Travel Request - Siemens SINUMERIK 840D Function Manual

H1: Manual traversing
17.6 Manual traversing using a handwheel
17.6.3

Travel request

The following examples are intended to illustrate the method of operation of the "Travel
request" NC/PLC interface signal.
Example 1: Manual traversing using handwheel with distance input, the stop condition is no criterion for
cancellation
If, for manual traversing using a handwheel with distance input
(MD11346 $MN_HANDWH_TRUE_DISTANCE == 1 or == 3), an active stop condition is not a
criterion for cancellation (see MD32084 $MA_HANDWH_STOP_COND or
MD20624 $MC_HANDWH_CHAN_STOP_COND); then, the output of NC/PLC interface
signals "Travel request" and "Travel command" corresponds to the behavior shown in the
following diagrams.
Figure 17-1
664
Signal-time diagram:Manual traversing using the handwheel with distance input, stop
condition is not a cancellation criterionMD17900 $MN_VDI_FUNCTION_MASK bit 0 = 0
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA