Siemens SINUMERIK Series Function Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

N4: Own channel - only 840D sl9.2 Stroke controlExtended FunctionsFunction Manual, 03/2013, 6FC5397-1BP40-3BA1 559Programming Activation DescriptionG602 Reach the coarse in-position windowThe signal is output once the axes have reached thecoarse in-position window. If this criterion is selectedfor stroke initiation output, then the instant of strokeinitiation can be varied through the size of interpolationwindow (see t' 1).G601 Reach the fine in-position windowIn this case, it can always be ensured that the machinewill have reached a standstill at the instant of punchingprovided that the axis data are set appropriately.However, this variant also results in a maximum deadtime (see t 1 ).NoteThe initial setting of the G group with G601, G602 and G603 (G group 12) is defined viamachine data:MD20150 $MC_GCODE_RESET_VALUES[11]The default setting is G601.G603Depending on velocity and machine dynamics, approximately 3 - 5 interpolation cycles areprocessed at the end of interpolation before the axes reach zero speed.MD26018 $MC_NIBBLE_PRE_START_TIMEIn conjunction with the above machine data, it is possible to delay, and therefore optimize,the instant between reaching the end of interpolation and setting the high-speed output for"Stroke ON".The following setting data is available in addition to MD26018:SD42402 $SC_NIBPUNCH_PRE_START_TIMESD42402 can be changed from the part program and therefore adapted to the punchingprocess depending on the progress of the part program run.The following applies to the delay time:MD26018 = 0 → SD42402 is operativeMD26018 ≠ 0 → MD26018 is operativeIf the "Punching with dwell time, PDELAYON" is active, then the dwell time programmed inconnection with this function is active. Neither MD26018 nor SD42402 is operative in thiscase.