Glentek SMA6520 SERIES, Руководство по эксплуатации и обслуживанию

Страница: 4 / 22

Glentek Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
SMA6520 SERIES MANUAL
Introduction
Glentek’s SMA6520 series linear servo amplifiers provide the optimum solution for applications
which require high current loop bandwidth, low radiated electrical noise and zero crossover distor-
tion. These amplifiers incorporate our latest generation ISO-BIAS current sense technology which
provide one of the lowest drift linear amplifiers on the market today. These amplifiers are con-
structed using surface mount technology and incorporate the latest in heat transfer technology
which make them one of the most powerful amplifiers for a given form factor.
Typical applications which are ideal for the SMA6520 series amplifiers include low inductance/
resistance brushless and brush motors (linear or rotary), high resolution linear brushless motor
stages and voice coil motors.
The SMA6520 series is highly configurable and can operate in the following modes:
1. 2-phase sinusoidal commutation (-11 plug-in board) of three-phase brushless servo mo-
tors. In this mode, the amplifier accepts two +/- 10V analog inputs as a current command
reference for two of the motor phases. The third phase is derived within the amplifier from
the two reference phases. This amplifier does not use any feedback devices and is used
with controllers that provide the commutation.
2. Trapezoidal commutation (-12 plug-in board) of three-phase brushless servo motors. In this
mode, the amplifier accepts a +/- 10V analog input as a current command reference and
utilizes the Hall Sensors which are mounted on the motor for commutation of the motor in
current (torque) mode.
3. The driving of voice coils or DC brush servo motors (-11 plug-in board) in current (torque)
mode. In this mode, the amplifier accepts a +/- 10V analog input as a current command
reference.
1