Marathon Computer UNIPRO V3.5 - Manual (Page 9)

Marathon Monitors Inc
.
Unipro 3.5 Process Control 1 Aug. 1997
more details). The output control is based on 0 to 99% of the
output device's control range. For example, 50% control would
equal 2.5 VDC out where 5 VDC equals maximum heat output of
the drive. This can be used with servo drives that require a voltage
or current command signal for controlling heat output or servo
positioning.
3. POSITIONING MOTOR with SLIDEWIRE FEEDBACK:
Set Control Modes for Single Position-Proportioning with slidewire
feedback. CONTROL OUTPUT #1 will drive the motor in the
open direction, CONTROL OUTPUT #2 in the close direction.
Remember, the above methods are just examples of the typical
applications of the UNIPRO. Please call your MMI representative
or application engineer for questions concerning your particular
system.
Chart Recorders
If a chart recorder is to be used, it must have input specifications
within the following ranges:
0 to 4 VDC
0 to 45 mA
corresponding to a FRONT PANEL display of 0-2000. The ideal
location of the recorder is adjacent to the instrument but it may be
located remotely if the connecting wires are properly shielded.
Long wiring runs from the chart recorder outputs may require
resistive termination
(2 K ohms or so) at the chart recorder input(s) should be isolated
from ground.
Computer Interface
If you wish to take advantage of the UNIPRO's RS-422 digital
communications capabilities, refer to "Communications" for more
details.