4-20Ma Input Level / Pressure (1 / 2) Menu Options; Aux1 & Aux2 Relay Settings Menu Options - ACL CSC400 Installation And Operation Manual

4-20mA Input Level / Pressure (1 / 2) Menu Options

The 4-20mA Inputs on the CSC400 allow the user to configure a variety of options to support a wide variety of applications
and equipment. Normal 4-20mA or 1-5V ranges can be selected, or custom ranges and units can be entered by the user for
displaying on the four-line display. The 4-20mA inputs can also be configured to alarm and/or shutdown the ignitors once the
desired trip-point has been reached (above a High Trip-point and/or below a Low Trip-point). The High Trippoint must be
above the Low Trippoint value. Similarly, the Low Trippoint value must be below the High Trippoint value.
# Menu Selections
1 Format: 4-20mA
2 SetPt Ctrl: None
3 Lo Alarm Enabled
4 Hi Alarm Enabled
5 SD on Lo Alarm Yes
6 SD on Hi Alarm No
7 SD Latched
8 Units mA
9 Low ( 4) 4 mA
10 High (20) 20mA
11 Lo TrpPt: 12.00mA
12 Hi TrpPt: 18.00mA
13 Setpoint 4.00mA
14 Deadband 0.00mA
15 1V-5V 1/2 Calib
As an example for 4-20mA Input setpoint control, if both inputs are set to control Ignitor 1, if either input is below its
corresponding setpoint, it will turn on the TMain 1 solenoid output (an OR operation). Both inputs would have to be above
their setpoints for Ignitor 1 TMain solenoid output to turn off.
AUX1 & AUX2 Relay Settings Menu Options
The AUX1 and AUX2 Relays can be configured in the menu system to switch based on a variety of options. Either relay can
be selected to switch upon reaching the setpoint temperature of any of the three thermocouple inputs, a custom thermocouple
setpoint temperature can be used, the relay can be selected to switch upon one of the Ignitors going into Flame Fail (Alarm), or
the relay may be selected to only turn on upon Modbus control.
As an example, for incinerator systems, an option to turn on external fans once the TC1 temperature reaches 960°C may be
desired, but the setpoint temperature for TC1 is set to 980°C. In this case, the user would use one set of AUX Relay terminals
to control the 12VDC fan relay coil: set the "Ctrl:" option to "TC1 Custom", and then set the "Cust Temp:" field to 960°C.
# Menu Selections
1 Control:
("Ctrl:")
Type Description
Option Format of the 4-20mA input:
4-20mA or 1V-5V
Option Secondary 4-20 Input setpoint control
for selected TMain.
Option Alarm if 4-20mA Input is Below Trip-
point: Enable/Disable
Option Alarm if 4-20mA Input is Above Trip-
point: Enable/Disable
Option Shutdown upon Low Alarm? Yes/No
Option Shutdown upon High Alarm? Yes/No
Option Shutdown Latch select
Option Units for 4-20mA input
Option Range Low value (4mA level)
Option Range High value (20mA level)
Option Low Trip-point value (Alarm and/or
SD Below this value)
Option High Trip-point value (Alarm and/or
SD Above this value)
Option Setpoint for Secondary TMain control
(TC1 & 2 still have priority)
Option Deadband value for 4-20mA Inputs:
Option 1V-5V 1 & 2 Calibration (internal)
Type Description
Option Control source variable for the
AUX 1/2 Relay
Possible Options/Values
4-20mA input,
1-5V input
None, IGN1, IGN2, or IGN1&2. Either
4-20mA Input may control a TMain
solenoid. An OR operation is
performed.
Enable/Disable
Enable/Disable
Yes, No
Yes, No
Latched/Unlatched
4-20mA, 1-5V, gallons, m3, psi, kPa, %
4.00 - 20.00, 0 - 32000, -60 - 1200
(depending on selected units)
4.00 - 20.00, 0 - 32000, -60 - 1200
(depending on selected units)
4.00 - 20.00, 0 - 32000, -60 - 1200
(depending on selected units)
4.00 - 20.00, 0 - 32000, -60 - 1200
(depending on selected units)
4.00 - 20.00, 0 - 32000, -60 - 1200
(depending on selected units)
0 - 50 (eg: 0.00mA to 0.50mA, or 0.0 -
5.0%, or 0.0 to 5.0 degrees, etc.)
Start an internal 1V-5V calibration
Possible Options/Values
TC1 Ignitor 1 SetPoint,
TC1 Ignitor 2 SetPoint,
TC2 Setpoint,
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