Lenze EVS93xx FlyingSaw - Manual (Page 123)

FlyingSaw
Appendix
 Prepared Solution Servo PLC / ECSxA 1.1 EN 11-1
11 Appendix
11.1 Possible error sources
11.1.1 Slip at the measuring wheel or at the material infeed
A very probable cause is that the material infeed and the measuring wheel are not correctly
positioned in relation to each other and "slip" occurs at this point resulting in the incorrect
indication of the material speed to the controller. Slip can be recognised by the set lengths not
passing through correctly and the saw carriage not moving in "synchronism" with the material.
11.1.2 Interference on the master encoder signal
Electromagnetic interference coupled onto the encoder cable can also affect the cutting
accuracy.
11.1.3 Incorrectly set synchronisation ratio / normalisation factor
An incorrectly set synchronisation ratio (normalisation factor) can cause significant cutting
tolerances that will become particularly large when the line speed is changed. To rectify the
problem the normalisation factor should be checked again.
TIP!
During use measuring wheels are subject to wear resulting in a reduction in their
circumference. You can correct for this wear using the code C3005/000