Nc-Controlled Extended Stop - Siemens SINUMERIK 840D sl Function Manual

6.2.4

NC-controlled extended stop

Parameter assignment
NC-controlled extended stopping is parameterized with:
MD37500 $MA_ESR_REACTION = 22
Definition of the timing behavior
The following machine data is used to define the timing for extended stopping:
MD21380 $MC_ESR_DELAY_TIME1 (delay time, ESR axes)
MD21381 $MC_ESR_DELAY_TIME2 (ESR time for interpolatory braking)
Delay time for ESR axes
For the time set in MD21380 $MC_ESR_DELAY_TIME1, the axes are still traversed as
programmed up to this instant in time. After the time expires, traversing movements are
braked in an interpolatory fashion along their programmed path.
ESR time for interpolatory braking
The maximum time for interpolatory braking is the time set in MD21380
$MC_ESR_DELAY_TIME2. After this time expires, fast braking with subsequent tracking is
initiated.
To illustrate this
T1 = MD21380 $MC_ESR_DELAY_TIME1
T2 = MD21381 $MC_ESR_DELAY_TIME2
Figure 6-3
Note
For safety reasons, the sum of T1 and T2 should not exceed a maximum value of approx. 1
second.
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Time response for NC-controlled extended stopping
R3: Extended stop and retract
6.2 Control-managed ESR
367