Omron E5ZD Operation Manual
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Omron E5ZD Operation Manual

Omron E5ZD Operation Manual

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

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Summary of Contents for Omron E5ZD

  • Page 1 Cat. No. Z042-E1-4 E5ZD Multipoint Temperature Controller...
  • Page 3 E5ZD Multipoint Temperature Controller Operation Manual Revised November 1996...
  • Page 5 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.

  • Page 7: Table Of Contents

    ......E5ZD-4jjj-E/-6jjj-E Hardware ........
  • Page 9 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.

  • Page 11: Introduction

    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. Product Information ............

  • Page 12: Product Information

    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.

  • Page 13: Models Available

    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.

  • Page 14: Precautions

    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.
  • Page 15 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.
  • Page 16 • 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.
  • Page 17 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.

  • Page 19: Preparations For Operation

    SECTION 2 Preparations for Operation This section covers the basic E5ZD components, their functions, switch settings, connector pin allocations, and specifica- tions. E5ZD-4jjj-E/-6jjj-E Hardware ........

  • Page 20: E5Zd-4Jjj-E/-6Jjj-E Hardware

    E5ZD-4jjj-E/-6jjj-E Hardware Section 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.
  • Page 21 The power must be turned off before changing any switch settings. Changes made while the power is on will be invalid. Is used to set the unit number that is used to identify the E5ZD during communi- cations. Is used to set the baud rate for communications.

  • Page 22: Indicators

    Section 2-1 Others Card Pullers Are used to remove the E5ZD when it is mounted to a rack. It is not necessary when the E5ZD is screwed in place. Mounting Screws There are eight mounting holes provided for mounting the E5ZD.

  • Page 23: Connector Allocations And Wiring

    As the three ING terminals are internally connected, it does not matter which is used. Do not connect anything to the unused terminals. For the E5ZD-4jjj-E, terminals 30 to 32 are also not used. Caution CTRLjG terminals are common ground terminals connected together internal- ly.
  • Page 24 Connect the DC+ terminals to 24 VDC; the DC– terminals to 0 VDC. The rated voltage (21.6 to 26.4 V) must be supplied to the DIN connector on the E5ZD; these are not switching power-supply terminals. To ensure activation of the power supply, it is necessary that at least twice the rated current capacity be available when power is turned on.
  • Page 25 E5ZD-4jjj-E/-6jjj-E Hardware Section 2-1 Signal Input Method 14 V Ω 3.9 kΩ BANK0/BANK1/BANK2 VF = 1.2 VF = 0.6 (current outflow: approx. 3 mA) Contact Inputs No-contact Inputs (Open Collector) BANK0/BANK1/BANK2 BANK0/BANK1/BANK2 Connection resistance of 1 kΩ max. Residual voltage of 2 V max.
  • Page 26 CT input terminals. CT input E5ZD E54-CT1/CT3 CT input Sensor Connections Temperature sensor lead wires are connected to TB1 as shown below. Be sure to secure the lead wires so that they do not come into contact with E5ZD compo- nents.
  • Page 27 E5ZD-4jjj-E/-6jjj-E Hardware Section 2-1 E5ZD-4/6jjKJ-E Models Do not use terminals 5, 6, 11, 12, 17, 18, and 20. Using these terminals may re- sult in internal damage. Points 4 and 5 are for 6-point models only. Point 3 Point 4 Point 5 –...

  • Page 28: Communications Interfaces

    E5ZD-4jjj-E/-6jjj-E Hardware Section 2-1 For a thermocouple input, short circuit the + and – terminals. The measured tem- perature will be that of the Terminal Block. For platinum resistance thermometer inputs, place a resistor with an operating resistance of 100 to 177Ω (within the specified temperature range) between ter- minals A and B for the same point, and then short circuit the B terminals.
  • Page 29 • Connections: 1:1 only (when connecting directly between the host computer and the E5ZD with RS-232C) Caution The E5ZD’s RS-232C does not support a CD (carrier detect) signal from the host computer. If CD support is required, pull it up at the host computer. CD is not re- quired with OMRON’s FC-984 Factory Computer.
  • Page 30 E5ZD-4/-6j02j-E: SWB corresponds to SW8. E5ZD-8j02j-E: SWB corresponds to SW508. E5ZD-8H02jM-E: SWB corresponds to SW508. • Applicable connectors: Plug, XM2A-0901; hood, XM2S-0911 (OMRON) or equivalent • Connections: Up to 1:16 Caution Output circuits and contact input circuits are not electrically insulated from the...
  • Page 31 E5ZD-4jjj-E/-6jjj-E Hardware Section 2-1 Caution Turn ON the terminator switches (SWA and SWB) on the E5ZD Unit located far- thest from the host computer, and turn these switches OFF on all other Units. Communications will not operate correctly if the terminator switch settings are wrong.
  • Page 32 • Applicable connectors: Plug, XM2A-0901; hood, XM2S-0911 (OMRON) or equivalent • Connections: Up to 1:16 Caution Outputs circuits and contact input circuits are not electrically insulated from the transmission circuits. Caution Turn ON the terminator switches (SW8) on the E5ZD Unit located farthest from the host computer.

  • Page 33: Switch Settings

    2-1-5 Switch Settings For the following switch settings to be effective, they must be made with the pow- er to the E5ZD turned OFF, i.e., the switch status is read only when the power is turned ON. Unit Number: SW2...

  • Page 34: E5Zd-8Jjj-E Hardware

    (the mode in which the loop-back test is executed) is to be used. If pin 1 is set to ON and then power is applied to the E5ZD, the communications test mode will be used and the following character string will be sent continuously until the power is cut.
  • Page 35 7 max. Connectors CN301 Contains the power supply terminals, the memory bank input terminals, and the control output terminals for an 8-point Controller without heater burnout detec- tion. The OMRON DIN-compatible connector XC5C-6422 or equivalent should be used for CN301.

  • Page 36: Connector Allocations And Wiring

    (i.e. the E5ZD Controller located farthest from the host computer). Others Card Pullers Are used to remove the E5ZD-8jjj-E when it is mounted to a rack. It is not necessary when the E5ZD-8jjj-E is screwed in place. Mounting Screws There are eight mounting holes provided for mounting the E5ZD-8jjj-E.
  • Page 37 The HS alarm out- put goes ON when there is a current flow of 0.5 A or more on the CT when the control output of the E5ZD is OFF. The error output goes ON when an abnormal-...
  • Page 38 Power is supplied to the 8-point controllers through the DC+ and DC– terminals. Connect the DC+ terminals to 24 VDC; the DC– terminals to 0 VDC. The rated voltage (21.6 to 26.4 VDC) must be supplied to the DIN connector on the E5ZD; these are not switching power-supply terminals.
  • Page 39 Unit’s internal circuits. Circuit Configuration 14 V CRTLjA CRTLjB CRTLjG This terminal is connected internally to other terminals in the E5ZD-8jjj-E. Voltage Outputs Open Collector Outputs CRTLjA DC power Voltage: 30 V max. Current: 50 mA max.

  • Page 40: Terminal Blocks

    The Terminal Blocks are wired as described below. Sensor Connections (TB301) Temperature sensor lead wires are connected as shown below. Be sure to se- cure the lead wires so they do not come into contact with E5ZD components. E5ZD-8jjKJ-E Models Do not use terminals 5, 6, 11, 12, 17, 18, and 23 through 26.

  • Page 41: Communications Interfaces

    The unit number (from 0 to F) is set using SW302. When multiple E5ZDs are connected to the same host computer, the same unit number must not be set for more than one E5ZD. The unit number is set to 0 at the factory. Baud Rate: SW501 The baud rate determines the transmission speed for communications with the host computer.
  • Page 42 (the mode in which the loop-back test is executed) is to be used. If pin 1 is set to ON and then power is applied to the E5ZD, the communications test mode will be used and the following character string will be sent continuously until the power is cut.

  • Page 43: Indicators

    E5ZD-8jjj-E Hardware Section 2-2 trol operation. If pin 4 is set to ON, operation will continue immediately after pow- er is restored following a power interruption. If pin 4 is set to OFF, operation will not automatically restart following power interruptions.

  • Page 44: E5Zd-8Hjjm-E Hardware

    Power supply ON Power supply OFF Note 1. During E5ZD-8jjj-E CPU resetting, the E5ZD will not operate and cannot communicate. The reset indicator will light for approximately 1 second after the power is applied or after a malfunction due to a cause such as noise.
  • Page 45 Only control outputs can be used. XW2B-20G4 and XW2B-20G5 through-type Terminal Blocks can be connected to obtain signals directly. System Configuration with In a System with thermocouple input specifications (E5ZD-8HjKJM-E), any of Thermocouple Inputs the Terminal Blocks or I/O Relay Terminals shown inside of the dotted lines can be connected.

  • Page 46: E5Zd-8Hjpm-E System Configuration

    2-3-2 E5ZD-8HjPM-E System Configuration The E5ZD-8HjPM-E has connectors for platinum resistance thermometer in- put and output, so the Terminal Block can be connected by a cable and posi- tioned in a remote location. When a Terminal Block or an I/O Relay Terminal is connected to any of the connectors (CN324 to CN327), GT9-jjjC cable must be used.
  • Page 47 Section 2-3 System Configuration with In a System with platinum resistance thermometer input specifications Platinum Resistance (E5ZD-8HjPM-E), any of the Terminal Blocks or I/O Relay Terminals shown in- Thermometer Inputs side of the dotted lines can be connected. E5ZD-8HjPM-E CN324...

  • Page 48: Component Names And Functions (E5Zd-8Hjjm-E)

    E5ZD-8HjjM-E Hardware Section 2-3 2-3-3 Component Names and Functions (E5ZD-8HjjM-E) An outline of the basic components and their functions is provided below. De- tailed connector specifications and switch settings are provided later. The fol- lowing diagram shows the external appearance and dimensions of an 8-point Controller with heater burnout detection.

  • Page 49: Connector Allocations And Wiring

    (i.e. the E5ZD Controller located farthest from the host computer). Others Card Pullers Are used to remove the E5ZD when it is mounted to a rack. It is not necessary when the E5ZD is screwed in place. Mounting Screws Are eight mounting holes provided for mounting the E5ZD.
  • Page 50 E5ZD-8HjjM-E Hardware Section 2-3 CN301 Terminal The following table shows the terminal assignments for CN301. The DC+ and Assignments DC- terminals are internally connected. Do not connect anything to the unused terminals. Terminal Row a (bottom) Row c (top) Name...
  • Page 51 The HS alarm output goes ON when the control output is OFF and current to the CT is 0.5 A or more. The Temperature Controller error output goes ON when an abnormality is detected within the E5ZD. The two COM terminals are minus common terminals for open collector output, and are connected inside of the the E5ZD-8HjjM-E.
  • Page 52 Power is supplied to the 8-point controllers through the DC+ and DC– terminals. Connect the DC+ terminals to 24 VDC; the DC– terminals to 0 VDC. The rated voltage (21.6 to 26.4 V) must be supplied to the DIN connector on the E5ZD; these are not switching power-supply terminals.
  • Page 53 E5ZD-8HjjM-E Hardware Section 2-3 Circuit Configuration CRTL* Open Collector Outputs relay DC power Voltage: 30 V max. Current: 50 mA max. CRTL*B – CRTL*G Residual voltage of 2 V max. OFF: Leakage current of 1 mA max. All alarm and error outputs are open-collector outputs. The connection methods of these outputs are the same as those of the open-collector control outputs.

  • Page 54: Terminal Blocks For Sensors

    – Point 2 (Point 6) Point 3 (Point 7) E5ZD-8HjPM-E XW2B-20G4, or XW2B-20G5 Terminal Blocks can be used for E5ZD-8HjPM-E platinum resistance thermometer inputs. XW2B-20G4 or XW2B-20G5 The diagram shows the terminal arrangement for a XW2B-20G5, but the num- Terminal Arrangement bers are the same for a XW2B-20G4.

  • Page 55: Terminal Blocks For Control And Alarm Outputs

    Even if relays for 24 VDC are used, noise resistance can be strength- ened by providing separate power supplies to the E5ZD and the I/O Relay Termi- nal instead of providing them with a common power supply. In addition, provide a power supply at the load (contacts) that corresponds to the load.

  • Page 56: Terminal Blocks For Ct And Memory Bank Designation Inputs

    For the E5ZD-8HjKJM-E, the influence of the lead wire resistance on the dis- play is 1% FS/100 Ω max. For the E5ZD-8HjPM-E, it is 1% FS/5Ω max (per line). The influence of lead wire resistance on the E5ZD-8HjPM-E is approxi- mately 0.23 Ω...

  • Page 57: Communications Interfaces

    The unit number (between 0 and F) is set using SW303. When multiple E5ZDs are connected to the same host computer, the same unit number must not be set for more than one E5ZD. The unit number is set to 0 at the factory. Baud Rate: SW501 The baud rate determines the transmission speed for communications with the host computer.
  • Page 58 (the mode in which the loop-back test is executed) is to be used. If pin 1 is set to ON and then power is applied to the E5ZD, the communications test mode will be used and the following character string will be sent continuously until the power is cut.

  • Page 59: Indicators

    E5ZD-8HjjM-E Hardware Section 2-3 2-3-11 Indicators The indicators show the I/O status of the 8-point controllers. Their positions and specific meanings are provided below. (22) (21) (20) (10) (19) (11) (18) (12) (17) (13) (16) (14) (15) (23) (24)
  • Page 60 Power supply ON Power supply OFF Note 1. During E5ZD-8HjjM-E CPU resetting, the E5ZD will not operate and can- not communicate. The reset indicator will light for approximately 1 second after the power is applied or after a malfunction due to a cause such as noise.

  • Page 61: Basic Operation

    SECTION 3 Basic Operation This section describes the basic operational flow of the E5ZD, including communications, memory bank operation, parame- ter backup to nonvolatile memory, HB and HS alarm output operation, and fuzzy-logic control. The commands used to control the E5ZD from a host computer are detailed in the next section.

  • Page 62: Overview

    When you have turned off and on the E5ZD, do not fail to initialize the reception buffer be- fore you send a command from the host computer, otherwise smooth data re- ception cannot be expected.

  • Page 63: Block Format

    Each block begins with a start character, @ (40 ), and the unit number of the E5ZD which is to receive or send the block, and ends with an FCS and a termina- tor. The data code identifies the type of text being transmitted. The unit number...

  • Page 64: Memory Banks

    Command Memory Banks The E5ZD is equipped with memory banks that allow you to change many oper- ating parameters as sets. Some parameters are independent of the control point and determine overall E5ZD operation. Others are set by control point and are independent of the memory bank being used.

  • Page 65: Memory Bank Structure

    The struc- ture of E5ZD parameters is shown below for the E5ZD-8jjj-E or E5ZD-8HjjM-E to illustrate this. Although only the banks for two control points are shown, all control points have eight banks.

  • Page 66: Parameter Backup

    Inside the E5ZD, there are two types of memory used to store parameters. One is RAM, which is erased when power to the E5ZD is turned OFF; the other is non-volatile memory (EEPROM), which is used for permanent parameter stor- age.
  • Page 67 As shown above, the parameters stored in EEPROM are transferred to RAM each time the E5ZD is turned ON. If RAM parameters are changed without re-transferring the new values to EEPROM using WE, the new values will be lost...

  • Page 68: Hb And Hs Alarms

    Transformer (CT). When AC current then flows though the power supply line, an AC current will be induced in the CT and can be input to the E5ZD so that the current flow to the heater can be determined. This allows the E5ZD to detect lack of current flow when the heater is supposed to be on, resulting in the generation of an HB (heater burnout) alarm.

  • Page 69: Application Example

    Heater power supply line 1, 2, 3... 1. First the heater, Current Transformer, and E5ZD are wired. (The wiring from the Current Transformer to the E5ZD is not polarity sensitive.) Because the rated current is 10 A for one heater circuit, the three circuits draw 30 A.

  • Page 70: Fuzzy Control

    The PID circuitry is always active, while the fuzzy control circuitry is active only when there is external disturbance. This means that the control method is the same as that of other E5ZD Controllers when operation is started or when operation is stable. When there is external disturbance, howev- er, the fuzzy control circuitry is activated to respond to the external disturbance, i.e., the E5ZD-8Fjjjj-E adjusts overshooting and undershooting to ensure...

  • Page 71: Application

    Fuzzy Control Output with Slow Temperature Changes 3-6-3 Application The PID with feed-forward circuitry of the E5ZD-8Fj-E is always activated, while the fuzzy control circuitry is activated only when there is external distur- bance. It is thus possible to adjust the PID parameters in the same way as for any other E5ZD Controller.

  • Page 72: Features

    Section 3-6 Features 3-7-1 Fuzzy Parameters The E5ZD-8Fjjjj-E has three parameters: fuzzy strength, fuzzy scale 1, and fuzzy scale 2. The fuzzy strength, which is an output membership function scale, is used to in- crease or decrease the amount of fuzzy control. The larger the fuzzy strength is, the more fuzzy control will be exerted.
  • Page 73 Fuzzy Control Section 3-6 strength is 0, the fuzzy control circuit will not work and only the PID with feed-for- ward circuitry will work. Small Fuzzy strength Large Waveform Changes vs. Fuzzy Strength Value Changes Fuzzy Scale 1 When the value of fuzzy scale 1 is large, response will be slow, temperature os- cillation will be reduced, and overshooting and undershooting will increase when the temperature is a long way from the set temperature.

  • Page 74: Adjusting Fuzzy Parameters

    Fuzzy Control Section 3-6 Adjusting Fuzzy Parameters When overshooting or undershooting is caused once by external disturbance, adjust the fuzzy parameters as follows: Increase the fuzzy strength to reduce the overshooting or undershooting and make the temperature stable. If the fuzzy strength is increased too much, tem- perature oscillation will occur.
  • Page 75 Fuzzy Control Section 3-6 Increase the value of fuzzy scale 1 if there is temperature oscillation after the second overshooting or undershooting. Fuzzy scale 1 Large Decrease the value of fuzzy scale 2 if the temperature does not return to normal after the above operations.

  • Page 77: Commands And Responses

    E5ZD. These are grouped according to purpose. The first section lists the commands and the operational status under which they are valid. It also lists the end codes returned as part of E5ZD responses. These end codes are the main means of monitoring communications.

  • Page 78: Overview

    Overview Section 4-1 Overview 4-1-1 Operational Status and Commands The following list provides the command name, header code, and operation sta- tus under which each command can be executed. If the same header code is used with more than one command, the code which serves to distinguish be- tween these commands is placed in parentheses after the header code.

  • Page 79: End Codes

    4-1-2 End Codes When a response is returned by the E5ZD, the header code is followed by a two- character end code that indicates the execution status of the command. The only exception is when the header code of an command is not recognizable, in which case a header code of IC is returned without an end code.
  • Page 80 Overview Section 4-1 Caution The host computer must be programmed to deal appropriately with end codes. Normal End: 00 The command was executed normally. Prohibited Command: 01 The command cannot be executed under the current operating status, e.g., at- tempting to write certain data during autotuning. Invalid Address: 04 The point number is not between 0 and 4 for 4-point models, between 0 and 5 for 6-point models, between 0 and 7 for 8-point models;...

  • Page 81: Temperature Control Commands (All Controllers)

    Error code Name Meaning E001 Memory error The memory contents have been destroyed. Turn the E5ZD off and on. E002 Sensor input AD er- The sensor AD converter has failed. Turn the E5ZD off and on. E003 Cold junction com-...
  • Page 82 The following command is used to write a set temperature of 23°C in memory bank 0 of control point 0 of unit 0 for an E5ZD model using a K sensor which is set to a temperature range of 0° to 600°C.

  • Page 83: Set Temperature Read: Rs

    Temperature Control Commands (All Controllers) Section 4-2 End Codes If an end code of 00 was returned in the response, the command was executed normally. If the end code is not 00, the desired data will not have been written. Refer to Section 4-1-2 End Codes for a description of the other possible end codes and their meanings.

  • Page 84: Measured Temperature Read: Rx

    The following response shows that a temperature of 1,023°F is set in memory bank 0 of control point 0 in unit 2 for an E5ZD using a K sensor which is set to a temperature range of 32° to 1112°F.
  • Page 85 Temperature Control Commands (All Controllers) Section 4-2 Command Format The format for this command is as shown below. The control point and unit num- ber must be specified and the data code must be 00. Unit Point Always 0. Header code Data code Terminator Command Examples...

  • Page 86: Writing Pid Constant And The Control Period

    Temperature Control Commands (All Controllers) Section 4-2 Error Codes If an error has occurred that makes temperature measuring impossible, Mea- sured Temperature Read will result in a response that contains an error code that indicates what type of error has occurred. The response formats are shown below, and the error codes are described on 4-1-3 Error Codes.
  • Page 87 Temperature Control Commands (All Controllers) Section 4-2 Integral Time Write: WN The integral time is input in seconds (between 0000 and 3999). Setting 0000 will turn integral operation OFF. Unit Bank Point Integral time Header code Data code Terminator 0000 to 3999, Unit: 1 s Derivative Time Write: WV The derivative time is input in seconds and can be between 0000 and 3999.

  • Page 88: Reading Pid Constant And The Control Period

    Temperature Control Commands (All Controllers) Section 4-2 End Codes If an end code of 00 was returned in the response, the command was executed normally. If the end code is not 00, the desired data will not have been written. Refer to Section 4-1-2 End Codes for a description of the other possible end codes and their meanings.

  • Page 89: Controlling Operation

    (i.e., when the proportional band is set to 0000). If PID operation has not been set, these commands simply start and stop E5ZD operation. If Operation Start is sent during autotuning, an error will be generated and end code 01 will be returned.

  • Page 90: Output Mode Write: Wu

    Header code End Codes If an end code of 00 was returned in the response, E5ZD operation was started or stopped normally. If any other end code is returned, the command was not completed successfully. Refer to Section 4-1-2 End Codes for a description of the other possible end codes and their meanings.
  • Page 91 To determine the value to be input for the desired setting, convert the bits to two- digit hexadecimal values and then convert the digits independently to ASCII code. For example, the value to change all points for a 6-point E5ZD to cooling operation would be 3F .

  • Page 92: Output Mode Read: Ru

    Temperature Control Commands (All Controllers) Section 4-2 4-2-8 Output Mode Read: RU This command is used to read the output mode settings, i.e., either cooling or heating operation, for the control points of a Unit. The factory default setting for all points is for heating operation.

  • Page 93: Status Read: Rx

    4-2-9 Status Read: RX This command is used to read the operating status of the E5ZD. This includes control, alarm, and error status. The actual contents of errors can be checked by means of RU data code 03.
  • Page 94 The meaning of the four digits of status data read are described in the following table. Details are also provided below for some of these. Bit no. Function Meaning when ON (1) Meaning when OFF (0) RUN flag E5ZD is operating. E5ZD is off. Not used. Undefined. Undefined. Output mode Cooling...

  • Page 95: Memory Bank Designation Write: Wm

    Response Examples This response shows that, for the specified control point of unit 2, the E5ZD is operating in heating mode, RAM and EEPROM contents are the same, autotun- ing is OFF, and that there are no error or alarm outputs ON except for the alarm 1 output, which is ON.

  • Page 96: Memory Bank Designation Read: Rm

    Temperature Control Commands (All Controllers) Section 4-2 Response Format The response returned for this command is shown below. This response as- sumes that the header code in the command block was transmitted and read normally. If the header code in the command block was not recognizable, a header code of IC will be returned without an end code (see Section 4-1-2 End Codes for the IC header code response format).

  • Page 97: Autotuning Commands

    Temperature Control Commands (All Controllers) Section 4-2 End Codes If an end code of 00 was returned in the response, the command was executed normally. If the end code is not 00, the desired data will not have been read. Re- fer to Section 4-1-2 End Codes for a description of the other possible end codes and their meanings.

  • Page 98: Alarm Mode Write: W

    Temperature Control Commands (All Controllers) Section 4-2 header code of IC will be returned without an end code (see Section 4-1-2 End Codes for the IC header code response format). Unit End code Header code Terminator (AS or AP, depending on the command used.) End Codes If an end code of 00 was returned in the response, the command was executed...
  • Page 99 Temperature Control Commands (All Controllers) Section 4-2 Command Format The format for this command is as shown below. The unit number, control point, and alarm must be specified along with the desired mode. Setting @ 0 Unit W Point code Header Always Data code...

  • Page 100: Alarm Mode Read: R

    Temperature Control Commands (All Controllers) Section 4-2 normally. If the header code in the command block was not recognizable, a header code of IC will be returned without an end code (see Section 4-1-2 End Codes for the IC header code response format). Unit End code Header code...

  • Page 101: Alarm Temperature Write: W

    Temperature Control Commands (All Controllers) Section 4-2 End Codes If an end code of 00 was returned in the response, the command was executed normally. If the end code is not 00, the desired data will not have been read. Re- fer to Section 4-1-2 End Codes for a description of the other possible end codes and their meanings.

  • Page 102: Alarm Temperature Read: R

    Temperature Control Commands (All Controllers) Section 4-2 Alarm Name When setting to 1° When setting to 0.1° mode mode Upper limit Lower limit Upper limit Lower limit Alarm OFF Not effective. Not effective. Not effective. Not effective. Upper and lower limit alarm 1999 19999 Upper limit alarm...
  • Page 103 Temperature Control Commands (All Controllers) Section 4-2 Command Format The format for this command is as shown below. The unit number, memory bank, control point, and alarm must be specified. Unit Bank Point Header code Terminator 00 : Alarm 1 Data code 01 : Alarm 2 Command Examples...

  • Page 104: Eeprom Write: We

    RAM-held parameters. Remember, all commands except for this one affect only the parameters held in RAM; when power is applied to the E5ZD, the values in the EEPROM are returned to RAM. The EEPROM has a limited overwrite life of approximately 10,000 times; do not use the EEPROM Write command needlessly.

  • Page 105: Input Shift Write: Wi

    Temperature Control Commands (All Controllers) Section 4-2 4-2-18 Input Shift Write: WI This command is used to provide shift for temperature inputs by adding or sub- tracting fixed values to or from the sensor input. Shift can be set via the memory bank.

  • Page 106: Hysteresis Write: Wh

    Temperature Control Commands (All Controllers) Section 4-2 Command Format The format for this command is as shown below. The unit number, memory bank, and control point must be specified. Unit Bank Point Data code Header code Terminator (Alphabet) Response Format The response returned for this command is shown below.

  • Page 107: Hysteresis Read: Rh

    Temperature Control Commands (All Controllers) Section 4-2 Command Examples The following command is used to set the hysteresis to 1.5°C in memory bank 2 for control point 1 of Unit 2. 1.5°C Response Format The response returned for this command is shown below. This response assumes that the header code in the command block was transmitted and read normally.

  • Page 108: Output Variable Read: Ro (Rx)

    Temperature Control Commands (All Controllers) Section 4-2 Response Examples This response shows a hysteresis of 12.3°C set in memory bank 0 for control point 0 of Unit 2. 12.3°C End Codes If an end code of 00 was returned in the response, the command was executed normally.

  • Page 109: Transmission Test: Ts

    4-2-23 Transmission Test: TS This command is used to test communications between the host computer and the E5ZD. If the test is successful, the E5ZD will return the same character string as it received. Command Format The format for this command is as shown below. The unit number is required along with the character string that is to be returned.
  • Page 110 Initialize Parameters does not affect the contents of EEPROM. To save the de- fault values (or further modifications of them) to EEPROM, use EEPROM Write. Initialize Parameters can be used only when the E5ZD is stopped and only for all control points at once, i.e., control points cannot be individually initialized.

  • Page 111: Error Read: Ru

    4-2-25 Error Read: RU This command is used to obtain information on errors that exist in the E5ZD. It can be used after a response for Measured Temperature Read indicates that an error exists or after a write command results in the end code 21, indicating that an error exists.
  • Page 112 EEPROM Write command. Turn the E5ZD off and then on again. If recovery is not possible by initializing both RAM (with the Initialize Parameters command), and then EEPROM (with the EEPROM Write command), E5ZD calibrations may have been destroyed.

  • Page 113: Alarm Point Write: Wu

    0. If they are not, an error and an end code of 15 will be gener- ated. For the E5ZD-4jjj-E, bits 4 to 7 must be set to 0. For the E5ZD-6jjj-E bits 6 to 7 must be set to 0. All bits are set to 0 at the factory. Setting...

  • Page 114: Alarm Point Read: Ru

    This command is used to read which control points have been set for HS and HB alarms. (The alarm functions are only available on models equipped with the heater burnout detection function (model numbers E5ZD-jHj-E). All alarms are factory preset to OFF and must be programmed by the operator to establish the desired operating conditions.)

  • Page 115: Detection Level Write: Ww

    HB alarm) at the factory and needs to be reset in order for the alarms to oper- ate. (The alarm functions are only available on models equipped with the heater burnout detection function (model numbers E5ZD-jH-E). The current value set with Detection Level Write is compared with the current from the Current Transformer for the heater.

  • Page 116: Detection Level Read: Rw

    HB alarm), and needs to be programmed by the operator to ensure correct operation. (The alarm functions are only available on models equipped with the heater burnout detection function (model numbers E5ZD-jHj-E). Command Format The format for this command is as shown below. The unit number and control point must be specified.

  • Page 117: Heater Current Read: Rz

    This command is used to measure the current being supplied to the heater. (The alarm functions are only available on models equipped with the heater burnout detection function (model numbers E5ZD-jHj-E). When the points set have been activated for HB and HS alarms by WU, or when control is stopped for those points, 0000 will be returned as data.
  • Page 118 Terminator Error code Name Meaning E004 CT A/D error The Current Transformer A/D converter has failed. Turn the E5ZD off and on to reset. E022 Heater overflow error The measured heater current has exceeded 55 A. End Codes If an end code of 00 was returned in the response, the command was executed normally.

  • Page 119: Fuzzy Constant Commands (Fuzzy-Logic Controllers Only)

    Fuzzy Constant Commands (Fuzzy-logic Controllers Only) Section 4-3 Fuzzy Constant Commands (Fuzzy-logic Controllers Only) This section describes the commands that are used to read and write fuzzy constants. 4-3-1 Fuzzy Constant Write Commands This section covers the commands that are used to set fuzzy constants: the fuzzy strength, fuzzy scale 1, and fuzzy scale 2.

  • Page 120: Fuzzy Constant Read Commands

    Fuzzy Constant Commands (Fuzzy-logic Controllers Only) Section 4-3 Take the decimal position into consideration when writing the fuzzy scale 1 value (increments of 0.1), and when writing the fuzzy scale 2 value (increments of 0.01). Response Format The response returned for this command is shown below. This response as- sumes that the header code in the command block was transmitted and read normally.

  • Page 121: Global Read And Control Operations

    Global Read and Control Operations Section 4-4 Command Example The following command is used to read the fuzzy strength from memory bank 3 of point 2 in unit 1. Response Formats When the host computer sends an Rj, Rk, or Rl command, the Temperature Controller respond according to the command.
  • Page 122 IC will be returned without an end code (see Section 4-1-2 End Codes for the IC header code response format). Designations in parentheses are for 6-point E5ZD models. ”A” Designations for the Control Point (n: number of control points-1)
  • Page 123 Global Read and Control Operations Section 4-4 Header Memory Point Data Operation Code Bank Code 0 to 7 Starts autotuning for specified point. Starts autotuning for all points simultaneously. Starts autotuning for all points sequentially. 0 to 7 Reads modes for alarm 1 as specified. Reads modes for alarm 2 as specified.

  • Page 124: Global Write Operations

    Global Write Operations Section 4-5 Header Memory Point Data Operation Code Bank Code Reads output modes. Do not use (0000). Reads points set for HB and HS alarms. Reads error status. Reads output modes, points set for HB and HS alarms, and error status. 0 to 7 0 to 7 Reads derivative time as specified.
  • Page 125 Global Write Operations Section 4-5 One, two, or all three of these special designations may be made at any time, depending on the header code (see table below). Header Data code Setting Unit Bank Point code 0 to F 0 to 7, A 00 to nn 0 to 7, A Header code...
  • Page 126 Global Write Operations Section 4-5 Header Memory Point Data Operation Code Bank Code 0 to 7 0 to 7 Writes alarm 1 temperature as specified. Writes alarm 2 temperature as specified. Writes alarm 1 and 2 temperatures as specified. Writes alarm 1 temperatures for all points. Writes alarm 2 temperatures for all points.
  • Page 127 Global Write Operations Section 4-5 Header Memory Point Data Operation Code Bank Code 0 to 7 0 to 7 Writes derivative time as specified. Writes derivative times for all points. 0 to 7 Writes derivative times for all banks. Writes derivative times for all banks and points. 0 to 7 Writes heater burnout detection level as specified.

  • Page 129: Transmission Times

    Transmission Times This section describes how to calculation the transmission times for reading and writing data. These times depend on the baud rate and the processing speed of the E5ZD. Writing Times ............

  • Page 130: Writing Times

    For example, suppose we send the following command to read the measured temperature for control point 0 of Unit 0 at a baud rate of 9,600 bps and the E5ZD returns the response shown. Each character consists of 11 bits (i.e. 1 start bit, 7 data bits, 1 parity bit, and 2...
  • Page 131 Reading Times Section 5-2 Command: @ 0 0 R X 0 0 0 0 FCS * CR Response: @ 0 0 R X 0 0 0 1 0 0 FCS * CR The command includes a total of 13 characters (FCS would be two; CR, one) and the response includes 15.

  • Page 133: Troubleshooting

    Troubleshooting This section provides lists of possible causes and solutions for several common problems and describes the loop-back test used to check E5ZD communications. Troubleshooting Lists ............

  • Page 134: Troubleshooting Lists

    The following lists provide likely causes and solutions to common problems. Relevant sections of this manual are given as reference. Communications Not The communications indicator on the E5ZD can be used to see if the E5ZD is Possible transmitting. The following are the probable causes of communications prob- lems.
  • Page 135 Troubleshooting Lists Section 6-1 Outputs Don’t Turn ON The output indicators on the E5ZD can be used to see when outputs turn ON. The following are the probable causes of output problems. Possible cause Remedy Reference No external power supplied to open-collector Wire correctly.
  • Page 136 Sensor type switch setting is wrong Set DIP switch correctly Sec. 2-1-5 A sensor is connected which cannot be used Use sensors that are compatible with the E5ZD, and set Sec. 1-4-2 with the E5ZD. the DIP switch. Thermocouple is used without compensation Connect compensation lead Sec.
  • Page 137 Troubleshooting Lists Section 6-1 Heater Burnout Detection Doesn’t Work Properly Possible cause Remedy Reference Current Transformer is not connected properly. Correctly wire Current Transformer. Sec. 3-5 E54-CT2 is being used. Only E54-CT1 and E54-CT3 can be used as Current Sec. 1-4-3, Transformers.

  • Page 138: Loop-Back Communications Test

    When there are problems with communications, the loop-back communications test can be used to see if the E5ZD is operating properly. For this test, the E5ZD transmits data out and then directly back into itself to see if the same data is re- ceived.

  • Page 139: A Specifications

    Open collector (NPN): 50 mA, 30 VDC max. E5ZD-8HjjM-E Open collector (NPN): 50 mA, 30 VDC max. Control modes E5ZD-8Fjjj-E: Hybrid of PID control with feed-forward circuitry and fuzzy (with autotuning) or ON/OFF Other models: PID control with feed-forward circuitry (with autotuning) or ON/OFF Alarm outputs Open collector (NPN), 50 mA, 30 VDC max.
  • Page 140 Insulation resistance 20 MΩ min. between terminal block and sensor input terminal (at 500 VDC) Dielectric strength 500 VAC, 50/60 Hz between terminal block and sensor input terminal Weight E5ZD-4/-6/jjj-E Approx. 500 g E5ZD-8jjj-E: Approx. 800 g E5ZD-8HjjM-E: Approx. 650 g Memory protection Non-volatile memory (EEPROM), 10 yrs., max.
  • Page 141 Appendix A Standard Models Current Transformer Ratings Specifications Model E54-CT1 E54-CT3 Hole diameter 5.8 mm 12.0 mm Max. continuous heater current 50 A 50 A Withstand voltage 1,000 VAC for 1 min Vibration tolerance 50 Hz (approx 10G) Weight Approx. 11.5 g Approx.

  • Page 143: B Parameter Defaults, Setting Ranges, And Commands

    Appendix B Parameter Defaults, Setting Ranges, and Commands This appendix provides a list of the commands according to the parameters or operations that they control. It also provides the factory-set defaults, the number of digits required to set the parameter, and the parameter’s setting limits.
  • Page 144 Remarks Measured Temperature RX-00 Unit: 1°C Read Read Unit: 0.1°C Heater Current Read Unit: 0.1 A Output Variable Read RX-01 Unit: 0.1% Output Variable Read Unit: 0.1% Status Read RX-02 Operating status of E5ZD Error Read RU-03 Specifies E5ZD error...

  • Page 145: C End Codes

    Frame length error The command block exceeded 127 characters. Invalid command due to Execution of the command is not possible because of parameter settings parameter restrictions Error status Command execution is not possible because an error has occurred in the E5ZD.

  • Page 147: D Error Codes

    The following is a list of error codes which are returned instead of end codes when an error has occurred. Error code Name Meaning E001 Memory error The memory contents have been destroyed. Turn the E5ZD off and on. E002 Sensor AD error The sensor AD converter has failed. Turn the E5ZD off and on. E003 Cold junction com-...

  • Page 149: E Ascii Codes

    Appendix E ASCII Codes Bits 0 to 3 Bits 4 to 7 0000 0001 0010 0011 0100 0101 0110 0111 0000 Space 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111...

  • Page 151: Index

    Index set temperature read: RS, 73 A–C set temperature write: WS, 71 status read: RX, 83 alarms, 7, 11 transmission test: TS, 99 enabling, 103 command block, 53 example of circuit break using heater circuits, 59 commands, 68 HB and HS, 58 EEPROM Write, 120 operation, 58 response time, 6...
  • Page 152 128 D–F memory backup, 56 dimensions, 10 designations, 55 DIP switch settings, 5, 11, 23, 31, 47 structure, 55 E5ZD. See controller terminals, 14, 28, 42 EEPROM, 56 models EEPROM Write, 120 fuzzy logic, 4 standard, 3 end codes, 69...

  • Page 153: Revision History

    Information for switches SW5 and SW503 has been corrected to say “All pins are set to OFF at the factory” throughout the manual. “-E” was added to the end of all E5ZD Multipoint Temperature Controller model numbers. A list of these can be found on pages 3 and 4 of the manual.
  • Page 155 The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS, INC. 1 East Commerce Drive, Schaumburg, IL 60173 U.S.A. Tel: (1)847-843-7900/Fax: (1)847-843-8568 OMRON ASIA PACIFIC PTE. LTD. 83 Clemenceau Avenue, #11-01, UE Square, Singapore 239920 Tel: (65)835-3011/Fax: (65)835-2711 OMRON (CHINA) CO. LTD. 21F, Beijing East Ocean Center No.
  • Page 156 Authorized Distributor: Cat. No. Z042-E1-4 Note: Specifications subject to change without notice. 9009732-0 Printed in Japan 0500-0.2M (A)
  • Page 157 Cat. No. Z042-E1-4 E5ZD Multipoint Temperature Controller OPERATION MANUAL...

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