Johnson Controls Penn System 450 Series Technical Bulletin page 22

Table 4 shows the four control ramp icons and describes their corresponding
control actions and the setup value relationships required to configure the four
control actions. See Figure 23 and Figure 24 on page 52 for examples.
Table 4: System 450 Control Ramps, Analog Output Control Actions, and
System Setup Value Relationships
Control Ramp Control Action
Displayed
OEP=100%
Output Minimum at SP
OEP=100%
Output Minimum at SP
OSP=100%
Output Maximum at SP
OSP=100%
Output Maximum at SP
22 System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin
OSP=0%
SP=50°F EP=60°F
OSP=0%
EP=50°F SP=60°F
OEP=0%
EP=50°F SP=60°F
OEP=0%
SP=50°F EP=60°F
Set the Analog Output Value Relationships
for the Desired Control Action and
Corresponding Control Ramp
SP < EP
OSP < OEP
SP > EP
OSP < OEP
SP > EP
OSP > OEP
SP < EP
OSP > OEP