Function block library
7-70
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SHB9300CRV EN 2.0
Automatic cam profile processing
The function is selected with CDATA-CYCLE = HIGH.
Code C1311 is used to determine the profile to start with.
Code C1312 is used to determinethe cyclerange (therange islimited by the number of cam profiles
entered in GDC).
Example:
Profiles 2, 3 and 4 are to be processed cyclically:
C1311 = 2 (first cam profile)
C1312 = 2 (range: 2 other cam profiles)
7.6.16.5 Master position processing in CDATA
The X position is selected from the master drive
l
directly (as absolute value) or
l
as digital frequency.
Input CDATA-XIN: direct selection of X position
This input can be used if the synchronisation to the machine measuring system and the phase
synchronous speed selection of the master drive is transmitted from a superimposed PLC to the
controller in increments (1 encoder rev.
65536 inc). In this case, the signal for the X position is
directly assigned to the input CDATA-XIN via one of the available bus systems.
Note!
Use the function block SYNC to synchronize the operation of multi-axis drives which have a
common master value selected via a bus system.
With C1332 = 1 all inputs shown below CDATA-XIN are not effect (see function block figure).
A fault is indicated for negative input values (X<0):
CDATA-X<0 = HIGH.
Furthermore, the output will output a Y value which results from the cam function for X=0.
A fault is indicated for input values X>Xmax:
CDATA-X>Xmax = HIGH.
Furthermore, the output will output the Y value which results from the cam function for X=Xmax.
Note!
The outputs CDATA-X<0 and CDATA-X>Xmax can only be active if being selected with external
master value. An internally conditioned master value (input at DFIN) cannot become negative or
exceed the maximum value.
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