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Shimaden PAC46 Series Instruction Manual

Thyristor three-phase power regulator communication interface
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THYRISTOR THREE-PHASE POWER REGULATOR

Notice

Ensure that this instruction manual is handed to the final user of the instrument.

Introduction

This instruction manual describes the basic function and operating procedure of the PAC46 series communication
interface (RS-485).
For the product overview, details on built-in functions, and wiring, installation, operation, and daily maintenance of the
PAC46 series (hereinafter referred to as "the instrument"), please refer to the separate PAC46 SERIES THYRISTOR
THREE-PHASE POWER REGULATOR INSTRUCTION MANUAL (hereinafter referred to as "the regulator instruction
manual").
PAC46 Series
COMMUNICATION INTERFACE
(RS-485)
Instruction Manual
- 1 -
MPA046-E02-A
Dec. 2018

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Summary of Contents for Shimaden PAC46 Series

  • Page 1: Notice

    For the product overview, details on built-in functions, and wiring, installation, operation, and daily maintenance of the PAC46 series (hereinafter referred to as “the instrument”), please refer to the separate PAC46 SERIES THYRISTOR THREE-PHASE POWER REGULATOR INSTRUCTION MANUAL (hereinafter referred to as “the regulator instruction manual”).

  • Page 2: Table Of Contents

    Table of Contents Notice................................. 1 Introduction .............................. 1 1. Important safety instructions ......................3 2. Overview ............................... 4 2-1. Communication interface ................................4 2-2. Communication protocol and specifications ..........................4 3. Connection between PAC46 and PC/PLC ..................5 3-1. RS-485 ......................................5 3-2.

  • Page 3: Important Safety Instructions

    1. Important safety instructions The following symbols appear with instructions for safety and for equipment/facility damage prevention, as well as for additional explanations and notes on exceptions. WARNING: ◎Failure to comply may result in personal injury or death. CAUTION: ◎Failure to comply may result in damage to equipment and/or facilities. NOTE: ◎Additional explanations, notes on exceptions, and other necessary information.

  • Page 4: Overview

    2. Overview 2-1. Communication interface The instrument optionally supports RS-485 communication. Using a personal computer (hereinafter referred to as "the PC"), PLC, or other equipment as the master and the instrument as a slave, you can perform master-slave communication to set various parameters and read data. RS-485 is a data communication standard defined by the Electronic Industries Alliance (EIA) in the United States.

  • Page 5: Connection Between Pac46 And Pc/Plc

    However, the positive (+) and negative (-) terminals of the instrument have high impedance until just before the instrument starts transmission, and therefore the above levels are output just before the start of transmission. PC/PLC etc. PAC46 series terminal numbers Note: According to the RS-485 specification, use the terminator (1/2 W, 120 Ω) provided between the terminals, as needed.

  • Page 6: Communication Settings

    Double-click Setup.exe in the extracted folder to start installation. By default, in the Program Files(x86) folder on drive C, a folder named Shimaden is created and the PAC46_config_v*** is found in it. The executable file is installed in the PAC46_config_v*** folder. However, you can specify the installation folder as desired.

  • Page 7: Operation

    (3) Operation Connect the PC, RS-485 converter, and PAC46 in advance. Be sure to connect only one PAC46 unit. It is not possible to set multiple units at the same time. Start the configuration tool. The screen as shown in Fig-1 appears. Check that the PAC46 is powered on.
  • Page 8 Click OK on the screen shown in Fig-2. You are now ready to edit communication parameters and control parameters. Click this to edit communication parameters. Click this to edit control parameters. (Fig-4) Click Edit Communication Parameters on the screen shown in Fig-4 to go to the screen shown in Fig-5. Click this to write the content of edits to the PAC46.
  • Page 9 Click Edit Control Parameters on the screen shown in Fig-4 to go to the screen shown in Fig-7. (Fig-7) Edit the control parameters, as needed. After editing the settings, click Write to PAC46. Now, the screen is as shown in Fig-8. To restore the default settings, click Set Default and then click Write to PAC46.
  • Page 10 If the control mode has been changed, the PAC46 is reset and output stops temporarily. (Fig-9) If the control parameter data is successfully written, the screen is as shown in Fig-10. (Fig-10) - 10 -...
  • Page 11 To record the data set on the Edit Control Parameters screen to a csv file, click Save Setting on the screen shown in Fig-11. Note 7: If you do not click Write to PAC46 after editing the control parameters, the settings that were written from the PAC46 will be recorded.

  • Page 12: Overview Of Modbus Protocol

    5. Overview of MODBUS protocol The instrument supports the MODBUS protocol (RTU mode). 5-1. Overview of transmission mode In this mode, 8-bit binary data in commands will be transmitted as is. ■ Data format Error check CRC-16 (Cyclic Redundancy Check) method Data communication interval 3.5 character transmission time or less 5-2.

  • Page 13: Data

    5-5. Data The format of data varies depending on the function code. A request message from the master consists of a data item, the number of data bytes, and set data. A response message from a slave consists of the number of bytes and data to be returned in response, and an error code or the like if it is a negative acknowledgment.

  • Page 14: Communication Data Address

    6. Communication data address 6-1. Details of communication data address (1) Data address and read/write command • The data address range is 0100H to 011B and 0300H to 0314H. • RW stands for data that can be read and written. •...

  • Page 15: Communication Data Address List

    6-2. Communication data address list 6-2-1. Accessing data addresses 0100 to 0108 to enable reading of present output voltage, output current, heater resistance, etc. Data Address Read / Write Data name Details Average of phase-to-phase output voltage values 0100 Output voltage Unit: 0.1 V (Example: 1732 →...
  • Page 16 6-2-2. Accessing data addresses 0109 to 0115 to enable reading of control terminal input status, trimmer adjuster setting, etc. Data Address Read / Write Data name Details 0109 Control terminal, DI1 input 0: Input open 010A Control terminal, DI2 input 1: Input short-circuited 010B Unit: 0.1%...
  • Page 17 6-2-4. Accessing data addresses 0300 to 030C to enable changing of input to trimmer adjusters and control terminals provided on front panel via communication from master equipment Data Address Read / Write Data name Setting range Details Internal power adjustment 0300 communication setting Soft start time adjustment...
  • Page 18 6-2-6. Accessing data address 030F to enable change of control mode Data Address Read / Write Data name Setting range Details 0: Voltage feedback 1: Current feedback Control mode 2: Power feedback 030F communication 0/1/2/3/4 3: Voltage square feedback setting 4: No feedback (Factory-set default is initial value.) Stop output...

  • Page 19: Blank Page For Writing Notes

    Blank page for writing notes - 19 -...
  • Page 20 - 20 -...

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