External System Selection - Simrad AP70 Installation Manual

External system selection

Connects to: SD80 board (in SD80, AC80S or AC85 Computer ) or AD80 board (in AD80,
AC80A or AC85 Computer).
The system select (Sys sel) input signal can be used to alternate between the vessel's own
manual steering system and the autopilot system from an external system selector. Refer to
IMO resolution MSC 64, sec. 4.
A closing contact between the SYSSEL and RET terminals will disengage the autopilot from
the vessel's steering system. The disengaged status will shown on the autopilot display.
When the contact is re-opened, the autopilot will go to
heading as set heading.
¼ Note:
The autopilot will always return to
EXTERNAL
SYSTEM SELECTOR
AUTOPILOT
RET
SYSSEL
MANUAL
External mode selection - pulse
Connects to: SD80 board (in SD80 or AC85 Computer ) or AD80 board (in AD80A or AC85
Computer).
External mode selection can be arranged with push buttons as shown in the figure below.
The two push buttons will have similar function as the
AP80 control units.
PART OF
EXTERNAL
MODE SELECTOR
STBY AUTO
AUTO
STBY
RET
Wiring | AP70/AP80 Installation Manual
AUTO
mode with current compass
AUTO
mode, even if it was in
AD80/SD80 BOARD
MODE
TRACK
AUTO
STBY
SYSSEL
RET
STBY AUTO
and
AD80/SD80 BOARD
MODE
TRACK
AUTO
STBY
SYSSEL
RET
NoDrift NAV
or mode.
AD80/SD80,
AC80S or AC85
Computer
keys on the AP70 and
AD80/SD80,
AC80S or AC85
Computer
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