Troubleshooting
P/N 06-237058-001 7-9 February 2012
L#: Addr
DEVICE COMMUNICATION
FAULT On
A loss of communications between the
SLC's driver circuit and the device at
address L#: Addr.
• Check device connections to SLC
wiring
• Ensure that device has not been
removed
• Check SLC wiring for excessive
capacitance and/or resistance if the
device LED is blinking. Refer to
Section 2-8.5. Rewire SLC using
recommended wire in Appendix B.
• Replace the device if above
procedures are unsuccessful.
L#: Addr
DRIFT FAULT On
Device
Type
The inability of a SmartOne smoke
detector to further compensate for
reference signal variation
• Globally isolate all outputs. See the
Global Isolate menu in Figure 3-12.
• Disconnect smoke detector from SLC
and visually inspect for damage.
Clean the detector as recommended.
• Use Handheld Programmer to test the
device. Reconnect device to SLC.
• Measure the detector sensitivity. Refer
to the Device Reading menu in
Figure 3-14. Replace the detector if
the clean-air reference value is more
than one half of the alarm-threshold
value.
• Conduct an initiating device test on
the detector. Refer to the Test menu
in Figure 3-37.
• Activate and confirm a proper alarm
response from the detector.
• Replace device if any of above tests is
unsuccessful.
• Globally de-isolate all outputs. Refer
to the Global Isolate menu in
Figure 3-12.
Table 7-2. SLC Events (Continued)
SLC Events
For the following SLC-related events, L# is the SLC loop number and Addr is the
device address.
Error Message Probable Cause Corrective Action
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