I am assisting a coworker with the specification of a replacement valve controller and found this in the valve's project planning information.
I don't understand what it's asking for and what I need to be looking for on the output side. How is the output current determined, I thought the load determined the current and all I needed to worry was if the maximum load was within the current rating of the output. Looking to learn something new.
Thanks
I don't understand what it's asking for and what I need to be looking for on the output side. How is the output current determined, I thought the load determined the current and all I needed to worry was if the maximum load was within the current rating of the output. Looking to learn something new.
5.1.2 Digital inputs
The digital inputs require a current of 3 mA ±1.5 mA. To
avoid interference, it may be necessary to increase the
output current by using an additional load resistor on
the signal sensor.
Load resistors may not be fitted inside the IC 40 for reasons
relating to heat dissipation.
Example for 24 V DC and 10 mA:
Thanks