1 mode “ : Proportional
band” is displayed.

(8) Press the

key until [ ] (“control period (heat)” parameter)
is displayed. Default is “20”. As the setting in this example is to be

left as its is, quit key operation.

3--9

CHAPTER 3 BASIC OPERATION

A

l

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 for when alarm output is ON can be set to
“open” or “closed” in the “close in alarm/open in alarm” parameter.

JAlarm type

• The following table shows the alarm types supported by the E5EK-T
controller and their respective operations.

armType

Upper-and lower-limit alarm

1

(deviation)

Upper-limit alarm

2

(deviation)

Lower-limit alarm

3

(deviation)

Upper-and-lower-limit range
alarm

4

(deviation)

Upper-and-lower-limit alarm
with standby sequence

5

(deviation)

Upper-limit alarm with stand­by sequence

6

(deviation)

Lower-limit alarm with stand­by sequence

7

(deviation)

Absolute-value upper-limit

8

alarm

Absolute-value lower-limit

9

alarm

Absolute-value upper-limit

10

alarm with standby sequence

Absolute-value lower-limit

11

alarm with standby sequence

When X is positive When X is negative

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

Alarm Output Operation

XX

SP

X

SP

X

SP

XX

SP

XX

SP

X

SP

X

SP

X

0

X

0

X

0

X

0

Always ON

ON
OFF

ON
OFF

Always OFF

Always OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
OFF

X

SP

X

SP

X

SP

X

SP

X

0

X

0

X

0

X

0

• Alarm types are set independently for each alarm in the “alarm 1 to
3” parameters (setup mode). Default is “2: Upper-limit alarm (devi­ation)”.

JAlarm value

3--10

• Alarm values are indicated by “X” in the tabl e above. Alarm output
operation differs according to whether the value of the alarm is posi­tive or negative.

• Alarm values are built into the program and are set for each pattern.
For details, see 3.5 Setting Patterns” (page 3-14).

3.4 Setting Alarm Type

C

l

O

JAlarm hysteresis

F Standby

sequence

• The hysteresis of alarm outputs when alarms are switched ON/OFF
can be set as follows:

Upper limit alarm Lower limit alarm

ON

OFF

Alarm hysteresis

Alarm value

ON

OFF

Alarm value

Alarm hysteresis

• Alarm hysteresis is set independently for each alarm in the “alarm 1
to 3 hysteresis” parameters (level 2 mode). Default is “0.02:

0.02%FS”.

• “Standby sequence” is a function for unconditionally turning alarm
output 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 “ lower-limit alarm,” gen­erally the process value is within the alarm range, and alarm output
smaller than the set point, and alarm output becomes ON when this
state continues. However, if the alarm type is set to “ lower-limit
alarm with standby sequence”, alarm output first becomes ON when
theprocessvalueexceedsthe alarm settingvaluetoleavethealarm
range and once again falls below the alarm value.

• The standby sequence is canceled when an alarm is output. It is, how­ever, restarted later by one of the following conditions:

Operation is started or power is turned ON.
A pattern is started.
The program advances to the next step.

The SP of the current step is changed.
The currently running alarm value is changed.
The input shift value is changed.
Advance is executed.

JCloseinalarm/openinalarm

• When the controller is set to “close in alarm,” the status of the alarm
output function is output as it is. When set to “open in alarm,” the
status of the alarm output function is output inverted.

Output Output LED

oseinalarm

peninalarm

Alarm

ON ON Lit

OFF OFF Not lit

ON OFF Lit

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). Default is “

: close in alarm”.

3--11

CHAPTER 3 BASIC OPERATION

F Summary of

alarm operations

The figure below visually summarizes the above descriptions of alarm
operations (when alarm type is set to “lower-limit alarm with standby
sequence”):

Alarm type: lower limit alarm with
standby sequence

PV

Alarm value

Alarm hysteresis

Time

Standby sequence
canceled

Alarm

output

ON

OFF

ON (closed)
OFF (open)

3--12

3.4 Setting Alarm Type

Setting Example

1 second min.

1 second min.

Alarm 2 is output when the temperature exceeds alarm value 2 pro­grammed to the SP. Parameter factory settings for “alarm type 2,”
“alarm hysteresis” and “close in alarm/open in alarm” are used.
In this example, the related parameters are set as follows:

“alarm type 2” = “2: upper-limit”
“alarm value 2” = (set in program setting)
“alarm hysteresis: = “0.02”
“close in alarm/open in alarm” = “

: close in alarm”

In this example, let’s check the alarm type.

(1) Select the menu display, and select “ : setup mode” pressing

the or keys. For details on selecting the menu display, see
page 1-9.

(2) Press the

the setup mode “

(3) Press the

key to enter the setup mode. The top parameter in

: input type” is displayed.

key until [ ] (“alarm type 2” parameter) is dis-

played. Default is “2: upper limit”.

1 second min.

3--13

CHAPTER 3 BASIC OPERATION

3.5 Setting Patterns

If you want to set parameters in the program mode during controller operation, you must first stop op­eration. Operation may continue only in special instances, for example, to change SP during controller
operation.

• Parameters that you use frequently for programming can be set in the
“program mode.” The flow below shows the parameters that are
available in the program mode and the order in which they are set.

Select the program mode.

Select pattern No.

Set number of steps

Step time/Rate of rise

programming

Step time setting

Set step SP/step time

Set pattern execution count

Set alarm value

Set time signal 1, 2

Step/ON time/OFF time

n

All patterns completed?

Rate of rise setting

Set SP/Ramp time

/Soak time of each step

y

3--14

End of program

This chapter describes the basic operation of programming. For details
on the following parameters, refer to Chapter 4 Applied Operation:

“Step time/Rate of rise programming”, “Pattern execution count”,
“Time signal 1, 2”

3.5 Setting Patterns

JPattern No.

JNumber of steps

JStep SP/Step

time

:

:

: :0to15

• This parameter cannot be changed during controller operation.

• Set the desired pattern No. Step SP, step time, alarms and other pa-

rameters that follow this parameter are set for the pattern that is set
in this parameter.

• Set within the range 0 to 3 (pattern 0 to 3). Default is “0”.

• Set the number of steps for the pattern that you specified in the “pat-

tern No.” parameter.

• Set within the range 1 to 16 (step). Default is “8”.

• Set only the number of steps used in the program in order from step

0, as “step 0 SP”, “step 0 time”, “step 1 SP”, “step 1 time” and so
forth.

• Set within the range from set point lower limit to set point upper
limit for step SP. Default is “0”.

• Set within the range 0.00 to 99.59 (hours:minutes or minutes:se­conds). Default is “0.00”.

SP

Step 0 Step 1 Step 2 Step 3

Step 0 hour

A: SP of steps 0 and 3
B: SP of steps 1 and 2

• As shown in the above figure, step 0 is a fixed value, so when ramp
operation is started, set the “step 0 time” parameter to “0.00” to con­figure the program so that ramp operation starts from step 1.

Step 1 hour Step 2 hours Step 3 hours

Time

3--15

CHAPTER 3 BASIC OPERATION

JAlarm value

:

: :0to3

• Alarm values can be set onl y for alarms that have been assigned as
output.

• When a deviation alarm i s assigned as output, the alarm value is set
with respect to SP. The following example shows the relationship be­tween the SP and alarm value when the alarm type is set to “upper
limit.”

SP

Step 0 Step 1 Step 2

Step1SP

Step0SP

Alarm type: upper-limit alarm

Alarm value

Time

Time

About the Alarm
Value Decimal
Point

3--16

The decimal point of the alarm value conforms to the setting of the “decimal point”
parameter.

3.5 Setting Patterns

Setting Example

1 second min.

In this example, let’s set the next program to pattern 0.

SP

100

50

Step 0 50 0.00 10
Step 1 100 0.20 10
Step 2 100 0.40 10
Step 3 50 0.20 10

Step 1 Step 2 Step 3

0.20 0.40 0.20

SP

Time

(hr, min.)

Alarm

value 2

• Pattern execution count “1”

• Time signals are not used.

Time: hr, min

(1) Select the menu display, and select “ : program” pressing the

or keys. For details on selecting the menu display, see page

1-10.

(2) Press the

in the program mode “

key to enter the program mode. The top parameter

: pattern” is displayed. Default is “0 :

pattern 0”.

(3) As the setting “0: pattern 0” in this example is to be left as it is,

press the

key. The display changes to the [ ](“numberof

steps” parameter). Default is “8”.

(4) Set the parameter to “4” pressing the

(5) When you press the

, the display changes to the [ ](“step0

or keys.

SP” parameter). Default is “0”.

(6) Set the parameter to “50” pressing the

(7) When you press the

, the display changes to the [ ](“step0

or keys.

time” parameter). Default is “0.00”.

(8) As the setting “0.00: 0 minutes” in this example is to be left as it is,

press the

key. The display changes to the [ ](“step1SP”

parameter). Default is “0”.

(9) Set the parameter to “100” pressing the

(10)Inthesameway,setthe“

: step 1 time”, “ :step2SP”,

or keys.

“ : step 2 time”, “ :step3SP”,“ : step 3 time” parame­ters, in that order.

(11) When you have finished setting the step SPs and times press the

key. The [ ] (“pattern execution count” parameter, is dis-

played. Default is “1”.)

3--17

CHAPTER 3 BASIC OPERATION

(12) As the setting in this example is to be left as it is, set the alarm val-

(13) Set the parameter to “10: 10 seconds” pressing the

ue. Press the

key until [ ] (“alarm 2” parameter) is dis-

played. Default is “0”.

keys.

or

3--18

3.6 Protect Mode

Mod

3.6 Protect Mode

JSecurity

• 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” parameter (protect mode) limits the
range of protectable parameters. The following table shows the rela­tionship between set values and the range of protection. (Only modes
marked by F can be operated.)

Set value

e

Calibration F F
Option F F
Expansion F F
Setup F F
Level 2 F F F
Level 1 F F F F
Program F F F F F
Level 0 F F F F F F *1

*1 Only the “PV/Present SP” parameter can be displayed.

0 1 2 3 4 5 6

• When this parameter is set to “0”, parameters are not protected.

• When this parameter is set to “5”, 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 “6”, the “PV/Present SP” parameter
can only be monitored.

• Default is “1”.

JKey protect

• This parameter disables key operation for switching run/reset or
auto/manual. For example, if you protect the key operation for switch­ing auto/manual by the “key protect” parameter (protect mode) dur­ing automatic operation, the controller cannot be set to the manual
mode, preventing manual operation of the controller during opera­tion.

• The following table shows the relationship between set values and
keys that are protected.

Set value

0

1

2

3

Key protection OFF
A/M cannot be selected.
RUN/RST cannot be selected.
Both A/M and RUN/RST cannot be selected.

Description

• Default is “0 : All keys can be operated.”

3--19

CHAPTER 3 BASIC OPERATION

Setting Example

1 second min.

1 second min.

RUN/RST

RUN/RST

In this example, let’s set the parameters as follows:
“Security” “2” (all parameters in modes other than the setup

mode are protected)

“Key protect” “1” (Auto/manual key operation cannot be

switched)

(1) Press the

RUN/RST

and keys simultaneously for 1 second mini-

mum. The controller enters the protect mode. In the protect mode,
the top parameter in the protect mode “security” is displayed.
Default is “1”.

(2) Press the

(3) Press the

(4) Press the

(5) Press the

key to change the parameter setting to “2”.

key to switch to the “key protect” parameter.

key to change the parameter setting to “1”.

RUN/RST

and

keys simultaneously for 1 second mini-

mum. The display changes to the “PV/Present SP mon itor” param-

eter (level 0 mode).

3--20

3.7 Starting and Stopping Operation

3.7 Starting and Stopping Operation

• To start program operation (that is, switch from the reset state to run

RUN/RST

operation), press the

• To stop program operation (that is, switch from run operation to the

reset state), press the

the controller has stopped operating (reset state), the RST LED
lights.

• The controller cannot be reset during auto-tuning (A.T.).

RUN/RST

RUN/RST

key for one second minimum.

key from two seconds minimum. When

F Man ip ulated vari-

able at reset

• On a standard type controller, specify the manipulated variable ( -5.0
to 105.0%) in the “MV at reset” parameter (level 2 mode) to output
the manipulated variable during reset. Default is “0.0:0.0%”.

• When the controller is reset in the manual mode, the manual MV
takes precedence.

• Both the MV limitter and MV change rate limitter are ineffective
against the manipulated value at reset.

• On a position-proportional type controller, you can select either of the
open, closed or hold state. In an open state, only control output 1 is
ON. In a closed state, only control output 2 is ON. In a hold state,
both control outputs 1 and 2 are OFF. Default is “

”.

Using Event Input

On the E53-AKB, run/reset can be selected by event input.
For details on how to use event input, see 4.8 How to Use Event Input, page 4-21.

3--21

CHAPTER 3 BASIC OPERATION

3.8 Adjusting Control Operation

JChanging

programs

F Changing the SP

Before change

• Programs are changed in the pr ogram mode. Note that pattern Nos.
cannot be changed during program operation. So, only the pattern
that is currently running can be changed.

• You cannot change the program when the “security” parameter (pro­tect mode) is set to “5” or “6”.

• ChangetheSPofsteps0to15in“step0to15SP”parameters(pro­gram mode).

• When the SP is changed midway through a step, the Present SP is
shifted on a line obtained by taking the new SP as the target point.

SP

After change

Changing point

Time

Step N Step N+1

F Changing the

time value

Before change

After change

About Changing
the Number of
Steps

• Change the time value of steps 0 to 15 in “step 0 to 15 time” parame­ters (program mode).

• When the time value is changed midway through a step, the step time
changes. The gradient of the line by which SP shifts also changes.

SP

Changing point

Time

Step N Step N+1

Step N Step N+1

If you set the “number of steps” parameter (program mode) to a value smaller
than the current number of steps during program operation, program operation
is immediately exited.

3--22

3.8 Adjusting Control Operation

Setting Example

1 second min.

1 second min.

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

(1) Press the key for 1 second minimum at the currently executing

“PV/Present SP” display.

(2) The display changes to the menu display.

(3) Set the parameter to “

(4) Press the

key to enter the program mode. The top parameter in

: program” pressing the or keys.

the program mode “ : pattern” is displayed.

(5) Press the

key to display the [ ] (“number of steps” parame-

ter).

(6) Press the

key. [ ] (“step 0 SP” parameter) is displayed, and the

No.2 display indicates “50.0”.

(7) Press the

(8) Press the

key to set the parameter to ”60.0”.

key for 1 second minimum. The menu display (“

: program” parameter) is redisplayed.

(9) Select “

the

: level 0 mode” pressing the or keys, and press

key for 1 second minimum. The “PV/Present SP” display is

redisplayed.

1 second min.

1 second min.

3--23

CHAPTER 3 BASIC OPERATION

JManual operation

F Standard type

• On a standard type controller, the manipulated variable is controlled,
and on a position-proportional type controller, the valve opening is
controlled.

• To set manual operation and manually set the manipulated variable
or the valve opening, press the

key and key simultaneously
for 1 second minimum. Then the controllers enters the manual mode.
To quit the manual mode, press the

key and key again simul­taneously for 1 second minimum. The controller enters the level 0
mode without entering the menu display.

• Though the control shifts to manual operation if the controller is set
to the manual mode during program operation, the program ad­vances. When program operation is started in the manual mode, pro­gram also advances.

• In the manual mode, the automatic return of display mode does not
work.

• The process value is displayed on the No.1 display, and the manipu­lated variable is displayed on the No.2 display.

• To change the manipulated variable, press the

or keys. After

two seconds, the manipulated variable is updated to the new setting.

• 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 that was active at power
interruption when the power is reset.

Manipulated variable (%)

Manual

Auto

F Position -propor-

tional type

Balance-less,
Bump-less Opera­tion

Balance-less,

bump-less points

0

Manipulated vari­able switched

++

OFF ON

Power inter­ruption

• 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.

• When you press the
press the

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

key, the close side becomes ON.

key, the open side becomes ON. When you

Time

3--24

3.8 Adjusting Control Operation

JAuto-tuning

(A.T.)

F 40%AT

Deviation at start of AT
execution ≧ 10% FS

• AT (auto-tuning) cannot be executed while operation is reset or dur­ing ON/OFF control.

• When you execute auto-tuning, the optimum PID parameters are au­tomatically set by forcibly changing the manipulated variable to cal­culate the characteristics (called the “limit cycle method”) of the con ­trol target. During auto-tuning, time counting is stopped and the
“AT ” L E D f la sh e s.

• 40%AT or 100%AT can be selected by the limit cycle o f MV change
width. Specify [

]or[ ], respectively, in the “A T execute/

cancel” parameter (level 1 mode).

• During heating and cooling control on a standard type controller, and
on a position-proportional type controller, only 100%AT can be
executed. (So, “

• To cancel AT execution, specify “

: 40%AT” is not displayed.)

:ATcancel”.

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 generate d varies according to wheth­er or not the deviation (DV) at the start of AT execut ion is 10% full-scale
or less.

Deviation at start of AT
execution < 10% full-scale

Limit cycle of MV change
width 40%

Limit cycle of MV change
width 40%

Set point Set point

Deviation 10%
full-scale

StartofAT
execution

F 100%AT

End of AT
execution

In order to set the li mi t cycle of MV change width to 100%, select

Time Time

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

StartofAT
execution

StartofAT
execution

End of AT

Deviation 10%
full-scale

End of AT
execution

Time

3--25

CHAPTER 3 BASIC OPERATION

Setting Example

1 second min.

AT execute

End of AT execution

In this example, let’s execute 40%AT.

(1) Select the menu display, and select “ : level 1 mode” using the

or keys. For details on selecting the menu display, see page

1-10.

(2) Press the

the setup mode “
example, the parameter setting is “

(3) Press the

key to enter the level 1 mode. The top parameter in

: AT execute/cancel” is displayed. In this

:ATcancel”.

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 “

:ATcancel”.

3--26

About PID Param­eters

AT Execution T im­ing

When control characteristics are already known, the PID parameters can be set
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 5-18).

The E5EK-T differs from fixed-value type controllers in that the SP changes au­tomatically. So, the timing of AT execution is the most important factor in con­trol.
To obtain PID parameters for a specific SP, make a fixed-value program as follows
and execute AT.

10 minutes

100

Step 0

Set value

SP Time

Step 0 100 0.10

CHAPTER4

CHAPTER 4

APPLIED OPERATION

This chapter describes each of the parameters required for making
full use of the features of the E5EK-T.
Read this chapter while referring to the parameter descriptions in
chapter 5.

CHAPTER 4 APPLIED OPERATION

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

Heating and cooling control 4 -2.............

Position-proportional control 4-4............

ON/OFF control 4-5.......................

4.2 Operating Condition Restrictions 4-7........

Manipulated variable restrictions 4-7........

Set point limiter 4-8.......................

4.3 Ramp Rise Rate Setup Program 4-9.........

Runningtherampriseratesetupprogram 4-11

Program example 4-12......................

4.4 Program Operation 4-13....................

Hold/Advance 4-13..........................

Pattern operation 4-14......................

4.5 W ait Operation 4-16........................

4.6 Program output 4-17........................

Time signal 4-17............................

Program output 4-18........................

4.7 Setting Running Conditions 4-19.............

Operation at power ON 4-19.................

Starting the program run 4-19...............

End condition 4-20.........................

4.8 How to Use Event Input 4-21................

Input assignments 4-21.....................

Detailed description of input functions 4-22...

4.9 How to Use the Heater Burnout Alarm 4-23...

Heater burnout detection 4-23...............

Operating conditions 4-23...................

How to calculate the heater burnout

set value 4-24..............................

4.10 LBA 4-26..................................

4.11 How to Use Transfer Output 4-28............

4--1

CHAPTER 4 APPLIED OPERATION

4.1 Selecting the Control Method

JHeating and

cooling control

When selecting the control method, set the parameters according to the
following table. (Parameters are factory-set to heating control.)

Parameter

Control
Method

Heating control

(Standard)

Cooling control

(Standard)

Heating and cooling

control

(Parameters are factory-set to heating control.)

• For details on how to assign outputs, see 3.3 Setting Output Specifica­tions (page 3-7).

• When heating and cooling control is selected, the “dead band” and
“cooling coefficient” parameters can be used.

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 p ositive value produces a dead band, while setting a negative val­ue produces an overlap band.
The dead band is factory-set to “0.00:0.00%FS.”

Output Output

Dead band: dead
band width = positive

Control Output 1

Assignment

Control output (heat)

Control output (heat)

Control output (heat) Control output (cool) Reverse operation

Control Output 2

Assignment

-

-

Overlap band: dead
band width = negative

Direct/Reverse

operations

Reverse operation

Direct operation

Heating
side

0

F Cooling

coefficient

Cooling
side

PV

Set point Set point

Heating
side

0

If the heating and cooling characteristics of the control target greatly
differ, 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

Cooling
side

PV

4--2

4.1 Selecting the Control Method

F Man ip ulated vari-

able at reset

• In heating and cooling control, the manipulated variable output that
is output when controller operation is stopped is dependent on the set
value of the “MV at reset” parameter (level 2 mode) in the same way
as for standard control.

• However, note that in heating and cooling control, the manipulated
variable at the cooling side is treated as a negative value for the sake
of convenience. When the manipulated variable at reset is a negative
value, the manipulated variable is output to only the cooling side, and
when a positive value, the manipulated variable is output to only the
heating side.
Default is “0”. If the controller is operated with default, the manipu­lated variable is not output to both the heating and cooling sides.

Switching with
Manual Operation

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

4--3

CHAPTER 4 APPLIED OPERATION

JPosition-propor-

tional control

8

Open

7

6

Close

5

O

17

W

16

C

15

Potentiometer

F Travel time

F Valve opening

monitor

• Use the position-proportional type controller for position-proportion­al control.

• On a position-proportional type controller, control output 1 is used
for open output, and control output 2 is used for closed 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:

MV limitter
P and PD control
40% AT
LBA
HBA
ON/OFF control

• 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).

• Default is “30:30 seconds.”

• The valve opening can be monitored when a potentiometer is con-

nected to the controller. However, be sure to execute motor calibra­tion after connecting the potentiometer.

F Man ip ulated vari-

able at reset/PV
error

F Other functions

• Open, closed or hold can be selected as output at reset or PV error. Set
these outputs in the “MV at reset” or “MV at PV error” parameters
(level 2 mode).

• Set the dead band in the “position-proportional dead band” parame­ter (level 1 mode). Default is “2.0:2.0%”.

• Set the open/close hysteresis in the “open/close hysteresis” parameter
(level 2 mode).

Open/close hysteresis

Dead band

ON

OFF

MV-Valve opening

100%0-100%

4--4

4.1 Selecting the Control Method

JON/OFF control

F Hysteresis

• ON/OFF control is selected by the “PID/ON/OFF” parameter (expan­sion mode). When this parameter is set to [
trol is selected, and when set to [

], ON/OFF control is selected.

The “ON/OFF control” parameter is factory-set to [

], advanced PI D con-

].

• During position-proportional control, ON/OFF control cannot be se­lected.

• In ON/OFF control, hysteresis is provided in the p rogram when
switching 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 “hysteresis (cool)” parameters, re­spectively.

• In standard control (heating or cooling control), hysteresis can be set
only for the heating side.

Hysteresis (heat)

ON

OFF

Set point

PV

• In heating and cooling control, a dead band can be set. So, 3-position
control is made possible.

Dead band

Hysteresis (heat)

ON

Heating
side

OFF

Hysteresis (cool)

Cooling side

PV

Set point

4--5

CHAPTER 4 APPLIED OPERATION

Parameters

Symbol Parameter Name: Mode Description

Control output 1

assignment : Setup

Control output 2

assignment : Setup

Direct/reverse

operation : Setup

Dead band : Level 1 Heating and cooling control

Cooling coefficient : Level 1 Heating and cooling control

MV at reset : Level 2 Manipulated variable when control

MV at PV error : Level 2 Manipulated variable when control

Travel time : Option Position-proportional control

Motor calibration : Option Position-proportional control

Positional-proportional

dead band : Level 1

Open/close

hysteresis : Level 2

Hysteresis (heat) : Level 1 ON/OFF control

Hysteresis (cool) : Level 1 ON/OFF control

PID / ON/OFF : Expansion ON/OFF control

For specifying control method

For specifying control method

For specifying control method

operation is stopped

operation is PV error

Position-proportional control

Position-proportional control

4--6

4.2 Operating Condition Restrictions

4.2 Operating Condition Restrictions

JManipulated vari-

able restrictions

F MV limiter

The upper- and lower-limit values of the manipulated variable can be
restricted by the MV limitter, and the change rate of manipulated vari­able can be restricted by the MV change rate limitter.

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 E5EK-T is out­side of the range of the MV limitter, actual outputs are dependent on
thesetvalueoftheseparameters.

Output (%)

100

0

MV upper limit value

MV lower
limit value

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.

F MV change rate

limiter

Output (%)

100

MV lower limit value

MV upper limit value

Heating
side

0

Set point

Cooling
side

PV

The “MV change rate limitter” parameter (level 2 mode) sets the maxi­mum 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 E5EK-T 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

Switching point

Time

4--7

CHAPTER 4 APPLIED OPERATION

F Limiter operation

conditions

JSet point limiter

Set point Upper-and lower-limit values of the limitter

Scaling (sensor) upper-and lower-limitter values

The limitters are disabled or cannot be set when any of the following
conditions occurs:

• During ON/OFF control

• During AT execution (only by MV change rate limitter)

• During manual operation

• When operation is stopped

• When an error has occurred

• During position-proportional control (manipulated variable limitter

only)

The setting range of the set point is limited by the set point limitter.
The upper- and lower-limit values of this set point limitter are set in
the “set point upper limit” and “set point lower limit” parameters (ex-

pansion mode), respectively. However, note that when the set p oint li­mitter is reset, the set point is forcibly changed to the upper- or lower­limit value of the set point limitter if the set point is out of the limitter
range. Also, when the input type, temperature unit and scaling (sensor)

range are changed, the set point limitter is forcibly reset to the scaling
(sensor) range.

Scaling (sensor) range

Set point limiter

Setting range

Changed to upper
limit value

Input type changed

Changed to
the new up­per limit
value

A

○B×

C

CB

(setting impossible)

(setting possible)

○

Set Point

Set Point

Set Point

Parameters

4--8

Symbol

Parameter Name: Mode Description

MV upper limit : Level 2 For limiting manipulated variable

MV lower limit : Level 2 For limiting manipulated variable

MV change rate limit : Level 2 For limiting manipulated variable

Set point upper limit : Expansion For limiting SP setting

Set point lower limit : Expansion For limiting SP setting

4.3 Ramp Rise Rate Setup Program

4.3 Ramp Rise Rate Setup Program

Chapter 3 described programs that used the “time setup method.” Pro­grams were executed using a combination of SPs and step time values.

The E5EK-T also supports the “ramp rise rate setup method.” By this
method, programs are executed using three program elements: “target
SP”, “rate o f rise” and “soak time.”
To select a ramp rise rate program, set the “Step time/rate of rise pro-

gramming” parameter (expansion mode) to “

Target SP

Time unit of ramp rate

:rateofrise.”

Soak time

Rate of rise

Step

NN+1

Ramp step Soak step

Set each of the above p rogram elements i n the “target SP 0 to 7”, “rate
of rise 0 to 7” and “soak time 0 to 7” parameters.

In a ramp rise rate program, parameters are set to two steps as shown

in the figure above. The following figure shows the relationship be­tween the pro gram and parameters.

Target SP 1

Soak time 0 Soak time 1 Soak time 2

Target SP 0

Target SP 2

Step

Parameter

012345

Target SP 0 Target SP 1 Target SP 2

Rate of rise 0 Rate of rise 1 Rate of rise 2

Soak time 0 Soak time 1 Soak time 2

4--9

CHAPTER 4 APPLIED OPERATION

F Relationship with

the number of
steps

F When the rate of

rise is set to “0”

When the number of steps is set to an odd number, the final soak time
cannot be set. For example, if we set the “number of steps” parameter
to “7”, the “soak time 3” parameter cannot be set even though the “tar­get SP 3” and “rate of rise 3” parameters can be set.

Accordingly, when the number of steps are set to an even number, the
final step is a soak step. When it is set to an odd number, the final step
is a ramp step.

Number of steps = even number Number of steps = odd number

When “rate of rise 0 to 7” parameter is set to “0”, the ramp step is
skipped and the soak step appears to be continuous.

Step N is skipped.

Step

NN-1

Ramp step Soak step

N+1

Soak step

4--10

4.3 Ramp Rise Rate Setup Program

JRunning the ramp

rise rate setup
program

F Changing

parameters

Ramp rise rate setup programs take the PV at start of program op era­tion as the SP (PV start) when they are started.

When the rate of rise is changed midway during operation, the SP rate
of rise and the step time in the ramp cycle both change.

After change

Before
change

Switching point

Before change

After change

• In the above figure, increasing the rate of rise results in a shorter tar­get step time. Likewise, when the SP is changed, the step time of the
ramp cycle also changes.

• When the soak time is changed, only the step time in the soak cycle
changes.

Step N Step N+1

Step N Step N+1

Time

4--11

CHAPTER 4 APPLIED OPERATION

JProgram example

F Program

structure

F How the program

works

Let’s describe a typical example of a ramp rise rate setup program. In
an actual program, set the parameters to match the application.

100

10

Step 0 Step 1 Step 2 Step 3

30 60 90 120

Target SP 0 : 100

Rate of rise 0 : 3

Soak time 0 : 0.30

“Number of steps” = 4, “Time unit of ramp rate” = minutes, “PV start” = 10

Target SP 1 : 10

Rate of rise 1 : 3

Soak time 1 : 0.30

In a program comprising four steps, steps 0 and 1 follow the settings of

the “target SP 0”, “rate of rise 0” and “soak time 0” parameters. Steps 2
and 3 follow the settings of the “target SP 1”, “rate of rise 1” and “soak
time 1” parameters.

(1) As the program starts at PV (PV start), the program starts opera-

tion from “10” in this example.

(2) As the rate of rise is set to “3”, the Present SP takes 30 minutes

(100-10/3=30) to reach the target SP value “100” in step 0. If the
PV is “40” when the program is started, this time then becomes 20
minutes using the same formula.

(3) In step 1, the Present SP does not change, and the step time is the

value set to the “soak time 0” parameter (in this example, “30 min-

utes”).

(4) In step2, the Present SP changes according to the value of “rate of

rise 1” parameter from that of “target SP 0” parameter to that of
“target SP 1” parameter It takes 30 minutes in this example.

(5) In step 3, the Present SP does not change, and the step time is the

value set to the “soak time 1” parameter (in this example, “30 min­utes”).

Parameters

Operation
at Input Error

4--12

Symbol Parameter Name: Mode Description

Step time/Rate of rise programming : Expansion Ramp rise rate

: Target SP 0 to 3 : Program Ramp rise rate

:

Rate of rise 0 to 3 : Program Ramp rise rate

:

Soak time 0 to 3 : Program Ramp rise rate

: : to

By ramp rise rate setup method, starting at input error, the program start step is
the “step 1”.

4.4 Program Operation

4.4 Program Operation

JHold/advance

• Steps in currently executing programs can be forcibly stopped (Hold)
and advanced (Advance).

• Hold and Advance operation is according to the following procedure:

Run in level 0 mode

Check step No.

Hold?

Y

Hold = ON

Continue

End of hold?

End

Hold = OFF

Advance

Y

N

N

Advance = ON

Continue

End of advance

End

End: To program operation

• Execute hold/advance operation while making sure the step No. in the
“step No. monitor” parameter (level 0 mode).

• When the “hold” parameter (level 0 mode) is set to “ :ON”,step
time counting is paused (held), and the HOLD LED lights. [

]and
the SP appear alternately on the No.2 display when in the “PV/Pres­ent SP” parameter.

• Hold is canceled time counting is restarted by one of the following
conditions: “hold” parameter = “

:OFF”,Run,Reset,Endopera-

tion using advance instruction

• Each time that “advance” parameter (level 0 mode) is set to “ :
ON”, the pro gram advances one step. With each step advance, the
“Advance” parameter setting returns to “

: O FF”.

• If the advance function is executed with the program in a hold state,
the hold state is continued in the next step.

4--13

CHAPTER 4 APPLIED OPERATION

JPattern operation

F Repeatin g execu-

tion of the same
pattern

• To repeatedly execute the same pattern, set the number of times that
the pattern is to be executed in the “pattern execution count” param­eter (program mode).

• The pattern execution count can be set up to 9999 (times). (Default is
“0”.)

• Patterns for which the “pattern execution count” parameter is set to
“0” cannot be executed.

• The count of the currently executing pattern in the program can be
verified in the “pattern execution count monitor” parameter (level 0
mode). “0” is indicated in this parameter when the controller of reset
or in a standby state.

F Executing all

patterns

• To execute all preset patterns in order from pattern 0, set the “run all
enable” parameter (expansion mode) to “
OFF”.)

Pattern 0 Pattern 1 Pattern 2

• When a power interruption occurs during run all execution, if the
“operation at power ON” parameter (expansion mode) is set to “
Continue”, the currently executing pattern No. is held in memory.
When power is restored, program operation resumes from the pattern
that was being executed when the power was interrupted. (For details
on operation at power ON, see page 4-19.)

• Patterns whose “pattern execution count” is set to “0” are skipped.

:ON”.(Default“ :

Time

:

4--14

Pattern 0 Pattern 1 Pattern 3

“pattern execution count” of pattern 2 is set to 0

Time

4.4 Program Operation

Parameters

Symbol Parameter Name: Mode Description

Hold : Level 0 Pauses program execution.

Advance : Level 0 Advances the program one step.

Pattern execution count : Program

Run all :Expansion Executes all patterns.

Repeatedly executes current
pattern.

About Reset

• A reset cancels a hold state.

• When the controller is reset during run all execution, the program returns to

step 0 of the currently executing pattern.

4--15

CHAPTER 4 APPLIED OPERATION

4.5 Wait Operation

• “Wait” is the operation of not advancing the program steps and wait­ing for the PV to enter the preset wait width at the end of each step.
During wait operation, the “WAIT” LED lights.

• As the PV is smaller than “SP - wait width” at the end of the rising
step in the above figure, control monitoring is stopped, and the con­trol waits for PV to reach “SP - wait width” before the step is up­dated.

• In the case of a falling step, the control waits for PV to reach “SP +
wait width.”

• Set the wait width in the “wait width” parameter (expansion mode)
within the range 0 to 9999 (EU). (Default is “0”.)

• Setting the “wait width” to “0” disables wait operation.

Wait width

SP

PV

During wait

Counting stop Step updated Time

Wait width

Parameters

4--16

Symbol Parameter Name: Mode Description

Wait width : Expansion Wait operation

4.6 Program output

• The E5EK-T outputs the following signals according to how far the
program has elapsed:

• These functions can be used only when they have been assigned as out­puts.

4.6 Program output

Time signal 1/2
Program end
Stage output

JTime signal

• Two types of time signals can be set to each pattern.

ON time

Time signal output

OFF time

• There are two timers for time signals: ON time timer and OFF time
timer. These times are counted from the beginning of the step.

• Output is ON from the ON time elapsed point up to the OFF time
elapsed point.

• Set the step at which to output the time signal in the “time signal 1/2
enabled step” parameter (program mode). (Default is “0: step 0.”)

• Set the ON/OFF timing in the “time signal 1/2 ON time” and “time
signal OFF time” parameters (program mode).

Time

F About ON

conditions

About Pattern
Elapsing Time

• When the OFF time is set shorter than the ON time, output is ON
until a reset from the ON time elapsed point onwards or at start of
the next pattern.

• Output does not turn ON when ON and OFF times are set the same.

• When step advance is executed during execution of the time signal

enabled step, the controller judges that the time equivalent to the en­abled step has elapsed. For example, in the above figure, output is ON
from the start of the following step up to the OFF time elapsed point.

You can verify the pattern elapsing time in the “pattern elapsing time” parame­ter (level 0 mode). During repeated execution of patterns or run all execution, the
program is counting for each pattern.
If the count exceeds the monitor range (99 hours:59 minutes or 99 minutes:59
seconds), “99.59” is displayed flashing.
During Hold, time counting is paused.
Executing Advance, the skipped step time is counted.

4--17

CHAPTER 4 APPLIED OPERATION

JProgram status

F Program end

F Stage output

• One-second pulse signal is output after the final step is completed.

Time

Program end output

Final step

1s

• One-second pulse signal is output at the beginning of each step.

Parameters

1s

Stage output

Symbol Parameter Name: Mode Description

:

Time signal:set step : Program Time signal

Time signal:ON time : Program Time signal

:
:

Time signal:ON time : Program Time signal

:

Control output:assignment : Setup Program status

:

Auxiliary output:assignment : Setup Program status

: : to

Time

4--18

4.7 Setting Running Conditions

4.7 Setting Running Conditions

JOperation at

power ON

• You can select from one of the following operations at power ON:

Continue,Reset,Run,Manual

• If you select “Continue,” operation is started from the state that was
active when power was interrupted.

• If you select “Reset,” the controller is reset.

• If you select “Run,” normal program operation is started.

• If you select “Manual,” the controller enters the manual mode.

• The following table shows the relationship between operation at pow-

er ON and the operation details that are stored to memory when a
power interruption occurs.

Continue Reset Run Manual

Pattern No. f f f f
Step No. f - - f
Pattern elapsing time f - - f
Pattern execution count f - - f
Hold status f - - f
Auto/Manual f f f -
Run/Reset f - - f
MV a t reset *1 f - - f
Manual MV *2 f f f f

*1 During auto mode at power interruption on a standard type controller

*2 During manual mode at power interruption on a standard type controller

• Set the desired operation in the “operation at power ON” parameter
(expansion mode). Default is [

:Continue].

4--19

CHAPTER 4 APPLIED OPERATION

JStarting the

program run

F PV start

F Standby

operation

JEnd condition

• When the program is configured by the time setup method, a ramp­priority “PV start” can be selected as one of the run start conditions.
If you select “PV start” in the “PV start” parameter (expansion
mode), program operation is started from the position of the SP that
first matches the PV when program run is started. If the SP does not
match the PV, the program run is started from the beginning.

SP

Step 0 Step 1 Step 2 Step 3

Disabled time

PV

Start point

Time

• After the run instruction, the controller is reset until the standby
time elapses.

• Set the standby time in the “standby time” parameter (level 2 mode)
within the range 0.00 to 99.59 (hours:minutes). Defaults is “0.00”.

• After end of operation, the controller normally is reset. However, con ­trol can be continued on the SP of the final step by setting the “end
condition” parameter (expansion mode). If the “end condition” is set,
the SP of the final step and [
display.

• When the “number of steps” parameter is changed after operation has
ended, the controller state does not change state. However, if control
with respect to the SP is continued, the SP switches to the new value
of the final step.

] appears alternately on the No.2

Parameters

4--20

Symbol Parameter Name: Mode Description

Operation at power ON : Expansion

PV start : Expansion Start of program run

Standby time : Level 2 Start of p rogram run

End condition : Expansion Operation end program run

Operation when power is
turned ON

4.8 How to Use Event Input

• When using event input, mount the option unit (E53-AKB).

• Switching by event input is not possible on the menu display.

• Switch event inputs ON and OFF while controller power is ON.

4.8 How to Use Event Input

JInput

assignments

• You can choose from the following six event input functions:

Run/Reset
Remote/Local
Auto/Manual
Hold/Hold cancel
Advance
Pattern select

• Event input ON/OFF judgment is carried out on inputs of 200 ms
minimum.

• When event inputs are used as program advance input, the program
step is advanced at the rising (OFF

→ON) edge of the input signal.

When event inputs are used as run/reset input, program operation is
stopped (reset) at the rising (OFF
program operation is started (run) at the falling (ON

→ON) edge of the input signal, and

→OFF) edge.

Other signals are accepted at all times.

• Set event input assignments in the “event input assignments 1 and 2”
parameters (option mode).

• The following table shows the relationship between the settings and
functions of the “event input assignment 1 to 2” parameters.

Setting Function

Event input disabled

OFF→ON: Reset /ON→OFF: Run

ON: Remote /OFF: Local

ON: Manual /OFF: Auto

ON: Hold /OFF: Hold cancel

Execute at OFF→ON

Specify by combination oftwo inputs (*1).

*1 The following table shows the relationship between pattern select No. and

pattern No.

Pattern No. 0 1 2 3

Pattern select 0 f f
Pattern select 1 f f

4--21

CHAPTER 4 APPLIED OPERATION

JDetailed

description of
input functions

F Run /Reset

Reset Run

F Auto/Manual

F Hold/Hold cancel

F Advan ce

Advance

• There is no order of priority in event input, key operations and com­munications command setup. However, remote/local, auto/manual,
hold/hold cancel or pattern selection 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 and communications commands.

• Program operation is stopped (reset) at the rising (ON→ON) edge of
the event input signal, and the RST LED lights. Program operation is
started (run) at the falling (ON→OFF) edge of the event input signal.

• When event input is set to “ON”, the controller is switched to manual
operation, and the “MANU” LED lights.

• This function is enabled only during program operation.

• The program is paused (Hold) when the event input is ON, and the

“HOLD” LED lights. Holds continue until the state of the event input
changes to O FF.

• This function is enabled only during program operation.

• Program steps are advanced at the ri sing (OFF→ON) edge of the

event input signal. Accordingly, be sure to set event input OFF before
you use this function.

F Pattern select

Parameters

• This function is enabled only when the program is reset.

• Patterns are selected using a combination of pattern select 0 and 1.

• Pattern select 0 and 1 inputs that are not assigned are normally

treated as OFF. For example, when only pattern select 1 is assigned,
pattern select inputs 0 and 1 are treated as OFF, so patterns 0 and 1
are patterns targeted for switching.

Symbol Parameter Name: Mode Description

: Event input assignments 1 to 2: Option

: : to

Event input functions

4--22

4.9 How to Use the Heater Burnout Alarm

4.9 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 alarm” to control outputs 1/2 or auxiliary outputs 1/2.

JHeater burnout

detection

To E5EK-T
CT terminal

CT

Heater wire

F HBA

latch/release

• Heater burnout detection works as follows:

(1) Connect the current transformer (CT) to terminal Nos.15 and 17,

and insert the heater lead through the CT hole.

(2) When current flows through this lead, the current transformer gen-

erates AC current proportional to the current value. The E5EK-T
measures this AC current to calculate the current flowing to the
heater.

(3) If the heater is burned out, the current measured at the current

transformer decreases. This value is compared wi th 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” pa­rameter. To verify the current value of the current transformer, use
the “heater current monitor” parameter.

• When you are not using the HBA function, set the “heater burnout
alarm” parameter to “0.0 (disabled)”.

• When the HBA latch function is set to “ON”, the heater burnout
alarm is held until either of the following measures is taken:

a Set the heater burnout set value to “0.0A” (default).
b R eset 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”.

JOperating

conditions

• Turn the heater power supply ON at the same time as or before turn­ing the E5EK-T power supply ON. If the heater power supply is
turned ON after turning the E5EK-T 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.)

• The heater burnout alarm is detected only if the control output is
continuously ON for 190 ms minimum.

• The rated current value may sometimes differ slightly from the actual
current value flowing to the heater. Verify the current value in an ac­tual operating state in the “heater current monitor” parameter.

• If there is little difference between the current in a normal state and
the current in a burnout state, detection may become unstable. On a
heater of current 10.0 A or less, maintain a difference of 1.0 A mini­mum. On a heater of current 10.0 A minimum, maintain a difference
of 2.5 A mini mum.

4--23

CHAPTER 4 APPLIED OPERATION

• The heater burnout alarm function cannot be used when the heater is
controlled by a phase control system or by a cycle control system.
Also, the heater burnout alarm function cannot be applied on 3-phase
heaters.

To detect heater burnout on a 3-phase heater, use the K2CU-FjjA-jGS (with
gate input terminal). (For details, see the respective product catalog.)

JHow to calculate

the heater burn­out set value

• Calculate the set value by the following formula:

Set value =

• Setthecurrentvalueatburnoutwhentwoor moreheatersarecon­nected to the CT to the value at the time that the heater having the
smaller(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
burnout ≧ 1A
When resultant current is less than 1 A, detection is unstable.

Heater of current 10.0 A minimum
Current value at normal operation - current value at heater
burnout ≧ 2.5 A
When resultant current is less than 2.5 A, detection is unstable.

• Thesetvaluecanbesetwithintherange0.1to49.9A.Heaterburn­out is not detected when the setting is “0.0” or “50.0”. When the set­ting is “0.0”, the heater burnout 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 minimum, [
rent monitor” parameter.

(current value at normal operation + current value at burnout)

2

] is displayed in the “heater cur-

4--24

4.9 How to Use the Heater Burnout Alarm

F Examples of use

CT

17

1KWx3

CT

17

15

15

Control output

Control output

Heater

1KW

E5EK-T

Heater

E5EK-T

Example 1 : when using a 200 VAC, 1 kW heater

Current at normal operation =

1000

200

Current at heater burnout = 0A

AC200V

Set value =

5+0

2

=2.5A

(current at normal operation-current at heater burnout

=5-0=5A(≧ 1A)

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

1000

200

1000

200

AC200V

Current at normal operation =

Current at burnout of one heater =

Set value =

15+10

2

= 12.5A

(current at normal operation-current at heater burnout

=15-10=5A(≧ 2.5A)

=5A(< 10A)

×3 = 15A (≧ 10A )

×2 = 10A

Parameters

Symbol Parameter Name: Mode Description

Heater current monitor : Level 1 Heater current value monitor

Heater burnout detection : Level 1 Heater burnout detection

Heater burnout latch : Option Heater burnout detection alarm latch

4--25

CHAPTER 4 APPLIED OPERATION

4.10 LBA

• The LBA (Loop Break Alarm) function can be used only on standard
type controllers.

• The LBA function can be used only when i t is assigned as an output.
Also, the LBA function does not work when a memory error or A/D
convertererrorresults.

• LBA (Loop Break Alarm) is a function for judging that an error has
occurred somewhere on the control loop and for 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 L BA detection

time

F L BA detection

width

F L BA detection

example

• Normally, when output is set to maximum or minimum, the process
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 detection time.”

• LBA operation sometimes becomes unstable when the process value
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.

• The following example describes what happens when a heater burn­out occurs at maximum output.

LBA detection time

PV

LBA detection time

Heater burnout

LBA detection width

Output

Time

LBA=ON

4--26

• LBA judgment is carried out at each LBA detection time from the
point of maximum output. In the above figure, the process value (PV)
is changing greatly at the 1st judgment time band, so LBA remains
OFF.

• At the 2nd judgment time band, the process value increases as indi­cated by the broken line if 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 time band and the LBA output becomes ON.

4.10 LBA

F Setting the LBA

detection time

F Determining the

LBA detection
time

• The LBA detection time is automatically set by auto-tuning (except in
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).

• Calculate the LBA detection time as follows:

(1) Set output to maximum.

(2) Measurethetimeittakesfortheinputchangewidthtoreachthe

LBA detection width (factory setting: 0.2% FS).

Measurement time Tm

PV

0.2%FS

Output

Time

LBA detection time = Tm x 2

(3) Take a value twice that of the measurement time as the LBA detec-

tion time.

Parameters

Symbol Parameter Name: Mode Description

AT execute/Cancel : Level 1 For automatic setting of LBA

detection time

LBA detection time : Level 2 For setting LBA detection time

LBA detection width : Expansion For changing LBA detection

width

4--27

CHAPTER 4 APPLIED OPERATION

4.11 How to Use Transfer Output

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

F Transfer ou t pu t

type

F Transfer ou t pu t

scaling

Transfer output Transfer output

• You can select the following five data items in the “transfer output
type” parameter (option mode) as the transfer outputs:

Present SP (default), Process value, Manipulated variable (heat),

Manipulated variable (cool), Valve opening
However, note that heating/cooling side manipulated variables can be
output only on standard type controllers, and valve opening can be
output on position-proportional type controllers.

• If the output assignment is changed when either the “manipulated
variable (heat)” or “manipulated variable (cool)” parameter is se­lected, the factory setting “set point” is returned to.

• Thesetransferoutputscanbescaled according to the settings of the
“transfer output upper limit” and “transfer output lower limit” pa­rameters 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 specified for each data item. The following example shows scal­ing of the heating side manipulated variable.

20

(mA)

Reverse scaling Enlarged scale

(mA)

20

Parameters

4--28

4

Transfer output
upper limit: 0

Symbol Parameter Name: Mode Description

Transfer
output lower
limit: 100

Transfer output type : Option Transfer output designation

Transfer output upper limit : Option Transfer output scaling

Transfer output lower limit : Option Transfer output scaling

Manipu­lated
variable
(%)

4

0

Transfer
output lower
limit: 10

Transfer
output upper
limit: 80

100

Manipulated
variable (%)

CHAPTER5

CHAPTER 5

PARAMETERS

This chapter describes the parameters of the E5EK-T.
Use this chapter as a reference guide.

CHAPTER 5 PARAMETERS

ConventionsUsedinthisChapter 5-2............

Protect Mode 5-3...............................

Manual Mode 5-5..............................

Level 0 Mode 5-6...............................

Program Mode 5-11.............................

Level 1 Mode 5-17...............................

Level 2 Mode 5-24...............................

Setup Mode 5-30................................

Expansion Mode 5-38............................

Option Mode 5-46...............................

Calibration Mode 5-52...........................

5--1

CHAPTER 5 PARAMETERS

Conventions Used in this Chapter

JThe meaning of icons used in this chapter

Describesthefunctionsoftheparameter.

Function

Describes the range and defaults of the parameter setting.

Setting

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 E5EK-T or optional units that support the parameter being
described.

Model

JAbout parameter display

On the E5EK-T controller, only parameters that can be used are displayed. These parameters are
displayed only when the “Conditions of Use” on the right of the paramete r heading are satisfie d .
However, note that the settings of protected parameters are still valid, and are not displayed
regardless of the conditions of use.

AT Execute/cancel

Conditions of Use
The controller must
be in operation.

JAbout the Order in Which Parameters Described in This Chapter

Parameters are described mode by mode
The first page of each mode lists the parameters available in that mode. The parameter
names in these contents are listed in the order that they are displayed on the controller.

5--2

Mod

Protect Mode

• The protect function restricts key use to prevent unwanted key operation. Before

changing parameters in this mode, first make sure that protecting the keys will
not cause any problems in operation.

• To select this mode, press the

RUN/RST

minimum. To exit this mode, press the
again for 1 second minimum.

• The following table shows the parameters supported in this mode and the page
where the parameter is described.

and keys simultaneously for 1 second

RUN/RST

and keys simultaneously

Function

Setting

Symbol

Parameter Name Page

Security 5-3
Key protect 5-4

Security

• This parameter specifies which parameters are protected. Note that the protect

mode and manual mode cannot be pr otected.

• Only the modes indicated by the “F” mark in the table below can be selected on
the menu display. For example, when this parameter is set to “3”, only levels 0 and
1 and the program mode can be selected.

e

Calibration F
Option F F
Expansion F F
Setup F F
Level 2 F F F
Level 1 F F F F
Program F F F F F
Level 0 F F F F F F *1

0 1 2 3 4 5 6

*1 The “PV/Present SP” parameter is only displayed.

Setting value

• When this parameter is set to “0”, the protection function is disabled.

• When this parameter is set to “5”, only the parameters in the level 0 mode can be

used, and the menu display is not selected.

• When this parameter is set to “6”, “PV/Present SP” parameter can only be dis­played. (The set point cannot be changed.)

• Default is “1”. (Only the calibration mode is protected.)

F Related description

3.6 Protect Mode (page 3-19)

See

5--3

CHAPTER 5 PARAMETERS

Protect Mode

Key protect

• Disables key operation of the RUN/RESET or AUTO/MANUAL. For example, if
AUTO/MANUAL key operation is disabled (by simultaneously pressing the

Function

and keys) in the “key protect” parameter (protect mode) during automatic
operation, manual operation is no longer possible.

• The following table shows the relationship between set values and protected keys.

Setting

See

Set value

1 No keys are protected.

2 AUTO/MANUAL key operation cannot be selected.

3 “RUN/RST” key cannot be selected.

4

RUN/RST

Both the AUTO/MANUAL and RUN/RESET key operations
cannot be selected.

• Default is “0” (all keys can be operated).

F Related description

3.6 Protect Mode (page 3-19)

Description

5--4

Function

Manual Mode

• In this mode, manual operation is 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. To change the manipulated variable,
use the
ing is canceled.

• To select this mode when in the level 0 to 2 modes, press the

simultaneously for 1 second minimum. To exit this mode, press the and
keys simultaneously again 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 or the valve opening for manual operation. On a stan-

dard type controller, when you press the or keys, the manipulated variable
is changed. On a position-proportional type controller, when you press the
the open side becomes ON, and when you press the
ON.

• On standard type controllers, the process value is displayed on the No.1 display
and the manipulated variable is displayed on the No.2 display.

• On position-proportional controllers, the process value is displayed on the No.1

display, and the valve opening is displayed on the No.2 display when the poten­tiometer is connected.

• On standard type controllers, the manual MV is held when the power is inter-

rupted.

or keys. If this mode is switched to during auto-tuning, auto-tun-

and keys

key,

key, the close side becomes

• Standard type

Control Method Setting Range

Setting

Standard -5.0 to 105.0 % 0.0
Heating and cooling -105.0 to 105.0 % 0.0

• Position-proportional type

Control Method

Position-proportional -10.0 to 110.0 %

F Related description

3.8 Adjusting Control Operation/Manual operation (page 3-22)

See

Unit Default

Monitor Range Unit

5--5

CHAPTER 5 PARAMETERS

Level 0 Mode

• The parameters in this mode can be used only when the “security” parameter
(protect mode) is set to “0” to “5”. Only the “PV/Present SP” parameter can be
used when the “security” parameter is set to “6”.

• The parameters in this mode comprise step operation parameters and parameters

required for monitoring program operating states.

• To select this mode, press the
to the menu display. If you select [
minimum, the controller enters the level 0 mode.

• To select parameters in this mode, press the
tings, use the

• The following table shows the parameters supported in the level 0 mode and the
page where the parameter is described.

key for 1 second minimum. The display changes

]thenpressthe key for 1 second

key. To change parameter set-

or keys.

Function

Symbol Parameter Name

PV/Present SP 5-6

Pattern No. 5-7

Step No. monitor 5-7

Hold 5-8

Advance 5-8

Standby time monitor 5-9

Pattern elapsing time 5-9

Pattern execution count monitor 5-9

MV monitor (heat) 5-10

MV monitor (cool) 5-10

Valve opening monitor 5-10

Page

PV/Present SP

• The process value is displayed on the No.1 display, and the Present SP is displayed
on the No.2 display.

• The decimal point position is dependent on the selected sensor during tempera-

tures input and on the results of scaling during analog input.

Process Value

Monitor

Present SP

• During temperature input, the range of the currently selected sensor is taken as
the PV monitor range.

F Related parameters

“Input type” “Scaling upper limit” “Scaling lower limit” “Decimal point” (set u p
mode)

See

“Set point upper limit” “Set point lower limit” (expansion mode)

5--6

Monitor Range

Scaling lower limit -10%FS to scaling upper limit +10%FS

Set point lower limit to set point upper limit

Unit

EU
EU

Function

Setting

See

Level 0 Mode

Pattern No.

• This parameter can be set only when the controller is reset.

• Displays the execution pattern during program operation, and the set pattern

after the controller is reset.

• This parameter can also be used in the program mode.

Setting Range Unit Default

0to3 None 0

F Related description

3.5 Setting Patterns (page 3-14)

F Related parameters

All parameters in the program mode

Function

Monitor

See

Step No. monitor

• Monitors the current step No. (This parameter is reset to “0” when the controller
is reset.)

Monitor Range

0 to Number of steps-1 None

F Related description

4.4 Program Operation (page 4-13)

F Related parameters

“Hold” “Advance” (level 0 mode)

Unit

5--7

CHAPTER 5 PARAMETERS

Level 0 Mode

Hold

• This parameter can only be used for monitoring when the controller is reset.

• Pauses (holds) or cancels program operation.

Function

• When the event input to which “hold/hold cancel” is assigned is ON, [
displayed, and when OFF [

• In addition to the setting of this parameter, hold is canceled by the following
conditions:

](hold)is

] (hold cancel) is displayed.

Setting

See

Function

Example
of use

Setting Range

OFF : Hold cancel / ON:Hold

Default

F Related description

4.4 Program Operation (page 4-13)

4.8 How to Use Event Input (page 4-21)

F Related parameters

“Event input assignment 1 to 2” (option mode)

Advance

• This parameter can only be used for monitoring when the controller is reset.

• Forcibly advances program operation by one step.

• When the event input to which “hold/hold cancel” is assigned is ON, [

(advance) i s displayed.

• Selecting this parameter, it is set to [

• When [

] (ON) is selected, program operation is advanced by one step.

] (OFF).

• After program execution is completed, the setting automatically returns to [

• Hold is also continued after the program step is advanced when the program is

executed in a hold state.

]

].

F Related description

4.4 Program Operation (page 4-13)

4.8 How to Use Event Input (page 4-21)

See

F Related parameters

“Event input assignment 1 to 2” (option mode)

5--8

Level 0 Mode

Function

Monitor

See

Standby time monitor

Conditions of Use

The controller must be in a standby
state.

• Displays the remaining standby time. (This time is not displayed when the con-

troller is reset.)

Monitor Range

0.00 to 99.59 Hour, minute

Unit

F Related description

4.7 Setting Running Conditions (page 4-19)

F Related parameter

“Standby time” (level 2 mode)

Pattern elapsin g time

Function

Monitor

Function

Monitor

• Displays the time that has elapsed since the start of the pattern. When a pattern is
repeatedly executed or all patterns are executed, the time counting restarts at the
top of each pattern.

Monitor Range

0.00 to 99.59 Program time unit

Unit

When the time exceeds “99.59”, “99.59” blinks on the display.

Pattern execution count monitor

• Displays the number of times that the current pattern has been executed. “0” is
displayed when the controller is reset or when the controller is in a standby state.

Monitor Range

0 to pattern execution count Times

F Related parameter

“Pattern execution count” (program mode)

Unit

See

5--9

CHAPTER 5 PARAMETERS

Level 0 Mode

Function

Monitor

MV monitor (heat)

Conditions of Use

The control must be standard control or
heating 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 monitored in the “MV

monitor (heat)” parameter.

• The “MV monitor (cool)” parameter can be used only during heating and cooling
control.

• MV monitor (heat)

Control

Standard -5.0 to 105.0 %
Heating and cooling 0.0 to 105.0 %

Monitor Range

• MV monitor (cool)

Control

Heating and cooling 0.0 to 105.0 %

Monitor Range

Unit

Unit

Model

Function

Monitor

See

E5EK-TAA2

Valve opening monitor

Conditions of Use

The control must be position-propor­tional control.

• Monitors the valve opening during position-proportional control.

Monitor Range

-10.0 to +110.0 %

Unit

“----” is displayed when a potentiometer is not connected.

F Related description

4.1 Selecting the Control Method/Position-proportional control (page 4-3)

E5EK-TPRR2

Model

5--10