Siemens
6SE6 440-2UD21-5AA1
Micromaster 440 AC Drive, Frequency Inverter

• Output Rating: 0.55kW, 2HP
• Input: 380-480V AC +/-10%, 3-PH, 47-63 Hz
• Output: 0 - Input Voltage (380-480V AC +/-10%), 3-PH, 4.1A, 0-650 Hz

• Control
  • 6 Isolated and switchable NPN/PNP digital inputs
  • 2 Analog Inputs (0 – 20 mA)
  • 2 Analog Outputs
    • ADC1: 0 – 10 V, 0 – 20 mA and -10 to +10 V
    • ADC2: 0 – 10 V, 0 – 20 mA
  • 3 Relay Outputs
  • Internal RS485 interface (port)
• Performance Characteristics
  • Vector Control
    • Sensorless Vector Control (SLVC)
    • Vector Control with encoder (VC)
  • V/f Control
    • Flux Current Control (FCC) for improved dynamic response and motor control
    • Multi-point V/f characteristic
  • Automatic restart
  • Flying restart
  • Slip compensation
  • Fast Current Limitation (FCL) for trip-free operation
  • Motor holding brake
  • Built-in DC injection brake
  • Compound braking to improve braking performance
  • Built-in braking chopper (Frame Sizes A to F) for resistor braking (dynamic
  • braking)
  • Ramp function generator
  • Technology controller (PID)
  • Parameter set switch-over
  • Motor data sets (DDS)
  • Command data sets and setpoint sources (CDS)
  • Free Function Blocks
  • DC link voltage controller
  • Kinetic Buffering
  • Positioning Ramp down
• Protection characteristics
  • Overvoltage/undervoltage protection
  • Overtemperature protection for the inverter
  • Ground fault protection
  • Short-circuit protection
  • i2t thermal motor protection
  • PTC/KTY84 for motor protection