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General System Events
Error Message
Printer Supervision Fault Communications problem between
Program Memory Corrupt On Program memory self-test failure.
SLC Communications Fault
On
SLC Open Circuit On
SLC Short Circuit On
Date/Time Must Be Set
Trouble On
P/N 06-236530-001
Table 5-1. General System Events (Continued)
Probable Cause
printer and the control unit or printer
port enabled but no printer is
connected
This indicates that there has been a
communication problem between the
two processors on the control unit
and the SLC is not being monitored.
Open circuit in the field wiring
connected to main circuit board TB1.
Applies to Class-A wiring only
Short circuit in the field wiring
connected to main circuit board TB1
Message appears each time the
control unit is re-initialized by
applying AC and then DC power.
• Check RS-232 cable between main
printed circuit board and printer
• Make sure printer is powered and
connected
• Verify that the RS-232 port assigned to
the printer via the menu is correct.
Refer to Paragraph 3-2.5.2.4.5
• Disable printer port if no printer is used
• Use the control unit configuration
program to download the event log and
forward an electronic copy to KIDDE
Technical Services. Refer to the
configuration program user's guide.
• Re-initialize the control unit by first
removing, and then re-applying,
primary and secondary power sources
• Functionally test the system
• Use the control unit configuration
program to download the event log and
forward an electronic copy to KIDDE
Technical Services. Refer to the
Configuration Program User's Guide.
• Re-initialize the control unit by first
removing, and then re-applying,
primary and secondary power sources
• Functionally test the system.
• Look for discontinuity in SLC wiring.
• Troubleshoot SLC wiring by breaking-up
circuit to isolate short circuit to specific
branch or leg.
• Set the date and time as instructed in
Paragraph 3-2.6.2.
5-5
Corrective Action
August 2013
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