Penn System 450 Series Installation Instructions

System 450™ Series Control Modules with Analog Outputs Installation Instructions
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Figure 5 shows an example of the analog output setup values and the resulting output signal in a typical space
heating application (SP > EP and OSP < OEP).
The control action between the input signal and the output signal can be set up four ways, depending on the values
selected for the Setpoint (SP), End Point (EP), Percent Output Signal Strength at Setpoint (OSP), and Percent
Output Signal Strength at End Point (OEP). The LCD displays different Control Ramp icons for the four control
actions.
Table 9 shows the four Control Ramp icons and the associated analog output setup value relationships.
System Output
0%
100%
Condition Value
Less Greater
65°F
10%
70°F
SP > EP
SP = 70 ( )
EP = 65 ( )
OSP = 10 (%)
OEP = 100 (%)
°F
°F
OSP < OEP
OSP
OEP
SP
EP
Proportional
Band
Fig:sys450_cntrl_rmp_exmpl
Figure 5: Control Ramp Example for a Typical
Heating Application (SP > EP and OSP < OEP)

Penn System 450 Series Specifications

General

Brand	Penn
Model	System 450 Series
Category	Control Unit
Language	English