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Siemens SINUMERIK 828D Function Manual

Siemens SINUMERIK 828D
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V1: Feedrates
17.2 Path feedrate F
Basic Functions
1368 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
17.2.2 Type of feedrate G93, G94, G95
Effectivity
The feedrate types G93, G94, G95 are active for the G functions of group 1 (except G0) in the automatic modes.
G94 or G95 can be used for traversing in JOG mode.
References:
Function Manual, Extension Functions; Jog With/Without Handwheel (H1)
Inverse-time feedrate (G93)
The inverse-time feedrate is used when it is easier to program the duration, rather than the feedrate, for retraction
of a block.
The inverse-time feedrate is calculated from the following formula:
Programming example:
Linear feedrate (G94)
The linear feedrate is programmed in the following units relative to a linear or rotary axis:
[mm/min, degrees/min] on standard metric systems
[inch/min, degrees/min] on standard imperial systems
Revolutional feedrate (G95)
The revolutional feedrate is programmed in the following units relative to a master spindle:
[mm/rev] on standard metric systems
[inch/rev] on standard imperial systems
[degrees/rev] on a rotary axis
Where F: Inverse-time feedrate in rpm
v: Required path velocity in mm/min or inch/min
s: Path length in mm/inch
Program code Comment
N10 G1 G93 X100 Y200 F2 ; The programmed path is traversed in 0.5 min.
...
Note
G93 may not be used when G41/G42 is active. If the block length varies greatly from block
to block, a new F value should be programmed in each block for G93.
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Siemens SINUMERIK 828D Specifications

General IconGeneral
Control TypeCNC
Operating SystemWindows Embedded
ProcessorIntel Atom
Display10.4" color TFT display
InterfacesEthernet, USB
ProgrammingShopMill, ShopTurn
Operation Panel Size10.4"
Protection ClassIP65
PLC Memory2 MB
Spindle Capacity4 spindles
Hard DriveCompactFlash

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