Lenze EVF9327-EVV004 9300 Vector Frequency Inverter Unit

Module Feature

EVF9327-EVV004 belongs to Lenze classic 9300 vector series wall-mounted inverter. It supports V/F control and sensorless vector control, delivers stable torque across wide speed range. It integrates multi application macros, 2 sets of built-in PID function, motor auto-tune and rich programmable analog/digital I/O. The EVV004 suffix indicates special firmware version and fieldbus expansion readiness. Comprehensive protection includes overload, overcurrent, earth fault, phase loss and heatsink over-temperature. Widely stocked as spare for packaging machinery, textile line, material handling and process machine control cabinets.

Working principle

Three-phase AC supply is converted to DC bus by rectifier stage, IGBT inverter reconstructs adjustable frequency and voltage PWM waveform for induction motor. The vector control algorithm calculates motor flux and torque separately to achieve high dynamic response. Built-in fault detection circuit monitors operating condition and triggers safe stop when abnormality occurs. Parameter sets and fault history can be stored and uploaded via communication port.

Onboard components

Input rectifier assembly, IGBT power module, main control PCB, encoder interface, cooling fan, front keypad, EMC filter and metal sheet housing.

LED indicators

Front LEDs indicate power, run, fault and communication status.

Hardware self‑diagnosis

Drive monitors heatsink temperature, DC bus voltage, output current and internal circuit status. Ramp, protection and I/O mapping parameters can be modified via local keypad.

Programming software

Lenze EZMotion / Global Drive, used for parameter backup, macro configuration, fault log review and firmware update.

Electrical & Process Parameters

Model: EVF9327-EVV004 Brand: Lenze Device type: Vector frequency inverter Input voltage: 400V AC 3-phase Control mode: V/F, sensorless vector Function: Induction motor speed regulation, torque control and closed-loop process regulation

Mechanical & Structure

Mounting: Wall mounting inside control cabinet Protection class: IP20 Housing: Metal enclosure with forced cooling fan

Environmental

Operating temperature: 0℃ ~ +45℃ (derate above 40℃) Storage temperature: -40℃ ~ +85℃ Ambient humidity: 5~95% non‑condensing

Certification: CE, UL Status: Original Lenze automation spare

Installation

Cut off three-phase main power before replacement. Secure drive on mounting plate, connect power input, motor output and control wiring, run motor identification auto-tune, test speed regulation and protection trip function after commissioning.

Interface

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

Diagnostic

Overcurrent fault: Motor short circuit, cable insulation damage or acceleration ramp too short. Overheat alarm: Fan blocked, dust accumulation or insufficient cabinet ventilation. Parameter loss: Battery failure or memory corruption.

Product Brief

EVF9327-EVV004 inverter, Lenze 9300 vector high performance VFD spare for packaging, textile and conveyor machine variable speed control replacement.