Emerson SP4403 AC Variable Speed Drive / Servo Drive

FAQ

Q1: What is the Emerson SP4403 used for?
The SP4403 is used for controlling high-power AC motors and servo motors in applications such as conveyors, pumps, compressors, cranes, hoists, extruders, winders, machine tools, and automated production systems.

Q2: What type of product is the SP4403?
The SP4403 is a Unidrive SP universal AC variable speed drive and servo drive that combines inverter control, advanced motion control, and programmable automation functions for industrial applications.

Q3: What are the electrical ratings of the SP4403?
The drive operates from a 380–480 VAC three-phase power supply and provides 104 A Normal Duty output current and 96 A Heavy Duty output current, supporting motors up to 55 kW (75 HP).

Q4: What are the dimensions and weight of the SP4403?
The SP4403 has approximate dimensions of 330 × 510 × 298 mm and weighs approximately 34.0 kg.

Q5: Which motor control modes are supported?
The SP4403 supports V/Hz control, open-loop vector control, closed-loop vector control, rotor flux control (RFC), servo control, and regenerative control, allowing flexible operation with different motor types.

Q6: Which communication protocols are available?
The SP4403 supports Modbus RTU via RS-485 as standard and can be expanded with optional communication modules including EtherCAT, EtherNet/IP, PROFINET, PROFIBUS-DP, DeviceNet, CANopen, and Modbus TCP/IP.

Q7: Does the SP4403 include braking and safety functions?
Yes. The SP4403 supports Safe Torque Off (STO) and includes a built-in dynamic braking transistor for controlled stopping and improved system performance.

Q8: What are the advantages of the Emerson SP4403?
The SP4403 provides high-power motor control, excellent overload capability, encoder feedback support, flexible communication expansion, built-in PLC functions, integrated safety features, and reliable operation for demanding industrial automation and motion control systems.

Emerson SP4403

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