Siemens SINUMERIK Series Function Manual

H1: Manual and handwheel travel
3.5 Handwheel override in automatic mode
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
175
NC Stop/override = 0
If the feedrate override is set to 0% or an NC Stop is initiated while the handwheel override is
active, the following applies:
● For path definition:
The handwheel pulses arriving in the meantime are summated and stored. If NC Start or
the feedrate override > 0%, the saved handwheel pulses become effective (i.e. are
traversed).
However, if the handwheel is first deactivated [via IS DB21, ... DBX12/16/20.0-2
(geometry axes 1/2/3: Activate handwheel (1, 2, 3))] then the stored handwheel pulses
are deleted.
● For velocity specification:
The handwheel pulses arriving in the meantime are not summated and are not active.
3.5.2 Programming and activating handwheel override
General information
When the handwheel override is programmed with NC language elements FD (for path axes)
and
FDA (for positioning axes), the following points must be observed:
●
FDA and FD function non-modally.
Exception for positioning axes: If traverse instruction
POSA is programmed, the handwheel
override can also act modally because this positioning axis does not affect the block
transition.
● When the handwheel override is activated with
FDA or FD, a target position must be
programmed in the NC block for the positioning axis or for a path axis. When the
programmed target position is reached, the handwheel override becomes inactive again.
● It is not possible to program
FDA and FD or FA and F in the same NC block.
● The positioning axis must not be an indexing axis.
Positioning axis
Syntax for handwheel override:
FDA[AXi] = [feedrate value]
Example 1:
Activate velocity override
N10 POS[U]=10 FDA[U]=100 POSA[V]=20 FDA[V]=150 . . .
POS[U]=10
Target position of positioning axis U
FDA[U]=100
Activate velocity override for positioning axis U; axis velocity of U =
100 mm/min
POSA[V]=20
Target position of positioning axis V (modally)
FDA[V]=150
Activate velocity override for positioning axis V; axis velocity of V =
150 mm/min

Siemens SINUMERIK Series Specifications

General

Axes Control	Up to 31 axes
Category	Control Unit
Manufacturer	Siemens
Series	SINUMERIK
Control Type	CNC
Communication Interfaces	Ethernet, USB
Operating Temperature	0°C to 45°C
Protection Class	IP20
Power Supply	24V DC
Display	Color TFT LCD