Knee­shaped Acceleration Characteristic Curve; Activation - Siemens SINUMERIK 828D Function Manual

4.3.4 Knee­shaped acceleration characteristic curve
4.3.4.1

Activation

Key statement
The example given illustrates how the knee-shaped acceleration characteristic curve is activated on the basis of:
• Machine data
• Part program instruction
Machine data
• Parameterizing the characteristic curve (example only)
X axis
MD35220 $MA_ACCEL_REDUCTION_SPEED_POINT[X] = 0.4
MD35230 $MA_ACCEL_REDUCTION_FACTOR[X] = 0.85
MD35242 $MA_ACCEL_REDUCTION_TYPE[X] = 2
MD35240 $MA_ACCEL_TYPE_DRIVE[X] = TRUE
Y axis
MD35220 $MA_ACCEL_REDUCTION_SPEED_POINT[Y] = 0.0
MD35230 $MA_ACCEL_REDUCTION_FACTOR[Y] = 0.6
MD35242 $MA_ACCEL_REDUCTION_TYPE[Y] = 1
MD35240 $MA_ACCEL_TYPE_DRIVE[Y] = TRUE
Z axis
MD35220 $MA_ACCEL_REDUCTION_SPEED_POINT[Z] = 0.6
MD35230 $MA_ACCEL_REDUCTION_FACTOR[Z] = 0.4
MD35242 $MA_ACCEL_REDUCTION_TYPE[Z] = 0
MD35240 $MA_ACCEL_TYPE_DRIVE[Z] = FALSE
• Activation by setting as the channel-specific default setting
MC_GCODE_RESET_VALUE[20] = 3 (DRIVE)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
B2: Acceleration
4.3 Examples
261