Function block library
7-72
SHB9300CRV EN 2.0
Single X position setting
if a phase offset can be excluded, a X position must only be set once.
Therefore the master drive (machine) must be set to the posiiton applied to the input
CDATA-TP-POS.
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CDATA-X-TP/E5 = LOW
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Acceptance of the X position by a L -> H transition at CDATA-X-TP
7.6.16.6 Additional functions
Stretching / compression / offset in X direction
This function is only available for the internal X integrator (C1332 = 0).
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Stretching/compression
+100% at CDATA-XFACT do not result in stretching/compression
-100% at CDATA-XFACT do not result in a stretching/compression but a direction reversal for the
X position. The profile will then be processed “from the end”.
The following description is valid for CDATA-XFACT > 0:
CDATA-XFACT > 100% - no compression.
CDATA-XFACT < 100% - no stretching.
If stretching/compression is not wanted: connect CDATA-XFACT to FIXED100%.
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Offset function
It is possible to move the X position by a constant value via input -XOFFS.
Stop!
The drive follows this change at max. permissible torque.
Note!
XOFFS should be changed during standstill if possible, otherwise use a ramp function generator
(e.g. RFGPH).
Synchronized stretching/compression during drive motion
In most applications, master and cam drive must run absolutely synchronously. Therefore, the
adjustment of thestretching orthe compressionfactor during operation must also be synchronized.
This function should be used if more than 8 profiles are required to change the cam drive travel. The
travel can be changed on-line through stretching and compression.
This function is only valid for the cam drive not for the master value.
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