Omron EasySpeed 3G3JV Series Communications Manual
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Omron EasySpeed 3G3JV Series Communications Manual

Omron EasySpeed 3G3JV Series Communications Manual

Compact simplified inverters
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Cat. No. I548-E1-01
COMMUNICATIONS MANUAL
3G3JE
Compact Simplified Inverters

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  • Page 1 Cat. No. I548-E1-01 COMMUNICATIONS MANUAL 3G3JE Compact Simplified Inverters...
  • Page 2 Preface Thank you for choosing this 3G3JE-series Compact Simplified Inverter. This Communications Manual describes Inverter communications specifica- tions and communications setting methods. Serial communications using the CompoWay/F communications format are supported by 3G3JE Inverters with Communications. This Communications Manual describes Inverter communications.
  • Page 3 OMRON. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con- stantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice.
  • Page 4 WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS...
  • Page 5 Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products.
  • Page 6 Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.
  • Page 7 Safety Precautions Indications and Meanings of Safety Information The following precautions and signal words are used to provide information to ensure the safe use of the 3G3JE Inverter. The information provided here is vital to safety. Always observe the precautions provided.
  • Page 8 Meanings of Alert Symbols The following alert symbols are used in this manual. Symbol Meaning General Caution Indicates non-specific general cautions, warnings, and dangers. Electrical Shock Caution Indicates possibility of electric shock under specific Caution conditions. High Temperature Caution Indicates possibility of burns due to high temperatures under specific conditions.
  • Page 9 Alert Statements in this Manual The following alert statements apply to the products in this manual. Each alert statement also appears at the locations needed in this manual to attract your attention. Caution Be sure to use the specified Braking Resistor or Braking Resistor Unit. Not doing so may occasionally result in moderate burns due to heating of the Braking Resistor or Braking Resistor Unit.
  • Page 10 Precautions for Safe Use Installation and Storage Environment • Do not store, install, or operate the product in any of the following locations. • Locations subject to direct sunlight. • Locations subject to temperatures outside the range specified in the specifications. •...
  • Page 11 Precautions for Correct Use Installation • Mount the product vertically on a wall or on a DIN Track. Leave the prescribed space between this product and the control panel surface and other devices. Main Circuit Power Supply • Use a three-phase, 200 to 230 V, 50/60 Hz power supply. Operation after Power Interruptions •...
  • Page 12 About this Manual This manual is divided into the chapters described in the following table. Understanding how informa- tion is organized will enable you to use the manual more efficiently. Chapter Contents Chapter 1 Provides an overview of the communications methods used for the Communications Methods 3G3JE.

  • Page 13: Table Of Contents

    Table of Contents Chapter 1. Communications Methods ......1-1 Overview of Communications Methods......... Introduction .

  • Page 14: Chapter 1. Communications Methods

    Chapter 1 Communications Methods Overview of Communications Methods...

  • Page 15: Overview Of Communications Methods

    CompoWay/F is OMRON's standard communications protocol for general serial communications. This protocol uses a standard frame format, as well as commands conforming to the well-established FINS* commands used for OMRON PLCs. This simplifies communications between the host com- puter and components.

  • Page 16: Transmission Procedure

    Description K3SC Interface Converter K3SC This Converter is used to convert RS-232C (or USB) to RS-485. (OMRON) Connections and Wiring Connections • Make the connections according to the host computer and 3G3JE communications specifications. • The connection format can be either 1:1 or 1:N.

  • Page 17: Communications Parameters

    Chapter 1 Communications Methods Applicable Line Wire Size, Terminal Screws, and Torque Terminal Torque Wire type Wire size Recommended Cable screw size wire size 0.5 to 0.6 N·m Stranded wire 0.2 to 1.5 mm Shielded twisted-pair 0.75 mm cable (AWG24 to (AWG18) AWG16) Note For details on solderless terminal sizes and wiring methods, refer to the User's Manual.
  • Page 18 Chapter 1 Communications Methods Communications Unit Number Communications unit number Changes during operation Setting range 0 to 99 Default setting To communicate with the host computer, set a unit number for each Inverter so that the Inverters can be recognized by the host computer. The unit number can be set to an integer value between 0 and Note When communicating with multiple Inverters, do not set the same unit number for more than one Inverter.
  • Page 19 Chapter 1 Communications Methods Communications Settings and Operation With 3G3JE Communications Models, communications parameters are set in the initial settings mode. Before communicating with the 3G3JE, use the Digital Operator keys to set all of the parame- ters. For details on making settings other than communications parameters, refer to the 3G3JE User's Manual.
  • Page 20 Chapter 1 Communications Methods Moving to Communications Parameters Power ON When the power is turned ON, the data display and indicators (setting RUN Mode Screen Display and monitoring indicators) will all light, and then the present frequency 4 5. 2 reference be displayed on the data display.
  • Page 21 Chapter 1 Communications Methods Example: Setting Communications Parameters Display the initial settings mode screen, and then use the Increment and Decrement Keys to display P16 (the parameter for which the setting is to be changed in this example). When the Enter Key is pressed, the present set value for the selected parameter will be displayed.

  • Page 22: Chapter 2. Compoway/F Communications Procedures

    Chapter 2 CompoWay/F Communications Procedures Data Format Structure of Command Text Detailed Description of Services Response Code List...

  • Page 23: Data Format

    Chapter 2 CompoWay/F Communications Procedures Data Format This section describes the procedures for communications according to the CompoWay/F protocol. • Hexadecimal values are expressed by adding the prefix H' before the number, e.g., H'02. • Numbers shown without the H' prefix are ASCII characters. (For a table of ASCII codes, refer to the appendix.) •...

  • Page 24: Bcc Calculation Example

    Chapter 2 CompoWay/F Communications Procedures BCC Calculation Example The BCC (Block Check Character) is determined by calculating the exclusive OR of the bytes from the node number through ETX. The 8-bit result is written to the BCC byte at the end of the frame. Sub-address Command text Node number...

  • Page 25: Response Frame

    Chapter 2 CompoWay/F Communications Procedures Response Frame Node Sub- number address End code Command text Normal Completion End code Name Description Error detection priority Normal completion The command ended normally without error. None Error Completion End code Name Description Error detection priority FINS command •...

  • Page 26: End Code Examples

    Chapter 2 CompoWay/F Communications Procedures End Code Examples The following examples show the end code when a command did not end normally. Example 1: Illegal Sub-address, No SID, and No Command Text • If there is an illegal sub-address, and no SID or command text, the response end code will be 16 (sub-address error).
  • Page 27 Chapter 2 CompoWay/F Communications Procedures Example 3: No Node Number Provided • If there is no node number (or if it is lacking a character), there will be no response. Command The node number is lacking one character. Response There is no response. Example 4: No Sub-address and Illegal BCC •...

  • Page 28: Structure Of Command Text

    Chapter 2 CompoWay/F Communications Procedures Structure of Command Text PDU Structure • An MRC (Main Request Code) and SRC (Sub-Request Code) followed by the various required data are transferred in the command text field. Service Request PDU Data • The MRES (Main Response Code) and SRES (Sub-Response Code) are transferred in the response frame following the MRC and SRC.

  • Page 29: Addresses

    Chapter 2 CompoWay/F Communications Procedures The variable type is converted to 2-byte ASCII and appended to the frame. The following table shows the available variable types. Variable type Description Double-word data. R/O (read only) parameters for setup area 0. Double-word data. R/W (read/write) parameters for setup area 0. Double-word data.

  • Page 30: Detailed Description Of Services

    Chapter 2 CompoWay/F Communications Procedures Detailed Description of Services Read Variable Area This service reads data from the variable area. Service Request PDU SRC Variable type Read start address Bit position Number of elements Service Response PDU Response code Read data (for number of elements) 0, 8, or 16 1.Variable Type and Read Start Address For details on variable types and read start addresses, refer to Chapter 3 Communications Data.

  • Page 31: Write Variable Area

    Chapter 2 CompoWay/F Communications Procedures Write Variable Area This service writes data to the variable area. Service Request PDU Variable type Write start address Bit position Number of elements Write Data (for number of elements) 0, 8, or 16 Service Response PDU Response code 1.Variable Type and Write Start Address For details on variable types and write start addresses, refer to Chapter 3 Communications Data.

  • Page 32: Read Controller Attributes

    Chapter 2 CompoWay/F Communications Procedures Read Controller Attributes This service reads the model number and communications buffer size. Service Request PDU Service Response PDU Response code Model No. Buffer size 1.Model Number The model number is expressed in 10-byte ASCII. When 10 bytes are not required, the remaining bytes are filled with spaces.

  • Page 33: Echoback Test

    Chapter 2 CompoWay/F Communications Procedures Service Response PDU Operating Related Response code status information 1.Operating Status Operating status Description Operation is being performed (including when operation has stopped automatically because a protective function has operated). Operation is not being performed. 2.Related Information Bit position Forward operation...

  • Page 34: Operation Command

    Chapter 2 CompoWay/F Communications Procedures 1.Test Data Set between 0 and 23 bytes of user-defined test data. Set a value for the test data within the ranges shown below according to the communications data length. Communications data length Test Data 8 bits ASCII data: H'20 to H'7E or H'A1 to H'FE 7 bits...
  • Page 35 Chapter 2 CompoWay/F Communications Procedures 1.Command Codes and Related Information Command code Command Related information RUN/STOP 00: Run 01: Stop/Reset protective function Frequency References 1 to 4 00: Frequency reference 1 01: Frequency reference 2 02: Frequency reference 3 03: Frequency reference 4 Forward/Reverse Operation 00: Forward operation 01: Reverse operation...
  • Page 36 Chapter 2 CompoWay/F Communications Procedures • Software Reset Command code 07 is used to start the processing that occurs when the power is turned ON. A software reset can be performed in setup area 0 or 1. (There is no response to this com- mand.) •...

  • Page 37: Response Code List

    Chapter 2 CompoWay/F Communications Procedures Response Code List Normal Completion Response code Name Description Error detection priority 0000 Normal completion No errors were found. None Error Completion Response code Name Description Error detection priority 0401 Unsupported command The service function for the relevant command is not supported.

  • Page 38: Chapter 3. Communications Data

    Chapter 3 Communications Data Variable Area Setting Range List Status...

  • Page 39: Variable Area Setting Range List

    Chapter 3 Communications Data Variable Area Setting Range List The following table lists the data ranges for each type of variable. Refer to the individual items for details. Variable Type C0 Address Name Setting range Communications notation Default Unit 0000 Frequency reference 0.0 to 120 H’00000000 to H’000004B0...
  • Page 40 Chapter 3 Communications Data Variable Type C3 Address Name Setting range Communications notation Default Unit 0000 Rated motor current 0.0 to 2.5 H’00000000 to H’00000019 0.1 kW: 0.6 0.2 kW: 1.0 0.4 kW: 2.0 0001 Accumulated operating time 0.0 to 99.9 H’00000000 to H’000003E7 20.0 standard 0002...

  • Page 41: Status

    Chapter 3 Communications Data Status The figure below shows the structure of the status data. 16 15 14 13 12 11 10 9 0 0 0 Status 0 (OFF) 1 (ON) Overcurrent protection Not triggered Triggered Not used. Not used. Motor overload protection Not triggered Triggered...

  • Page 42: Chapter 4. Appendix

    Chapter 4 Appendix ASCII List...

  • Page 43: Ascii List

    Chapter 4 Appendix ASCII List b8 b7 b6 b5 NUL DLE SPACE SOH DC1 STX DC2 " ETX DC3 EOT DC4 ENQ NAK ACK SYN & BEL ETB < >...

  • Page 44: Index

    Index number of elements addresses area definitions Operation Command 2-13 ASCII list parameters P15 (communications unit number) P16 (communications baud rate) P17 (communications data length) command frame P18 (communications stop bits) command text P19 (communications parity) structure PDU structure communications baud rate communications data communications data length Read Controller Attributes...

  • Page 45: Revision History

    Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual. Cat. No. I548-E1-01 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.

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