Siemens SINUMERIK 840D sl Function Manual page 310

H1: Manual travel and handwheel travel
4.5 Handwheel override in automatic mode
POS[U]=10
FDA[U]=100
POSA[V]=20
FDA[V]=150
Example 2:
Activate path default and velocity override in the same NC block
N20 POS[U]=100 FDA[U]= 0 POS[V]=200 FDA[V]=150 . . .
POS[U]=100
FDA[U]= 0
POS [V]=200
FDA[V]=150
Path axis
Syntax for handwheel override:
To program "Handwheel override in automatic mode" for path axes, the following
preconditions must have been met:
● Active movement commands from group 1: G01, G02, G03, CIP
● Exact stop active (G60)
● Linear feedrate in mm/min or inch/min active (G94)
These preconditions are checked by the control and an alarm is output if any of them is not
met.
Example 3:
Activate velocity override
N10 G01 X10 Y100 Z200 FD=1500 . . .
X10 Y100 Z200
FD=1500
Concurrent positioning axis
The handwheel override for concurrent positioning axes is activated from the PLC via FC18
by setting the appropriate interface signal
DB31, ... DBX62.1 (handwheel override ON).
310
Target position of positioning axis U
Activate velocity override for positioning axis U; axis velocity of U =
100 mm/min
Target position of positioning axis V (modally)
Activate velocity override for positioning axis V; axis velocity of V =
150 mm/min
Target position of positioning axis U
Activate path default for positioning axis U;
Target position of positioning axis V
Activate velocity override for positioning axis V; axis velocity of V =
150 mm/min
FD = [feedrate value]
Target position of path axes X, Y and Z
Activate velocity override for path axes; path velocity = 1500
mm/min
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions