Hello,
We are currently working on a project that involves connecting a linear potentiometer to our Beckhoff PLC. After researching, we identified the EL3255 as a suitable EtherCAT Terminal with 5-channel analog input specifically designed for potentiometers (300 Ω…50 kΩ, 16 bit).
Our plan is to supply either 10V or 24V to the potentiometer and then route the wiper connection back to the input. This approach would allow us to effectively monitor the potentiometer's position.
However, we encountered a challenge related to the potentiometer's maximum recommended wiper current, typically specified as 1µA or 1mA (for 1 minute during an error). The EL3255 documentation mentions a maximum output current of "0.3 A total supply current for the potentiometers."
Our question is whether it is possible to adjust the output current through the Beckhoff settings. Alternatively, do you have any recommendations on ensuring that our current remains below the 1µA limit as recommended by most potentiometer specifications?
Thank you in advance for your assistance.
Regards,
Jasper
We are currently working on a project that involves connecting a linear potentiometer to our Beckhoff PLC. After researching, we identified the EL3255 as a suitable EtherCAT Terminal with 5-channel analog input specifically designed for potentiometers (300 Ω…50 kΩ, 16 bit).
Our plan is to supply either 10V or 24V to the potentiometer and then route the wiper connection back to the input. This approach would allow us to effectively monitor the potentiometer's position.
However, we encountered a challenge related to the potentiometer's maximum recommended wiper current, typically specified as 1µA or 1mA (for 1 minute during an error). The EL3255 documentation mentions a maximum output current of "0.3 A total supply current for the potentiometers."
Our question is whether it is possible to adjust the output current through the Beckhoff settings. Alternatively, do you have any recommendations on ensuring that our current remains below the 1µA limit as recommended by most potentiometer specifications?
Thank you in advance for your assistance.
Regards,
Jasper