Product Overview: The Control Techniques UNI1405VTC is a robust and versatile AC drive from the Unidrive series, specifically designed for controlling three-phase AC induction motors in variable torque applications. This inverter is engineered to deliver precise speed and torque control, optimizing motor performance and energy efficiency for a wide range of industrial uses, particularly those involving fans and pumps. It supports multiple operating modes, including open-loop V/F control and advanced closed-loop flux vector control, offering flexibility for various application needs. With features like intelligent autotuning, thermal modeling, and pre-configured MACROs, the UNI1405VTC ensures easy setup, reliable operation, and significant energy savings, making it a powerful solution for reducing operational costs and extending equipment lifespan in demanding industrial environments.

 
Technical Specifications:

 
Part Number: UNI1405VTC
 
Alternative Part Number: UNI1405
 
Manufacturer: Control Techniques (Nidec Corporation)
 
Product Series: Unidrive (UNI14xx series)
 
Type: AC Drive / Variable Frequency Drive (VFD) / Inverter
 
Rated Output Power (Constant Torque): 4 kW (5 HP)
 
Nominal AC Supply Voltage: 380-480V AC, 3-phase
 
Typical Input Current: 10 A
 
Maximum Continuous Input Current: 12 A
 
Amp Rating for Constant Torque: 9.5 A
 
Fuse Rating: 16 A
 
Operating Modes: Open-loop V/F control, Closed-loop flux vector control, Open-loop space vector control, Servo, Regeneration
 
Switching Frequency: Selectable up to 12 kHz (affecting output current ratings)
 
Control Inputs/Outputs: 3 Digital Inputs, 2 Analog Inputs, 3 Digital Outputs, 3 Analog Outputs
 
Feedback Types: Supports Encoder, Resolver
 
Protection Features: Overcurrent, Overvoltage, Undervoltage, Thermal protection
 
Protection Class: Typically IP20 (for cabinet installation), IP40 or IP54 with appropriate enclosure.
 
Dimensions (H x W x D): Approx. 335 mm x 95 mm x 200 mm (13.19 in x 3.74 in x 7.87 in) (Frame Size 1)
 
Weight: Approx. 4 kg (8.8 lbs)
 
Operating Temperature: 0 to 50 °C (with derating at 50°C for output current)
 
Communication: Optional RS232/485 serial communication, Fieldbus modules (e.g., CT Net, Profibus DP, Interbus-S, DeviceNet, Modbus, Modbus+)
 
Product Lifecycle: Discontinued by manufacturer, generally available through surplus or repair services.