Drill Pattern Cycles; Preconditions - Siemens SINUMERIK 840D Programming Manual

Drilling Cycles and Drilling Patterns
2

2.3 Drill pattern cycles

2.3 Drill pattern cycles
The drilling pattern cycles only describe the geometry of
an arrangement of holes on a plane. The link to a
drilling cycle is established via the modal call (see
Section 2.2) of this drilling cycle before the drilling
pattern cycle is programmed.

2.3.1 Preconditions

Drilling pattern cycles without drilling cycle call
Drilling pattern cycles can also be used for other
applications without the drilling cycle first being called
modally because the drilling pattern cycles can be
parameterized without reference to the drilling cycle
used.
If there was no modal call of the subroutine prior to
calling the drilling pattern cycle, error message 62100
"No drilling cycle active" appears.
You can acknowledge this error message with the error
acknowledgment key and continue program processing
by pressing the NC Start key. The drilling pattern cycle
then approaches each of the positions calculated from
the input data one after the other without calling a
subroutine at these points.
Behavior when quantity parameter is zero
The number of holes in a drilling pattern must be
parameterized. If the value of the quantity parameter
is zero when the cycle is called (or if this parameter
is omitted from the parameter list), alarm 61103
"Number of holes is zero" is output and the cycle is
aborted.
Checks in the case of limited ranges of input
parameter values
Generally there are no plausibility checks for defining
parameters in the drilling pattern cycles if they are
not expressly declared for a parameter with a
description of the response.
2-92
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
03.96
2
 Siemens AG 2000 All rights reserved.