Siemens SINUMERIK 840Di Function Manual page 84

Detailed Description
2.1 Motion monitoring functions
Example:
After insertion of the part program blocks N320 and N420 into the part program used in the
examples, the function behaves as follows:
N100
N101
N210
N220
N310
N320
N410
N420
N510
N520
N610
N620
• MD36052 STOP_ON_CLAMPING = 'H03' is no longer operative.
• MD36052 STOP_ON_CLAMPING = 'H04' generates a stop irrespective of M83, which is
2-12
G0 X0 Y0 Z0 A0 G90 G54 F500
G641 ADIS=.1 ADISPOS=5
G1 X10
G1 X5 Y20
G0 Z50
M82
G0 A90
M83
G0 X100
G0 Z2
G1 Z-4
G1 X0 Y-20
The travel command is set in Look Ahead mode only for blocks with active continuous-
path mode. M82 generates a stop and thus interrupts the continuouspath mode. The Look
Ahead stopping on N410 would not be necessary because stopping occurs anyway.
executed as a function of "feedrate override 0%".
The axis is thus stopped before the first machining block.
Note
MD36052 STOP_ON_CLAMPING = 'H01' or 'H04'
Both functions can be used irrespective of the clamping of axes:
• MD36052 STOP_ON_CLAMPING = 'H01'
generates a Look Ahead stop for the path motion if no servo enable signal is active for
the relevant axis.
• MD36052 STOP_ON_CLAMPING = 'H04'
generates a Look Ahead stop for the path motion if the feed rate overrate == 0% at the
transition from the part program blocks with rapid traverse to part program blocks
without rapid traverse.
Both functions ensure that the path motion in continuous path mode is already stopped
before the relevant part program block and not just within the part program block.
; Edit
; Retraction
; No path motion
; Turn rotary table
; No path motion
; Approach
; Edit
Axis Monitoring, Protection Zones (A3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0