Watlow PPC-2000 - Manual (Page 213)

PPC-2000 User’s Guide Chapter 5: LogicPro and Modbus Reference
Doc.# 30002-00 Rev 2.3 Watlow Anafaze 185
Figure 5.2 Output Scaling Curves
Auto Heat/Cool Limit
This parameter limits the control output for a channel’s heat
and cool outputs. This limit may be continuous, or it may be in
effect for a specified number of seconds (see Heat/Cool Limit Time
below). If you choose a timed limit, the output limit restarts
when the controller powers up and when the channel changes
from Manual to Automatic control. The output limit only affects
channels under automatic control. It does not affect channels
under manual control. The valid range is 0 to 1000 and
corresponds to 0.0% to 100.0%: for example, a setting of 500
corresponds to 50.0%.
Heat/Cool Limit Time
Set a time limit for the Auto Heat/Cool Limit. If set to 0, the limit
is in effect whenever the channel is in automatic control. The
Heat/Cool Limit Time is set in seconds.
Sensor Fail Heat/Cool%
When a failed sensor alarm occurs on a channel under
automatic control, that channel goes to Manual control at this
percent power output. The valid range is 0 to 1000 and
corresponds to 0.0% to 100.0%: for example, a setting of 500
corresponds to 50.0%.
Actual
Output
Applied
(%)
Calculated Closed-Loop Control Action (%)
A
B