ACL CSC400 User Manual

48
CSC400 Controller Shutdown Display Codes
The following table provides a summary of all the possible Shutdown Display codes that the user may see on the CSC400
Controller's 4-line LED display.
LED Display Indicator
Name
Description and/or Corrective Action if Necessary
Common Operational /
Shutdown Messages
(Shutdown line only)
PWR Fail
Power Fail / Power
Fail Latch
Indicates there was a power failure on the main input power to the
controller. Seen if the Power Fail Latch menu setting is set to
Latched and a power failure occurs. Pressing the Stop then Start
buttons, or a toggling of the Modbus Remote Stop/Start power rung is
required to reset this condition.
FF
Flame Fail
Indicates that the pilot has gone out and/or failed to re-light. "FF" will
flash on the bottom right part of the display beside the respective
ignitor ("1:" or "2:") indicating Flame Fail status.
Press the Stop then Start buttons, toggle the Remote Start/Stop switch,
or send Modbus Remote Stop then Start commands to retry the
ignition sequence.
OFF
Power is Off
Indicates that the system is in the Off state (Stop button was pressed,
Modbus Remote Stop command received).
TC1 OPEN
TC1 is Open
TC1 thermocouple is currently open. Check TC1 thermocouple and
terminal connections.
TC2 OPEN
TC2 is Open
TC2 thermocouple is currently open. Check TC2 thermocouple and
terminal connections.
TC3 OPEN
TC3 is Open
TC3 thermocouple is currently open. Check TC3 thermocouple and
terminal connections.
POC
Proof of Closure
Indicates that the "POC" input is open, preventing power from going
to the ignition module and allowing the system to start.
RemStop
Remote Stop
Indicates that the "Remote Start/Stop" input terminals are in the Off
or Stop (open) position. Jumper with a wire jumper when not used.
High Gas
High Gas
Shutdown
Indicates that the "High Gas Shutdown" switch inputs (or terminals)
are open (in shutdown). Jumper with a wire jumper when not used.
Low Gas
Low Gas
Shutdown
Indicates that the "Low Gas Shutdown" switch inputs (or terminals)
are open (in shutdown). Jumper with a wire jumper when not used.
Level
Level Shutdown
Indicates that the "Level Shutdown" switch inputs (or terminals) are
open (in shutdown). Jumper with a wire jumper when not used.
Aux 1
Auxiliary 1
Shutdown
Indicates that the " Auxiliary 1 Shutdown" switch inputs (or
terminals) are open (in shutdown). Jumper with a wire jumper when
not used.
Aux 2
Auxiliary 2
Shutdown
Indicates that the " Auxiliary 2 Shutdown" switch inputs (or
terminals) are open (in shutdown). Jumper with a wire jumper when
not used.
Hi Temp
High Temperature
Shutdown
Indicates that the measured temperature on TC2 is at or above the
TC2 setpoint, thereby shutting off all solenoid valve outputs (Pilot,
Main, T/Main) for both Ignitor output blocks.
May also indicate that the system is in High Temp Latch mode if the
"HT Latch" menu option is Enabled. Pressing the Stop then Start
buttons, or issuing Modbus Remote Stop then Start commands is
required to reset this condition.
HT TC3
High Temperature
Auxiliary
Shutdown - TC3
Indicates that the measured temperature on TC3 is at or above the
TC3 setpoint, thereby shutting off all solenoid valve outputs (Pilot,
Main, T/Main) for both Ignitor output blocks.
This will only be seen if the menu option " TC3 AUX HT SD" is set
to "Yes" and if TC3 is enabled.

ACL CSC400 Specifications

General

Brand	ACL
Model	CSC400
Category	Controller
Language	English