Delta VFD150B43A

Preface
Thank you for choosing DELTA’s high-performance VFD-B Series. The VFD-B Series is manufactured with
high-quality components and materials and incorporate the latest microprocessor technology available.
This manual is to be used for the installation, parameter setting, troubleshooting, and daily maintenance of the
AC motor drive. To guarantee safe operation of the equipment, read the following safety guidelines before
connecting power to the AC motor drive. Keep this operating manual at hand and distribute to all users for
reference.
To ensure the safety of operators and equipment, only qualified personnel familiar with AC motor drive are to
do installation, start-up and maintenance. Always read this manual thoroughly before using VFD-B series AC
Motor Drive, especially the WARNING, DANGER and CAUTION notes. Failure to comply may result in
personal injury and equipment damage. If you have any questions, please contact your dealer.
PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.
DANGER!
1. AC input power must be disconnected before any wiring to the AC motor drive is made.
2. A charge may still remain in the DC-link capacitors with hazardous voltages, even if the power has been
turned off. To prevent personal injury, please ensure that power has turned off before opening the AC
motor drive and wait ten minutes for the capacitors to discharge to safe voltage levels.
3. Never reassemble internal components or wiring.
4. The AC motor drive may be destroyed beyond repair if incorrect cables are connected to the input/output
terminals. Never connect the AC motor drive output terminals U/T1, V/T2, and W/T3 directly to the AC
mains circuit power supply.
5. Ground the VFD-B using the ground terminal. The grounding method must comply with the laws of the
country where the AC motor drive is to be installed. Refer to the Basic Wiring Diagram.
6. VFD-B series is used only to control variable speed of 3-phase induction motors, NOT for 1-phase motors
or other purpose.
7. VFD-B series shall NOT be used for life support equipment or any life safety situation.

Delta VFD150B43A Specifications

General

Brand	Delta
Model	VFD150B43A
Category	Controller
Language	English

Summary

Preface

Safety Information Before Installation

Crucial safety guidelines to read before installing the AC motor drive.

Chapter 2 Installation and Wiring

Installation

Instructions for physically mounting and installing the AC motor drive.

Wiring

Detailed instructions and considerations for wiring the AC motor drive.

Basic Wiring

Essential guidelines for basic wiring connections of the AC motor drive.

External Wiring

Main Terminals Connections

Specific instructions for connecting the main power and control terminals.

Control Terminals

Main Circuit Terminals

Chapter 3 Start Up

Preparations before Start-up

Essential checks and preparations before powering on and starting the AC motor drive.

Trial Run

Chapter 4 Digital Keypad Operation

How to Operate the Digital Keypad VFD-PU01

Chapter 5 Parameters

Description of Parameter Settings

Group 1 Basic Parameters

Group 6 Protection Parameters

Parameters related to protecting the drive and motor from faults and abnormal conditions.

Group 7 Motor Parameters

Group 9 Communication Parameters

Chapter 6 Fault Code Information

Common Problems and Solutions

A guide to common issues, their descriptions, and corrective actions.

Reset

Chapter 7 Troubleshooting

Over Current (OC)

Flowchart for diagnosing and resolving over-current faults.

Ground Fault

Flowchart for diagnosing and resolving ground fault issues.

Over Voltage (OV)

Flowchart for diagnosing and resolving over-voltage faults.

Low Voltage (Lv)

Flowchart for diagnosing and resolving low-voltage faults.

Over Heat (OH)

Flowchart for diagnosing and resolving over-heat issues.

Overload

Motor cannot Run

Troubleshooting guide for when the motor fails to run.

Motor Speed cannot be Changed

Chapter 8 Maintenance and Inspections

Periodic Inspection

Appendix C How to Select the Right AC Motor Drive

How to Choose a Suitable Motor