Key Technical Specifications: Parameter Description / Value Product Code ACH550-01-06A9-4 Product Type HVAC Variable Frequency Drive (VFD) / AC Drive Rated Power 3.0 kW (4 HP) Output Current 6.9 A (at 400V, continuous duty) Supply Voltage 3-phase, 380 - 480 V AC (±10%), 50/60 Hz Output Voltage 0 - Supply Voltage (Uin) Output Frequency 0.1 - 500 Hz (typical HVAC range: 0.1 - 120 Hz) Control Method Sensorless Flux Vector Control (FVC): Delivers precise speed and torque control for superior performance in variable torque (fan/pump) applications. Enclosure IP20 / UL Type 1 (Open Chassis). Must be installed in a proper control cabinet to provide protection against dust, moisture, and physical contact. Frame Size R1 Key HVAC Features - Adaptive Programming (AP): Intuitive setup via plain-language questions, simplifying commissioning. - Energy Optimizer: Automatically minimizes motor and drive losses for maximum energy efficiency. - Dedicated Application Macros: Pre-programmed for common HVAC functions (Pump, Fan, HVAC). - Dual PID Controllers: With cascade control, sleep/wake functions, and PID autotune for precise pressure, flow, or temperature regulation. - Flying Start: Enables smooth connection to a spinning motor. - Flexible I/O: 4 Digital Inputs, 2 Analog Inputs (configurable as 0-10V or 0/4-20mA), 1 Analog Output, 2 Relay Outputs. - Motor Thermal Protection: Includes I²t model and direct PTC thermistor input. Built-in Communication - BACnet MS/TP: Native integration with Building Automation and Control Networks (BACnet). - Modbus RTU (RS-485): Standard for industrial and building management systems. - Status LED: Flashing LED for visual indication of drive status and fault codes. Motor & Drive Protection Comprehensive protection including: overcurrent, overvoltage, undervoltage, ground fault, short circuit, input/output phase loss, motor overload (I²t), and stall prevention. Cooling Method Convection cooling (fanless) for Frame Size R1, ensuring silent operation ideal for mechanical rooms. Ambient Conditions Operating Temperature: -10°C to +50°C (14°F to 122°F) without derating. Full rated current up to +40°C. Storage: -40°C to +70°C. Max humidity: 95% non-condensing. Standards & Approvals CE, cULus Listed, RoHS compliant. Meets key global standards for HVAC equipment.