Siemens SINUMERIK 840D Function Manual page 207

Figure 6-3
Block change criterion: "Braking ramp" (IPOBRKA)
If, when activating the block change criterion "brake ramp", a value is programmed for the
optional parameter <instant in time>, then this becomes effective for the next positioning
motion and is written into the setting data synchronized to the main run. If no value is specified
for the block change instant in time, then the actual value of the setting data is effective.
SD43600 $SA_IPOBRAKE_BLOCK_EXCHANGE
The time at which the block change can be realized is specified as a percentage of the braking
ramp:
● 100% = start of the braking ramp
● 0% = end of the braking ramp, the same significance as block change criterion IPOENDA
Programming
IPOBRKA(<axis>[,<instant in time>])
IPOBRKA:
<Axis>:
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Block change for path axis and positioning axis type 3
Block change criterion: Deceleration ramp
Effectiveness:
Channel axis name (X, Y, ....)
modal
P2: Positioning axes
6.6 Block change
207