Delta VFD-M Series AC Motor Drive Service Manual

About this manual

This manual covers safe installation, wiring, and operation of the Delta VFD‑M Series AC motor drive. It emphasizes safety precautions such as disconnecting AC input power, waiting for capacitor discharge, grounding the unit, and ensuring only qualified personnel perform installation and maintenance.

The document is organized into chapters on introduction, installation and wiring, keypad operation, parameter configuration, troubleshooting, fault codes, and maintenance. Appendices provide detailed specifications, accessory information, and guidance on selecting the appropriate motor for the drive.

What's inside

• Introduction
• Installation and Wiring
• Keypad and Start Up
• Parameters
• Troubleshooting
• Fault Code Information and Maintenance
• Appendix A – Specifications
• Appendix B – Accessories
• Appendix C – How to Select the Right AC Motor Drive

Specifications

Frequently asked questions

Which voltage classes are available for the VFD‑M Series?

The VFD‑M Series is offered in 115 V, 230 V, 460 V, and 575 V versions.

What is the output frequency range of the drive?

The drive can output frequencies from 0.1 Hz up to 400 Hz.

How can overload conditions be handled?

The drive tolerates overload up to 150 % of rated current for 1 minute, after which it will trip to protect the motor.