Hitachi NES1-004SB - User Manual

HITACHI INVERTER
NE-S1 SERIES
Quick Reference Guide
Read through this Quick Reference Guide, and keep it handy for future reference.
NT3411DX

Summary

Hitachi Inverter NE-S1 Series Quick Reference Guide

Introduction

Handling of this Quick Reference Guide

Instructions on how to handle and care for the Quick Reference Guide, including its non-resupply policy.

Revision History

Table detailing revisions made to the Quick Reference Guide over time.

Chapter 1 Safety Instructions

Safety Instructions

General safety instructions and warnings related to installation, operation, and maintenance of the inverter.

Electromagnetic Compatibility (EMC) Precautions

Guidelines for installation to ensure compliance with EMC directives and minimize electromagnetic interference.

UL and cUL Standards Compliance Precautions

Precautions related to meeting UL and cUL standards for safe and compliant use.

Chapter 2 Inspection of the Purchased Product

Inspection of the Purchased Product

Procedures for checking the inverter and its accessories after unpacking to ensure it is undamaged and correct.

Inquiry Method and Product Warranty

Information on how to inquire about the product and details of the product warranty terms and conditions.

Chapter 3 Exterior Views

Exterior Views and Names of Parts

Visual identification of the inverter's external parts and their names for easy reference.

Names of Portions (with Front Cover Removed)

Detailed description of components and terminals visible after removing the front cover.

Chapter 4 Installation

Installation Precautions

Critical safety and environmental precautions to follow during the inverter's installation process.

Chapter 5 Wiring

Wiring Precautions

Safety warnings and precautions to observe before and during the wiring process to prevent electric shock and fire.

Front Cover Attachment and Removal

Step-by-step instructions for safely attaching and removing the inverter's front cover.

Attaching the Exclusive Operator (NES1-OP)

Guide on how to connect and install the optional NES1-OP operator.

Wiring and Terminal Descriptions

Detailed description of wiring terminals and their functions for main and control circuits.

Mains Wiring

Specific instructions and precautions for connecting the main power supply to the inverter.

Control Circuit Wiring

Detailed guide for wiring the control circuit terminals, including signal connections and logic.

Connection with Programmable Controller (PLC)

Instructions for connecting the inverter to a PLC for automated control operations.

Notes on Using Multiple Inverters

Important considerations and notes for using multiple inverters together in a system.

Chapter 6 Operation

Operation Precautions

Essential safety warnings and precautions to follow before and during inverter operation.

Confirmation Before Power-Up

Checklist of items to confirm before applying power to the inverter to ensure safe and correct startup.

Changing Parameters

Information on the methods and requirements for changing inverter parameters.

Powering Up the Inverter

Steps and checks required to safely power up the inverter after installation and configuration.

Operating the Digital Operator

Guide on how to use the functions and navigate the digital operator interface for inverter control.

Motor Operation

Explanation of how to operate the motor using the inverter, including necessary commands and settings.

Motor Test Run

Procedures for conducting a test run of the motor to confirm correct operation and settings.

Handling Tripping Occurrences

Steps to take when the inverter trips, including identifying causes and resetting the unit.

Chapter 7 Explanation of Functions

Monitoring the Data

Details on various parameters that can be monitored from the inverter, such as frequency, current, and voltage.

Using Basic Functions

Explanation of essential inverter functions like frequency source and output settings.

Setting Intelligent I;O Terminals

How to assign functions to intelligent input and output terminals for flexible control.

Using the Analog Terminal

Guide on utilizing the analog input terminals for frequency and PID control signals.

Driving the Motor

Functions related to controlling motor operation, including V/f characteristics and torque boost.

Operator Display Functions

Features for customizing the operator display, screen selection, and button sensitivity.

Restart Functions

Configuration options for inverter restart behavior after power failures or trips.

Protection, Warning, and Output Signal Functions

Details on setting up protection mechanisms, warning signals, and output signal logic.

Initializing

Procedures for initializing the inverter parameters or trip history to default settings.

Chapter 8 Communication Functions

Communication Specification

Overview of communication protocols and specifications supported by the inverter, focusing on Modbus RTU.

Connecting to Modbus

Step-by-step guide on how to physically connect the inverter to a Modbus network using the RJ45 connector.

Modbus Setting Procedure

Instructions for configuring the inverter's Modbus communication parameters and switching modes.

Modbus Communication Parameters

Table listing all necessary Modbus communication parameters and their settings for proper operation.

Modbus Protocol Reference

Details on the Modbus protocol, including transmission procedures, frame formats, and error responses.

Explanation of Function Codes

Description of available Modbus function codes for interacting with the inverter.

Re-calculating Internal Variables

Procedure for recalculating internal variables, usually after parameter changes.

Modbus Data Listing

Comprehensive list of Modbus coils and holding registers for data access and manipulation.

Chapter 9 Error Codes

Indication of Errors

Explanation of how the inverter indicates errors using LEDs and digital displays.

Error Codes and Troubleshooting

Detailed list of error codes, their meanings, and corresponding troubleshooting steps.

Warning Codes for Digital Operator

List of warning codes displayed on the digital operator and their associated conditions.

Other Digital Operator Displays

Description of various other display states and codes shown on the digital operator.

Chapter 10 Troubleshooting

Troubleshooting Tips

A guide covering common symptoms and their potential causes and corrective actions.

Chapter 11 Maintenance and Inspection

Maintenance and Inspection Precautions

Essential safety warnings and procedures to follow before performing any maintenance or inspection.

Daily and Periodic Inspections

Recommended inspection schedules and methods for ensuring the inverter's continuous operation.

Ground Resistance Test with a Megger

Procedure for testing the ground resistance of the inverter's main circuit using a megger.

Withstand Voltage Test

Warning against performing a withstand voltage test, as it may damage the inverter.

Measuring Input;Output Voltages, Current, and Power

Guidance on the instruments and methods for measuring electrical parameters of the inverter.

Capacitor Life Curves

Information on how ambient temperature affects the lifespan of the inverter's capacitors.

Chapter 12 Specifications

Specifications

Comprehensive list of electrical and mechanical specifications for different inverter models.

Dimensions

Physical dimensions of the inverter models, including W, H, D, and D1 measurements.

Derating Curves

Graphs showing how to adjust output current based on carrier frequency and ambient temperature.

Chapter 13 Option

Digital Operator

Details on the NES1-OP, OPE-S/SR/SBK/SRmini, and WOP digital operators and their attachment.

NES1-FFM-M Top Cover for Exclusive Use

Information on the optional FFM top cover, its benefits, applicable models, and mounting method.

Appendix

Appendix A

Contains additional information, specifically the disassembly method for the NES1-OP.

Hitachi NES1-004SB Specifications

General

Brand	Hitachi
Model	NES1-004SB
Category	Inverter
Language	English