Delta VFD-M Series User Manual

English-1
Preface
Thank you for choosing DELTA’s high-performance VFD-M Series. The VFD-M Series is
manufactured with high-quality components and materials and incorporates the latest microprocessor
technology available.
 Getting Started
This quick start will be helpful in the installation and parameter setting of the AC motor drives. To
guarantee safe operation of the equipment, read the following safety guidelines before
connecting power to the AC motor drives. For detail information, refer to the VFD-M User Manual
on the CD supplied with the drive.
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-M 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-M series is used only to control variable speed of 3-phase induction motors, NOT for 1-
phase motors or other purpose.
7. VFD-M series shall NOT be used for life support equipment or any life safety situation.
WARNING!
1. DO NOT use Hi-pot test for internal components. The semi-conductor used in AC motor drive
easily damage by high-pressure.
2. There are highly sensitive MOS components on the printed circuit boards. These components
are especially sensitive to static electricity. To prevent damage to these components, do not
touch these components or the circuit boards with metal objects or your bare hands.
3. Only quality person is allowed to install, wire and maintain AC motor drive.
CAUTION!
1. Some parameters settings can cause the motor to run immediately after applying power.
2. DO NOT install the AC motor drive in a place subjected to high temperature, direct sunlight,
high humidity, excessive vibration, corrosive gases or liquids, or airborne dust or metallic
particles.
3. Only use AC motor drives within specification. Failure to comply may result in fire, explosion or
electric shock.
4. To prevent personal injury, please keep children and unqualified people away from the
equipment.
5. When the motor cable between AC motor drive and motor is too long, the layer insulation of the
motor may be damaged. Please use a frequency inverter duty motor or add an AC output
reactor to prevent damage to the motor. Refer to appendix B Reactor for details.
6. The rated voltage for AC motor drive must be ≤240V for 230V models (≤120V for 115V models,
≤480V for 460V models, ≤600V for 575V models) and the mains supply current capacity must
be ≤5000A RMS (≤10000A RMS for the ≥40hp (30kW) models).

Delta VFD-M Series Specifications

General

Braking Unit	Built-in
Control Mode	V/F control, Sensorless Vector Control
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Operating Temperature	-10°C to +50°C
Overload Capacity	150% for 60 seconds

Summary

Preface

Getting Started & Safety

Safety Guidelines

Key safety warnings and cautions for installation, wiring, and operation.

Specifications

115V Class Specifications

Technical data for the 115V class of AC motor drives.

230V Class Specifications

Technical data for the 230V class of AC motor drives.

Specifications

460V Class Specifications

Technical data for the 460V class of AC motor drives.

General Drive Features

Control System & Characteristics

Details on control system, resolution, and operational characteristics.

General Drive Features

Protection, Display, Environment & Wiring

Drive protection, display, environmental factors, and basic wiring diagram.

Digital Keypad Operation

Keypad Components & Functions

Explanation of the digital keypad's display panel and control buttons.

Keypad Usage Guide

Step-by-step instructions for setting parameters and operating the drive.

Power Terminals & Wiring

Model Specifications & Wire Gauge

Table of model names, current ratings, wire gauge, and torque specs.

Wire Type & Terminal Notes

Information on wire type and requirements for proper terminal connections.

Terminal Explanations

Main Circuit & Brake Terminals

Explanation of AC line input, motor output, and brake resistor terminals.

Control Wiring Diagrams (NPN Mode)

Diagrams and explanations for control wiring in NPN mode.

Terminal Functions

Multi-function Input Terminals

Details on the function and settings of multi-function input terminals.

Analog Signal Terminals

Information on analog voltage, current, and output signals.

Parameter Settings - Speed & Timing

Frequency & Operation Command Source

Parameters for setting frequency command and operation source.

Stop Method & Accel/Decel Times

Settings for stop method, output frequency, and acceleration/deceleration times.

Parameter Settings - Protection & Braking

Speed, Stall, and Overload Protection

Parameters for jog frequency, stall prevention, and overload settings.

DC Braking & Power Loss Management

Settings for DC braking, momentary power loss, and speed search.

Parameter Settings - Inputs & Outputs

Multi-function Input Terminal Configuration

Configuration options for multi-function input terminals.

Analog Output Signal & Gain

Parameters for analog output signal type and gain adjustment.

Parameter Settings - Outputs & Overload

Multi-Function Output Terminal Settings

Settings for multi-function output terminals and motor parameters.

Electronic Thermal Overload Relay Settings

Configuration for the electronic thermal overload relay.

Parameter Settings - Faults & Communication

Over-Torque, Fault Handling & Display

Settings for over-torque detection, fault handling, and user-defined display.

Communication Frequency & Skip Settings

Parameters for communication frequency and skip frequency settings.

Parameter Settings - Records & PLC

Fault Records & Parameter Lock/Config

Parameters for fault records and locking/configuring settings.

PLC Operation & Speed Step Durations

Settings for PLC operation modes and time duration for step speeds.

Parameter Settings - Communication & Control

Speed Durations & Communication Protocol

Parameters for speed step duration and communication protocol settings.

Energy Saving & Auto Accel/Decel

Settings for auto energy saving and adjustable acceleration/deceleration.

Parameter Settings - Voltage & PID

Auto Voltage Regulation & Motor Tuning

Parameters for Auto Voltage Regulation and auto motor tuning.

Control Modes & PID Feedback

Settings for control modes, PID set points, and feedback selection.

Parameter Settings - PID & Sleep

PID Control Parameters & Delays

Parameters for PID control gains, offsets, and input/output delays.

Sleep Mode & Save Frequency Settings

Settings related to sleep mode, frequency saving, and external control.

Parameter Settings - Advanced Control

Frequency Command & Braking Levels

Settings for secondary frequency command and software braking levels.

Index Functions & Communication Modes

Parameters for simple index functions and communication modes.

Fault Codes & Troubleshooting

Over Current, Voltage & Overheating Faults

Details on OC, OU, OH fault codes and their corrective actions.

Low Voltage & Overload Faults

Information on LU, OL fault codes and troubleshooting steps.

Fault Codes & Troubleshooting

EEPROM, External & Communication Faults

Covers EEPROM, External Fault, Communication errors and remedies.

Acceleration, Deceleration & Ground Faults

Details on OCa, OCd, OCN, CFA, GFF fault codes and troubleshooting.

Fault Codes & Dimensions

Hardware & Communication Faults

Information on remaining hardware and communication fault codes.

PID Feedback Faults & Drive Dimensions

Covers PID feedback faults and physical dimensions of the drive.

Drive Dimensions

Physical Dimensions by Model

Table showing physical dimensions (W, H, D) for various drive models.