Glentek SMB9675-1A-1-7700, Руководство по установке и эксплуатации

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www.glentek.com Chapter One
MANUAL# 9675-1035-000-A 5
Chapter One: General
1.1 Overview
The Glentek Inc. SMB9675-1A-1-7700 spindle drive uses flux vector technology to close a torque
(current) feedback loop. When applied to a three phase induction motor, the result is servo motor like
performance from a standard three phase induction motor. The Digital Signal Processor (DSP) based
spindle drive uses its high speed math processing capability to continuously calculate flux and torque
vectors and to maintain a constant 90 degree phase difference between the vectors. This technique
allows torque control from zero speed to base speed and above. Encoder feedback provides the
shaft position data needed to calculate the vectors and velocity data, thus, Vector Control allows
precise speed control down to and including zero speed of an induction motor.
The SMB9675-1A-1-7700 spindle drive can operate in sensor-less mode (no feedback is needed).
This mode of operation is usually referred to as inverter mode or VFD (Variable Frequency Drive)
mode. With advanced mathematic algorithms and latest DSP technology, the Glentek SMB9675-1A-
1-7700 is optimized to produce a steady starting torque from standstill right up to full speed with high
efficiency. The applied frequency and voltage are increased at a controlled rate and ramped up to
accelerate the load without drawing excessive current.
1.2 Intended Application
The SMB9675-1A-1-7700 is intended as a drop-in replacement spindle drive for FADAL
ENGINEERING VMC’s. See the part numbers listed in the Mode of Operations section (section 1.3)
for the available configurations.