ProFire PF2200-SB Product Manual page 23

2.1.2.18 AUXILIARY OUTPUTS
The Auxiliary Outputs 1 and 2 (terminals 37-38 and 39-40 respectively) are a 4-20mA output signal
which be set to various modes of operation. The following is a list of modes along with detailed
description of behavior:
Mode Behavior
Disabled N/A
The output will follow a selected temperature input of the system. The output
Temperature range will be between 4-20mA spanned between user configurable Min and Max
temperature values . If the temperature is not valid (loss of temperature input or a
Echo
temperature fault) the output will send out a 0mA signal.
Level Echo The output will follow the level input measurement of the system. The output
range will be between 4-20 mA spanned from the user configurable level span Min
to the level span Max value . If the level input is not valid or it is not enabled (loss of
input signal or an input fault) the output will send out a 0mA signal.
Aux 1 Input The output will follow the Aux 1 Input. The output range will be between 4-20 mA
spanned from the user configurable Aux 1 span Min to the Aux 1 span Max value .
Echo
If the aux input is not valid or it is not enabled (loss of input signal or an input fault)
the output will send out a 0mA signal.
Aux 2 Input The output will follow the Aux 2 Input. The output range will be between 4-20 mA
spanned from the user configurable Aux 2 span Min to the Aux 2 span Max value . If
Echo
the aux input is not valid or it is not enabled (loss of input signal or an input fault)
the output will send out a 0mA signal.
Modbus Echo The output will follow the modbus register "Aux Out x" value from 0 to 100%.
If the modbus is not configured the output will send out a 0 mA signal.
2.1.2.19 Status Relay Output
The Status Relay Output (terminals 25-27) is a normally open contact designed as an isolated output
that has a configurable mode of operation. The modes of operation are outlined below:
Configuration Behavior
-
Run Status
-
-
Heating Status
-
-
Low temp
Warning Status
-
-
Level Control
-
De-energized when in Power On, Lockout, Ready, or Alarm states
Energized when in Waiting, Ignition, Pilot, Main Light Off or Process Control
De-energized when in Power On, Lockout, Ready, Alarm, or Waiting states
Energized when in Ignition, Pilot, Main Light Off or Process Control
De-energized when in Power On, Lockout, Ready, Alarm states OR Process
temperature is below low temp warning setpoint
Energized when in Ignition, Pilot, Main Light Off, Process Control states AND
Process temperature is above low temp warning setpoint
De-energized when tank level is above high level setpoint
Energized when tank level is below high level setpoint minus dead band
Section 2: PF2200-SB PRODUCT DESCRIPTION
V 4.0
Page 23 of 85