2-57 Chapter 2 System Configuration
Connection procedure with Gyro Compass
1. Turn S1 off
Gyro Compass and Gyro Interface Circuit will be disconnected.
2. Switch TB1 for the type of your Gyro Compass
Synchro type Gyro Compass: Set TB1 to “SYNC”
Step type Gyro Compass: Set TB1 to “STEP”
3. Set S3 as follows for your Gyro Compass and Speed Log according to Table. 2.5.7 GIF S3
settings.
S2-1 : Gyro type (STEP / SYNC)
S2-2/3 : Gyro speed ratio
S2-4 : The direction of rotation
S2-5 : Gyro alarm time (LONG / SHORT)
S2-6 : Log alarm (ON / OFF)
S2-7/8 : Log settings
4. Set TB401-403 and TB19 as follows if your Gyro Compass signals are less than 22V.
1-2 SHORT CIRCUIT: Factory default.
2-3 SHORT CIRCUIT: Set this if voltages of step Gyro signals are less than 22V.
5. Connect your Gyro Compass and Speed Log to J823 of CMJ-554 Gyro Interface Circuit as
follows.
Table. 2.5.8 GIF input section
Gyro and Log J823 Description
Synchro Gyro R1, S1, S2, S3 and R2.
24 - 115Vac
(50 / 60 / 400Hz)
Step Gyro
1, 2, 3 and 5
( 5 for common )
21.6 - 70V
Pulse Log P+, P-
0-50V, Vth = 2V.
(5V, 1k ohm Internal Pull-up)
6. Turn S1 on
Your Gyro compass will be connected to the Gyro interface circuit.
7. Check your Radar Echo and True Bearing Value to make sure that your Gyro Compass is
working correctly.
8. Set S3-4 to “REVERSE” if your Radar Echo and True Bearing have Reverse rotation.
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