Installation guide for the Delta Electronics VFD-EL-W series small general-purpose sensorless vector inverter, covering safety, wiring, and parameters.
This document provides installation instructions for the Delta Electronics VFD-EL-W series of small general-purpose sensorless vector inverters. It outlines critical safety precautions, including warnings about high voltage after power disconnection and the need for professional installation by qualified motor engineers.
The guide details specific requirements for installation space, ventilation, and grounding to ensure safe operation. It also describes the digital operator functions, provides wiring diagrams for both internal and external power supply modes, and lists key parameter settings such as acceleration time, control mode selection (V/F or Vector), and frequency command sources. This manual is written in Chinese.
Qualified motor engineers must install, wire, and commission the inverter.
Use a variable AC power source at 70–80% rated voltage for 30 minutes, then full rated voltage for 1 hour without running.
The range is 180V to 264V.