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« on: January 17, 2009, 12:14:05 AM »
Got my first servo motor in for testing and really don't understand the setup for it in Mach 3 ( my steppers work fine ). I can get the servo to turn real slow in one direction but it will not move in the opposite direction (mach screen is showing moverment). In the motor tuning section I have no idea where to set the "Steps Per" "Velocity" "Acceleration" "Step Pulse" and "Dir Pulse".
Would appreciate some pointers in getting me going the right direction.
Thanks
Dave
Here is the specs on things.
I am using a Gecko G320 with a Cand CNC EZservo board, UBOB and related electronics. The G320 is set as follows.
DAMP and GAIN at the 10 'clock position (8 'oclock = fully CCW, 4 'oclock = fully CW). LIMIT fully CW.
Here are the specs on the motor.
-Skewed Rotor Design
-constant torque: 1.2 N.m ( 170 oz-in)
-peak torque: 6.0 N.m (850 oz-in)
-max. speed at voltage constant: 4200 rpm
-terminal voltage: 72 VDC
-continuous current: 8.8A
-peak current: 40 A
-torque constant (KT): 0.14 Nm/am
-voltage constant(KE): 15 V/100rpm
-resistance: 0.52 ohm
-inductance: 1.8 mh
-inertia: 3.39 kg/cm^2
The Encoder as follows.
US Digital: E5S-500-250-EG-PKG2
Shaft-Mount Optical Encoder with latching connector, 500 CPR
Here is the specs on the ball screw.
RM2505 - 25mm diameter, 5 lead, turn circuits 2.5*2