Cyclic dwell time with FUNCTION FEED DWELL

Application

FUNCTION FEED DWELL allows you to program a cyclic dwell time in seconds, such as for forcing chip breaking.

Description of function

The FUNCTION FEED DWELL function is not effective with rapid traverse movements and probing motions.

Use FUNCTION FEED DWELL RESET to reset the recurring dwell time.

The control automatically resets the FUNCTION FEED DWELL function at the end of a program.

Program FUNCTION FEED DWELL immediately prior to the operation you wish to run with chip breaking. Reset the dwell time immediately following the machining with chip breaking.

Input

NC programs contained in this User's Manual are suggestions for solutions. The NC programs or individual NC blocks must be adapted before being used on a machine.

Change the following contents as needed:

  • Tools
  • Cutting parameters
  • Feed rates
  • Clearance height or safe position
  • Machine-specific positions (e.g., with M91)
  • Paths of program calls

Some NC programs depend on the machine kinematics. Adapt these NC programs to your machine kinematics before the first test run.

In addition, test the NC programs using the simulation before the actual program run.

 
Tip

With a program test you determine whether the NC program can be used with the available software options, the active machine kinematics and the current machine configuration.

11 FUNCTION FEED DWELL D-TIME0.5 F-TIME5

; Activate cyclic dwell time: Machine for 5 seconds, dwell for 0.5 seconds

To navigate to this function:

Insert NC function Special functions Functions Dwell time FEED/DWELL FUNCTION FEED DWELL

The NC function includes the following syntax elements:

Syntax element

Meaning

FUNCTION FEED DWELL

Syntax initiator for cyclic dwell time

D-TIME or RESET

Define dwell time duration in seconds or reset recurring dwell time

F-TIME

Duration of machining time until the next dwell time in seconds

Only if D-TIME is selected

Notes

 
Notice
Caution: Danger to the tool and workpiece!
When the FUNCTION FEED DWELL function is active, the control will repeatedly interrupt the feed movement. While the feed movement is interrupted, the tool remains at its current position, and the spindle continues to turn. During thread cutting, this behavior will cause the workpiece to become scrap. There is also a risk of tool breakage during execution!
  1. Deactivate the FUNCTION FEED DWELL function before cutting threads
  • You can also reset the dwell time by entering D-TIME 0.