Programming and Operating Manual (Milling) 
184  6FC5398-4DP10-0BA1, 01/2014 
N50 CYCLE77 (10, 0, 3, -20, , 50, 60, 70, 10, 0, 0, 800, 
; Call finishing cycle  
 
Long holes located on a circle - LONGHOLE 
Programming 
LONGHOLE (RTP, RFP, SDIS, DP, DPR, NUM, LENG, CPA, CPO, RAD, STA1, INDA, FFD, FFP1, MID)  
Retraction plane (absolute) 
Reference plane (absolute) 
SDIS  REAL  Safety clearance (enter without sign) 
DPR  REAL  Slot depth relative to the reference plane (enter without sign) 
LENG  REAL  Slot length (enter without sign) 
Center point of circle (absolute), first axis of the plane 
CPO  REAL  Center point of circle (absolute), second axis of the plane 
Radius of the circle (enter without sign) 
Feedrate for depth infeed 
Feedrate for surface machining 
Maximum infeed depth for one infeed (enter without sign) 
 
The cycle requires a milling cutter with an "end tooth cutting across center" (DIN844). 
Use this cycle to machine long holes located on a circle. The longitudinal axis of the long holes is aligned radially. 
In contrast to the slot, the width of the long hole is determined by the tool diameter. 
Internally in the cycle, an optimum traversing path of the tool is determined, ruling out unnecessary idle passes. If several 
depth infeeds are required to machine a slot, the infeed is carried out alternately at the end points. The path to be traversed 
along the longitudinal axis of the long hole changes its direction after each infeed. The cycle searches for the shortest path 
when changing to the next long hole.