2018KCL(ip) SERIES SIGNAL MONITOR
OPERATIONS MANUAL
Eberle Design Inc.
Page 11
Signal Monitor will remain in the fault mode until the unit is reset by the RESET button or
the EXTERNAL RESET input.
2.19.1.1.3 RED FAIL
A Red Fail fault will occur if the solid Red Arrow AND solid Yellow Arrow AND flashing
Yellow Arrow AND solid Green Arrow all remain inactive for the Red Fail fault response
time. The fault channel status will be indicated for both channels of the pair. The Red and
Yellow inputs for channels 1, 3, 5, and 7 do not affect the Red Fail condition for the FYA
channels 9, 10, 11, and 12.
2.19.1.1.4 DUAL INDICATION
A Dual Indication fault will occur if any two or more of the solid Red Arrow, solid Yellow
Arrow, flashing Yellow Arrow, or solid Green Arrow signal combinations are active
simultaneously for the Dual Indication fault response time. The fault channel status will be
indicated for the Overlap channel (9, 10, 11, 12). The fault channel status will also be
indicated for the solid Green Arrow channel (1, 3, 5, 7) IF the solid Green Arrow was active.
If the GY Dual Enable, GR Dual Enable, or YR Dual Enable is On for the solid Green Arrow
channels (1, 3, 5, 7) then a Dual Indication fault will occur if any two or more of the Red,
Yellow, or solid Green Arrow inputs (1, 3, 5, 7) are active simultaneously for the Dual
Indication fault response time.
2.19.1.1.5 CLEARANCE
A Clearance fault will be detected if the FYA channel sequences from the solid Green
Arrow (1, 3, 5, 7) to the solid Red Arrow (9, 10, 11, 12) without a minimum clearance time
on the solid Yellow Arrow (9, 10, 11, 12), when SSM switch 9, 10, 11, 12 is On. The fault
channel status will be indicated for the Overlap channel (9, 10, 11, 12).
A Clearance fault will be detected if the FYA channel sequences from the flashing Yellow
Arrow (9, 10, 11, 12) to the solid Red Arrow (9, 10, 11, 12) without a minimum clearance
time on the solid Yellow Arrow (9, 10, 11, 12), when SSM switch 9, 10, 11, 12 is On. The
fault channel status will be indicated for the Overlap channel (9, 10, 11, 12).
A Clearance fault will be detected if the protected channel sequences from the solid Green
Arrow (1, 3, 5, 7) to the solid Red Arrow (1, 3, 5, 7) without a minimum clearance time on
the solid Yellow Arrow (1, 3, 5, 7). SSM switch 1, 3, 5, 7 is On. The fault channel status will
be indicated for the solid Green Arrow channel (1, 3, 5, 7).
2.19.1.2 FYA INSTALLATION
The cabinet must be wired such that for each FYA approach, the solid Green protected
Arrow is driven by a load switch monitored on channels 1, 3, 5, and 7. The associated solid
Red Arrow, solid Yellow Arrow, and flashing Yellow Arrow (Overlap phase) must be driven
by a load switch monitored on channels 9, 10, 11, and 12 respectively. The Signal Monitor
associates channel 1 with 9, channel 3 with 10, channel 5 with 11, and channel 7 with 12
when FYA monitoring is enabled for that respective approach.
To enable channel pair for FYA operation, select that Datakey Unit Options checkbox
labeled “FYA x-y” (where “x-y” is 1-9, 3-10, 5-11, or 7-12). When the Datakey Unit Options
checkbox labeled “FYA x-y” is in the unchecked mode, both channel x and y operate in
standard fashion.