ProFire PF3100 Product Manual page 154

16.10.3 OUTPUTS
16.10.3.1 4-20 AUX OUT
Setting Default
4-20 Aux Out
Disabled
Mode
Manual Override Disabled
Manual Control
0 %
Output
Purge Position 100 %
Pilot Position 25 %
Minimum Firing
40 %
Rate
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Options Description
Disabled The Aux output is disabled
The Aux output delivers a 4-20mA signal in accordance with the
Manual
configured Manual Control Output setting below.
The Aux output delivers a percentage value of the process
temperature in relation to the
20mA signal.
Example:
Temp Echo High Temp SP setting = 100 °
Process temperature reading = 50 °
Aux output in % = (50°/100°) x 100 = 50%
Aux output in mA = 12mA
The Aux output delivers a 4-20mA signal identical to the 4-20mA
Pressure Echo
Pressure input signal.
The Aux output delivers a 4-20mA signal identical to the 4-20mA
Level Echo
Level/Flow input signal.
The Aux output delivers a 4-20mA signal in accordance with configured
PID Control
Position settings and the internal PID control algorithm
The Aux output delivers a 4-20mA signal in accordance with configured
Appliance Firing Rate
Position setting and a 4-20mA I/O Expansion card firing rate input.
The Aux output delivers a 4-20mA signal in accordance with the
Enabled
configured Manual Control Output setting below.
Disabled The Manual Control Output setting below is ignored.
Specifies the Aux output signal when 4-20 Aux Out Mode setting is set
0 % - 100 %
to Manual or when the Manual Override setting is set to Enabled.
Specifies the Aux output signal when requesting purge position.
0 % - 100 %
Applicable when 4-20 Aux Out Mode setting is set to BMS PID.
Specifies the Aux output signal when requesting pilot position.
0 % - 100 % Applicable when
4-20 Aux Out Mode setting is set to BMS PID.
Specifies the minimum allowable Aux output signal when in a main
0 % - 70 %
state. Applicable when 4-20 Aux Out Mode setting is set to BMS PID.
PF3100 Product Manual
High Temp Setpoint, mapped as a 4-
DOC-001149 v8.0
154