Hitachi WJ200 Manual⁚ A Comprehensive Guide

This comprehensive guide provides essential information for the Hitachi WJ200 series inverter. It covers everything from initial setup and programming to safety precautions and routine maintenance. Refer to this guide for optimal performance and longevity.

The Hitachi WJ200 series inverters represent a versatile solution for controlling AC motors in a wide range of industrial applications. These inverters, designed for user-friendliness and efficiency, offer advanced features within a compact design. This manual provides a comprehensive overview of the WJ200 series, covering aspects from installation and programming to troubleshooting and maintenance.

The WJ200 series is known for its Easy Sequence (EzSQ) programming software, which allows users to implement PLC-like functionality, enhancing the inverter’s adaptability to specific application needs. The series includes both 200V and 400V class models, catering to diverse power requirements. With power ratings ranging from 0.1 kW to 15 kW, the WJ200 series can accommodate a variety of motor sizes.

Before operating the WJ200 series inverter, carefully read this manual and all the warning labels.

WJ200 Series⁚ Overview and Functionality

The Hitachi WJ200 series of inverters offers a compelling blend of performance, features, and ease of use, making it a strong choice for various industrial applications. Designed for both single-phase and three-phase power systems, the WJ200 series covers a broad spectrum of motor control needs. Its functionality extends beyond basic speed control, incorporating advanced features like sensorless vector control.

One of the key highlights of the WJ200 is its Easy Sequence (EzSQ) programming software. This innovative tool empowers users to create custom control sequences, enabling the inverter to perform automated tasks without requiring an external PLC in many scenarios. The EzSQ functionality allows the users to program the inverter like a PLC. This simplifies system design and reduces overall costs. The series’ adaptability is further enhanced by its compatibility with various communication protocols.

The WJ200 series is designed for ease of installation and commissioning.

Input Power Specifications

Understanding the input power specifications of the Hitachi WJ200 series is crucial for ensuring proper installation and operation. The WJ200 series inverters come in two primary voltage classes⁚ 200V and 400V, each with distinct input power requirements. Within the 200V class, models are available for both single-phase and three-phase input, offering flexibility for different power supply configurations.

Single-phase 200V models typically operate with an input voltage range of 100-200V, while three-phase 200V models require a 200-240V input. The 400V class inverters are designed for three-phase input and operate within a voltage range of 380-480V. It’s essential to verify that the available power supply matches the inverter’s specified input voltage range to prevent damage or malfunction.

The input current requirements vary depending on the specific model and its power rating. Consulting the WJ200 series manual for the exact input voltage and current ratings is always recommended.

Key Features and Specifications

The Hitachi WJ200 series boasts versatile features. These features include various voltage classes, power ranges, and horsepower variants. Comprehensive specifications ensure optimal performance across diverse applications.

Voltage Classes⁚ 200V and 400V Models

The Hitachi WJ200 series inverters are available in two primary voltage classes⁚ 200V and 400V. The 200V class models are typically designed for single-phase and three-phase input, catering to a range of applications. These models often support output power from 0.1 kW to 2.2 kW, ideal for smaller machinery and equipment. Conversely, the 400V class inverters are exclusively for three-phase input. These inverters offer a more substantial power output range, generally spanning from 0.1 kW to 15 kW.

The 400V models are suitable for heavier industrial applications demanding higher power levels. Selecting the appropriate voltage class is crucial for ensuring compatibility with the available power supply and the specific requirements of the driven equipment. Both voltage classes are engineered to meet stringent performance standards. Also, they provide reliable and efficient motor control. Detailed specifications for each model within these voltage classes are available in the WJ200 instruction manual, ensuring proper selection and operation.

Power Range and Ratings

The Hitachi WJ200 series inverters boast a versatile power range, accommodating various industrial applications. Single-phase models typically cover 0.1 to 2.2 kW, suiting smaller motors. Three-phase 200V and 400V models extend up to 15 kW for more demanding tasks. Input voltage options include 100-200V single-phase and 200V/400V three-phase, offering flexibility in different power systems.

Amperage ratings vary, for example, a 0.5 HP model at 100-200V draws 3.5 Amps, while a 10 HP 400V model requires 18 Amps. These ratings ensure compatibility and safety within specified operational parameters. Accurate selection based on motor power and application requirements is crucial. Detailed power ratings and specifications are provided in the comprehensive WJ200 instruction manual. It helps users determine the optimal inverter model for their needs. This ensures efficient and reliable performance across diverse industrial environments.

Horsepower and Kilowatt Variants

The Hitachi WJ200 series offers a range of horsepower (HP) and kilowatt (kW) variants to suit diverse motor applications. Models range from fractional HP units ideal for light-duty tasks, to larger HP units designed for more demanding industrial processes. For example, a WJ200 inverter might be available in 0.5 HP (0.4 kW) for smaller motors, or up to 10 HP (7.5 kW) for larger, more powerful equipment.

This broad selection ensures that users can select the appropriate inverter for their specific motor size and load requirements. Proper matching of HP/kW rating is crucial for optimal performance and energy efficiency. Selecting an undersized inverter can lead to overload and failure. An oversized inverter may result in inefficient operation. Refer to the WJ200 manual for detailed specifications and selection guidelines. Precise specifications ensure the correct model for the intended application.

Programming and Operation

The Hitachi WJ200 series offers versatile programming options for customized operation. It features user-friendly interfaces and software for easy configuration. Programming enables precise control and optimization of motor performance.

Easy Sequence (EzSQ) Programming Software

The Hitachi WJ200 series inverter boasts compatibility with Easy Sequence (EzSQ) programming software, a powerful tool that enables users to implement PLC-like functionality. This software allows for the creation of customized control sequences, tailoring the inverter’s operation to specific application requirements. EzSQ simplifies the programming process, providing an intuitive interface for developing and implementing complex control logic.
With EzSQ, users can define a series of steps or sequences that the inverter will execute, enabling automated control of connected machinery. This feature is particularly useful in applications requiring repetitive tasks or complex control algorithms. The software offers a range of programming options, including logical operations, timers, and counters, providing flexibility in designing control sequences.

EzSQ programming can significantly enhance the functionality of the WJ200 inverter, allowing it to perform tasks beyond basic motor speed control. It enables the implementation of automated processes, reducing the need for external control devices and simplifying system integration. This feature makes the WJ200 series a versatile solution for a wide range of industrial automation applications.

Commissioning Test Procedures (Section 8.1)

Section 8.1 of the Hitachi WJ200 instruction manual details the Commissioning Test Procedures, a crucial step in ensuring the proper and safe operation of the inverter. These procedures are designed to verify the correct installation and configuration of the WJ200 before it is put into service. Following these tests meticulously is vital to prevent potential damage to the inverter or connected equipment.

The Commissioning Test Procedures involve a series of checks and measurements, including verifying the input voltage, motor parameters, and control settings. These tests help identify any wiring errors, incorrect parameter settings, or other potential issues that could affect the inverter’s performance. It is essential to consult the WJ200 instruction manual for the specific steps and recommended values for these tests.

Properly executing the commissioning tests can save time and resources by identifying and resolving issues early on. Neglecting these procedures can lead to unexpected downtime, equipment failure, and potential safety hazards. Therefore, adhering to the guidelines outlined in Section 8.1 is paramount for a successful and reliable WJ200 installation.

Alarm Codes and Programming Instructions

The Hitachi WJ200 inverter utilizes a comprehensive system of alarm codes to indicate various operational issues and faults. Understanding these alarm codes is crucial for troubleshooting and maintaining the inverter’s performance. The WJ200 instruction manual provides a detailed list of alarm codes, along with their corresponding causes and recommended corrective actions.

Programming the Hitachi WJ200 involves configuring various parameters to suit the specific application requirements. The instruction manual offers step-by-step programming instructions, covering a wide range of settings such as motor parameters, acceleration/deceleration times, and control modes. The Easy Sequence (EzSQ) programming software further enhances the inverter’s capabilities, allowing users to implement PLC-like logic for customized control.

Properly understanding and utilizing the alarm codes and programming instructions is essential for optimizing the WJ200’s performance and ensuring its reliable operation. Consulting the instruction manual and following the recommended procedures will help users effectively troubleshoot issues and configure the inverter for their specific needs. Neglecting these aspects can lead to suboptimal performance, equipment damage, and potential safety hazards.

Safety and Maintenance

Prioritize safety when operating or maintaining the Hitachi WJ200. Regular maintenance is vital for optimal performance and longevity. Always adhere to safety guidelines outlined in the manual and on warning labels.

Warning Labels and Safety Precautions

The Hitachi WJ200 series inverter is equipped with several warning labels that must be carefully observed. These labels highlight potential hazards associated with installation, operation, and maintenance. Before working with the inverter, thoroughly read and understand all warning labels. Ignoring these warnings could result in serious injury or equipment damage.

Safety precautions are paramount when dealing with electrical equipment. Always disconnect the input power supply before performing any maintenance or inspection. Wait at least five to ten minutes after disconnecting power to allow capacitors to discharge fully, mitigating the risk of electric shock. Verify proper grounding to prevent electrical hazards.

Ensure the surrounding environment is suitable for electrical equipment, avoiding excessive humidity, dust, or corrosive substances. Use appropriate personal protective equipment (PPE), such as safety glasses and insulated gloves, during installation and maintenance procedures. Never operate the inverter with damaged components.

Be aware of the potential for automatic restarts after power outages. Implement safety measures to prevent unexpected equipment operation. If unsure about any procedure, consult a qualified technician. Prioritize safety in every step.

Maintenance Procedures and Safety Intervals

Regular maintenance is crucial for ensuring the reliable operation and longevity of the Hitachi WJ200 series inverter. Establishing and adhering to a strict schedule of maintenance procedures and safety intervals is paramount. Before initiating any maintenance, always disconnect the power supply and allow sufficient time for capacitor discharge, typically five to ten minutes.

Periodically inspect the inverter for signs of physical damage, such as cracks, loose connections, or corrosion. Clean the inverter’s exterior surfaces with a dry cloth to remove dust and debris, which can impede heat dissipation. Verify that all cooling fans are functioning correctly, as overheating can significantly reduce the inverter’s lifespan.

Check the tightness of all electrical connections to prevent arcing and ensure proper current flow. Measure the voltage levels at various points within the inverter to identify any deviations from the specified values. Replace any damaged components immediately.

Schedule professional inspections at regular intervals, as recommended by Hitachi, to detect potential issues that may not be apparent during routine maintenance. Maintain detailed records of all maintenance activities, including dates, procedures performed, and any parts replaced. Prioritize safety and adhere to all safety guidelines.

Grounding and Disconnecting Devices

Proper grounding and the correct installation of disconnecting devices are absolutely crucial for the safe and reliable operation of the Hitachi WJ200 series inverter. A robust grounding system protects personnel from electrical shock and minimizes the risk of equipment damage due to transient voltage surges or short circuits. Ensure that the inverter is connected to a dedicated grounding conductor that meets all applicable electrical codes and standards.

The grounding conductor should be sized appropriately to handle the maximum fault current that could potentially occur. Inspect the grounding connection regularly to verify its integrity and tightness. Disconnecting devices, such as circuit breakers or fuses, are essential for isolating the inverter from the power supply during maintenance or in the event of a fault.

These devices should be readily accessible and clearly labeled. Select disconnecting devices with an appropriate current rating and interrupting capacity to protect the inverter and upstream electrical equipment. Install overcurrent protection devices in accordance with the manufacturer’s recommendations and relevant electrical codes.

Regularly test the functionality of the disconnecting devices to ensure they operate correctly in emergency situations. Implement lockout/tagout procedures during maintenance to prevent accidental energization of the inverter.

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