Simrad AP27, AP26 manual Grounding and RFI, Cable length Drive Unit Voltage

Simrad AP26 and AP27 Autopilots

Refer to the table below for recommended cable sizes.

	Cable length	Drive Unit Voltage
1.	Breaker panel to autopilot computer.	12 V		24 V
2.	Autopilot computer to Drive Unit motor	AWG	mm2	AWG	mm2
(Length refers to each of the two cables)
Up to 3 m (10 ft.)		12	2,5	12	2,5
Up to 6 m (20 ft.)		10	4	10	2,5
Up to 10 m (32 ft.)		8	6	10	4
Up to 16 m (52 ft.)		6	10	8	6

3.9Grounding and RFI

The autopilot system has excellent RFI protection and all units use the autopilot computer as a common ground/shield connection. The autopilot computer should therefore have a proper ground connection to the hull/bonding system.

RobNet2 cables and other signal cables (compass, feedback, NMEA) should not be run in parallel with other cables carrying RF or high current, such as VHF and SSB transmitters, battery chargers/ generators, winches and thrusters.

Remove the bottom cover to get access to the plug-in terminals. Strip about 1 cm (0.4") of the cable's insulation and pull the screen backwards to cover the insulation. Position the straps as shown and tighten well to make sure the screen has good contact.

Provide sufficient wire length so that the plug-in terminals can be easily connected/disconnected.

Pull out each terminal before connecting the wires. Remove all strands before putting on the terminal cover.

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