P4: PLC for SINUMERIK 828D
14.6 Function interface
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1185
14.6.4.9 Positioning axis metric with handwheel override
① First function activation using positive edge of
Start
.
②
Positioning axis active
= 1 shows that the function is active and that the output signals are valid,
Position reached
and
Axis stationary
are possibly withdrawn.
③ Positive acknowledgement
Position reached
= 1 and
Positioning axis active
= 1
④ Reset of function activation after receipt of acknowledgment
⑤ Signal change via function
⑥ Positioning is interrupted by delete distance to go, signal duration min. 1 PLC cycle.
⑦ The signals
Position reached
and
Error
are reset, the
Error number
can be read (in this case,
30).
DB380x PLC → NCK control signals
Valid
values
Remark
DBX3002.0 Incremental 0|1 Only one of the bits must be set, if all bits are 0, then this
means absolute positioning.
DBX3002.1 Shortest distance 0|1
DBX3002.5 Direction of rotation as for M4 0
DBX3003.0 Absolute, negative direction 0|1
DBX3003.1 Absolute, positive direction 0|1
DBD3002.2 Traversing dimension inch 0 Traversing dimension, metric
DBD3002.3 Handwheel override 1 Override ON
DBD3004 Setpoint position/setpoint distance REAL for "incremental": Setpoint distance
DBD3008 Feedrate velocity REAL if = 0, the value is taken from machine data
POS_AX_VELO (unit as set in machine data).
(UURU
'HOHWHGLVWDQFHWRJR
6WDUW
3RVLWLRQUHDFKHG
3RVLWLRQLQJD[HVDFWLYH
WR3/&D[LV
IURP3/&D[LV
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