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Installation manual
CNC 8055
CNC 8055i
6.
MACHINE PARAMETERS
SOFT: V02.2X
Drive parameters
6.6.1 Friction compensation
From version V3.14 on, the drive offers parameters TP10, TP11, TP12, TP13, TP14 and TV4 for
friction compensation. Refer to the drive manual.
It also has 2 more general purpose variables: XV10 and XV11 (ID SERCOS 34800 and 34801).
These variables may be accessed from the CNC via Sercos.
The following example shows how to use variable XV10 to monitor or show on the oscilloscope the
X axis following error using WinDDS.
Sample
The following example shows how to use variable XV10 to monitor or show on the oscilloscope the X axis
following error using WinDDS.
Assign the value of PLC register R800 to the "ID SERCOS 34800" of the drive that occupies the "Sercos
1" address.
Set PLC parameter SWR800 = 1.34800"
The PLC program must set register R800 to the value of the X axis following error (FLWEX variable). A periodic
module should be used to refresh that value at every position loop. (Note: In order for the Sercos variable
to be actually updated, the NWR instruction must be written in the periodic module).
PE 4
()= CNCRD (FLWEX, R800, M1)
MWR
END
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