Lenze EVF9327-EH 9300 Vector Drive Unit

Module Feature

EVF9327-EH belongs to Lenze 9300 vector series frequency inverter.

It supports V/F control and sensorless vector control for asynchronous motors, with flexible function blocks and fieldbus expansion options. This obsolete drive is widely used for printing, packaging and conveying equipment spare replacement.

Working principle

Three-phase AC input is rectified into DC bus, IGBT power unit outputs adjustable PWM AC.

The control board executes closed-loop speed and current regulation, and implements application logic inside the drive. It has complete protection functions for overcurrent, overvoltage and overtemperature.

Onboard components

Rectifier bridge, IGBT inverter module, DC bus capacitors, current sampling circuit, control mainboard, cooling fan, terminal block.

LED indicators

Front LEDs show power, run state, fault alarm and communication link status.

Hardware self‑diagnosis

Power-on self-test and continuous monitoring detect phase loss, overtemperature, bus deviation and communication failure, fault codes can be read via engineering software.

Programming software

Lenze L-force Engineer, used for parameter setting, motor identification and fault backup.

Electrical & Process Parameters

Model:EVF9327-EH Brand:Lenze Device type:Vector frequency inverter Voltage:400V 3-phase AC Function:AC motor speed and torque closed-loop control

Mechanical & Structure

Mounting:Cabinet wall mounting

Protection class:IP20

Housing:Metal modular drive chassis

Environmental

Operating temperature:0℃ ~ +40℃

Storage temperature:-40℃ ~ +85℃

Ambient humidity:5~95% non‑condensing

Certification:CE

Status:Original discontinued Lenze drive spare

Installation

Install in ventilated cabinet, separate power and control wiring.

Complete motor parameter setting and auto-tune after wiring. Use external brake resistor for frequent deceleration loads.

Interface

3-phase power terminals, motor output terminals, analog/digital I/O, fieldbus expansion slot.

Diagnostic

Overcurrent fault: Short motor cable or damaged motor insulation.

DC bus overvoltage: Regenerative energy without brake processing.

Communication failure: Wrong bus address or loose connector.

Overheat alarm: Blocked fan or poor ventilation.

Product Brief

Lenze EVF9327-EH 9300 vector frequency inverter, high dynamic AC drive for packaging and printing machine maintenance replacement.