Watlow PPC-2000 - Manual (Page 126)

Chapter 3: Operating with AnaWin 3 PPC-2000 User’s Guide
102 Watlow Anafaze Doc.# 30002-00 Rev 2.3
Linear 0-1Vdc Input Example
For a sensor that measures light intensity between 0 and 500
Lumens and outputs a 0-1Vdc signal, set the following
parameters:
Table 3.7 Scaling Parameters for 0-1Vdc
Linear Input Example
Process Variable Retransmit
This feature allows you to output signals representing the
process variables of source channels or other analog inputs on
the heat and cool outputs of a retransmit channel. The analog
input selected as the PV Source of the retransmit channel is
output on the heat output. The analog input selected as the Set
Point Source of the retransmit channel is output on the cool
output.
The output signals are scaled using the Min Set Point and Max
Set Point and Heat/Cool Scale Hi and Heat/Cool Scale Lo
parameters. Figure 3.4 illustrates how the output signals are
related to the analog inputs by these scaling parameters.
Figure 3.4 Linear Scaling of the Analog Input
for Retransmit on the Heat or Cool
Output
Parameter Setting Units
Input Type Linear -0.1 to 1 (v)
Units Lumens
Input Signal Lo 0.0 mV
Input Signal Hi 1000.0 mV
PV Lo 0 Lumens
PV Hi 500.0 Lumens
Decimal Places 1
Heat/Cool Scale Lo
Heat/Cool Scale Hi
Min Set Point
Analog Input Range (Engineering Units)
Low
Max Set Point Sensor Range
High
Sensor Range
Heat/Cool Output (% of Full Scale)