ACL CSC400 Installation And Operation Manual page 15

ignition module as long as all other shutdowns and Proof of Closure inputs are closed and temperature values for both
thermocouples are within the allowable range. A wire jumper must remain across the Shutdown terminals when not in use.
The CSC400 LED display will show "Aux 1" when the Auxiliary Shutdown 1 input is open.
The CSC400 LED display will show "Aux 2" when the Auxiliary Shutdown 2 input is open.
Terminal Number
28
29
30
31
Alarm Status Output
The Alarm Status output provides remote indication of an Alarm condition on the CSC400. When power to the CSC400 is off,
the Alarm Status contacts are open between "NO" and "COM" and closed between "NC" and "COM", indicating an Alarm
condition. The contacts are also in an Alarm condition when the CSC400 is in a shutdown state. Eg: a Shutdown switch or the
Remote Start/Stop switch is open. This provides a complete fail-safe indicator to a remote control center of the status of the
CSC400 controller.
Terminal Number
32
33
34
# Possible Alarm Conditions
1 Power is off
2 Overlay unplugged
3 Remote Start/Stop switch is open
4 High Temperature shutdown (Thermocouple 2)
5 High-Temp Latch condition
6 Shutdown switch is open (High Gas, Low Gas, Level, Aux 1, Aux 2)
7 Proof of Closure valve is open
8 Shutdown Latch condition (High Temp, High Gas, Low Gas, Level, Aux 1, Aux 2,
4-20mA Input)
9 Power Fail Latch condition
10 Short detected on solenoid valve output terminals
11 4-20mA Input Lo/Hi Shutdown enabled
12 Modbus Stop command received
13 Flame Fail (Alarm signal from ACL Ignition Module)
14 Thermocouple 1 (TC1) fault/open
15 Thermocouple 2 (TC2) fault/open (if enabled)
16 Thermocouple 3 (TC3) fault/open (if enabled)
Description
Auxiliary Shutdown 1
Auxiliary Shutdown 1
Auxiliary Shutdown 2
Auxiliary Shutdown 2
Description
Alarm Status "NC"
Alarm Status "COM"
Alarm Status "NO"
Allowable Input Range
None: use dry contacts
None: use dry contacts
None: use dry contacts
None: use dry contacts
Max Contact Rating
Load current: 120mA / mA
rms
Voltage: 30VDC, 30V (AC)
P
Load current: 120mA / mA
rms
Voltage: 30VDC, 30V (AC)
P
Load current: 120mA / mA
rms
Voltage: 30VDC, 30V (AC)
P
DC
DC
DC
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