Siemens SINUMERIK 840D sl Function Manual page 268

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2.18 Kneeshaped acceleration characteristic curve

Dependencies

If the knee-shaped acceleration characteristic curve is parameterized for a machine axis,

then this becomes the default acceleration profile for all traversing operations.

If the effective acceleration profile is changed for a specific path section using the SOFT or

BRISK part-program instructions, then an appropriate substitute characteristic curve with

lower dynamic limit values is used in place of the knee-shaped acceleration characteristic

The knee-shaped acceleration characteristic curve can be reactivated by reprogramming

Axis-specific activation (DRIVEA)

Functionality

The knee-shaped characteristic curve is activated for all single-axis interpolations

(positioning axis, reciprocating axis, etc.) for specific axes using the part-program instruction.

Effective: modal

• Value range: Axis identifier for channel axes

Reset response

The channel-specific default setting is activated via a reset:

MD20150 $MC_GCODE_RESET_VALUES[20]

Dependencies

If the knee-shaped acceleration characteristic curve is parameterized for a machine axis,

then this becomes the default acceleration profile for all traversing operations.

If the effective acceleration profile is changed for a specific axis using the SOFTA or BRISKA

part-program instructions, then an appropriate substitute characteristic curve is used in place

of the knee-shaped acceleration characteristic curve.

It is possible to switch back to the knee-shaped acceleration characteristic curve for a

specific axis by programming DRIVEA.

Basic logic functions: Acceleration (B2)

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

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