ProFire PF3100 Product Manual page 81

12.5.5 SYSTEM BEHAVIOR – IO EXPANSION CARD LOCAL PROOF OF AIRFLOW INPUT
This section is for a proof of airflow input wired to an I/O Expansion card. Refer to
of Airflow section for a proof of airflow input wired to a BMS Controller card. Proof of Airflow inputs apply only to the BMS
controller card to which they are connected (either directly through the BMS Aux In contact or through an I/O Expansion card).
Each BMS requiring a Proof of Airflow input must have either (1) a proof of airflow switch wired to its Aux In contact or (2) a
proof of airflow device wired to a dedicated I/O Expansion card with a single logical Local Proof of Airflow input.
Signal HFV Output
Type Mode
setting setting
Any
Digital
Forced
Draft Fan
Purge Fan
Any
4-20
Forced
Draft Fan
Purge Fan
1 An input is in the valid range when it is above the configured Low Trip setting and below the configured High Trip setting.
12.5.6 SYSTEM BEHAVIOR – FARC POSITION FEEDBACK INPUT
Input Signal
Out of Range
Within position error of
expected position
Outside position error
of expected position
Any
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Controller State Input State
Energized
Startup Checks
De-energized
Energized
Proven Pre-
Purge
De-energized
Energized
Any fuel state
De-energized
Any fuel state Any
Any Out of Range
Any High Trip
Valid range
Startup Checks
Low Trip
Valid range
Proven Pre-
Purge
Low Trip
Valid range
Any fuel state
Low Trip
Valid range
Any fuel state
Low Trip
Scenario
Cross Limit Error
Any
Below Cross Limit Error
setting
Above Cross Limit Error
setting
State
Transition
Lockout
Pre-Purge
No effect
Lockout
No effect
Lockout
No effect
Alarm/
Lockout
1 Lockout
Pre-Purge
1 No effect
Lockout
1 No effect
Lockout
No effect
1
No effect
State
Transition
Controller State
Any running Lockout
Any stopped Alarm
Any No effect
Any running Lockout
Any stopped Alarm
Any running Lockout
Any stopped Alarm
PF3100 Product Manual
System Behavior – BMS Card Aux In Proof
Controller Alerts
Airflow Input Stuck
N/A
N/A
Failed to Prove Airflow While Purging
N/A
Failed to Prove Airflow While Running
N/A
I/O Expansion POAF Input Invalid
alarm
Airflow Input Stuck
N/A
N/A
Failed to Prove Airflow While Purging
N/A
Failed to Prove Airflow While Running
N/A
N/A
Controller Alerts
IO Expansion Invalid alarm
N/A
FARC Fuel Channel Position
FARC Cross Limit Error alarm
DOC-001149 v8.0
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