Signals From Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

NC/PLC interface signals (Z2)
19.4 Manual and handwheel travel
19.4.6

Signals from axis/spindle (DB31, ...)

Overview of signals from axis/spindle
DB31, ...
DBB Bit 7
64 Travel command
plus
65
75
Description of signals from axis/spindle
DB31, ...
DBX62.1 Handwheel override active
Edge evaluation: no
Signal state 1 or The function "Handwheel override in AUTOMATIC mode" is active for the programmed positioning
edge change 0 → 1 axis (FDA[AXi]). Handwheel pulses for this axis affect the programmed axis feedrate either as path
definition (FDA=0) or as velocity override (FDA > 0).
The interface signal will also be set if "Handwheel override in automatic mode" is active with a
concurrent positioning axis (with FC15).
Signal state 0 or The function "Handwheel override in AUTOMATIC mode" is not active for the programmed
edge change 1 → 0 positioning axis (or concurrent positioning axis).
An active handwheel override is not active if:
•
•
•
DB31, ...
DBB64
Bit 0-2 Handwheel active (1 to 3)
Edge evaluation: no
Signal state 1 or These PLC interface signals provide feedback whether the machine axis is assigned to handwheel
edge change 0 → 1 1, 2, 3 or no handwheel.
Only one handwheel can be assigned to an axis at any one time.
If several interface signals:
DB31, ... DBX4.0 bis DBX4.2 (Activate handwheel)
are set, priority "Handwheel 1" before "Handwheel 2" before "Handwheel 3" applies.
If the assignment is active, the machine axis can be traversed with the handwheel in JOG mode or
a DRF offset can be generated in AUTOMATIC or MDA mode.
Signal state 0 or Neither handwheel 1, 2 nor 3 is assigned to this geometry axis.
edge change 1 → 0
1044
Bit 6 Bit 5
Travel request
minus plus
continuous- Variable
ly
INC
JOG - Approaching fixed point reached
Signal(s) updated: Cyclically
the positioning axis has reached the target position
the distance-to-go is deleted by axis-specific interface signal
DB31, ... DBX2.2 (delete distance-to-go).
a RESET is performed.
Signal(s) updated: Cyclically
Signals from axis/spindle
Bit 4 Bit 3
minus
Active machine function
10000 1000
INC INC
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Bit 2 Bit 1
Handwheel active
3 2
100 10
INC INC
JOG - Approaching fixed point active
Extended Functions
Bit 0
1
1
INC