Parameters Setup Procedure - Nl Error - Easson ES-12 Operation Manuals

NL ERROR menu is designed to allow user to enter the Non Linear Error Compensation value into the DRO, so that
the DRO can compensate virtually all type of error in the machine. With DRO's non linear error compensation
function, as long as the position repeatability of the machine is good, it can greatly improve the machine
accuracy. This feature is very useful in the application which demand very high machine accuracy. Such as
Grinder application, Borer application amd etc..
Principle of Operation.
Non Linear Error Compensation make use of the REF ( reference mark ) position of the linear scale to provide a fixed
position as absolute zero of the machine. The DRO's CPU then compensat the readout readings according to the
error table that built during this SETUP process. The compensation always started at the error curve start position as per
the digram below. It is vital important to have the CP-START. position located at the most negative position of the machine,
so that most of the machine travel range are covered by the non-linear error compensation. This DRO software offer
non-linear error compensation in both X and Y axes, Maximum of 62 compensation steps is possible for each axis.
Please notice that, after the non-linear compensation is in active, the linear compensation is not active any more.
error curve
start position
Error
( must be locate
at the most
negative position
of the machine )
Operation Procedure
1) Locate the REF zeto at ABS coordinate :
56.785
X
12.345
Y
0.000
Z
SDM 5
X 86.650
Y 52.450
0.000
Z
ABS

Parameters Setup Procedure - NL ERROR

2
5
1 6
3
4
CP. START
swap the readout display
to ABS coordinate
mm
mm
mm
Enter into ref function
mm
mm
mm
CP. STEP=10
CP. PITCH
10
error curve
9
7 Position
(+Direction)
8
REF mark
abs
inc
ref
select the FIND REF ( find ref mark )
- B. 13 -
CP. START : Compensation
Profile Start
CP. PITCH : Compensation
Profile Pitch
CP. STEP : Compensation
Profile Step
86.650
X
mm
52.450
Y
mm
0.000
Z
mm
ABS
X
mm
Y
mm
Z
mm
ABS RECALL 0
X
mm
Y
mm
Z
mm
ABS FIND REF