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Author Topic: AC Servo Load/Torque VU Meter?  (Read 1313 times)

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Re: AC Servo Load/Torque VU Meter?
« Reply #10 on: January 14, 2018, 04:34:55 PM »
Cheap  :)
Re: AC Servo Load/Torque VU Meter?
« Reply #11 on: January 14, 2018, 05:23:20 PM »
Hi,
no that won't work, its an AC sensor, aka a current transformer.

If your spindle is turning very slowly, say 120 rpm, or 2 revs per second. The AC current supplied to your servo would
have a frequency of 2Hz, not the 50 or 60Hz expected and required by the sensor you have linked to.

You need a sensor capable of measuring DC and AC which requires a Hall type sensor. The ones (LEM) I bought for my
2.6kW servo are 15A nominal and linear to 48A and cost me about $20NZD, about $15USD. I doubt you'll find
much cheaper except rubbish Chinese junk.

Craig
My wife left with my best friend...
     and I miss him!
Re: AC Servo Load/Torque VU Meter?
« Reply #12 on: January 14, 2018, 06:12:26 PM »
According to the manual on page 12 you do have an analog output that will allow you to monitor what you want.


Mike
We never have the time or money to do it right the first time, but we somehow manage to do it twice and then spend the money to get it right.