The Lenze / AC Tech ESV402N04TXB is a 4.0 kW (5.5 HP) frequency inverter drive engineered for precise AC motor speed control across industrial applications. Operating from 400–480 V AC three-phase input, it delivers 0–400 V AC adjustable output with frequency range of 0–600 Hz, enabling flexible motor performance optimization. The drive combines V/f and sensorless vector control algorithms with a 9.5 A continuous output current rating and 150% overload capacity for 60 seconds.
Technical Specifications
• Input: 400–480 V AC, 3-phase, 50/60 Hz nominal
• Output: 0–400 V AC adjustable; 0–600 Hz adjustable frequency
• Power Rating: 4.0 kW; 5.5 HP
• Continuous Output Current: 9.5 A
• Overload Capacity: 150% for 60 seconds
• Output Frequency Resolution: 0.01 Hz
• Efficiency: >95% at full load
• Input Power Factor: >0.95 at nominal load
• Operating Temperature: −10 °C to +50 °C (derating above 40 °C)
• Storage Temperature: −20 °C to +60 °C
• Humidity: 0–95% non-condensing
• Altitude: Up to 1000 m without derating
• Enclosure: IP20
• Cooling: Forced air (integrated fan)
• Weight: Approximately 3.5 kg
• Mounting: DIN rail or panel mountable
– Key Features
• Dual control modes: V/f and sensorless vector control
• Adjustable acceleration/deceleration ramps
• DC injection braking and flying start capability
• PID process control with multiple preset speeds
• Motor data auto-tuning
• Comprehensive protection: overvoltage, undervoltage, overcurrent, electronic thermal overload, heatsink overtemperature, short circuit, ground fault
– Interfaces & Connectivity
• Digital Inputs: 4–6 configurable (Start/Stop, Forward/Reverse, Fault Reset, Speed Select)
• Digital Outputs: 1–2 configurable (Run, Fault, At Speed)
• Analog Inputs: 2 typical (0–10 V, 4–20 mA)
• Analog Outputs: 1 typical (0–10 V, 4–20 mA)
• Relay Outputs: 1–2 for fault/external control
• Communication: RS-485 (Modbus RTU standard); optional fieldbus modules for EtherNet/IP, PROFINET, DeviceNet, CANopen
– Typical Applications
Pump and fan speed control, conveyor systems, material handling equipment, and process automation requiring precise motor regulation with integrated diagnostics and multi-protocol connectivity.
