GLENTEK Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
6
Chapter One: Description, Features and Specifications
1.1 Description:
This brush type servo amplifier system has been designed to offer you, our customer, a
large degree of flexibility and customization with a standard, in stock product. The amplifier is
of a modular, ‘open’ construction for ease of installation and service.
Each amplifier accepts a bipolar DC control input. The polarity of this signal determines
the direction of rotation. This signal may be used to control either the velocity (RPM) or the
current (torque) of the motor(see Servo Loops, section 2.3). The amplifier provides
P
ulse-W
idth M
odulated (PWM) power to the motor in proportion to the input signal.
Each amplifier has several ‘logic’ inputs to stop the motor in one or both directions.
These inputs are very useful for connecting to mechanical limit switches or digital equipment.
Each amplifier has several protection circuits to protect the amplifier, motor, and operator
from almost any kind of fault. Several LED’s show what fault has occurred, and a separate
output can be used to signal other equipment.
1.2 Features:
•
Ergonomic design:
Easy access to connections, adjustments, and test points.
•
Wide operating
24-220VDC.
buss voltage:
•
Complete isolation:
Complete isolation from input to output.
•
Signal input:
Input has up to 15,000A/V gain and will /-13VDC.
•
Dual mode operation: The amplifier may be configured for velocity (RPM) control or
current (torque) control.
•
BEMF velocity mode This mode uses back EMF to deduce motor speed for feedback with
IR Comp.
control. Optional IR compensation yields 3% or better velocity
(Factory Option):
control without a tachometer.
•
Current limit:
Maximum motor current is adjustable.
•
Digital limit/enable
Three separate logic inputs can stop the motor in either or both
Inputs:
directions. Inputs may be configured for active-high or active- l o w ,
pull-up or pull-down termination, and a 0 to +5VDC or 0 to +15VDC range. See Logic Input
Configuration, section 5.2.
CHAPTER 1: DESCRIPTION, FEATURES AND SPECIFICATIONS
Содержание SMA7215
Страница 30: ...GLENTEK Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 30 Appendix Amplifier Drawings...
Страница 31: ...31 GLENTEK Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 SMA7215 MANUAL...
Страница 32: ...GLENTEK Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 32 APPENDIX AMPLIFIER DRAWINGS...
