Product Analysis: Nidec Control Techniques SP1406
The SP1406 represents the highest power output available in the Frame 1 Unidrive SP series from Nidec Control Techniques. This compact powerhouse provides 4.0kW (5.0HP) of continuous power for 400V systems. It is the ultimate space-saving solution for applications that demand high torque and precision, such as small extruders, high-speed centrifuges, and industrial mixers. Like all Unidrive SP models, it offers a «Universal» approach to motor control, handling anything from basic fans to high-dynamic servo motors.
High Power Density and Intelligent Control
The SP1406 is designed for maximum efficiency in small control cabinets. Despite its 9.5A output, it maintains the slim Frame 1 profile, allowing engineers to pack more power into a smaller area. The drive’s internal intelligence includes a universal encoder interface that supports 14 different feedback types, including incremental, SinCos, SSI, and EnDat. This ensures the SP1406 can be used with almost any feedback-equipped motor globally, providing absolute position accuracy and superior speed regulation.
Key Technical Characteristics
- Part Number: SP1406.
- Rated Power: 4.0 kW / 5.0 HP.
- Output Current: 9.5 Amperes (Heavy Duty).
- Voltage: 3-Phase 380V to 480V.
- Mounting: Surface or through-panel mounting.
- Expansion: 3 SM-option module slots.
- Digital Interface: Support for LED, LCD, or PC-based commissioning.
- Braking: Internal braking transistor included as standard.
Advanced Performance and Longevity
Built for the most demanding 24/7 manufacturing environments, the SP1406 utilizes high-grade semiconductors and long-life capacitors. Its software features, such as Full Torque at Zero Speed (in closed-loop mode), are essential for hoisting and tension control applications. The ability to add an SM-Applications module provides a fully programmable environment (SyPTPro), allowing the drive to handle the machine’s entire logic sequence independently of an external PLC, significantly reducing system latency.
| Feature | Value |
| Starting Torque | Up to 175% in RFC/Closed Loop |
| Enclosure Protection | IP20 (Standard) |
| Mass | Approx. 3.2 kg |
Technical Note
When deploying the SP1406 at its maximum capacity, ensure proper ventilation in the control cabinet. The through-panel mounting option is highly recommended to move the heat dissipation outside the enclosure. For high-vibration applications, ensure the drive is securely fastened to a rigid backplate to maintain the integrity of the internal electronic bus connections.
Need more references from this brand? Explore our complete Nidec catalog here.
