Siemens SINUMERIK 840D sl Function Manual page 310
Extended functions
Hide thumbs
Also See for SINUMERIK 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
Table of Contents
Advertisement
Manual and Handwheel Travel (H1)
4.8 DRF offset
Velocity reduction
The velocity generated by the handwheel for DRF can be reduced as compared to the JOG
velocity via axial machine data
MD32090 $MA_HANDWH_VELO_OVERLAY_FACTOR
(ratio of JOG velocity to handwheel velocity).
DRF active
DRF must be active to allow the DRF offset to be modified by means of traversal with the
handwheel. The following preconditions must be fulfilled:
● AUTOMATIC mode
● DB21, ... DBX0.3 (activate DRF) = 1
The DRF offset can be activated/deactivated for specific channels using the "program
control" function on the HMI user interface.
The HMI software then sets the interface signal:
DB21, ... DBX24.3 (DRF selected) =1
The PLC program (basic PLC program or user program) transfers this interface signal to
interface signal
DB21, ... DBX0.3 (activate DRF) once the corresponding logic operation has been
performed.
Control of DRF offset
The DRF offset can be modified, deleted or read:
User:
Part program:
PLC user program:
HMI user interface:
Note
If DRF offset is deleted, the axis is not traversed!
310
CAUTION
The work offset introduced via the DRF offset is always effective in all modes and after a
RESET. It can, however, be suppressed non-modally in the part program.
•
•
•
•
References:
/PG/ Programming Guide Fundamentals
•
References:
/FB1/ Description of Functions, Basic Machine; Basic PLC Program (P3)
•
Traversing with the handwheel
Reading via axis-specific system variable $AC_DRF[<axis>]
Deleting via parts-program command (DRFOF) for all axes in a channel
Non-modal suppression via parts-program command (SUPA)
Reading the DRF offset (axis-specific)
Display of the DRF offset (axis-specific)
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions
- Quick Links:
- Digital and Analog Nck I/Os (A4)
Hide quick links:
Advertisement
Table of Contents
