Raytheon NautoPilot NP 5100 Operator's Manual page 166

No Speed
----------------------------------------------
No Speed
No Steering Mode
Status
Use NFU direct
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No Steer.Status
Not in Heading Control
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Not in Heading C
4002.DOC010102
OPERATION
NautoPilot 5000 Series
Message
Wrong operator input.
No speed data available.
Attempt to start Track
Control mode but there
is no speed data.
Attempt to start Course
Control mode but there
is no speed data.
Attempt to switch from
manual steering to
Heading Control.
No Speed input.
The Autopilot does not
receive a valid steering
mode selection status.
Attempt to switch in
Course control mode.
Possible cause
154
Remedy
Check operator's input/
adjustment
(see section 2.3.6.2).
Check speed sensor(s)
or select "Manual
Speed" and adjust speed
(see section 2.3.6.2).
Check speed sensor(s)
or select "Manual
Speed"
(see section 2.3.6.2).
Check speed sensor(s)
or select "Manual
Speed"
(see section 2.3.6.2).
Check speed sensor(s)
or select manual speed
(see section 2.3.6.2).
-- Reset NautoPilot
Operator Unit by
switching off the
supply voltage or by
removing the fuse.
-- Check speed sensor.
-- Select manual speed
and adjust speed
(see section 2.3.6.2).
-- Switch immediately to
a non follow up
steering mode.
-- Check FU Amplifier,
Alarm Signal Unit and
Alarm Status
Interface if available.
The current operating
mode is not Heading
control.
Switch back to Heading
control mode and try it
again.
Edition: September 2014