Siemens MICROMASTER 440 Operating Instructions Manual page 17

Issue B1
Performance Characteristics
Ø Sensorless Vector Control
Ø Flux Current Control (FCC) for improved dynamic response and motor control
Ø Fast Current Limitation (FCL) for trip-free operation
Ø Built-in DC injection brake
Ø Compound braking to improve braking performance
Ø Acceleration/deceleration times with programmable smoothing
Ø Closed-loop control using PID (Proportional, Integral and Differential) control
loop function, with auto-tuning
Ø Built-in braking chopper
Ø Selectable up and down ramps
Ø 4-point ramp smoothing
Ø Multi-point V/f characteristic
Ø parameter sets which can be switched, allowing one inverter to control several
alternative processes
Protection characteristics
Ø Overvoltage/undervoltage protection
Ø Overtemperature protection for the inverter
Ø Ground fault protection
Ø Short-circuit protection
2
Ø i
t thermal motor protection
Ø PTC/KTY for motor protection
MICROMASTER 440 Operating Instructions
6SE6400-5AC00-0BP0
1 Overview
17