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Hitachi HFC-VWS3 U SERIES, HFC-VWS3 H SERIES User Manual

Hitachi HFC-VWS3 U SERIES, HFC-VWS3 H SERIES
89 pages
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Table of Contents

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Hitachi HFC-VWS3 U SERIES, HFC-VWS3 H SERIES Specifications

General IconGeneral
CategoryInverter
ModelHFC-VWS3 U SERIES, HFC-VWS3 H SERIES
Frequency50/60 Hz
Cooling MethodForced air cooling
Protection FeaturesOvercurrent, Overvoltage, Undervoltage, Overheat, Short circuit, Ground fault
DimensionsVaries by model (refer to datasheet)
WeightVaries by model (refer to datasheet)

Summary

Introduction

1.1 Receiving and Storage

Procedures for inspecting, unpacking, and storing the inverter unit.

1.2 General Description

Overview of the inverter's function, design, and operating principles.

1.3 Most Common Causes of Operation Problems

Lists common issues that can damage the inverter or motor.

Initial Inspection and Important Notes

2.1 Qualified Personnel

Emphasizes the need for qualified personnel for installation and servicing.

2.2 Recording set-up parameters

Recommends recording set-up data for future reference and maintenance.

2.3 Factory settings

Details the default configuration settings the inverter ships with.

Inverter Specifications and Capacity Selection

3.1 Standard Specifications

Lists the technical specifications of the inverter including voltage, frequency, and protection features.

Protective functions

Details the various protection circuits like overcurrent, overvoltage, and overload.

Output signal

Describes the signals the inverter can output, such as frequency arrival and running status.

Optional functions

Lists optional features available for the inverter.

General Specifications

Covers environmental conditions like ambient temperature and humidity.

3.2 Output Ratings and Dimensions

Provides a table of inverter models with their output ratings, dimensions, and approximate weight.

3.3 Catalog Number Identification

Explains how to interpret the catalog number for inverter model details.

3.4 Capacity Selection

Guides users on how to select the correct inverter capacity for their motor applications.

Installation Environment and Wiring Notes

4.1 Installation Environment Considerations and Notes

Provides guidelines for selecting a suitable installation location and environment.

4.2 Power Wiring Considerations and Notes

Covers important precautions and recommendations for power wiring connections.

4.3 Main Power Terminal Designations

Shows the layout and function of the main power terminals for different inverter classes.

4.4 Selection of Power Wiring

Details how to select appropriate power wiring based on voltage drop and wire length.

4.5 Use of an Input Transformer

Explains when and how to use an input transformer with the inverter.

4.6 Grounding of Inverter

Provides instructions and diagrams for proper grounding of the inverter.

4.7 Signal Wiring Considerations

Offers guidance on using shielded wire and maintaining cable separation for signal wiring.

4.8 Input/Output (I/O) Signal Terminal Designations

Lists and describes the terminal designations for all input and output signals.

4.9 Input Phase Failure

Explains how the inverter reacts to input phase loss and potential damage.

Type and Function of I/O Signals

5.1 Input Signals

Details the various input signals and their terminal connections and electrical characteristics.

5.2 Output Signals

Explains the different output signals, their purpose, and electrical characteristics.

Block Diagrams and Circuit Description

6.1 PC Board Location/Connections

Shows the physical location and connection points of the PC boards within the inverter.

6.2 Circuit description

Provides a breakdown of the main, control, and protection circuits within the inverter.

Protection Circuits and Fault/Alarm Messages

7.1 Stall Prevention (Overcurrent Trip)

Describes how the stall prevention feature protects against overcurrent during acceleration.

7.2 Overload Protection

Explains the inverter's thermal protection mechanism for motors driven at varying speeds.

7.3 Fault/Alarm Messages

Lists and explains various fault and alarm messages displayed by the inverter.

7.4 Instantaneous Power Failure Ride Thru/Unattended Start Protection (USP)

Details how the inverter handles power interruptions and prevents unintended startups.

Typical Wiring Diagrams

8.1 Wiring Diagrams for Operation From Operator

Illustrates typical wiring for controlling the inverter via the operator key pad.

8.2 Wiring of Thermal Relay

Shows how to wire a thermal relay for motor protection.

8.3 Wiring to Defeat Unattended Start Protection

Provides wiring methods to disable the unattended start protection feature.

8.4 Suggested wiring and configuration diagram when a mechanical brake is used to stop the motor

Offers wiring diagrams for integrating a mechanical brake for motor stopping.

8.5 Wiring of Optional Function Printed Circuit

Describes wiring for optional function boards providing additional capabilities.

Operation From Operator Key Pad and Monitor/Operator Mode

9.1 Configuration of Operator Key Pad

Explains the layout and function of the buttons on the operator key pad.

9.1.1 16 Digit LCD Display Description

Details the information displayed on the inverter's 16-digit LCD screen.

9.2 Monitor/Operator Mode Description

Introduces the Monitor/Operator mode for viewing inverter status and parameters.

9.2.1 Monitor/Operator Mode Displays

Lists and describes the 10 different displays available in Monitor/Operator mode.

9.3 Data Setting Keys

Explains the function of the keys used for navigating and changing data.

9.3.1 Cursor Movement Key

Describes how to use the cursor movement key to navigate display fields.

9.3.2 Increment and Decrement keys

Explains how to use increment/decrement keys to change displays and data values.

9.4 Operation Keys

Details the function of the Forward, Reverse, and Stop keys for controlling the inverter.

9.5 Monitor/Operator Mode Data Entry Description

Outlines the process for entering data and settings via the Monitor/Operator mode.

Set-Up Mode: Manual Adjustments and Programming

10.1 Manual Adjustments

Explains how to use potentiometers and DIP switches for basic adjustments.

10.1.1 DIP Switch

Details the function of each DIP switch on the logic board, including RAM flush.

10.1.2 Potentiometers

Describes the use of M.ADJ and OL.LMT potentiometers for adjustments.

10.2 Programming Of Set-Up Parameters

Guides users on how to program various set-up parameters using the operator key pad.

10.3 Set-Up Functions Description and Selection

Provides detailed descriptions and settings for the inverter's programmable functions.

Maintenance and Trouble-Shooting

11.1 Routine Maintenance

Outlines regular maintenance tasks to keep the inverter clean and functional.

11.2 Measuring Output Voltage, Input/Output Current

Explains methods and circuits for measuring voltage and current outputs.

11.3 Checking Inverter Transistor Modules

Details procedures for testing the inverter's power transistor modules.

11.5 Trouble Shooting

Introduces the troubleshooting section and its diagnostic approach.

11.5.1 Fault Message Diagnostics

Provides a table of fault messages, their meanings, and suggested remedies.

11.5.2 Motor Does Not Operate

Offers a flowchart to diagnose and resolve issues where the motor fails to operate.

11.5.3 Motor Does Not Accelerate

Provides a flowchart for troubleshooting problems with motor acceleration.

11.5.4 Motor Speed Is Too Fast

Offers a flowchart to diagnose and correct situations where motor speed is excessively high.

11.5.5 Inverter Trips on Overcurrent

Presents a flowchart for diagnosing and resolving overcurrent trip issues.

11.5.6 Inverter Trips On Instantaneous Power Failure

Provides a flowchart to address trips caused by momentary power interruptions.

11.5.7 Inverter Trips On OH Fin

Offers a flowchart for troubleshooting overheating alarms related to the heat sink fan.

11.5.8 Inverter Trips On Undervoltage

Provides a flowchart for diagnosing and resolving undervoltage trip conditions.

11.5.9 Inverter Trips On Overload

Offers a flowchart for troubleshooting overload trip issues.

11.5.10 Inverter Trips On Overvoltage

Provides a flowchart to diagnose and resolve overvoltage trip conditions.

11.6 Common Errors On Initial Start-Up

Lists common initial start-up errors and their suggested remedies.

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