Siemens SINUMERIK 840D sl Function Manual page 42

F2: Multi-axis transformations
1.2 5-axis transformation
Alarm 17630 or 17620 is output for G74 and G75 if a transformation is active and the axes are
involved in the transformation. This applies irrespective of orientation programming.
If the start and end vectors are inverse parallel when ORIWKS is active, then no unique plane
is defined for the orientation programming, resulting in the output of alarm 14120.
If a transformation switch (switch 0n, switch Off or change transformation) is undertaken,
alarm 14400 will be generated.
In the reverse situation, i.e. a tool radius offset is selected or deselected when a
transformation is active, no alarm message is output.
Multiple input of tool orientation
According to DIN 66025, only one tool orientation may be programmed in a block, e.g. with
direction vectors:
N50
If tool orientation is entered multiply, i.e. with direction vectors and with Euler angles, error
message 12240 "Channel X block Y tool orientation xx defined more than once" is displayed
and the NC parts program stops.
N60
Tool orientation using orientation vectors
Polynomials can also be programmed for the modification of the orientation vector.
This method produces an extremely smooth change in speed and acceleration at the block
changes for rotary axes when the tool orientation has to be programmed over several blocks.
The interpolation of orientation vectors can be programmed with polynomials up to the 5th
degree. Polynomial interpolation of orientation vectors is described in Chapter "Polynomial
Interpolation of Orientation Vectors".
Note
Further explanations of tool orientation using orientation vectors and their handling in
machines are given in:
References: /FB1/Function Manual Basic Functions; Tool Offset; Orientable Tool Carriers
(W1)
42
A3=1 B3=1 C3=1
A3=1 B3=1 C3=1 A2=0 B2=1 C2=3
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions