Siemens SINUMERIK 828D Function Manual page 323

F1: Travel to fixed stop
6.3 Travel to fixed stop
Terminal EP (Enable Pulses) can be controlled with MD37002
With the machine data:
MD37002 $MA_FIXED_STOP_CONTROL
the response in the case of pulse inhibit at the stop is controlled.
Deleting the pulses by terminal 663 or the "Pulse enable" IS DBX31, ...DBX21.7 will not abort the function. As a
result, the drive will press against the fixed stop again without any further operating action when the machine is
restarted.
The rise time of the torque corresponds to the time needed by the current controller of the drive to reach the
limitation again.
If the pulses are deleted when a deselection is active (waiting for PLC acknowledgments), the torque limit will be
reduced to zero. If the pulses are reactivated during this phase, torque is no longer built up. Once the deselection
has been completed, you can continue traversing as normally.
Basic Functions
323
Function Manual, 09/2011, 6FC5397-0BP40-2BA0