Access or read amperage going to the motors

Unless you are using "VFD" to mean "Servo Drive"?

It is a Fanuc AC servo motor Model 5 (A06B-0512-

The driver is model A20B-1001-0770. Specs are attached.

The machine is a Cincinnati Milacron Sabre 500.

Is there a way to tell if it is a VFD or not? From the documentation I have, it says "VFD"

Well, I suppose that all AC servo drives are also Variable Frequency Drives, because they are drives and work at variable frequency.

But VFD has come to be used mainly for drives where the primary control is via frequency, whereas most AC servo drives control the current and the frequency is set by the motor speed via the commutation feedback.

Anyway, with that clarified.

In the HAL there is likely to be a PID for each axis, the output of which goes to the Motenc DAC. That PID output pin will offer an approximate measure of motor load.

Thank you so much, that made things more clear to me.

One last question though, sorry for the repetition, but can't I see the connection from the Motenc to the driver in HAL? Why they don't show in Hal show?

Or they are there, but I have to create the pins and signals to be able to monitor them?

Can you attach your HAL file(s)? I haven't seen enough Motenc configs to be able to guess the pin names.

Here:

The links are here:

core_servo.hal

and


motenc_motion.hal

The same signal names are shared throughout the HAL, so can be used in multiple files.

Note that "linksp" is a somewhat outdated command. "net" does almost exactly the same thing but does not require "newsig" to create the signal.