General Workpiece Data - Cycle420 - Siemens SINUMERIK 802D sl Programming And Operating Manual

4.12 General workpiece data – CYCLE420
Function
Typically, general workpiece data are valid for each workpiece seat. Hence the cycle must
be called at the beginning of a machining program and after each diameter or change to the
tool peripheral speed.
For dressing prior to the n
parameter for each wheel. Dressing is done each time the counter can be divided by the pa-
rameter N_AWST without remainder.
This cycle processes the fine correction parameters for the X and Z axes.
Programming
CYCLE420(X_SOLL, X_AB, Z_AB_L, Z_AB_R, F_DL_AB, F_BL_AB, F_DR_AB, F_BR_AB, F_Z_AB,
FFW, USCH, UWERK, Z_LPOS, Z_SCH, ZSTW, F_Z_MESS, N_ABR, N_AWST)
Parameter
Table 4-10
Parameter
X_SOLL
X_AB
Z_AB_L
Z_AB_R
F_DL_AB
F_BL_AB
F_DR_AB
F_BR_AB
F_Z_AB
FFW
USCH
UWERK
Z_LPOS
Z_SCH
ZSTW
F_Z_MESS
N_ABR
N_AWST
Grinding
Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
workpiece, workpiece counting is performed in the _GC_WPC
th
Parameters of CYCLE420
Data type Meaning
real Maximum workpiece diameter (abs.)
real Dressing amount in X (incr.)
real Dressing amount in Z, left/front (incr.)
real Dressing amount in Z, right/rear (incr.)
real Feedrate in the diameter direction, left
real Path feedrate, left
real Feedrate in the diameter direction, right
real Path feedrate, right
real Dressing feedrate in Z
real Retraction travel (incr.)
real Wheel peripheral speed [m/s]
real Workpiece peripheral speed [m/min]
int Longitudinal position,
0 = no longitudinal positioning
-1 = shoulder left
real Z dimension for shoulder
real Infeed travel for probe (incr.)
real Measuring feedrate
int Number of dressing strokes
int Number of workpieces before dressing
4.12 General workpiece data – CYCLE420
Cycles
4-39