Siemens SINUMERIK 840D sl Turning Operating Manual

Also see for SINUMERIK 840D sl: Manual Function manual Function manual Function manual Function manual

6.8 Controlling the program run6.8.1 Program controlYou can change the program sequence in the "AUTO" and "MDA" modes.Abbreviation/program con‐trolMode of operationPRTNo axis motionThe program is started and executed with auxiliary function outputs and dwell times. In thismode, the axes are not traversed.The programmed axis positions and the auxiliary function outputs are controlled this way.Note:You can activate program execution without any axis motion using the "Dry run feedrate".DRYDry run feedrateThe traversing velocities programmed in conjunction with G1, G2, G3, CIP and CT are replacedby a defined dry run feedrate. The dry run feedrate also applies instead of the programmedrevolutional feedrate.Notice:Do not machine any workpieces when "Dry run feedrate" is active because the altered feedratesmight cause the permissible tool cutting rates to be exceeded and the workpiece or machine toolcould be damaged.RG0Reduced rapid traverseIn the rapid traverse mode, the traversing speed of the axes is reduced to the percentage valueentered in RG0.Note:You define the reduced rapid traverse in the settings for automatic operation.M01Programmed stop 1The processing of the program stops at every block in which supplementary function M01 isprogrammed. In this way you can check the already obtained result during the processing of aworkpiece.Note:In order to continue executing the program, press the key again.Programmed stop 2(e.g. M101)The processing of the program stops at every block in which the "Cycle end" is programmed(e.g. with M101).Note:In order to continue executing the program, press the key again.Note: The display can be changed. Please observe the information provided by the machinemanufacturer.DRFHandwheel offsetEnables an additional incremental work offset while processing in automatic mode with anelectronic handwheel.This function can be used to compensate for tool wear within a programmed block.Note:You require the "Extended operator functions" option to use the handwheel offset (for 828D).SB Individual blocks are configured as follows.● Single block, coarse: The program stops only after blocks which perform a machine function.● Data block: The program stops after each block.● Single block, fine: The program also stops only after blocks which perform a machinefunction in cycles.Select the desired setting using the / 942

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