Omron E5ZD User manual

Cat. No. Z042-E1-4
Multipoint Temperature Controller
E5ZD

E5ZD
Multipoint Temperature Controller
Operation Manual
Revised November 1996

iv

v
Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed
the information provided with them. Failure to heed precautions can result in injury to people or dam-
age to the product.
DANGER Indicates information that, if not heeded, is likely to result in loss of life or serious
injury.
WARNING Indicates information that, if not heeded, could possibly result in loss of life or
serious injury.
Caution Indicates information that, if not heeded, could result in relative serious or minor
injury, damage to the product, or faulty operation.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers
to an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for any-
thing else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Note Indicates information of particular interest for efficient and convenient operation
of the product.
1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 1990
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis-
sion of OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly striving to improve its high–quality products, the information contained in this manual is subject to change
without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa-
tion contained in this publication.

vi

TABLE OF CONTENTS
vii
SECTION 1
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 Product Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Features 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Models Available 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Precautions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
Preparations for Operation 9. . . . . . . . . . . . . . . . . . . . . . . .
2-1 E5ZD-4jjj-E/-6jjj-E Hardware 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 E5ZD-8jjj-E Hardware 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 E5ZD-8HjjM-E Hardware 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
Basic Operation 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Overview 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Communications 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Memory Banks 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Parameter Backup 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 HB and HS Alarms 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Fuzzy Control 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7 Features 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8 Adjusting Fuzzy Parameters 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Commands and Responses 67. . . . . . . . . . . . . . . . . . . . . . . .
4-1 Overview 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Temperature Control Commands (All Controllers) 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Fuzzy Constant Commands (Fuzzy-logic Controllers Only) 109. . . . . . . . . . . . . . . . . . . . . .
4-4 Global Read and Control Operations 111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Global Write Operations 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
Transmission Times 119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Writing Times 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Reading Times 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6
Troubleshooting 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Troubleshooting Lists 124. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Loop-Back Communications Test 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Specifications 129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Parameter Defaults, Setting Ranges, and Commands 133. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C End Codes 135. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Error Codes 137. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E ASCII Codes 139. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index 141. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History 143. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ix
About this Manual:
This manual describes the operation of the E5ZD Multipoint Temperature Controller and includes the sec-
tions described below. The Current Transformer (E54-CT1 or E54-CT3) is not provided with the E5ZD
Multipoint Temperature Controller. Purchase current transformers as required for heater burnout detec-
tion. The Terminal Block, I/O Block Unit, and cable are not provided with the E5ZD-8HjjM-E. For de-
tailed operating commands of the accessories, refer to their operation manuals.
Please read this manual completely and be sure you understand the information provided before attempt-
ing to operate the E5ZD Multipoint Temperature Controller.
Section 1 introduces the E5ZD, describing the various models available and the basic type of system
application.
Section 2 provides the steps necessary to prepare for operation, including switch settings and wiring
specifications, and also describes the components of the E5ZD.
Section 3 describes the basic operations used to control the E5ZD, including the communications
formats necessary for communication from a host computer or PC.
Section 4 describes each of the commands used to control E5ZD operation and the responses re-
turned by the E5ZD to indicate execution status.
Section 5 shows how to compute the time required to write data and have that data become effective
in operation, and the time required to read data.
Section 6 describes basic troubleshooting via lists of the possible causes and solutions to some
common operational problems.
Appendix A provides the technical specifications of the E5ZD and the optional Current Transformers
which are used for HB and HS alarms.
Appendix B provides lists of commands by function, showing the header codes, factory-set default
values, and setting limits.
Appendix C provides a short list of the end codes returned with E5ZD responses to indicate execu-
tion status.
Appendix D provides a table of the error code used in E5ZD communications.
Appendix E provides a table of the ASCII code used in E5ZD communications.
WARNING Failure to read and understand the information provided in this manual may result in
personal injury or death, damage to the product, or product failure. Please read each
section in its entirety and be sure you understand the information provided in the section
and related sections before attempting any of the procedures or operations given.
!

1
SECTION 1
Introduction
This section describes the basic features of the E5ZD Multipoint Temperature Controller, including its position in a control
system, and provides basic warnings for handling, installing, and operation.
1-1 Product Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Features 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Models Available 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1 Sensors and Temperature Ranges 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2 Current Transformer 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Precautions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-1 Handling Precautions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-2 Installation Precautions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-3 Operating Precautions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2
1-1 Product Information
The E5ZD Multipoint Temperature Controller processes temperature data ob-
tained from sensors and forms a part of a control system.
The Current Transformer (E54-CT1 or E54-CT3) is not provided with the E5ZD
Multipoint Temperature Controller. Purchase current transformers as required
for heater burnout detection.
The Terminal Block, I/O Block Unit, and cable are not provided with the
E5ZD-8HjjM-E.
1-2 Features
The basic features of the E5ZD are outlined below. Refer to relevant sections of
this manual for details.
Multipoint PID Control The E5ZD provides four-, six- or eight-point control via a single control-panel-
mountable board. PID with feed-forward circuitry is used as the control method.
Host-computer Management The E5ZD does not have setting keys or a display, but is operated through com-
mands downloaded from a host computer.
Removable Terminal Blocks E5ZD-4/-6/-8jjj-E Units use sensor input terminal blocks with detachable
upper portions that can be mounted to the Temperature Control Unit after the
sensors have been connected.
E5ZD-8HjjM-E Units can be connected by cable to a remote terminal block
that handles sensor inputs, CT inputs, and memory bank designation inputs.
Similarly, control outputs and alarm outputs can use an I/O Relay Terminal.
High-speed Processing The E5ZD features a maximum 0.5-second sampling time and a 16-bit CPU to
reduce processing time.
Serial Communications The E5ZD is available with RS-232C, RS-422, or RS-485 communications. With
RS-422 or RS-485 communications, a single host computer can be used to con-
trol up to 16 E5ZDs.
Memory Banks For each controlled point, there is a memory bank that consists of the various set
values such as control temperatures and PID constants. This enables you to
change a group of settings with a single operation. There are eight memory
banks, and you can use either communications or switch settings to designate
the one to be used.
Heater-burnout Detection The E5ZD can be ordered with a detector for circuit breaks in the heater. If a
break is detected, the HB alarm output is turned ON.
Other Errors Detected SSR errors and welded relay contacts can also be detected. These conditions
turn ON an HS alarm output.
Memory Protection All settings for temperature control, including PID values, can be transferred to
nonvolatile memory to provide protection against power interruptions.
Diagnostic Functions Open circuit faults in the sensor circuit, and input temperatures that are too high
or too low can be detected.
Upon the application of power, memory checks are carried out, and AD conver-
ter checks are run to ensure correct temperature measurements. A watchdog
Remote Input Terminal
Blocks
Features Section 1-2

3
timer increases the reliability and safety of the Unit by aiding in the recovery from
CPU errors resulting from noise and other causes.
Hybrid control (i.e., PID with feed-forward circuitry used with fuzzy control) as-
sures excellent response characteristics for external disturbances.
Other Features Manual operation, lamp operation, output variable limit, output deviation limit,
input shift, digital filter, and balanceless-bumpless features assure highly pow-
erful operation.
1-3 Models Available
The E5ZD is available in either 4-point, 6-point or 8-point models, with or without
heater circuit burnout detection, for either thermocouples or platinum resistance
thermometers, and in any of the following serial communications classifications:
RS-232C, RS-422, or RS-485. Either terminal-block or connector connection is
available for certain models and certain models are also available with fuzzy-
logic control. These are summarized in the following tables.
Standard Models
Sensor input
Connection
No. of points Heater-burnout
detection
Communications Thermocouple Resistance
thermometers
Terminal block 4 No RS-232C E5ZD-4A01KJ-E E5ZD-4A01P-E
RS-422 E5ZD-4A02KJ-E E5ZD-4A02P-E
RS-485 E5ZD-4A03KJ-E E5ZD-4A03P-E
Yes RS-232C E5ZD-4H01KJ-E E5ZD-4H01P-E
RS-422 E5ZD-4H02KJ-E E5ZD-4H02P-E
RS-485 E5ZD-4H03KJ-E E5ZD-4H03P-E
6 No RS-232C E5ZD-6A01KJ-E E5ZD-6A01P-E
RS-422 E5ZD-6A02KJ-E E5ZD-6A02P-E
RS-485 E5ZD-6A03KJ-E E5ZD-6A03P-E
Yes RS-232C E5ZD-6H01KJ-E E5ZD-6H01P-E
RS-422 E5ZD-6H02KJ-E E5ZD-6H02P-E
RS-485 E5ZD-6H03KJ-E E5ZD-6H03P-E
8 No RS-232C E5ZD-8A01KJ-E E5ZD-8A01P-E
RS-422 E5ZD-8A02KJ-E E5ZD-8A02P-E
RS-485 E5ZD-8A03KJ-E E5ZD-8A03P-E
Yes RS-232C E5ZD-8H01KJ-E E5ZD-8H01P-E
RS-422 E5ZD-8H02KJ-E E5ZD-8H02P-E
RS-485 E5ZD-8H03KJ-E E5ZD-8H03P-E
Connector 8 Yes RS-422 E5ZD-8H02KJM-E E5ZD-8H02PM-E
RS-485 E5ZD-8H03KJM-E E5ZD-8H03PM-E
Fuzzy Control
(E5ZD-8Fjjjj-E only)
Models Available Section 1-3

4
Fuzzy-logic Models
Sensor input
Connection
No. of points Heater-burnout
detection
Communications Thermocouple Resistance
thermometers
Terminal block 8 No RS-232C E5ZD-8FA01KJ-E E5ZD-8FA01P-E
RS-422 E5ZD-8FA02KJ-E E5ZD-8FA02P-E
RS-485 E5ZD-8FA03KJ-E E5ZD-8FA03P-E
Yes RS-232C E5ZD-8FH01KJ-E E5ZD-8FH01P-E
RS-422 E5ZD-8FH02KJ-E E5ZD-8FH02P-E
RS-485 E5ZD-8FH03KJ-E E5ZD-8FH03P-E
Connector 8 Yes RS-422 E5ZD-8FH02KJM-E E5ZD-8FH02PM-E
RS-485 E5ZD-8FH03KJM-E E5ZD-8FH03PM-E
1-3-1 Sensors and Temperature Ranges
Thermocouple models are compatible with either K (CA) or J (IC) sensors and
can be set in a temperature range of either 0°to 400°C or 0°to 600°C at incre-
ments of 1°C.
Platinum resistance sensor models are compatible with either JPt100 or Pt100
sensors and can be set in a temperature range of either –100.0°to 200.0°C at
increments of 0.1°C, or in a range of 0°to 500°C at increments of 1°C.
All models can also be set in Fahrenheit. The ranges for this would be the Fahr-
enheit conversions of the above ranges. Setting accuracy would be either 1°F or
0.1°F.
1-3-2 Current Transformer
Either of the following models can be used for the Current Transformer, depend-
ing on the desired hole diameter.
Hole diameter Model number
5.8 mm E54-CT1
12.0 mm E54-CT3
1-4 Precautions
The following precautions are provided here for your convenience. Be sure to
abide by these precautions whenever working with the E5ZD.
1-4-1 Handling Precautions
•The E5ZD is shipped in a insulating cover that is treated against static electric-
ity.
•Always keep the board inside the cover when storing or transporting it.
•Touch a grounded object with your hand before handling the board to be sure
that your body is free from static electricity.
•Always lay the board on an antistatic mat when working on it.
•Never remove the board from the cover or leave it unprotected unless working
on it.
•Never touch the printed circuit or the components on the board; hold it by the
edge area.
•Never place the board into plastic bags of any sort to avoid static-electricity in-
terference.
1-4-2 Installation Precautions
•Protect I/O wiring against noise. Never run wires parallel to, or in the same duct
as, high-voltage or high-current lines. Keep the distance between I/O wires
Precautions Section 1-4

5
and high-voltage or high-current lines as large as possible. If necessary, use
shielded cables to avoid interference.
•Separate the E5ZD Unit and all I/O wiring to it as far as possible from any de-
vices generating strong high-frequency waves (e.g., high-frequency welders)
or those that generate surges.
•If the E5ZD is located close to devices generating noise, attach surge suppres-
sors or noise filters to the noise-generating devices. Be particularly careful of
motors, transformers, solenoids, magnetic coils, and other inductive devices.
When installing noise filters, verify voltage and current capacities beforehand,
and install the filters as close as possible to the E5ZD.
•To reduce noise emitted from the E5ZD and to protect it from external noise, be
sure to ground the rack or case and ground the frame ground terminal of the
external power source.
•Although the E5ZD can be installed at any angle without inhibiting operation,
the installation angle will affect heat dissipation from the terminal board, and
may cause variations in temperature measurements. To minimize these ef-
fects, the E5ZD should be installed horizontally, installed vertically with the ter-
minal board up and the communications connectors down, or installed with a
fan blowing on the terminal board to provide even temperatures to all termi-
nals.
The E5ZD-8HjjM-E should either be installed horizontally or else vertically
with the sensor connectors down.
•With thermocouple models, use a compensating lead suitable for the thermo-
couple.
•Operate and store the E5ZD in an environment free from icing, condensation,
dust, dirt, corrosive gases (particularly sulfuric or ammonia gas), excessive vi-
bration, excessive shock, water, grease, and oil. Do not operate or store the
E5ZD where subject to extreme temperature changes or dissipating heat (e.g.,
from a furnace).
•Never place so much weight on the E5ZD that it will deform or otherwise
change, whether in storage or operation.
•The operating environment for the E5ZD should have temperatures between
–10°and 55°C, between 35% and 85% humidity, and no condensation or icing.
•The storage environment for the E5ZD should have temperatures between
–25°and 65°C, 35% and 85% humidity, and no condensation or icing.
•The E5ZD may affect radio, television, and other wireless reception if installed
nearby.
1-4-3 Operating Precautions
Caution Never touch the E5ZD while the power is turned on or when a ground-type ther-
mocouple is connected, as there is danger of electric shock.
•The E5ZD requires a 24-VDC power supply. Do not reverse the polarity of the
power terminals, and confirm that the voltage at the connector on the E5ZD is
within power supply ratings (21.6 to 26.4 V). Also be sure that the power supply
and wiring have sufficient capacity for the E5ZD. Insufficient capacity will pre-
vent operation of the E5ZD; allow at least twice the rated power supply current.
•Power supply from a half-wave rectifier cannot be used. Use a stabilized power
supply.
•Initial settings on the E5ZD’s DIP switches must be made before applying pow-
er.
•The nonvolatile memory has a limited overwrite life (approximately 10,000
times). Be sure that you have not exceeded this life; doing so will mean that
new settings are not saved.
Precautions Section 1-4

6
•You must allow at least 10 ms between the host computer receiving a response
and it sending the next command.
•If the terminator switch is set incorrectly, current consumption may increase
and communications may not be possible. Turn ON the terminator switch only
for the terminator, and leave it OFF for all other Units.
•The command which has the longest response time (from the time the com-
mand is received until the beginning of the response) is the WE command,
which transfers RAM data in blocks. For processing this command, it may take
up to 3.5 seconds for the set data to be transferred for Fuzzy-logic Controllers
and up to 2.3 seconds for other Controllers. It is therefore necessary, when
processing communications, to take into account that the response may be
delayed after the command has been transmitted. In addition, if the power is
cut before the transmission of the response has been completed, the contents
of the settings will not be saved.
•When E5ZD Units are used simultaneously with differing numbers of control
points, or if an E5ZD is replaced by another Unit with a different number of con-
trol points, then be sure to take that into consideration when creating the pro-
gram at the host. There may be differences in the number of response data for
global read operations depending on the number of control points.
•If you are using °F as the setting unit, there may be a setting error after the DIP
switch is changed from °C to °F. This is because the settings that were being
used for °C are not automatically converted when the unit is changed to °F, and
the °F temperature range may thus be exceeded. For example, suppose that
an initial value of 0 is set at the time of factory shipment. If the temperature
range is set as 32°F to 752°F for thermocouple K, then the initial value of 0 will
be outside of the range and a setting error will be generated. After changing
DIP switch settings, you should re-initialize E5ZD settings, clear setting errors
and make settings within the correct range, and write the values into nonvola-
tile memory using the WE command.
•The inputs used to designate the current memory bank are level inputs and
must retain their status to maintain the same memory bank designation.
•Do not leave unused inputs, including thermocouple and platinum resistance
inputs, unconnected. When not required, connect dummy inputs as follows:
thermocouple input, short circuit the positive and negative terminals; platinum
resistance input, connect from 100 Ωto 177 Ωbetween terminals A and B, and
short circuit between the B terminals. Leaving these terminals unconnected
will result in operating errors.
•With platinum resistance input specifications, there is no insulation between
sensor input points.
•There is no insulation between sensor inputs and CT inputs.
•For E5ZD-8HjKJM-E sensor input, it is necessary to use a special terminal
block for thermocouple inputs. This special terminal block includes an element
which conducts cold junction compensation, and therefore a cold junction
compensation error will be generated if the special terminal blocks are not con-
nected both to the connector for points 0 to 3 and the connector for points 4 to
7. If an error is generated, the temperature cannot be controlled at any of the
points. Therefore it is necessary to connect two terminal blocks even if only
four points are to be used.
•Turn on the power for the heater before activating the HB alarm. If the power for
the heater is turned on late, the HB alarm may be turned ON.
•There may be a difference between the rated current for the heater and the
current that the heater is actually drawing. When making the setting for the
heater burnout detection level, therefore, use the command for measuring the
current while the heater is actually used, and then take that value as the basis
for making the setting.
Precautions Section 1-4

7
•When making the setting for the heater burnout detection level, it is recom-
mended that you set 1 A or more as the difference between normal status and
heater-burnout status. If the set value is too small, then detection will be unsta-
ble due to the influence of fluctuations in measurement resulting from changes
in the ambient temperature of the E5ZD. In addition, fluctuations in the heater’s
power supply voltage will cause fluctuations in the current, so you must take
that into account when setting the heater-burnout detection level.
•The heater-burnout detection function cannot be used when the heater is con-
trolled by either the phase control method or the cycle control method. In addi-
tion, it cannot be used for three-phase heaters.
•The E54-CT2 Current Transformer cannot be used with the E5ZD. Be sure to
us an E54-CT1 or E54-CT3.
•The control output circuit has a circuit for protection against short-circuiting or
overcurrent which is effective regardless of whether the circuit is used as a
voltage output or an open collector output. This is only for short-term protec-
tion, however, so be sure to correct the problem quickly.
•The following OMRON power supplies are recommended:
Input
voltage
Capacity Output
current
Open Construction
Models
Models with
Covers
100 V 25 W 1.1 A S82J-0224 S82J-5224
50 W 2.1 A S82J-0524 S82J-5524
200 V 25 W 1.1 A S82J-2224 S82J-6224
50 W 2.1 A S82J-2524 S82J-6524
•The E5ZD’s alarm 1, alarm 2, HB alarm, HS alarm, temperature controller error
alarm, and cooling control outputs (for the heating and cooling output models)
are open collector outputs and are not protected from excessive voltages or
currents. Therefore, do not impose a voltage or current exceeding 30 VDC or
50 mA on the E5ZD, otherwise the internal circuitry may be damaged.
•When using an HB alarm or HS alarm output, adjust so that the ON/OFF-timing
of the control output and those of the actual heater current are synchronized. If
the control output is sequenced before being output, there will be a time lag
between the ON/OFF-timing of the control output and that of the heater cur-
rent, and consequently an HB alarm or HS alarm output will be turned ON.
•For stable communications, wait for 3 s or more after turning on the E5ZD and
using communications.
•When control operation is stopped, the channel’s alarms will be turned OFF.
•The alarm 1, alarm 2, HB alarm, and HS alarm outputs are output for an alarm
for any one or more channels.
Precautions Section 1-4

9
SECTION 2
Preparations for Operation
This section covers the basic E5ZD components, their functions, switch settings, connector pin allocations, and specifica-
tions.
2-1 E5ZD-4jjj-E/-6jjj-E Hardware 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-1 Component Names and Functions 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-2 Indicators 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-3 Connector Allocations and Wiring 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-4 Communications Interfaces 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-5 Switch Settings 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 E5ZD-8jjj-E Hardware 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-1 Component Names and Functions 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-2 Connector Allocations and Wiring 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-3 Terminal Blocks 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-4 Communications Interfaces 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-5 Switch Settings 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-6 Indicators 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 E5ZD-8HjjM-E Hardware 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-1 E5ZD-8HjKJM-E System Configuration 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-2 E5ZD-8HjPM-E System Configuration 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-3 Component Names and Functions (E5ZD-8HjjM-E) 38. . . . . . . . . . . . . . . . . . . .
2-3-4 Connector Allocations and Wiring 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-5 Terminal Blocks for Sensors 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-6 Terminal Blocks for Control and Alarm Outputs 45. . . . . . . . . . . . . . . . . . . . . . . . .
2-3-7 Terminal Blocks for CT and Memory Bank Designation Inputs 46. . . . . . . . . . . . . .
2-3-8 Sensor Input Precautions 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-9 Communications Interfaces 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-10 Switch Settings 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-11 Indicators 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10
2-1 E5ZD-4jjj-E/-6jjj-E Hardware
2-1-1 Component Names and Functions
An outline of the basic components and their functions is provided below. De-
tailed connector specifications and switch settings are provided in the next two
sections. The following diagram shows the external appearance and dimen-
sions of the 4- and 6-point controllers.
210
180
175
20
7.34
6
2.76
20
180
100
100 34 1.6
280
abc
6
2-C4
Component height 35 max.
Mounting hole Eight, 3.5 dia.
SW5
SW4
SW3
SW2
SW8
SW7
CN2
CN1
CN6
CN4
TB1
CN3
Component height 7 max.
Card puller
40
24.99
74.95
47.04
5.55
88.9
125
138.9
88.9
274
E5ZD-4jjj-E/-6jjj-E Hardware Section 2-1