Figure 1.1 SMC20 Front Panel
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Description
The Vickers SMC20 is a stand-alone,
two-axis precision motion controller. It
has a built-in electrical power supply,
and connects to several other
components in a typical motion control
system:
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A power source.
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A motion actuator for each axis: (any
combination of the following)
– a drive amplifier and electric servo
motor, or
– a hydraulic servo valve and cylinder
or motor.
– a hydraulic proportional valve and
amplifier with cylinder or motor.
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A position feedback sensor for each
axis of motion.
In addition, the SMC20 includes
communication ports for connecting it to
the Hand-Held User Terminal and
printer.
The motion controller occupies an
8
″
x 3.5
″
x 11.5
″
case that can be
mounted in any standard NEMA-type
cabinet or mounted flat using the
optional hinge mounting.
Figure 1.1 shows the front panel and
connections.
Features
The SMC20 motion controller presents
several features:
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High performance for electric and
hydraulic motion control applications.
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Two-axis event coordination capability
linked via programmable digital I/O.
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Power supply, controller, and
programmable I/Os in one package.
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Hand-Held Operator Interface
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Dual processor design – 16 bit
interface microprocessor and 32 bit
digital signal processor.
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Plug-in option boards for position
sensors and communications.
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Discrete, programmable digital I/O.
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+10 V differential or single–ended
output.
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0+24 mA, 0+50 mA, 0+100 mA output
command. (optional) (Model code
selectable)
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Proportional, integral, and derivative
(PID) compensation
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Direction sensitive gains to
compensate for unequal area
cylinders. Also Dither and Gain Break
are available in Hydraulic mode.
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Programmability in standard
engineering units.
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Ability to change gains within a profile
to compensate for load changes, etc.
