6
Operation Summary
Supply 12/24VDC to Main Input Power connections on the CSC400 Controller, referring to "Figure 1 – CSC400 Controller
Main Board, Top View" on page 7. The 4-line LED display will turn on and show the desired process temperatures, 4-20mA
input levels/pressures, ignitor and solenoid status, and any shutdowns active. The CSC400's menu system is accessed and
controlled via four membrane push buttons on the front panel: Menu, Select, Up, and Down. Once temperature setpoints are
set to the proper values for the desired process (heater, boiler, etc.), and additional options are configured, the Start button can
be pressed to start the CSC400 system.
When the Start button is pushed and the controller is calling for heat (measured temperatures are below the setpoint
temperatures), the controller will attempt ignition and the pilot solenoid output will provide voltage to the pilot solenoid valve,
providing pilot gas for ignition. Shutdowns, POC, and Remote Start/Stop terminals must be in a permissive state for this to
occur. Pilot solenoid output will cease if there is a failure to light within five seconds. "FF" will appear and blink on the
display indicating "Flame Fail". The CSC400 controller will attempt to light the pilot two more additional tries before locking
out, even when using a single try ignition module. If the Flame Fail status persists after three tries, this condition can be reset
either by the local Stop/Start buttons, the Remote Start/Stop switch terminals, or via Modbus Remote Stop/Start command.
Main solenoid valve outputs will be turned on 10 seconds minimum after it is confirmed that the pilot has been lit (adjustable
up to 120s). The Intermittent/Continuous Pilot Menu setting selects the behavior of the controller once all solenoids are
opened.
In Pilotless/Intermittent pilot mode (I), once the measured temperature on thermocouple 1 reaches the TC1 setpoint
temperature (but TC2 temp is still below the TC2 setpoint), all solenoid valves will be turned off.
In Continuous pilot mode (C), once the measured temperature on thermocouple 1 reaches the TC1 setpoint temperature (but
TC2 temperature is still below the TC2 setpoint), only the T/Main solenoid valve is turned off. The Pilot and Main solenoid
outputs will remain on as long as all shutdowns and POC remain permissive.
When Flame Ionization mode is selected, thermocouple 2 is used as a "high-temp" shutdown safety control for both
Intermittent and Continuous modes. All solenoid outputs and the ignition module will be turned off if the measured
temperature on thermocouple 2 is above the TC2 setpoint. An option to use thermocouple 3 as an auxiliary high-temp
shutdown is available as well.
The CSC400 has a hardware revision of 1D and firmware version 00.02.09 (minimum). The menus in this version of the
manual show firmware version 00.02.56.
THIS EQUIPMENT IS SUITABLE FOR USE IN CLASS1 DIVISION 2, GROUPS
A,B,C & D OR NON-HAZARDOUS LOCATIONS ONLY
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY
IMPAIR THE SUITABILITY FOR CLASS 1 DIVISION 2
WARNING: EXPOSURE TO SOME CHEMICALS MAY DEGRADE THE SEALING
PROPERTIES OF MATERIALS USED IN THE FOLLOWING DEVICES:
Twelve-position DIP switch S1
Four-position, half-pitch DIP switch SW8
Eight-position DIP switch SW2
To Next Page
Loading...
Need help?
General