Digital guide
You are here:
CONTROL TECHNIQUES UNI4402
Product Name: Unidrive Classic Series Variable Frequency AC Drive (UNI4402)
Product Introduction: A heavy-duty variable frequency drive from the Unidrive Classic series, designed for reliable speed and torque control of large AC induction motors in demanding industrial applications. It offers robust performance and flexible control options.
Technical Specifications:
- Supply Voltage: 380–480VAC (3-phase)
Detailed content
- Power Rating: 55kW (75HP)
- Continuous Output Current: 124A
- Control Modes: Open-loop V/Hz and closed-loop vector control
- Enclosure Rating: IP00 (open chassis)
- Cooling Method: Forced-air cooling with internal fan
- Ambient Temperature: -10°C to +40°C (no de-rating)
- Certifications: CE, UL, RoHS compliant
Functional Features:
- Robust overload capacity for heavy starting and cyclic loads
- Built-in EMC filtering to minimize electrical noise
- User-friendly keypad interface for parameter configuration
- Comprehensive motor protection (overload, over-temperature, short-circuit)
- Flexible I/O for integration with PLCs and external control systems
- Durable design for reliable operation in industrial environments
Application Scenarios:
- Large pump and fan systems
- Heavy-duty conveyors and material handling
- Crushers, mixers, and agitators
- Machine tools (lathes, mills, grinders)
- HVAC and building automation
- General-purpose industrial motor control
