AP45/Navigation receiver Wiring, Watch alarm

Robertson AP45 Autopilot	Page 5-37
Installation

The output from the navigational receiver is connected to AP45 J3 pin 9 and 10 (Ref. Fig. 5-44).

	Fig. 5-44
	AP45/Navigation receiver - Wiring
Watch alarm	AP45 is originally designed for connection to an external watch alarm of type WA9
	which is no longer available. WA9 was connected to J1 as per Fig. 5-45
	However, it is still possible to enable the built in watch alarm in AP45 by
	temporarily connect pin 2 of J1 (Watch al. sense) to pin 13 (Gnd). The watch alarm
	function can be permanently disabled again by following the procedure described
	in section “Fault warnings” page 2-16and section “TROUBLE SHOOTING”, page
	7-1

Fig. 5-45

WA9 Circuit/Wiring diagram

Note!

If pin 2 of J1 has a fixed connection to pin 13 (Gnd) it is not possible to disable the watch alarm.

Egersund - Norway