how this controller will provide the output ?

how this controller will provide the output ?

https://www.jumo.de/products/pl70/702040/jumo-itron---compact-controller-702040.html

JUMO iTRON 32, Type 702040, 48mm x 24mm format





can we supply the 24 Vdc at terminals N & L1 (+ve 24 Vdc & ground)........ Also supply 24Vdc to connector screw 9 so that the relay produce the output at terminal 8 ........ Would it produce the output ?

If it would then can we use it as a A1 (coil voltage 24 Vdc of the contactor) ?

thanks

Yes
relay is a dry contact so alllllllllllllll good

can we supply the 24 Vdc at terminals N & L1 (+ve 24 Vdc & ground).

Click to expand...

It depends on power supply , this controller has 3 power options .
Look type designation number code in datasheet , (Order details / Type designation)

(5) Supply
16 = 10—18V DC
22 = 20—53V AC/DC 48—63Hz
23 = 110—240V AC -15/+10% 48—63Hz

Relay contacts 250Vac / 3A max. with resistive load. (8 & 9)

Load supply and controller supply can be common.
(in case both have same voltage ratings)



Controller datasheet
https://www.jumo.de/attachments/JUMO/attachmentdownload?id=3505&filename=t70.2040en.pdf

The supply is 24 VDc so the output should also be 24 Vdc w.r.t Ground ?????

Can we replace this digital temperature controller with any type of digital controller ?

thanks

Is it the thumb rule that if a temperature sensor (of any kind) is not connected with the temperature controller OR the temperature sensor (of any kind) gone bad (open) then the output relay of the controller won't generate the output ???

Is it the basic fact about temperature controllers ?

The supply is 24 VDc so the output should also be 24 Vdc w.r.t Ground ?????

Click to expand...

Can be, but must not,
the maximum load is shown in datasheet
Relay contacts 250Vac / 3A max. with resistive load.
Output can be 0...250Vac and usually used 1/2 of that with DC , ie. 0...125Vdc

Can we replace this digital temperature controller with any type of digital controller ?

Click to expand...

New direct replacement controller must have:
-same sensor type input ( see connection 1,2,3,4)
-same output, ie floating normally open relay contact with same ratings ( see connection 8,9)
-same supply voltage ( see connection N,L1)
-look connections 5,6 , if not used, dont care
--- if used, same function must be found in replacement controller

Check parameters in old controller to find out setpoints , modes and configurations.
(datasheet pages 6...7)

Is it the thumb rule that if a temperature sensor (of any kind) is not connected with the temperature controller
OR the temperature sensor (of any kind) gone bad (open) then the output relay of the controller won't generate the output ???

Click to expand...

Generally yes, all industrial temperature controllers should have indication and monitoring of the sensor circuit faults.
In practice, to be 100% sure of that , it is important to test this monitoring action,
after all the parameters and configurations is set for an used application .