Kuhn 40.1 speed signal

[Chrisw]

Having a bit of difficulty getting the Kuhn 40.1 to get a speed signal, can anyone help?
I have a trimble 500 and a patchwork advance which I took out of our old tractor. The kuhn was able to get a speed signal from the Blackbox, but the trimble is more accurate so trying to use the trimble 500 to provide a speed signal to the kuhn, but it just isn't receiving any pulses. Until I can get the tractor fully fitted up with the AgOpenGps system, is there any other way I can get the Kuhn to register forward speed either from the trimble or from the Canbus plug on the rear pillar, or do I need to go back to having the Trimble for some jobs and the Blackbox for speed signal to the Kuhn?
Forgot to mention the control box is a Quantron E.
Thanks

 

[d williams]

Having a bit of difficulty getting the Kuhn 40.1 to get a speed signal, can anyone help?
I have a trimble 500 and a patchwork advance which I took out of our old tractor. The kuhn was able to get a speed signal from the Blackbox, but the trimble is more accurate so trying to use the trimble 500 to provide a speed signal to the kuhn, but it just isn't receiving any pulses. Until I can get the tractor fully fitted up with the AgOpenGps system, is there any other way I can get the Kuhn to register forward speed either from the trimble or from the Canbus plug on the rear pillar, or do I need to go back to having the Trimble for some jobs and the Blackbox for speed signal to the Kuhn?
Forgot to mention the control box is a Quantron E.
Thanks

Ours has a lead into speed socket mf tractor

 

[Chrisw]

I have a lead that has a serial connector (i think thats what it is called) which fits both the trimble or blackbox and then goes into the round plug on the back of the quantron. Is there a different lead available that would connect the quantron to the canbus plug? Or is there a way of wiring the lead going into the quantron to the canbus socket?

 

[JJT]

You can get a different lead that goes from the quantron box to the round 7pin plug on the tractor.

 

[Andy26]

Having a bit of difficulty getting the Kuhn 40.1 to get a speed signal, can anyone help?
I have a trimble 500 and a patchwork advance which I took out of our old tractor. The kuhn was able to get a speed signal from the Blackbox, but the trimble is more accurate so trying to use the trimble 500 to provide a speed signal to the kuhn, but it just isn't receiving any pulses. Until I can get the tractor fully fitted up with the AgOpenGps system, is there any other way I can get the Kuhn to register forward speed either from the trimble or from the Canbus plug on the rear pillar, or do I need to go back to having the Trimble for some jobs and the Blackbox for speed signal to the Kuhn?
Forgot to mention the control box is a Quantron E.
Thanks

With the CFX750 you had to turn on speed signal in the settings, perhaps the 500 is similar?

As mentioned above you could get a 7 pin plug to get the tractor radar speed to get you going.

 

[Chrisw]

With the CFX750 you had to turn on speed signal in the settings, perhaps the 500 is similar?

As mentioned above you could get a 7 pin plug to get the tractor radar speed to get you going.

Thanks Andy, yes radar output enabled on the trimble.
Now searching for a cable, but not sure what Rauch/Kuhn call it.

 

[Andy26]

Thanks Andy, yes radar output enabled on the trimble.
Now searching for a cable, but not sure what Rauch/Kuhn call it.

Is it not just a 9 pin standard socket on the Quantron?

 

[Chrisw]

Is it not just a 9 pin standard socket on the Quantron?

8 pin socket

 

[Chrisw]

And think this is the plug with the speed signal in the cab?

 

[Chrisw]

Or is it this socket (tractor end)?

 

[e3120]

Or is it this socket (tractor end)?

Yes.

 

[Chrisw]

I'm guessing it would be this connector then....

Thw other plug on the pillar is an 8 pin

 

[Slick]

I'm guessing it would be this connector then....
View attachment 1161166

Thw other plug on the pillar is an 8 pin

Yes it's that one, the 8 pin on the pillar is a diagnostic port.

 

[Chrisw]

Yes it's that one, the 8 pin on the pillar is a diagnostic port.

So trying to get my head around all of this, I can either wire up an 8 way plug from quantron to 7 pin iso plug on tractor using pins 1 on tractor to pin 7 on quantron for radar and pin 7 on tractor to pin 2 on quantron for ground...... or trimble pin 9 on the db9 connector to pin 7 on quantron for signal, and pin 8 on the db9 to pin 2 on the quantron?
Unless Kuhn isn't stupidly expensive for an 8 pin to 7 pin cable

 

[Northern farmer]

Does the tractor have a ground speed radar? Not all have, pin #2 would then be an option.

 

[Chrisw]

Does the tractor have a ground speed radar? Not all have, pin #2 would then be an option.

I am guessing it has, 2013 case puma. thats where I am thinking pin 2 on quantron to pin 7 on the tractor iso plug.

 

[Chrisw]

Tried all the pin combinations from both the 7 pin iso tractor socket and combinations on the 8 pin quantron end and just couldn't get it to see any pulses, so had to go back to putting the blackbox back in to provide a speed signal

 

[Northern farmer]

Tried all the pin combinations from both the 7 pin iso tractor socket and combinations on the 8 pin quantron end and just couldn't get it to see any pulses, so had to go back to putting the blackbox back in to provide a speed signal

Did you verify that your implement socket gives speed pulses when the tractor is moving? Oscilloscope would be best but a cheap multimeter gives an idea if you measure pins 1 and 2 (against ground on pin 7) on AC voltage mode.

Did you figure out which pin the blackbox is feeding on your screen?

 

[Chrisw]

Did you verify that your implement socket gives speed pulses when the tractor is moving? Oscilloscope would be best but a cheap multimeter gives an idea if you measure pins 1 and 2 (against ground on pin 7) on AC voltage mode.

Did you figure out which pin the blackbox is feeding on your screen?

No, didn't have testers for that, unfortunately. I was relying on the pin out diagrams for both the quantron and the iso socket to be right, and also tried other combinations that people had had success with, but alas, none of them worked. No idea what pins provide the signal from the blackbox, all I know is that it works. But thank you for all the advise. Hopefully I will have time to sort out a full AgOpenGPS system for the Puma and take a speed from that in time.

 

[Northern farmer]

Did someone already confirm that the blackbox gives a speed pulse signal? It could be NMEA from the blackbox in which case you would try to find NMEA from the Trimble screen.