Siemens SINUMERIK 840D sl Function Manual

Examples
4.4 Kneeshaped acceleration characteristic curve
Basic logic functions: Acceleration (B2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
59
4.4 Kneeshaped acceleration characteristic curve
4.4.1 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)

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based