M-Series Operator’s Manual 4/9/15
Parameters 200-207– OPTIC 4 Tach Volts Per 1000 RPM
These parameters control the digital Tach output on the Optic4 boards. They are used on drives like old Fanuc velocity
mode drives that require a tach input. The value put here is the volts/1000 RPM off of the motor. A negative value can
be entered to invert the tach voltage compared to the encoder count derived velocity direction from the encoder.
Parameters 208-215 MPU-based Lash/Screw Compensation Acceleration Coefficient
These parameters control the speed of the Lash and/or Screw Compensation for axes 1-8. The lash will be taken up
with acceleration equal to the coefficient multiplied by the acceleration rate for the axis. A value of zero would
effectively disable MPU-based Lash and/or MPU-based Screw Compensation.
*NOTE: These coefficients are not used by PC-Based Lash nor PC-based Screw Compensation
Parameters 216 PC Based Lash Compensation on/off
This parameter controls which Lash Compensation Algorithm to use. The default value of 0 is recommended because
it allows lash compensation to occur during any kind of motion. If PC Based lash is used then only during an MDI or
programmed move (but not during jogging) will lash compensation be applied.
Function Value
Use MPU-Based Lash Compensation 0
Use PC-Based Lash Compensation 1
*NOTE: Lash/Screw Compensation Acceleration Coefficients (parameters 208-215) are not used by PC-Based Lash
Compensation.
Parameters 217 PC Based Screw Compensation on/off
This parameter controls which Screw Compensation Algorithm to use. The default value of 0 is recommended because
it allows screw compensation to occur during any kind of motion. If PC-Based scew compensation is used then only
during an MDI or programmed move (but not during jogging) will screw compensation be applied.
Function Value
Use MPU-Based Screw Compensation 0
Use PC-Based Screw Compensation 1
*NOTE: Lash/Screw Compensation Acceleration Coefficients (parameters 208-215) are not used by PC-Based Screw
Compensation.
Parameters 220-231 – Smoothing Parameters
These parameters are used for controlling the behavior of the Smoothing feature used during feed per minute moves.
In particular, parameter 220 turns Smoothing on or off. When Smoothing is turned on, extreme care must be practiced
to ensure that the rest of the Smoothing parameters are set to reasonable values, or else damage to the machine may
result. For further Smoothing information, please see the sections “Smoothing Configuration Parameters”and
“Smoothing Setup Menu” later in this chapter.
Parameters 236-239 – Motor Cooling Coefficients for axes 5-8
See parameters 20-30 for more information.
Parameters 252-255 – Autotune Ka Performance parameters for axes 5-8
See parameters 87-90 for more information.
To Next Page
Loading...
