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HITACHI PROGRAMMABLE CONTROLLER
APPLICATION MANUAL
NJI-350B (X)
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WARNING To ensure that the equipment described by this manual. As well as all equipment connected to and used with it, operate satisfactorily and safely, all applicable local and national codes that apply to installing and operating the equipment must be followed. Since codes can vary geographically and can change with time, it is the user’s responsibility to determine which standard and codes apply, and to comply with them. FAILURE TO COMPLY WITH APPLICABLE CODES AND STANDARDS CAN RESU
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LIMITED WARRANTY AND IMITATION OF LIABILITY Hitachi, Ltd. (Hitachi) warrants to the original purchaser that the programmable controller (PLC) manufactured by Hitachi is free from defects in material and workmanship under normal use and service. The obligation of Hitachi under this warranty shall be limited to the repair or exchange of any part or parts which may prove defective under normal use and service within eighteen (18) months from the date of manufacture or twelve (12) months from the da
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Copyright 2000 by Hitachi Industrial Equipment Systems Co., Ltd. All Rights reserved - Printed in Japan The information and/or drawings set forth in this document and all rights in and to inventions disclosed herein and patents which might be granted thereon disclosing or employing and the materials, techniques or apparatus described herein are the exclusive property of Hitachi, Ltd. No copies of the information or drawings shall be made without the prior consent of Hitachi, Ltd. Hitachi, Ltd. p
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Safety Precautions Read this manual and attached documents thoroughly before installing and operating this unit, and performing maintenance or inspection of this unit in order to use the unit correctly. Be sure to use this unit after acquiring adequate knowledge of the unit, all safety information, and all precautionary information. Also, be sure to deliver this manual to the person in charge of maintenance. Safety caution items are classified as “Danger” and “Caution” in this document. : Cases
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2. Wiring REQUIRED • Always perform grounding (FE terminal). If grounding is not performed, there is a risk of an electric shock or malfunction. CAUTION • Connect a power supply that meets the rating. If a power supply that does not meet the rating is connected, it may result in a fire. • Any wiring operation should only be performed by a qualified technician. If wiring is performed incorrectly, it may result in a fire, failure, or electric shock. 3. Precautions When Using the Unit DANGER • Neve
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4. Maintenance DANGER • Never connect the and of the battery in reverse. Also, never charge, disassemble, heat, place in fire, or short circuit the battery. There is a risk of an explosion or fire. PROHIBITED • Never disassemble or modify the unit. These actions may result in a fire, malfunction, or failure. CAUTION • Be sure to turn off the power supply before removing or attaching the module/unit. Otherwise, it may result in an electric shock, malfunction, or failure.
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Revision History No. Description of Revision Date of Revision Manual Number 1 Appendix-1 Instruction Support 2000/11 NJI-350 (X) FUN92 to 96 of H-4010 -> ×. Appendix-2 Task code H28 Corrected explanation of Timer counter number. 2 Postscript of battery error detection. (3.2 chapters item 2000/12 NJI-350A (X) number 26, 15 chapters (4) ) Correct a description of digital filter . (8.7 chapters) Addition of appendix 3. 3 28 points expansion units added. 2003/10 NJI-350B (X) Analog expansion m
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Table of Contents Chapter 1 Features .....................................................................................................................................1-1 to 1-2 Chapter 2 System Overview.......................................................................................................................2-1 to 2-2 Chapter 3 Function and Performance Specifications ...............................................................................3-1 to 3-14 3.1 General Specificati
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Chapter 7 Programming.............................................................................................................................7-1 to 7-8 7.1 Memory Size and Memory Assignment................................................................................... 7-1 7.2 Programming Devices.............................................................................................................. 7-2 7.3 Programming Methods.........................................................
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Chapter 10 PLC Installation, Mounting, Wiring......................................................................................10-1 to 10-8 10.1 Installation ............................................................................................................................. 10-1 10.2 Wiring .................................................................................................................................... 10-3 Chapter 11 Communication Specifications..................
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MEMO
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Chapter 1 Features Chapter 1 Features 1. Multifunctional all-in-one type PLC The MICRO-EH is a multifunctional all-in-one type PLC that contains all necessary parts—a power supply and CPU parts as well as I/O units--within one unit. Three sizes of PLCs are available: 10, 14, and 28 points. A type with 23 points plus three points of analog I/O having the same size as the 28-point PLC is also available. Moreover, for PLCs with more than 14 points, it is possible to install additional 14 or 28 poi
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Chapter 1 Features MEMO 1-2
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Chapter 2 System Overview Chapter 2 System Overview This chapter describes the system configuration of the MICRO-EH. The MICRO-EH is an all-in-one type programmable controller, and has the following system configuration. 1] Basic unit Figure 2.1 10-point type system configuration diagram 1] Basic unit 2] Expansion unit 2] Expansion unit 2] Expansion unit 2] Expansion unit 3] Expansion cable 3] Expansion cable 3] Expansion cable 3] Expansion cable Figure 2.2 14-point type system configuration di
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Chapter 2 System Overview [1] Basic unit [2] Expansion unit [2] Expansion unit [3] Expansion cable [3] Expansion cable [2] Expansion unit [2] Expansion unit [3] Expansion cable [3] Expansion cable Figure 2.3 23,28-point type system configuration diagram No restriction for combination of 14,23,28 points, and basic/expansion unit. 14 points basic unit can handle any type of expansion units, and 23/28 points basic unit as well. No. Device name Description 1] Basic unit Calculates, imports inputs,
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Chapter 3 Function and Performance Specifications Chapter 3 Function and Performance Specifications 3.1 General Specifications Item Specification Power supply type AC DC Power voltage 100/110/120 V AC (50/60 Hz), 24 V DC 200/220/240 V AC (50/60 Hz) Power voltage fluctuation 85 to 264 V AC wide range 19.2 to 30 V DC range Current consumption Please refer to 4.7, “Weights and Power Consumption.” Allowable momentary power 85 to 100 V AC: For a momentary power 19.2 to 30 V DC: For a momentary power
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Chapter 3 Function and Performance Specifications 3.2 Function Specifications The functions available in the MICRO-EH are described in the table below. No. Item Description 1 Basic functions The following functions can be executed when constructing a system using the PLC. 1] An input signal is received from the control object, operations are performed according to the contents of the program created by the user and the results are output as an output signal. Also, operation results and progress
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Chapter 3 Function and Performance Specifications No. Item Description 5 Control method With the PLC, the user programs are converted in batch at operation startup, and the programs after conversion will be executed in order as they are read one by one. 1] The method used for data I/O is that after the I/O data (information) is scanned (execution from the head of the program to the end), it is updated in group. If refresh of external I/O is required during scanning (refresh method), use the ref
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Chapter 3 Function and Performance Specifications No. Item Description 9 Forced set/reset Forced set and forced reset of the designated I/O can be performed from the programming unit connected to the CPU module. 10 Forced output Output can be forced with respect to the designated I/O number from the programming unit connected to the CPU module. For I/O that is not designated, outputs are shut off. 11 Calendar clock 23-point and 28-point types have the calendar clock function. function 1] The ye
