Honeywell BENDIX/KING KAP 140 Maintenance Manual page 56

ITEM
ILS Engaged
Manual Trim Fail
Auto Trim Fail
Vertical Accel Fail
Trim Clutch Engaged
Revision 2, Dec/2002
CS:15574F02
BENDIX/KING
KAP 140
DESCRIPTION
Open/ground discrete input connected to a discrete
output of either a VOR/ILS or GPS receiver. For a
VOR/ILS receiver, a 'YES' implies the input is
grounded and the receiver is in ILS mode. A 'No'
implies the input is open and the receiver is in VOR
mode. When GPS is the selected receiver, a 'YES'
implies the receiver is in Approach mode. A 'NO'
implies the receiver is not in Approach mode.
Internal discrete which reflects the status of the
manual trim switch monitor. This monitor detects
invalid manual trim switch inputs that exist for more
than 2.5 seconds. A 'YES' implies the monitor has
detected a stuck switch. 'NO' implies the switch
states are valid.
Internal discrete which reflects the status of the trim
runaway monitor. When the autopilot is engaged in
the pitch axis, this monitor detects a trim servo drive
that is in opposition to the pitch servo command.
When the autopilot is not engaged in the pitch axis,
this monitor detects trim servo drive in the absence
of a corresponding manual trim switch command. A
'YES' implies the monitor has detected an invalid trim
condition. A 'NO' implies the trim drive is valid.
Internal discrete which reflects the status of the
acceleration monitor.
excessive accelerations that exceed ± 0.4g for
greater than 0.4 seconds. In certain flavors, the pitch
servo must also be moving in a direction that would
produce the acceleration.
monitor has detected an excessive acceleration. A
'NO' implies that the monitor is not tripped.
Indicates engagement status of trim clutch solenoid
based on sensing current flow through the low side
solenoid driver in the FCC. The detection threshold
is set at 120mA with a hysteresis of 30mA. A 'YES'
implies solenoid current is greater than the detection
threshold and therefore the trim clutch is engaged.
A 'NO' implies solenoid current is less than the
detection threshold and therefore the trim clutch is
not engaged.
This monitor detects
A 'YES' implies the
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