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FR-F740-18.5K-CHT1

The FR-F740-18.5K-CHT1 is an 18.5kW (25HP), 400V class, compact inverter from Mitsubishi’s FR-F700 Series, designed for high-efficiency motor speed control in industrial applications. It features advanced sensorless vector control and energy-saving optimization, making it ideal for pumps, fans, conveyors, and other machinery requiring precise and reliable variable speed operation.

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Key Features
1. High-Performance Motor Control
Sensorless vector control: ±0.2% speed accuracy (without encoder)

Auto-tuning: Automatically identifies motor parameters

150% torque boost (for 3 seconds at startup)

2. Energy Efficiency
Energy-saving mode: Reduces power consumption by up to 30%

Regenerative braking: Compatible with FR-ABR braking resistors

Standby power consumption: <1W (when enabled)

3. Built-in Smart Functions
PID control: For pressure/flow regulation

Multi-speed operation: 7 preset speeds

RS-485 communication (Modbus RTU protocol)

4. Robust Protection & Durability
Overcurrent/Overvoltage/Undervoltage protection

Ground fault detection

Heatsink overheating prevention

IP20 protection rating (enclosed)

5. Connectivity & Integration
Built-in RS-485 (Modbus RTU protocol)

Optional communication cards:

CC-Link, PROFIBUS, Ethernet/IP

Analog/digital I/O:

2 analog inputs (0-10V/4-20mA)

4 digital inputs

Technical Specifications
Parameter Specification
Input Voltage 3-phase 380-480V AC (±10%), 50/60Hz
Output Power 18.5kW (25HP)
Output Current 38A
Frequency Range 0.5-400Hz
Control Method Sensorless Vector
Dimensions 220(W) × 320(H) × 175(D) mm