EMERSON SKB3400150 AC Drive

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EMERSON SKB3400150 AC Drive (Variable Frequency Drive - VFD)

Product Overview

The EMERSON SKB3400150 is a compact, programmable AC drive (also called a variable frequency drive or VFD) designed for industrial motor control applications. It is part of Emerson’s Commander SK series, offering V/F (voltage-to-frequency) control and basic vector control for precise speed regulation of three-phase induction motors.

Key Features & Technical Specifications

1. Electrical & Performance Specs

• Power Rating: 1.5 kW (2 HP) 

• Input Voltage: 380–480V AC (±10%), 3-phase, 50/60Hz 

• Output Current: 3.8A (continuous), 5.2A (peak

• Control Method: V/F open-loop, sensorless vector control 

• Switching Frequency: Up to 1500Hz (adjustable for noise reduction) 

2. Built-in Components

• EMC Filter: Reduces electromagnetic interference (compliance with industrial standards) 

• Modbus RTU Interface: For PLC/DCS communication 

• Braking Unit & DC Reactor: Enhances dynamic braking performance 

3. Environmental & Mechanical

• Enclosure: IP20 (dust-resistant) / Optional IP54 keyboard for remote operation 

• Operating Temperature: -10°C to +50°C (derating may apply above 40°C) 

• Cooling: Fan-cooled (thermal management for heavy-duty cycles) 

4. Programming & Expansion

• SmartStick & LogicStick:

  • SmartStick: Backup/transfer drive parameters via USB 

  • LogicStick: Ladder logic programming (eliminates need for external PLC) 

• Bus Communication: Supports Profibus, DeviceNet, CANopen, Ethernet 

Applications

1. Pump & Fan Control: Energy-saving speed regulation in HVAC systems .

2. Conveyors & Material Handling: Precise motor speed control for manufacturing lines .

3. Machine Tools: Compatible with lathes, CNC machines, and compressors .

Installation & Usage Notes

1. Mounting:

   • DIN rail or panel-mounted (ensure vertical installation for optimal cooling) .

2. Wiring:

   • Use shielded cables for motor/signal lines to reduce EMI .

3. Safety:

   • Disconnect power before servicing (capacitors retain charge for 10+ minutes) .