Servo drive config and first movement

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2 years 10 months ago #287490 by tommylight

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2 years 10 months ago #287525 by TimP
Changing PID doesn't change much only motor starts to heat, i think there is something in driver settings it self.

Could it be?
  • position deviation excess Threshold
  • position reach threshold
  • position arrival time window
  • position loop gain

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2 years 10 months ago #287556 by tommylight
Are the drives in "position" or "Velocity" or "Torque" mode?
Assuming this behaves like a normal servo system, so changing PID settings at random gets you nowhere.
There are two ways of servo tuning in LinuxCNC:
1. If you already know the technical specs of the drives/motors and scale the output accordingly, makes it easy to tune.
2. specs not known so a procedure must be followed to test and tune PID and FF values

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2 years 10 months ago - 2 years 10 months ago #287560 by TimP
forgot to mention this, Cyclic Synchronous Position Mode (CSP)
this is what i know about driver- motor

Motor
Torque 1.27NM
Rotor inertia 0.26X10^(-4)
Rated voltage 220V
Rated power 400W
Rated speed 3000rpm
Maximum speed 5000rpm
Winding resistance 7.2
Encoder 17 bit Magnetic encoder

Driver
RSE 400W AC Servo Driver
Continuous current 2.8A
Max current 8.4A

 SDOs
Warning: Spoiler!
Last edit: 2 years 10 months ago by TimP.

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2 years 10 months ago #287877 by TimP
also what should be set to MAX_OUTPUT? is it 1to1 voltage so if my servo rated for 220v should i put there 220 or there is a formula for this?

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2 years 10 months ago - 2 years 10 months ago #287881 by Solvarg
"Changing PID doesn't change much only motor starts to heat"

So the motor starts to heat but you see no movement..
Sorry for this stupid question but is there a brake on the motor?
Can you turn the shaft by hand?
Last edit: 2 years 10 months ago by Solvarg.

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