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Hitachi LQZ700 User Manual

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  • Page 3 Second Edition, September 2008, SVE-1-123(D) (out of print) Third Edition, March 2012, SVE-1-123(E) All Rights Reserved, Copyright © 2003, 2012, Hitachi, Ltd. The contents of this publication may be revised without prior notice. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher.
  • Page 4 SAFETY PRECAUTIONS Be sure to read this manual and all other attached documents carefully before installing, operating inspecting or conducting maintenance on this unit. Always use this unit properly. Be sure to carefully read the information about the device, the safety information and precautions before using this unit.
  • Page 5 1. Installation Precautions DANGER If an emergency stop circuit, interlock circuit, or similar circuit is to be formulated, it must be positioned external to this module. If you do not observe this precaution, equipment damage or accident may occur when this module becomes defective.
  • Page 6 CAUTION The degree of temperature rise varies depending on how the module is mounted. The mounting intervals specified in the manual should be used as a guide only. While a test run is conducted after completion of mounting, measure the temperature near the module to check whether it is within the specified range.
  • Page 7 REQUIREMENT Fasten the mount base to a vertical surface. Fastening the mount base to a horizontal surface lessens the heat dissipation effects and allows the temperature to rise, thereby rendering the module defective or incurring component parts deterioration. Before installing the module, discharge any static buildup from your body because static electricity may render the module defective.
  • Page 8 2. Wiring Precautions DANGER Switch off the power supply before making connections to the terminal block. Making connections with the power supply being switched on may incur electrical shock hazards. Electric shock hazards exist so that you might suffer burns or become electrocuted.
  • Page 9 REQUIREMENT Before supplying power to the equipment, thoroughly check the wiring connections. Before making power supply wiring connections, make sure that no voltage is applied to the power cable. Immediately after completion of power supply wiring, be sure to install the terminal cover. Ensure that the communication, power supply, motive power, and other cables are routed apart from each other.
  • Page 10 Do not perform any installation, wiring, handling, or internal modification procedures other than stated in this manual. In no event will Hitachi be responsible for personal injury or death or any damage to Hitachi's product or peripheral equipment arising out of the use of such an unauthorized procedure.
  • Page 11 Hitachi cannot be responsible for accidents or losses resulting from a customer’s misuse. If the software supplied by Hitachi is modified for use, Hitachi cannot be responsible for accidents or losses resulting from such modification. Hitachi cannot be responsible for reliability if you use software other than supplied from Hitachi.
  • Page 12 Hitachi Engineering & Services Co., Ltd. The malfunctioning part will be replaced or repaired free of charge. If the malfunctioning is shipped, however, the shipment charge and packaging expenses must be paid for by the customer.
  • Page 13 This Page Intentionally Left Blank...
  • Page 14 This manual provides information for the following hardware product: <Hardware product> SYS SW (LQZ700) <Changes added to this manual> Description of added changes Page Section 5.3, “Replacing Module” is newly added. In addition to the above changes, all the unclear descriptions and typographical errors found are also...
  • Page 15 Revision record Revision No. Revision Record (revision details and reason for revision) Month, Year Remarks First Edition July 2003 Section 5.3, “Replacing Module” is newly added. September 2008 Additional information is added concerning the service March 2012 life of the relays contained in certain types of hardware modules.
  • Page 16 The model number of the environmentally resistant model is marked by adding the suffix “-Z” to the model number of the standard model. (Example) Standard model: LQZ700 Environmentally resistant model: LQZ700-Z This manual is applicable to both the standard model and environmentally resistant models.

  • Page 17: Table Of Contents

    CONTENTS 1 SPECIFICATIONS ......................1-1 1.1 Overview .......................... 1-2 1.2 Specifications ........................1-3 1.2.1 Module specifications ....................1-3 2 NAMES AND FUNCTIONS OF EACH PART ..............2-1 2.1 Names and Functions of Each Part .................. 2-2 3 MOUNTING AND WIRING ....................3-1 3.1 Mount Base ........................
  • Page 18 FIGURES Figure 1-1 System Configuration ..................Figure 3-1 Mounting the SYS SW Module ................Figure 3-2 Ground Wiring ....................Figure 3-3 Remote I/O Cable Wiring ................... Figure 3-4 SYS SW Module Wiring ..................Figure 5-1 Troubleshooting Flow ..................TABLES Table 3-1 Mount Bases Applicable to the SYS SW Module ..........Table 5-1 Maintenance and Inspection Items ................
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  • Page 20: Specifications

    1 SPECIFICATIONS...

  • Page 21: Overview

    1 SPECIFICATIONS 1.1 Overview The SYS SW module (model: LQZ700) is a system changeover module to implement a multi-LPU (simplified duplex) configuration by connecting between two R70 units or S10V units by this module. A standby duplex system for each unit is configured, and the running system is changed over to the standby system when a fault occurs in the running system.

  • Page 22: Specifications

    1 SPECIFICATIONS 1.2 Specifications 1.2.1 Module specifications Item Specifications Module name SYS SW (system switch) module Model LQZ700 Maximum number of modules mounted 1 module/LPU Input section Number of inputs 2 inputs • PCs OK Input type Contact input (for PCs OK input of the...
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  • Page 24: Names And Functions Of Each Part

    2 NAMES AND FUNCTIONS OF EACH PART...
  • Page 25 2 NAMES AND FUNCTIONS OF EACH PART 2.1 Names and Functions of Each Part Name Function LQZ700-Z SYS SW ① ACTIVE LED Lights up when the self-system LPU is indicator (green) operated as the running system. ACTIVE ① ② ERR LED Lights up as a running system error when the ②...

  • Page 26: Mounting And Wiring

    3 MOUNTING AND WIRING...

  • Page 27: Mount Base

    3 MOUNTING AND WIRING 3.1 Mount Base This module can be mounted in the mount bases as shown in Table 3-1. Table 3-1 Mount Bases Applicable to the SYS SW Module Series Name Model Specifications S10V 4-slot mount base HSC-1540 Power supply + LPU + 4 slots (option, for I/O) R70, S10V 8-slot mount base...
  • Page 28 3 MOUNTING AND WIRING CAUTION Dust or other foreign matter might accumulate on the connector, resulting in poor contact. Immediately after the module is unpacked, perform the mounting and wiring procedures. To prevent the module from being damaged, observe the following precautions when you mount or demount the module: •...

  • Page 29: Ground Wiring

    (with a wire diameter of 2.0 mm or more). • The SYS SW module (LQZ700) does not need to have an FG terminal. • For information about other option modules, refer to the manuals supplied with the modules. (Some option modules do not have an FG terminal.) ②...
  • Page 30 3 MOUNTING AND WIRING DANGER Switch off the power supply before making connections to the terminal block. Making connections with the power supply being switched on may incur electrical shock hazards. Electric shock hazards exist so that you might suffer burns or become electrocuted.

  • Page 31: Wiring

    3 MOUNTING AND WIRING 3.4 Wiring 3.4.1 Remote I/O Cable Wiring The SYS SW module is a system changeover system for simplified duplexing of the LPU unit. The remote I/O unit cannot be duplexed. The remote I/O unit is shared. Regarding the remote I/O line, therefore, connect between each LPU unit and the remote I/O station by a remote I/O cable.

  • Page 32: Sys Sw Module Wiring

    3 MOUNTING AND WIRING 3.4.2 SYS SW module wiring Perform wiring between the SYS SW module of each unit and the LPU module and between SYS SW modules as shown in the figure below. System A unit SYS SW Ladder Ladder module STOP/RUN(A1)
  • Page 33 3 MOUNTING AND WIRING Circuit protect fuse To minimize the burn out or breakage failure of wiring of modules and connecting devices, mount a fuse to the power unit according to the table shown below. Name of the Fuse rated Place in which a fuse is mounted output unit breaking current...

  • Page 34: User Guide

    4 USER GUIDE...

  • Page 35: Sys Sw Module Operations

    4 USER GUIDE 4.1 User Guide 4.1.1 SYS SW module operations Only the R70 (S10V) unit is duplexed in a simplified configuration but the PI/O unit is not duplexed in simplified configuration. (The PI/O unit is shared.) The SYS SW module mounted in each R70 (S10V) unit monitors the execution commands of the opposite LPU to exert LPU control (LPU STOP/RUN).
  • Page 36 4 USER GUIDE When the running system has broken down or stopped due to a fault, a SYS SW module error occurs. The “ERR” LED comes on and the module is changed over to the standby system. This error status is kept without a changeover to the running system until the cause of the error is removed and the “ERR RESET”...

  • Page 37: Startup Procedure

    4 USER GUIDE 4.1.2 Startup procedure The startup procedure for the SYS SW module is as follows. Start Perform wiring between two R70 (S10V) units mounting the SYS SW module according to “3.4 Wiring” to implement a multi-LPU (simplified duplex) configuration. ①...

  • Page 38: Operation Procedure At Occurrence Of An Error

    4 USER GUIDE 4.1.3 Operation procedure at occurrence of an error When a SYS SW module error occurs, the operation procedure is as follows. Start When a running-system unit error occurs, the SYS SW module detects the error in the following cases.
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  • Page 40: Maintenance

    5 MAINTENANCE...

  • Page 41: Maintenance And Inspection

    5 MAINTENANCE 5.1 Maintenance and Inspection 5.1.1 Periodic check To keep the module running in optimal condition, it requires checks. Make checks daily or periodically (twice a year or more often). Table 5-1 Maintenance and Inspection Items Item Point to check Module appearance Check the module case for cracks, flaws and other defects.

  • Page 42: Troubleshooting

    5 MAINTENANCE 5.2 Troubleshooting 5.2.1 Procedure Trouble occurred. Check the trouble according to “5.2.2 Trouble detection and solution.” Is each item executed correctly? Correct if the item is not executed correctly. Returned normally? Check the system error information by the LPU indicator and tool, and take a measure.

  • Page 43: Trouble Detection And Solution

    5 MAINTENANCE 5.2.2 Trouble detection and solution (1) Causes of the failure in SYS SW module operation The causes of the failure in SYS SW module operation are as follows. When one of these causes is applicable to the case, take a measure according to Action. Table 5-2 Causes of the Failure in SYS SW Module Operation and Action To Be Taken Cause of failure in operation Action...
  • Page 44 5 MAINTENANCE (2) Is the cabling correctly? Check cables for disconnection or incorrect connection. (3) Are the modules mounted correctly? Check if the SYS SW module is mounted at the correct position or if any setscrew is not loose. (4) Is grounding correctly? •...

  • Page 45: Replacing Module

    5 MAINTENANCE 5.3 Replacing Module 5.3.1 Procedure The procedure for replacing the SYS SW module is as follows. Start of replacement Turn off the external power supply connected to the self-system unit. Turn off the power supply of the self-system unit. Remove the TB of the SYS SW module.

  • Page 46: Trouble Report

    5 MAINTENANCE 5.4 Trouble Report Fill out this form and submit it to local source. Your company name Person in charge Data and time of occurrence (year / month / day / hour / minute) Address Where to make contact Telephone E-mail Model of defective module...
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