Rockwell Automation 8510 AC Spindle Drive System Programming Manual - Manual (Page 26)

Programming
Chapter 2
2-23
PROGRAM VALUE
This is a menu title that allows selection of the steps required to
calibrate the analog input by presetting the display as a normal scrolled
variable. Use this calibration method if the actual command voltages are
not available.
Zero Volt In
This parameter requires the user to program the value of the command
voltage that is equal to the zero speed command.
Data Range: VOLT 0.000 to
±
9.999
Default Value 0.000
Max +Volt In
This parameter requires the user to program the value of the command
voltage that is equal to the maximum speed command.
Data Range: VOLT 00.000 to 10.000
Default Value 10.000
HI SPD RANGE
This menu selects the various setup and tuning parameters that are used
when the Spindle/Servo Mode Select input is On and the Servo Input
Scaling Low/High input is On. Also, the velocity loop tuning parameters
set for this mode will be used when the drive is performing the spindle
orient operation.
Max Cmnd Spd
Defines the maximum motor speed that will correspond to the
maximum input command. The maximum motor speed can be
programmed to any level required by the application (but less than the
maximum allowable speed for the motor/drive combination) and
achieve full scale speed command resolution at that speed. Typically
this parameter would be used for C axis rapid traverse, solid tapping
operation, or possibly precision spindle orient operations from the CNC
and would be set to a relatively low speed.
Data Range: RPM 00000 to 30000
Default Value 00084
The tuning parameters in the 8510 drive are based on the “per unit” system.
For this drive the base quantities are defined as follows:
1 p.u. Torque = Peak Motor Torque
1 p.u. Velocity or Velocity Error = Motor Base Speed
1 p.u. Inertia = Time to accelerate to 1 p.u. Velocity with 1 p.u. Torque
Refer to Chapter 3 for a detailed description of drive tuning and the use of
the “per unit” system in determining optimum drive tuning parameters.