Emerson SP4401 AC Variable Speed Drive / Servo Drive

FAQ

Q1: What is the Emerson SP4401 used for?
The SP4401 is used for controlling high-power AC motors and servo motors in industrial applications such as conveyors, pumps, compressors, cranes, hoists, extruders, winders, and automated production equipment.

Q2: What type of product is the SP4401?
The SP4401 is a Unidrive SP universal AC variable speed drive and servo drive that combines inverter control, motion control, and programmable automation functions in one platform.

Q3: What are the electrical ratings of the SP4401?
The drive operates from a 380–480 VAC three-phase power supply and provides 68 A Normal Duty output current and 60 A Heavy Duty output current, suitable for motors up to 37 kW (50 HP).

Q4: What are the dimensions and weight of the SP4401?
The SP4401 has approximate dimensions of 310 × 547 × 298 mm and weighs approximately 30 kg.

Q5: Which motor control modes are supported?
The SP4401 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 SP4401 includes Modbus RTU via RS-485 as standard and supports optional industrial communication modules such as EtherCAT, EtherNet/IP, PROFINET, PROFIBUS-DP, DeviceNet, CANopen, and Modbus TCP/IP.

Q7: Does the SP4401 include braking and safety functions?
Yes. The SP4401 includes a dynamic braking transistor, supports Safe Torque Off (STO), and provides integrated protection and diagnostic functions for industrial applications.

Q8: What are the advantages of the Emerson SP4401?
The SP4401 provides high-performance motor control, high overload capability, flexible communication options, encoder feedback support, built-in PLC functions, integrated braking capability, and reliable operation for demanding industrial automation systems.