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Farm Machinery
Precision Farming & GPS
Berthoud/Trimble speed signal
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<blockquote data-quote="Pheasant Surprise" data-source="post: 4397636" data-attributes="member: 1103"><p>That makes sense now (with 20/20 hindsight!) - just looked up the D.P.Tronic wiring diagram. Can clearly see the two inputs on pins 17 and 18 for use with either NPN or PNP type 3-wire proximity sensors.</p><p></p><p>If not using such a sensor (as you are), then you would need to swap to the correct input, depending on whether the radar output is behaving as "switched positive" or "switched negative". Speed signal output from tractor's 7-pin ISO socket will behave like a PNP and simulated radar from Trimble must behave like NPN.</p><p></p><p></p><p>[ATTACH=full]593672[/ATTACH]</p></blockquote><p></p>
[QUOTE="Pheasant Surprise, post: 4397636, member: 1103"] That makes sense now (with 20/20 hindsight!) - just looked up the D.P.Tronic wiring diagram. Can clearly see the two inputs on pins 17 and 18 for use with either NPN or PNP type 3-wire proximity sensors. If not using such a sensor (as you are), then you would need to swap to the correct input, depending on whether the radar output is behaving as "switched positive" or "switched negative". Speed signal output from tractor's 7-pin ISO socket will behave like a PNP and simulated radar from Trimble must behave like NPN. [ATTACH=full]593672[/ATTACH] [/QUOTE]
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Berthoud/Trimble speed signal
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