[ATR243-20ABC] Conversion of PT1000 input to 4-20mA output

user12761 · Post by **user12761** » 03/02/2016, 16:22

Hi,

I need to convert my input signal (which is PT1000 Temperature Sensor) to 4-20ma current output.

with following parameters set on my controller, the output doesn't vary against change in temperature value (with voltage set as output) .

C.out : c0.1
Sen: Pt 1t
LoLi: 0
uPLi: 50
retr: uo.P
LoLr: 0
uPLr: 10

Kindly advice and Highly appreciate your support on the same.

Post by **Pixsys tecnico 1** » 03/02/2016, 16:30

Hi,
"LoLr" and "uPLr" are wrong:
in "LoLr" you must insert the temperature read so the regulator generates 4mA.
in "uPLr" you must insert the temperature read so the regulator generates 20mA.

So I think they can be 0..100°C not 0..10 (probably you are reading a temperature always greater then 10° so the regulator gives always a 20mA output.

Also "retr" is wrong. if you want to generatre 4..20mA output, you must set it as "mA.P"

Check also jumpers position to enable 4..20mA output (page 14)

user12761 · Post by **user12761** » 04/02/2016, 8:06

Hi, Thanks for your advise, Its working now.

Pixsys Forum