Siemens SINUMERIK 840D sl Operating Manual page 403

Parameter Description
Insertion The following insertion modes can be selected:
● Predrilled: (only for G code)
● Perpendicular:
● Helical: Insertion on helical path (only for G code)
● Oscillating: Insert with oscillation along center axis of longitudinal slot
FZ Depth infeed rate – (only for vertical insertion)
(only for G code)
FZ Depth infeed rate – (only for vertical insertion)
(only for ShopMill)
EP Maximum pitch of helix – (for helical insertion only)
(only for G code)
ER Radius of helix – (for helical insertion only)
(only for G code)
The radius cannot be any larger than the cutter radius; otherwise, material will remain.
EW Maximum insertion angle - (only for insertion with oscillation)
FS Chamfer width for chamfering (inc) - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
Hidden parameters
The following parameters are hidden. They are preassigned fixed values or values that can
be adjusted using setting data.
Parameter Description
PL (only for G code) Machining plane
SC (only for G Safety clearance
code)
Reference point Position of the reference point: Center
Milling
Operating Manual, 05/2017, A5E40868956
Approach reference point shifted by the amount of the safety clearance with G0.
ShopMill: Depending on the effective milling tool width (milling tool diameter x
DXY[%]) or DXY [mm] – at the pocket center or at the pocket edge, is moved to the
infeed depth.
– At the edge of the longitudinal slot ("inside left"): Effective milling tool width >=
half the slot width.
– At the longitudinal slot center: Effective milling tool width < half the slot width.
G code: The tool is inserted to the infeed depth at the reference point "inside left"
Note: This setting can be used only if the cutter can cut across center.
The cutter center point traverses along the helical path determined by the radius and
depth per revolution (helical path). If the depth for one infeed has been reached, a
full longitudinal slot is machined to eliminate the inclined insertion path.
The cutter center point oscillates along a linear path until it reaches the depth infeed.
When the depth has been reached, the path is traversed again without depth infeed
in order to remove the slope caused by insertion.
Programming technological functions (cycles)
Value
Defined in MD
52005
1 mm
10.2 Milling
*
mm/min
mm/tooth
mm/rev
mm
Degrees
mm
mm
Can be set in SD
x
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