3534
MENU MAP ON SCREEN BRIEF DESCRIPTION RANGE DEFAULT SETTING
4-20 Output Mode 4-20 Out Mode Configures 4-20 Output mode Valve Control 1
Valve Control 2,
Temp Output
Disabled
4-20 Low Fire Setting 4-20 Out Lo Fire
Setting
Sets the minimum output for the
4-20mA Output when used for Valve
Control.
0 to 70% 40%
EXPANSION CARDS (MENU 6)
This menu contains settings relating to expansion cards.
MENU MAP ON SCREEN BRIEF DESCRIPTION RANGE DEFAULT SETTING
4-20 Input Card Enable 4-20 Input Card
Enabled
Enable the 4-20mA Expansion Card and
setpoints
No/Yes No
4-20 Level Units 4-20 LVL
Units
Adjusts the display units for the 4-20mA
Level Input
%, m3, BBL,
GAL,L
Hidden, m3
4-20 Level Range 4-20 LVL Range Adjusts Max Level of the tank High Setpoint-
1000
Hidden, 0 -120m3
4-20 Level Zero Offset 4-20 LVL Zero
Offset
Adjusts the level reading corresponding
to a 4mA input
0 to Low
Setpoint
Hidden, 0m3
4-20 Level Low Setpoint 4-20 LVL Low
Setpnt
Adjusts 4-20 Low Level trip point 0 Offset - High
Setpoint
Hidden, 60m3
4-20 Level High Setpoint 4-20 LVL High
Setpnt
Adjusts 4-20 High Level trip point Low Setpoint-
Level Range
Max, Disabled
Hidden, 117m3
4-20 Pressure Units 4-20 PRS
Units
Adjusts the display units for the 4-20mA
Pressure Input
PSI, kPa,
inWC, oz, ksc
Hidden, 0 -
30.0PSI
4-20 Pressure Range 4-20 PRS Range Adjusts Max pressure of the fuel train High Setpoint -
999.9
Hidden, 30.0 PSI
4-20 Pressure Low Setpoint 4-20 PRS Low
Setpnt
Adjusts 4-20 Low Pressure trip point 0-High
Setpoint
Hidden, 3.0 PSI
4-20 Pressure High Setpoint 4-20 PRS High
Setpnt
Adjusts 4-20 High Pressure trip point Low setpoint
– Max
Pressure.
Disabled
Hidden, 25.0 PSI
MODBUS Enable/Address Modbus Card Enable control and address for the
Modbus Expansion Card
Disabled,
1-254
Disabled
4-20 Card FW Version 4-20 FW Display Expansion Card FW Version N/A N/A
MODBUS Card FW Version MBUS FW Display Expansion Card FW Version N/A N/A
REVIEW MENU
This read only menu allows various commonly needed system settings and status parameters to be
reviewed while the system is running.
MENU MAP ON SCREEN BRIEF DESCRIPTION
ESD Setpoint ESD Setpnt Temp at which system will shutdown
Process Setpoint ProcSetpnt Temp at which High Fire / Main Valve will turn off
Low Fire Setpoint LF Setpnt Temp at which Low Fire Valve will turn off if Low Fire is enabled
Pilot Off Setpoint Pilot off Temp at which Pilot Valve will turn off if Pilot is enabled
4-20 High Level Setpoint HLV Level at which 4-20mA Output contacts will toggle
MENU MAP ON SCREEN BRIEF DESCRIPTION
4-20 Low Level Setpoint LLV Level below which the system will shutdown or wait if Level Event Restart is
enabled
4-20 High Pressure Setpoint HPR Pressure above which the system will shutdown after Main
4-20 Low Pressure Setpoint LPR Pressure below which the system will shutdown or wait if Auto Restart is
enabled
Flame Flame Current Flame Quality
Aux Temp AUX Temp Current Aux Temp reading
4-20 Level Reading LVL Current 4-20mA Level input reading
4-20 Pressure Reading PRS Current 4-20mA Pressure input reading
TC Debug Screen DH=ww TH=xx
TP=yy TA=zz
Shows the current readings of all temperature sensors simultaneously always
in degrees celsius regardless of the display unit setting
DH=Door Card High Temp, Thermocouple
TH=Termincal Card, High Temp Thermocouple
TP=Terminal Card Process Thermocouple
TA=Terminal Card Ambient Thermocouple
Alarms Alarms Lists up to 3 simultaneous alarm codes if any are present
3.4 | Initial System Settings
The following settings need to be modified for every installation.
1. Valve Modulation Settings (Pilot and Main)
2. System Voltage
3. Process Control Settings
4. Process Setpoints (High Temp ESD, Pilot Off, Process, Low
Fire, Low Alarm, Deadband)
VALVE MODULATION SETTINGS
The Pilot and Main Valve outputs can be modulated with a pulsed DC signal to conserve power using
Pulse Width Modulation (PWM). The duty cycle of the modulation can be adjusted independently for
each valve. Each can be set to 100%, 80%, 60%, 40%, or 20%. The 100% setting applies continuous
DC voltage (ie, no modulation) to the valve and is the highest power option. The 20% setting applies DC
voltage 20% of the time and is the lowest power option. Only valves that are compatible with modulation
should be used with a duty cycle of less than 100%. These valves are sometimes called “Low Power” or
“Peak-and-Hold” valves since they require only short periodic voltage pulses to hold the valve open. Do
not use a duty cycle of 100% with low power valves as this can damage them.
If a multimeter is used to measure the valve power, the measured voltage will be reduced proportionally
with the PWM setting.
The pilot and main valve power settings can be adjusted to match the needs of various applications.
Pilot Valve Power Setting (Menu 4)
Adjusts the PWM Duty Cycle of the Pilot Valve output.
Main Valve Power Setting (Menu 4)
Adjusts the PWM Duty Cycle of both the Low Fire and High Fire Valve outputs.
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