How exactly does the analog output of the UMI 7764 conected to the motion controller 7344 works, I have to build the Servo Amplifiers so I need the most detailed information you can give me. Thanks

[maia]

We want to control a robotic arm using three DC Servo motors using the Motion Control 7344 and the UMI 7764. We are students with a short budget of the Universidad Simón Bolívar from Venezuela and one of the tasks is to construct the Servo Amplifier for each axis. We appreciate any help

[Brent_R]

When operating in servo mode, the 7344 continuously reads the position of your feedback device and compares it to the current trajectory position. The card implements a PID control loop in hardware that monitors the position error and outputs an analog command to correct the error. This PID loop updates at 62.5 us per axis. The analog output represents a torque command for the amplifier and has a standard range of +/-10V. The PID control on the 7344 closes both the position and velocity feedback loops. Your amplifier should convert the voltage command to a current level for the motor (transconductance). You can change the upper limit, lower limit, and offset programatically if you like, however +/-10V is the standard.

Regards,

Brent R.
Applications Engin
eer
National Instruments