ProFire PF2200-SB Product Manual page 14

2.1.2.8 PRESSURE INPUT
The Pressure input (terminals 5-6) is meant to monitor an external pressure (e.g. fuel pressure) and
provide the necessary feedback in the event of a high and/or low pressure event. Configurable as
disabled, digital input or 4-20mA signal through the user interface; the pressure input can be connected
to either a switch or transmitter.
In digital input mode, the input can be configured as either an alarm, wait, warning or main permissive
when the contact opens. This is intended to be connected to a low pressure switch.
In 4-20mA mode, a high pressure trip event will cause an alarm and a low pressure trip event can be
configured as an alarm, wait, warning or main permissive. The aforementioned high-pressure trip
event will only alarm the system if the high pressure event persists after the mains have opened. This
mode is intended for use with a pressure transmitter.
The following table outlines the behavior of the Pressure Input:
Input Configuration
Disabled
Digital Input
4-20mA
Event
Any
De-energized with low pressure mode set to Wait
De-energized with low pressure mode set to Alarm
De-energized with low pressure mode set to Main
Permissive
De-energized with low pressure mode set to Warning
Energized
Out of range
Low trip with low pressure mode set to Alarm
Low trip with low pressure mode set to Wait
Low trip with low pressure mode set to Main
Permissive
Low trip with low pressure mode set to Warning
Active range
High trip with mains ON
High trip with mains OFF
Section 2: PF2200-SB PRODUCT DESCRIPTION
V 4.0
System Behavior
No Effect
Wait
Alarm
Main Permissive
Warning
Run
Alarm
Alarm
Wait
Main Permissive
Warning
Run
Alarm
Run
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