Author Topic: Analog inputs  (Read 119 times)

Offline carbon1993

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Analog inputs
« on: January 05, 2020, 03:43:48 am »
Hi,

I am new to Vems and want to install a few new sensors. But canĀ“t really say which inputs to use. The sensors are oil temp and pressure in one sensor. And a secondary water temperature. I can use pin 28 for the 5V. But what pins should i use for the oil and water sensor.

I rather want to seek help with the professionals than blow my ecu up.

this is the spec sheet
https://imgshare.io/image/HK16Y
https://imgshare.io/image/HKFsZ
https://imgshare.io/image/HKVJ4
« Last Edit: January 05, 2020, 03:48:09 am by carbon1993 »

Offline gunni

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Re: Analog inputs
« Reply #1 on: January 06, 2020, 10:08:00 pm »
Hi.

connect to the ECU go to View - Groups - Analog inputs all

There on the left hand side you can see all the analogs, wire the temp sensor to a signal that is already sitting at 5v, meaning its been pulled up already.
Only wire the pressure into a analog that is floating about / not near 5v already.

Do you have a resistance curve or voltage curve for the temp sensor against a reference voltage and pullup ?
Do you know the voltage output info of the pressure sensor?

Offline carbon1993

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Re: Analog inputs
« Reply #2 on: January 10, 2020, 03:20:00 am »
Hi thanks for the reply! Ok when i got the perfect pin. Then channel (for example) CH4 would be a ec36-pin3 P259 channel?

The oil pressure and temperature is in one sensor.

I have the specefic sheets for the oil sensor temp/pressure somewhere but can't seem to find it.... The water temperature should be the same one as already used inengine outlet.

So if i undersstand correct just attach the + to a 5volt to one of the p259 channels that have 5V. Then ground to pin 36?

Probably will need help again setting it up in Vems.

Offline gunni

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Re: Analog inputs
« Reply #3 on: January 13, 2020, 01:50:17 pm »
Definitely not pin 36 but 26.

The combined sensor will have two analogs coming out, one pressure and one temp so each wire there needs wiring to the appropriate place.