User Manual

1
Automation Products Group, Inc.
1025 West 1700 North Tel. [phone]
Logan, UT 84321 USA Fax [phone]
w w w . a p g s e n s o r s . c o m
s a l e s @ a p g s e n s o r s . c o m
DCR-WEB Ultrasonic Web Controller
APG
Automation Products Group, Inc.
®
Rev. 4.08
DCR-WEB
Ultrasonic Web Controller
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Operational Description
e DCR-WEB is an ultrasonic
position control system designed
for the demands of web control
applications.
e DCR-WEB operates on
the principle of “time of flight”
measurement of an ultrasonic signal
generated by the transducer.
e DCR-WEB transducer can
be either an electrostatic sensor for
clean environments or a ceramic
piezo sensor for harsh industrial
environments. A variety of
transducer mounting configurations
are available (see dimensional
drawings and ordering information
for details).
e DCR-WEB controller utilizes
microprocessor intelligence to
allow filtering of the return signal
to discriminate the desired target
from unwanted false echoes and
ambient noise. e controller
specifically rejects difficult-to-filter
noises from broad spectrum sources
such as pneumatic valves and
cylinders. e controller program
is designed specifically to offer
programmable features desired by
engineers controlling web tension
and roll diameter in their industrial
processes.
■
Controller optimized for web
applications
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2 line x 8 character LCD display
and keypad for easy programming
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Programmable filtering
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Programmable drive speed and
ramp control
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Isolated 0-10 VDC output for
drive control with invert switch
(other outputs available)
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(2) Programmable 5 A dry contact
relays used to activate alarms
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Perfect for roll-diameter and loop
control applications
Options
■
Electrostatic or ceramic
transducers