Lead/Delay Times (Dynamic Cam) - Siemens SINUMERIK 840D sl Function Manual

Software cams, position switching signals (N3)
9.2 Cam signals and cam positions
9.2.4

Lead/delay times (dynamic cam)

Times
To compensate for any delays, it is possible to assign two lead or delay times with additive
action to each minus and plus cam for the cam signal output.
The two lead or delay times are entered in a machine data and a setting data.
Note
The input of negative time values causes a delay in the output of cam signals.
Input in machine data
The first lead or delay time is entered in the following general machine data:
MD10460 SW_CAM_MINUS_LEAD_TIME[n]
(lead or delay time on minus cams)
MD10461 SW_CAM_PLUS_LEAD_TIME[n]
(lead or delay time on plus cams)
The following can be entered in these machine data, for example:
● Constant internal delay times between actual-value sensing and cam signal output (e.g.
● Constant external delay times
Input in setting data
The second lead or delay time is entered in the following general setting data:
SD41520 SW_CAM_MINUS_TIME_TAB_1[n]
SD41521 SW_CAM_PLUS_TIME_TAB_1[n]
SD41522 SW_CAM_MINUS_TIME_TAB_2[n]
SD41523 SW_CAM_PLUS_TIME_TAB_2[n]
SD41524 SW_CAM_MINUS_TIME_TAB_3[n]
SD41525 SW_CAM_PLUS_TIME_TAB_3[n]
SD41526 SW_CAM_MINUS_TIME_TAB_4[n]
SD41527 SW_CAM_PLUS_TIME_TAB_4[n]
Delay times which may change during machining must, for example, be entered in these
setting data.
696
as determined by an oscilloscope)
Lead or delay time on minus cams 1 - 8
Lead or delay time on plus cams 1 - 8
Lead or delay time on minus cams 9 - 16
Lead or delay time on plus cams 9 - 16
Lead or delay time on minus cams 17 - 24
Lead or delay time on plus cams 17 - 24
Lead or delay time on minus cams 25 - 32
Lead or delay time on plus cams 25 - 32
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions