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Delta VFD-A

Delta VFD-A
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Delta VFD-A Specifications

General IconGeneral
SeriesVFD-A
Enclosure RatingIP20
Power Range0.4kW-22kW
Control ModeV/F Control, Sensorless Vector Control
Overload Capacity150% for 60 seconds
CommunicationRS-485
Protection FeaturesOvervoltage, Undervoltage, Overcurrent, Overload, Overtemperature, Short Circuit
Cooling MethodFan cooling
Operating Temperature-10°C to +50°C
Storage Temperature-20°C to +60°C
Humidity90% RH, non-condensing

Summary

Introduction

Getting Started

Provides specific information to unpack, install, and operate the AC drive.

Receiving, Storage, and Transportation

Details procedures for receiving, storing, and transporting the AC drive.

Nameplate Information

Explains the details found on the AC drive's nameplate.

Component Identification and Handling

Identifies drive components and describes removal/installation procedures.

Installation and Wiring

Installation Requirements

Specifies environmental and spatial requirements for installing the AC drive.

Wiring

Details main circuit and control circuit wiring connections for the AC drive.

Basic Wiring Diagram

Illustrates the fundamental wiring connections for the AC drive.

Digital Keypad Operation

Digital Keypad Overview

Details the parts and functions of the digital keypad interface.

Screen Display and Messages

Explains displayed messages and indicators on the digital keypad.

Keypad Operating Modes

Describes how to use the keypad for operation and programming.

Start-up Procedures

Initial Operation - Motor Disconnected

Steps for initial operation before connecting the motor.

Motor Connection and Initial Operation

Guides connecting the motor and performing initial operations.

Operation Modes

Frequency Source Selection

Configures the source for the AC drive's operating frequency.

Command Source Selection

Determines the source for AC drive operating instructions.

Motor Stop Method

Defines how the motor stops when a stop command is received.

VF Curve Settings

VF Data Parameters

Sets maximum/minimum frequency, voltage, and mid-point values.

VF Curve Illustrations

Illustrates standard, custom, and fan/pump V/F curve configurations.

Acceleration and Deceleration Time Settings

Primary AccelDecel Times

Sets the main acceleration and deceleration times (Time 1).

Secondary AccelDecel and Jog Times

Configures alternate accel/decel times and jog times.

Stall Prevention Functions

Voltage and Current Stall Prevention

Configures stall prevention for over-voltage and over-current conditions.

DC Braking Functions

DC Braking Parameters

Sets DC braking current, start-up, stopping times, and starting frequency.

Power Loss Protection and Recovery

Momentary Power Failure Modes

Configures drive behavior after a momentary power loss.

Power Loss Time Limits

Sets allowable power loss duration and base block time.

Reference Frequency Limits

Upper and Lower Frequency Limits

Sets the maximum and minimum reference frequency values.

External Control Terminal Configuration

2-wire 3-wire Operation Modes

Selects control wiring modes for external terminals.

Multi-function Input Terminals

Input Terminal Assignments

Configures function for multi-function input terminals 1, 2, and 3.

Analog Output Configuration

Analog Signal Output Settings

Adjusts analog output gain for frequency or current signals.

Multi-function Output Terminals

Output Terminal Functionality

Assigns functions to multi-function output terminals MO1 and MO2.

Frequency Input and Output Settings

Analog Input Configuration

Sets analog input voltage levels for frequency range.

Output Frequency Attainment

Configures desired frequency attained setting.

Motor and Torque Settings

Motor Current Settings

Sets motor rated and no-load current for protection.

Torque Compensation

Configures auto torque compensation for initial starting torque.

Slip Compensation and Output Contacts

Slip Compensation

Compensates for nominal slip to maintain speed under load.

Multi-function Output Contacts

Configures relay outputs for various operational indicators.

Electronic Thermal Overload Protection

Motor Derating Curve Setting

Adjusts thermal characteristics based on motor type and temperature.

Thermal Protection Activation Time

Sets the time for I²t electronic thermal protection to activate.

Over-Torque Detection

Over-Torque Detection Modes

Selects how the drive responds to detected over-torque conditions.

Over-Torque Detection Levels

Sets the detection level and time for over-torque faults.

Counter Functions

Pre-set Count Down Value

Sets the value for the internal counter's countdown.

Count Down Value Setting

Determines the initial value for the internal counter.

Display and Coefficient Settings

Function Display Configuration

Selects what monitored item is displayed on the keypad.

Coefficient K for Line Speed

Sets a multiplier for user-defined setting display.

Skip Frequency Settings

Skip Frequency Points

Defines three frequencies to be skipped during operation.

Skip Frequency Bandwidth

Sets the frequency range to be skipped around the skip points.

Drive Operation and Fault Recovery

PWM Frequency Selection

Sets the carrier frequency for PWM output.

Auto ResetRestart After Fault

Configures automatic reset or restart after a fault condition.

Fault Management and Keypad Control

Fault Record Storage

Stores records of the three most recent faults.

Keypad Lockout and Reset

Controls parameter access and allows factory reset.

Communication Settings

Baud Rate Configuration

Sets the communication baud rate for RS-485 interface.

Slave Address Assignment

Specifies the bus address for remote control via RS-485.

Troubleshooting and Fault Information

AC Drive Fault Categories

Lists common failure types like over-voltage, overload, and communication errors.

Fault Descriptions and Corrective Actions

Details specific faults and their corresponding solutions.

Appendix A: Standard Specifications

230 V Series Specifications

Details electrical and operational characteristics for 230V models.

460 V Series Specifications

Details electrical and operational characteristics for 460V models.

Appendix B: Serial Communications

Computer Control via RS-485

Explains how to control the drive using a PC via RS-485.

Data Format and Protocol

Details the communication data format, baud rates, and protocol structure.

Appendix C: Dimensions

Drive Unit Dimensions

Provides dimensional drawings for various VFD-A/H drive models.

Digital Keypad Dimensions

Shows dimensions for LC-A05E and LC-A10E digital keypads.

Appendix D: Accessories

Control and Extension Accessories

Lists remote control box, digital keypads, and extension cables.

Braking Resistors and EMI Cores

Lists braking resistors and EMI core accessories with their applications.

Appendix E: EMI Filters

EMI Filter Selection Guide

Provides a table matching AC motor drives to suitable EMI filters.

Appendix F: EC Declaration of Conformity (Low Voltage)

Compliance with Low Voltage Directive

Declares conformity with Low Voltage Directive 73/23/EEC.

Appendix F: EC Declaration of Conformity (EMC)

Compliance with EMC Directive

Declares conformity with EMC Directive 89/336/EEC.

Appendix G: Circuit Breaker and Fuse Specifications

Non-fuse Circuit Breaker Chart

Provides recommended breaker ratings based on drive input/output current.

Fuse Specification Chart

Lists recommended fuse types and ratings for AC drives.

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