Powering a PG-500 Heading Sensor

Powering a PG-500 Heading Sensor

Postby BlueDefender » Mon Aug 21, 2017 6:00 am

I have a boat that was previously wired for a PG-1000. There are 3 wires where the old heading sensor used to be.

1. single pair for power +- 12V
2. AD10 cable to plotter
3. bare ground

I'm replacing with a PG-500. The PG-500 has a 7-pin connector instead of the old 2-pin that supplies power.

I made up a new 7-pin connector that supplies 12v +- on pins 5&6 and connected the bare ground to the exterior case screw. However, when I turn on the breaker the PG-500 does not power up nor respond to any button presses.

I see that pin-7 in the wiring diagram has a GND connection. This appears to be connected to the external case ground also. Do I need to supply an additional ground connection on pin-7 in order for the unit to power up or do I have a defective unit? Any other reason it wouldn't power up straight away?

Thanks!
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Re: Powering a PG-500 Heading Sensor

Postby Johnny Electron » Mon Aug 21, 2017 6:59 am

No, you should not connect the cable shield wire to ground.
Have you checked the polarity? If your using the proper cable (yes, we have different 7 pin cables) then you should be connected to Red (+) Pin 5 and Black (-) Pin 6 to your power system. If it still isn't powering up, I recommend using a meter at the end of the cable near the unit to see if you have power at the pins.
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Re: Powering a PG-500 Heading Sensor

Postby BlueDefender » Mon Aug 21, 2017 3:58 pm

got it working - thanks.
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Re: Powering a PG-500 Heading Sensor

Postby Johnny Electron » Tue Aug 22, 2017 6:40 am

:jump :jump :jump
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