Siemens SINUMERIK 840D sl Function Manual page 1487

Signal
AxisNo
Pos
FRate
InPos
Error
State
FRate
The feed rate in FC 18 can also be specified as:
1. Cutting rate with unit m/min or feet/min
2. Constant grinding wheel surface speed in m/s or feet/s
These alternative velocity settings can be used only if this function is activated by the NC
program. Checkback signals for successful activation can be found in byte 84 on the axis
interface.
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Typ Type Range of values
e
I INT 1 - 31
I REAL ∓ 0,1469368 I -38
to
∓ 0,1701412 I +39
I REAL ∓ 0,1469368 I -38
to
∓ 0,1701412 I +39
BOOL
Q
A BOOL
BYTE 0 to 255
Q
2.12 Block descriptions
Remark
No. of axis/spindle to be traversed
Rotary axis: Degrees
Indexing axis: Indexing position
Linear axis: mm or inches
Rotary axis and spindle: rev/min
See under table containing info about FRate
1 = Position reached,
or function executed
1 = error
Error code
Detailed description
213