Delta VFD110B23A User Manual

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 VFD110B23A Specifications

General

Brand	Delta
Model	VFD110B23A
Category	DC Drives
Language	English

Summary

Preface

PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.

Crucial safety instructions to be read before installing the AC motor drive.

Chapter 2 Installation and Wiring

2.2 Installation

Instructions and guidelines for physically installing the AC motor drive unit.

2.4 Wiring

Precautions and general information regarding wiring the AC motor drive.

2.4.1 Basic Wiring

Fundamental steps and checks for basic wiring of the AC motor drive.

2.4.2 External Wiring

Diagram and explanation of external wiring connections for the AC motor drive.

2.4.3 Main Terminals Connections

Explanation of terminal symbols and functions for main power and control connections.

2.4.4 Control Terminals

Circuit diagrams for digital inputs (SINK/SOURCE modes) and terminal descriptions.

2.4.5 Main Circuit Terminals

Main circuit terminal layout and specifications for 1HP to 3HP models.

Chapter 3 Start Up

3.1 Preparations before Start-up

Essential checks and preparations to perform before starting up the AC motor drive.

3.3 Trial Run

Steps for conducting a trial run of the AC motor drive after initial setup.

Chapter 4 Digital Keypad Operation

4.2 How to Operate the Digital Keypad VFD-PU01

Step-by-step guide on operating the digital keypad for various functions.

Chapter 5 Parameters

Group 0 User Parameters

User-defined parameters for customizing the AC motor drive's behavior.

Group 1 Basic Parameters

Fundamental parameters for configuring the AC motor drive's basic settings.

Group 2 Operation Method Parameters

Parameters defining how the AC motor drive is operated and controlled.

Group 3 Output Function Parameters

Parameters for configuring the various output functions of the AC motor drive.

Group 4 Input Function Parameters

Group 5 Multi-Step Speed and PLC Parameters

Group 6 Protection Parameters

Parameters related to protection functions and fault records of the AC motor drive.

Group 7 Motor Parameters

Group 9 Communication Parameters

Group 10 PID Control Parameters

Parameter Settings for Applications

Description of Parameter Settings

Detailed descriptions and tables for user parameters like Identity Code and Rated Current.

Chapter 6 Fault Code Information

Common Problems and Solutions

Table detailing common fault names, descriptions, and corrective actions for troubleshooting.

Chapter 7 Troubleshooting

Over Current (OC)

Troubleshooting flowchart for over-current faults, including causes and corrective actions.

Ground Fault

Troubleshooting flowchart for ground fault issues, including causes and corrective actions.

Over Voltage (OV)

Troubleshooting flowchart for over-voltage conditions, including causes and corrective actions.

Low Voltage (Lv)

Troubleshooting flowchart for low voltage conditions, including causes and corrective actions.

Over Heat (OH)

Troubleshooting flowchart for overheating issues, including causes and corrective actions.

Overload

Troubleshooting flowchart for overload conditions, including causes and corrective actions.

Display of PU01 is Abnormal

Phase Loss (PHL)

Troubleshooting flowchart for phase loss faults, including causes and corrective actions.

Motor cannot Run

Troubleshooting flowchart for issues where the motor fails to run, covering various potential causes.

Motor Speed cannot be Changed

Troubleshooting flowchart for issues where motor speed cannot be adjusted or changed.

Motor Stalls during Acceleration

Troubleshooting steps for motor stalling issues during the acceleration phase.

The Motor does not Run as Expected

Troubleshooting steps for when the motor's performance is not as expected.

Chapter 8 Maintenance and Inspections

Appendix C How to Select the Right AC Motor Drive

Factors to Consider for Motor Selection

Capacity Formulas

How to Choose a Suitable Motor