John Marston
Member
Hello All, I design a PLC system (multiple PLC platforms) to control a servo valve that positions a hydraulic cylinder. The setpoint is given to me by the customer, feedback is provided by cylinder mounted LVDT (or LDT), and the servo is driven by a +/-60mA signal.
My problem is, there's only one manufacturer that I have found that has a device that can provide an output of +/-60mA. From my PLC, I output a 4-20 mA CV signal to the converter which then converts the signal to +/-60mA that goes to the servo. The converter I use is a Axiomatic IC-DR-13. It works great but it isn't CSA/CE or rated for hazardous areas.
Would a typical servo amplifier work? I need something with a 4-20 input and a +/-60mA output.
My problem is, there's only one manufacturer that I have found that has a device that can provide an output of +/-60mA. From my PLC, I output a 4-20 mA CV signal to the converter which then converts the signal to +/-60mA that goes to the servo. The converter I use is a Axiomatic IC-DR-13. It works great but it isn't CSA/CE or rated for hazardous areas.
Would a typical servo amplifier work? I need something with a 4-20 input and a +/-60mA output.