ACL CSC400 User Manual

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
Description
Allowable Input Range
28
Auxiliary Shutdown 1
None: use dry contacts
29
Auxiliary Shutdown 1
None: use dry contacts
30
Auxiliary Shutdown 2
None: use dry contacts
31
Auxiliary Shutdown 2
None: use dry contacts
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
Description
Max Contact Rating
32
Alarm Status "NC"
Load current: 120mA
rms
/ mA
DC
Voltage: 30VDC, 30V
P
(AC)
33
Alarm Status "COM"
Load current: 120mA
rms
/ mA
DC
Voltage: 30VDC, 30V
P
(AC)
34
Alarm Status "NO"
Load current: 120mA
rms
/ mA
DC
Voltage: 30VDC, 30V
P
(AC)
#
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)

ACL CSC400 Specifications

General

Brand	ACL
Model	CSC400
Category	Controller
Language	English