Product Description
Emerson SKC3400220 Commander SK AC Drive
Product Overview
- The Emerson SKC3400220, branded under Control Techniques (a Nidec company), is a Commander SK Series AC Drive designed for precise motor control in industrial automation applications. This variable speed drive (VSD) supports open-loop control for three-phase induction motors, making it suitable for applications such as pumps, fans, conveyors, and mixers. It is a compact, wall-mounted drive widely used in industries like manufacturing, material handling, and process automation.
Technical Specifications
- The SKC3400220 has the following specifications based on documentation from Emerson, Control Techniques, and industry sources:
| Specification | Details |
|---|---|
| Model/Part Number | SKC3400220 |
| Manufacturer | Emerson (Control Techniques / Nidec) |
| Description | Commander SK AC Drive, Variable Speed |
| Series | Commander SK, Size C |
| Nominal Input Voltage | 380–480 VAC (3-phase) |
| Input Voltage Range | 342–528 VAC |
| Input Frequency | 48–62 Hz |
| Input Current | 7.3 A (typical) |
| Output Power | 2.2 kW (3 HP) |
| Output Current | 5.1 A (continuous), 7.7 A (60 sec overload) |
| Output Voltage | 0–480 VAC |
| Output Frequency | 0–1500 Hz |
| Switching Frequency | 3 kHz (default, configurable up to 16 kHz) |
| Motor Control Mode | Open-loop vector or V/Hz control |
| Digital I/O | 4 digital inputs, 1 digital output, 1 relay output (2 A, 240 VAC) |
| Analog I/O | 2 analog inputs (0–10 V, 4–20 mA), 1 analog output (0–10 V, 4–20 mA) |
| Communication | Modbus RTU / RS-485 (optional fieldbus modules: Profibus, DeviceNet) |
| Protection Rating | IP20 |
| Operating Temperature | 0°C to 40°C (32°F to 104°F), derating above 40°C |
| Dimensions | Height: 260 mm (10.2 in) Width: 115 mm (4.5 in) Depth: 175 mm (6.9 in) |
| Weight | Approx. 2.1 kg (4.6 lb) |
| Mounting | Wall-mounted (DIN rail optional) |
Additional Details
- The SKC3400220 includes the following additional information based on documentation from Emerson, Control Techniques, Radwell, and other industry sources:
- Function: Controls speed and torque of three-phase induction motors for applications like pumps, fans, and conveyors; supports energy-efficient operation with open-loop vector or V/Hz control; includes dynamic braking resistor capability for rapid deceleration.