Yaskawa YASNAC PC NC Programming Manual - Manual (Page 159)

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YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
• Addresses P, Q, I, J, and K are modal in the canned cycle mode and, once specified,
they remain valid until the canned cycle is canceled. For these addresses, values
should be specified without sign.
• It is possible to specify a variable peck feed stroke by using address Q instead of
address I. If addresses I, J, K, or Q are specified in the same block, variable pitch peck
feed is executed with the value specified for address Q as the initial value of peck feed
stroke. Since Q is modal, specify Q0 if a Q command is given before specifying a
variable pitch with I, J, or K.
• If neither Q, I, J, or K is specified in the G73 or G83 block., alarm “0174” occurs.
• If “J=0” is specified or no J command is specified in the G73 or G83 block, peck feed
(intermittent feed) cycle with constant pitch is called up.
FIGURE 4.1.1.5 Peck Feed Cycle in the G73 and G83 Modes