Tokyo Keiki TG-8000 Series, Operator'S Manual, Page: 59 / 105

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(5) Countermeasures when LOG (contact) abnormality is generated
CAUTION
●
When an alert related to LOG (contact) (alert code "u") is generated and the true
heading of the gyrocompass has not been determined, once turn the steering mode to
"MANUAL" or "Non Follow Up", then determine the true heading because erroneous
heading information (repeater signal and serial signal) is possible to be outputted to the
outside.
Refer to "3.4.4 (5) Countermeasures when LOG (contact) abnormality is generated" in
Chapter 3 Operating Method, for determination method of the true heading.
When abnormality related to LOG (contact) is generated, the data indicator
⑧
is
blinking.
The gyrocompass true heading and the heading information outputted to the external
which are currently indicated, is the corrected value based on the ship's speed
immediately before the alert was generated.
1. Select the other than "LOG" for the ship's speed input system.
(Refer to "3.4.1 (7) Setting of the ship's speed input system.)
2. As the gyrocompass true heading calculated from the corrected ship's speed is
blinking, determine the true heading by pushing ACK / ENT switch
④
.
3. The true heading indication goes lit and the true heading outputted to the external
is also determined.
3.5 Stop
(1) Turn "OFF" the switches of each repeater.
(2) Turn "OFF" the power switch.