MITSUBISHI FR-A740-3.7K-CHT U97L08011 Product Description

Overview

MITSUBISHI FR-A740-3.7K-CHT U97L08011 is a high-performance three-phase 400V class inverter from Mitsubishi FR-A700 series, designed for 3.7kW asynchronous motor speed regulation. MITSUBISHI FR-A740-3.7K-CHT U97L08011 adopts advanced magnetic flux vector control technology and delivers high starting torque for heavy load startup conditions. MITSUBISHI FR-A740-3.7K-CHT U97L08011 is widely used in demanding industrial automation equipment requiring stable and precise motor speed control.

Features

MITSUBISHI FR-A740-3.7K-CHT U97L08011 supports V/F control, general magnetic flux vector control and optimum excitation control for flexible matching of different load types. It can output high torque at low speed, realizing stable heavy-load starting without encoder feedback. The built-in RS485 communication interface supports Modbus RTU protocol for data exchange with PLC and upper monitoring systems. It is equipped with a local operation panel for parameter setting, running status display and fault checking on site. MITSUBISHI FR-A740-3.7K-CHT U97L08011 integrates comprehensive protection functions including overcurrent, overvoltage, undervoltage, overheat, overload and stall prevention. It supports multi-speed operation, instantaneous power failure restart and automatic motor tuning. The inverter monitors the aging degree of internal capacitors and cooling fans to output pre-warning signals for predictive maintenance. MITSUBISHI FR-A740-3.7K-CHT U97L08011 can be expanded with optional communication cards for CC-Link, PROFIBUS and other industrial bus networks.

Specs

Brand: MITSUBISHI Model: FR-A740-3.7K-CHT Serial code: U97L08011 Product series: FR-A700 Product category: AC inverter Applicable motor power: 3.7kW Input: Three-phase 380V to 480V AC Output frequency range: 0.2Hz to 400Hz Control mode: V/F control, magnetic flux vector control Communication: Built-in RS485, Modbus RTU Protection class: IP20 Cooling: Built-in cooling fan

Principle

MITSUBISHI FR-A740-3.7K-CHT U97L08011 converts fixed three-phase AC power into adjustable frequency and adjustable voltage PWM output to drive the asynchronous motor. It receives speed commands from the operation panel, analog signals or communication instructions, and calculates the optimal output voltage and frequency according to the selected control mode. MITSUBISHI FR-A740-3.7K-CHT U97L08011 continuously monitors current, voltage and temperature signals during operation and triggers protection actions when abnormal values are detected. It uploads running data, torque information and fault codes through communication ports to realize remote control and equipment status traceability.

Applications

MITSUBISHI FR-A740-3.7K-CHT U97L08011 is suitable for heavy-load and high-precision speed regulation occasions. It is commonly used in lifting machinery, extruders, conveyors, packaging equipment, pumps and fans in metallurgy, chemical, food and machinery manufacturing industries. It can cooperate with Mitsubishi PLC and HMI to build a complete variable frequency speed control system for production lines.