Emerson SP1404 AC Variable Speed Drive

FAQ

Q1: What is the Emerson SP1404 used for?
The SP1404 is designed to control AC induction motors and permanent magnet servo motors in applications such as conveyors, pumps, compressors, hoists, packaging equipment, printing machinery, and industrial automation systems.

Q2: What type of drive is the SP1404?
The SP1404 is a Unidrive SP universal AC variable speed drive that supports open-loop, closed-loop, vector, and servo control for demanding industrial applications.

Q3: What are the electrical ratings of the SP1404?
The drive operates from a 380–480 VAC three-phase power supply and provides 6.9 A continuous output current (Normal Duty), 5.8 A (Heavy Duty), and 10.1 A peak current, supporting motors up to 3.0 kW (5 HP).

Q4: What are the dimensions and weight of the SP1404?
The SP1404 measures approximately 100 × 386 × 219 mm and weighs approximately 5.0 kg.

Q5: Which motor control modes are available?
The drive supports Open Loop V/Hz, Open Loop Vector, Rotor Flux Control (RFC), Closed Loop Vector, and Servo Control, making it suitable for both induction motors and permanent magnet servo motors.

Q6: Which communication protocols does the SP1404 support?
The SP1404 includes Modbus RTU (RS-485) as standard and supports optional communication modules for EtherCAT, EtherNet/IP, PROFINET, PROFIBUS-DP, DeviceNet, CANopen, Modbus TCP/IP, and SERCOS.

Q7: Does the SP1404 include braking and safety functions?
Yes. The drive features a built-in dynamic braking transistor and supports Safe Torque Off (STO), providing improved machine safety and braking performance.

Q8: What are the advantages of the Emerson SP1404?
The SP1404 offers high-performance vector and servo control, high overload capability, integrated braking, flexible communication options, encoder feedback support, compact panel-mount design, and reliable operation for demanding industrial automation applications.