Product Overview: Nidec Control Techniques SP3403
The SP3403 is the most powerful model in the Frame 3 Unidrive SP series by Nidec Control Techniques. Engineered for 400V industrial networks, this high-performance AC drive provides a rated output of 22kW (30HP). As a «Universal Drive,» the SP3403 is designed to provide ultimate flexibility, supporting high-precision control for induction motors, permanent magnet servo motors, and even regenerative energy modes within a single hardware platform. It is a critical component for high-torque applications such as heavy-duty extruders, industrial mixers, and large-scale material handling systems.
Universal Control and Scalable Intelligence
The core strength of the SP3403 lies in its advanced control processor, which allows users to select between Open Loop, Closed Loop Vector, Rotor Flux Control (RFC), and high-dynamic Servo modes via simple parameter adjustments. This versatility allows facilities to standardize on a single drive type for diverse motor technologies. The SP3403 features three internal slots for SM-Option Modules, facilitating easy expansion for fieldbus communications (ProfiNet, EtherCAT, Ethernet/IP) or the addition of localized PLC functionality for decentralized control.
Key Technical Characteristics
- Part Number: SP3403.
- Frame Size: 3.
- Rated Capacity: 22 kW / 30 HP.
- Output Current: 56 Amperes (Continuous).
- Input Voltage: 3-Phase 380V to 480V AC.
- Control Modes: Open loop, RFC, Closed loop vector, Servo.
- Expansion Slots: 3x SM-Option slots.
- Safety: Integrated Safe Torque Off (STO).
- Interface: Universal encoder port supporting 14 feedback types.
Performance and Industrial Reliability
Built for the rigors of 24/7 manufacturing, the SP3403 includes a Smartcard for instant parameter cloning and data backup, ensuring minimal downtime during maintenance. Its high-resolution analog inputs and high-speed digital I/O make it suitable for synchronized motion applications. The drive’s advanced thermal management and robust capacitor bank ensure a long service life even in demanding industrial environments.
| Feature | Detail |
| Overload Capacity | 150% for 60s (Heavy Duty) |
| Mass | Approx. 15.0 kg |
| Braking | Integrated brake transistor |
Frequently Asked Questions
Can the SP3403 be used in vertical lifting? Yes, its high-torque RFC and closed-loop modes are ideal for hoisting applications. Does it support Modbus? Modbus RTU is standard via the integrated RS485 port.
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