Custom Drive Scaling Attributes Dialog Box Overview (AXIS_SERVO_DRIVE)
Use this dialog box to monitor the position, velocity, acceleration, and torque scaling attributes or parameters for an axis of the type AXIS_SERVO_DRIVE.
When a parameter transitions to a read-only state, any pending changes to parameter values are lost, and the parameter reverts to the most recently saved parameter value.
When multiple workstations connect to the same controller using the Logix Designer application and invoke the Axis Wizard or Axis Properties dialog, the firmware allows only the first workstation to make any changes to axis attributes. The second workstation switches to a Read-Only mode, indicated in the title bar, so that you may view the changes from that workstation, but not edit them.
Parameters
Advanced Custom Scaling
Use this dialog box to display internal SERCOS position, velocity, acceleration and torque scaling attributes established by the ControlLogix system for an axis of the type AXIS_SERVO_DRIVE.
Attribute/Parameter | Description |
PositionDataScaling | This 16-bit attribute displays the scaling method used on position values, e.g., Position Command Value, Position Feedback Value 1 (Motor Feedback), and Position Feedback Value 2 (Auxiliary Feedback). Because only the first 8 bits (0 - 7) of this attribute are used (8 - 15 are reserved), decimal values of this attribute range from 0 to 255. Bit values are: Bits 2-0: Scaling method 000 - no scaling 001 - linear scaling 010 - rotational scaling Bit 3: 0 - preferred scaling 1 - parameter scaling Bit 4: Linear Units 0 - meters 1 - inches Bit 4: Units (must be 0) 0 - degrees 1 - (reserved) Bit 5: (reserved) Bit 6: Data reference 0 - at the motor shaft 1 - at the load Bit 7: Processing format 0 - absolute format 1 - modulo format |
PositionDataScalingFactor | This 16 bit unsigned attribute displays the scaling factor for all position data in a drive, with decimal values ranging from 1 to 2^16-1. |
PositionDataScalingExp | This 16 bit unsigned attribute displays the scaling exponent for all position data in a drive, with decimal values ranging from -2^15 to 2^15-1. Bit values are: Bit 14-0: Exponent value Bit 15: Exponent sign: 0 - Positive 1 - Negative |
VelocityDataScaling | This 16-bit attribute displays the scaling method to use on velocity values (e.g., Velocity command value, Velocity feedback value, and Homing Velocity), with decimal values ranging from 0 to 127. Bit values are: Bits 2-0: Scaling method 000 - no scaling 001 - linear scaling (not supported) 010 - rotational scaling Bit 3: 0 - preferred scaling 1 - parameter scaling Bit 4: Units for rotary 0 - revolutions 1 - (reserved) Bit 4: Units linear 0 - meters 1 - inches Bit 5: Time 0 - minutes 1 - seconds Bit 6: Data reference (must be 0) 0 - at the motor shaft 1 - at the load (not implemented) All other bits are reserved. |
VelocityDataScalingFactor | This 16-bit attribute displays the scaling factor for all velocity data. Decimal values for this attribute range from 1 to (2^16)-1. |
VelocityDataScalingExp | This 16-bit attribute displays the scaling exponent for all velocity data. Decimal values for this attribute range from -2^15 to (2^15)-1. |
AccelerationDataScaling | This 16-bit attribute displays the scaling method to use on acceleration values, with decimal values ranging from 0 to 127. Bit values are: Bits 2-0: Scaling method 000 - no scaling 001 - linear scaling 010 - rotational scaling Bit 3: 0 - preferred scaling 1 - parameter scaling Bit 4: Units 0 - radians 1 - (reserved) Bit 5: Time 0 - seconds 1 - (reserved) Bit 6: Data reference 0 - at the motor shaft 1 - at the load (not implemented) All other bits are reserved. |
AccelerationDataScalingFactor | This 16 bit unsigned attribute displays the scaling factor for all acceleration data in a drive, with decimal values ranging from 1 to (2^16)-1. |
AccelerationDataScalingExp | This 16 bit unsigned attribute displays the scaling exponent for all acceleration data in a drive, with decimal values ranging from -2^15 to (2^15)-1. Bit values are: Bit 14-0: Exponent value Bit 15: Exponent sign: 0 - Positive 1 - Negative |
TorqueDataScaling | This 16-bit attribute displays the scaling method to use on torque values (e.g. , Torque Command Value, and Bipolar torque limit value) with decimal values ranging from 0 to 127. Bit values are: Bits 2-0: Scaling method 000 - percentage scaling 001 - linear scaling (force) 010 - rotational scaling (torque) Bit 3: 0 - preferred scaling 1 - parameter scaling Bit 4: Units
0 - Newton meter (Nm) 1 - inch pound force (lbf) Bit 5: (reserved) Bit 6: Data reference 0 - at the motor shaft 1 - at the load All other bits are reserved. |
TorqueDataScalingFactor | This 16 bit unsigned attribute displays the scaling factor for all torque data in a drive, with decimal values ranging from 1 to (2^16)-1. |
TorqueDataScalingExp | This 16 bit unsigned attribute displays the scaling exponent for all torque data in a drive, with decimal values ranging from -2^15 to (2^15)-1. Bit values are: Bit 14-0: Exponent value Bit 15: Exponent sign: 0 - Positive 1 - Negative |
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