ProFire PF3100 Product Manual page 79

12.5.3 SYSTEM BEHAVIOR – IO EXPANSION CARD DIGITAL INPUT
Input Mode Controller State
Any except
Proof of
Any
Airflow
Any stopped state
Alarm
Any running state
Any stopped state
Wait
Any running state
Warning Any
Any non-main state
Main
Permissive
Any main fuel state
Display Only Any
Local Proof of
Refer to
Airflow
1 When Pilot Off mode is set to Off After Main On, the controller transitions to the Waiting state, then purges the system before
reigniting and proceeding to Pilot.
The following is for applications that have multiple input devices monitoring a single controller input
(i.e., input redundancy), that is, a single created input (I/O Expansion Wizard > Add Inputs Tab) is
assigned to more than one card input slot (I/O Expansion Wizard > I/O Modules Tab):
!
Warning - I/O Expansion input redundancy is supported for hardware redundancy only (i.e., the system
continues to run if a redundant input loses communication with the BMS controller, but the redundant
input state is determined by a single input only). The input state of the redundant input is determined
by the first input to establish communication with the BMS controller only.
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Scenario
Input state
(see warning
below for
applications using
redundant inputs)
Energized
De-energized
De-energized
De-energized
De-energized
De-energized
De-energized
De-energized
e-energized
D
Proof of Airflow Behavior table
State
Controller Alerts
Transition
No effect N/A
Alarm IO Expansion Digital Input Open alarm
Lockout IO Expansion Digital Input Open alarm
No effect IO Expansion Digital Input Open wait
Waiting IO Expansion Digital Input Open wait
No effect IO Expansion Digital Input Open warning
No effect IO Expansion Digital Input Open main permissive
Pilot 1 IO Expansion Digital Input Open main permissive
No effect N/A
below for system behavior
PF3100 Product Manual
DOC-001149 v8.0
79