TMQ AP4 Autopilot (AP4S10) 42 of 62 Version 4.96 9/10/2017
Solenoid Valves
Links are provided to allow jog lever operation in conjunction with AP4 S9
Autopilot. These links should be cut when connecting the AP4 for solenoid
operation where a jog lever is also fitted or an isolating switch must be
installed.
When cut (open circuit) the autopilot control only pulls the drive outputs low.
Positive voltage is supplied to the solenoid common connection. Links are
marked SOL J4 and SOL J7 on the PCB either side of the heat sink.
As preventative measure to ensure voltage spikes do not interfere with the
autopilot or other equipment, spike suppression diodes should be fitted on
solenoid valves. See example drawing page 40.
Wiring
Keep connecting cables as short as possible and of sufficient size to avoid
voltage drop along the cable length.
Ensure all connections are tight. Recheck periodically.
ALL CONSTANT RUNNING PUMPS SHOULD BE CONNECTED TO
THE SUPPLY VIA AN ISOLATING SWITCH AND SUITABLE
PROTECTION CIRCUIT – FUSE OR CIRCUIT BREAKER
Commissioning Checks
Post Installation Checks
1. Check correct voltage is connected (12 or 24VDC) *.
2. ENSURE POLARITY OF THE VOLTAGE SUPPLY IS CORRECT.
3. Check compass and rudder feedback are plugged in
4. Check remote units plugged in and GPS input connected (if fitted)
5. Check drive unit cable is connected
6. Check loose cables are clipped or tied up.
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