Simrad GC80 Instruction Manual download pdf (Page 26)

Simrad GC80/GC85 Compact Gyro Compass

18 20221511 / C

3.6 Pendulum function

GC80/85 software includes a pendulum function that enables the

heading to be changed by 180°.

The heading change is activated by closing a potential free

contact connected between TB1, pin 25 and 26 in GC80/85

control unit.

Note! To identify the function, S2-4 on the ICIF board has to be set to

ON. Refer DIP switch settings on ICIF board, page 91

onwards.

When the switch is activated, the following actions are

performed:

- The compass heading and repeaters start to change

towards the new 180° shifted heading

- An acoustic alarm sounds 5 times

- The dots in the indicator field in the display starts flashing.

These will remain flashing for as long as the pendulum

function is active.

Normal compass operation is resumed by opening the closed

potential free contact. The function is indicated by the same

acoustic alarm, and the flashing dots returns to fixed illuminated

dots.

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Simrad GC80 Instruction Manual Page 26