Enhance your motor control applications with this advanced Frequency Converter, model AT4-4000X (AT904-4KW), designed to deliver precise and reliable performance for a variety of industrial and general-purpose uses. Featuring an 8-segment programmable multi-stage speed control with selectable torsion or speed control modes, this frequency converter offers flexible operation tailored to your specific needs. Key Features: · 8-Segment Programmable Multi-Stage Speed Control: Allows customized speed adjustments with options for torsion or speed control modes, providing versatile motor management. · Comprehensive Communication Interfaces: Equipped with standard RS485 RTU mode and multiple analog inputs/outputs including 0-5V, 0-10V, 4-20mA, and 0-20mA for seamless integration and control. · Advanced PID Control Functions: Supports constant pressure water supply, wind pressure regulation, and constant pressure control, ensuring stable and efficient operation with low noise and minimal electromagnetic interference. · Built-In High-Frequency Filter: Effectively suppresses high-frequency harmonics, reducing power grid impact and electromagnetic interference for improved system reliability. · Robust Protection Mechanisms: Offers comprehensive safeguards including overcurrent, overvoltage, undervoltage, module failure, overheating, short circuit, phase loss, and abnormal parameter adjustment protections to ensure safe and stable operation. · Wide Application Range: Ideal for controlling the start, stop, speed adjustment, and directional rotation (CW and CCW) of motors, widely used in fans, water pumps, air compressors, and other industrial equipment. · Durable ABS Plastic Shell: Provides a sturdy and reliable enclosure that protects internal components while maintaining a lightweight design. · Efficient Output Control: Utilizes PWM control for output voltage adjustment and V/F open loop control method, supporting a DC voltage-type power supply for consistent motor performance. Specifications: · Model: AT4-4000X (AT904-4KW) · Input Voltage: Single-phase 220VAC, 50/60Hz · Output Voltage: 3-phase 0-380VAC, 0-400Hz · Maximum Output Current: 20A · Adapted Motor Power: 4KW (6HP) · Filter: Built-in high-frequency filter · Control Method: V/F open loop · Output Voltage Adjustment: PWM control · Material: ABS plastic shell · Size: Approx. 241 x 151 x 171mm (9.5 x 5.9 x 6.7 inches) Package Includes: · 1 x Frequency Converter AT4-4000X (AT904-4KW) This frequency converter combines advanced control features, robust protections, and flexible connectivity to optimize motor operation and enhance equipment efficiency. Its compact design and durable construction make it an excellent choice for various industrial motor control applications.