PLUS+1 User Forum
PLUS+1 Hardware => Controllers => Topic started by: pinias on November 09, 2010, 03:56:25 PM
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Hello All,
Does any one have used the frequency input pin of the MC050-10 controller? had it worked? I have tryied to connect a magnetic pick up sensor. the sensor is sending a sine wave form 30 mV peak to peak however the controller does not pick up the signal.
according witht he technical specification pin/out of the controller it should work. I may be doing something wrong in the pin configuration.
Thanks ::)
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Hello,
Your sensor has to send a voltage that varies between 0 and 30 mV otherwise it's not possible for the input to register it.
With PinConfig1 set to 1 the threshold should match, according to the API specification for the controller. You find the API specification in the Hardware file for the controller.
This is the thresholds for PinConfig1 = 1:
Rising Min/Max 0,191V/0.279V
Falling Min/Max 0.067V/0.187V
Stefan
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Does it matter if it is a sine wave form?
Regards
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Hello,
Sorry for the late answer.
No, it doesn't matter.
Best regards
Stefan
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Hello Stefan,
look, I need to get clutch RPMS, so I installed a KKPG16708 PICK UP SENSOR. I am using a MC050-10 controller and I am using PIN 18 for inpit of the pick up sensor.
the picture attached shows the pin config and the way the freq to rpm block is connected. I understand in thsi way it should work or I should be able to read RPM, however I read nothing.
what could I be doing wrong?
My system is 24VDC.
this is the fisrt time I am using a pick up with the PLUS 1 so no too much idea what could be wrong int he firmware.
I have tried other advises posted in this fórum but so far no luck
I appreciate any feedback on this
Thanks
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Hi Pinias
Try setting PinConfig1 = 0.
It worked for me.
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Jakob,
I have tried with piconfig1=0, but it does not work
my system is running at 24V. I have also tried the KKPG14708 for 5VDC sensor power supply but same thing it does not read any thing.
I split the output of the freq to rpm block into 4 U8 variables so that I can put the information in a CAN message (cause the output is U32)
I do check with the Canking in order to be sure the message is there and yes it is there but it always has 0 in the 4 arrays.
what pick up sensor have you used in your application?
I appreciate any advise
Thanks
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Ok.
I used the KPPG156, which is uses a 4.5 to 8.5 V supply, and connected it to one of the quad-count inputs.
Have you had an oscilloscope connected to the sensor output?
Because the controller should at least register something.
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pinias: if you can, move your system very slowly to trigger the sensor then:
- Confirm the disconnected sensor output going with your voltmeter and/or oscilloscope.
- Confirm the connected sensor output on the MC050 input pin, again with the same voltmeter and/or oscilloscope.
- Use the Service Tool to monitor the pin and see if the input goes high & low as the tooth slowly passes in front of the sensor.
- Speed thing up a little bit and check the incrementing Count value.
What frequency range are you expecting?
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Hi Gents
I have used many sensors to monitor rpm or ground speed, with no issues.
However, I had one sensor sent me by a OEM with no specification available.
I put a very small electrolytic capacitor in series with it, omg that did it. Been a year still working and allowing smooth shifting.
Bgtwuk
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thaks all for the advices.
I found out that the pump did not come with the speed ring (lol :o).
so we decided not to use it...
thanks again