Siemens SINUMERIK 840D sl Function Manual page 277

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Kneeshaped acceleration characteristic curve

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)

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

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

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

Basic logic functions: Acceleration (B2)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

MC_GCODE_RESET_VALUE[20] = 3 (DRIVE)

4.4 Kneeshaped acceleration characteristic curve

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