Doosan DVF5000 - Z-Axis Reference Point Resetting (Z-Axis Stroke: 400 Mm)

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7. Adjustment of reference points of respective axes and manual TCP adjustment
7.2 Z-axis reference point resetting (Z-axis Stroke: 400mm)
1) Insert a test
-bar into the spindle, set up a block
gage (around 100mm) so that the
measurement can be made from the bottom,
and set the indicator to
“0.”
2) Move the Z
-axis in the Handle Mode, so that
the end of the Test-Bar touches the indicator to
set it to "0".
3) Calculate the distance from Z0 position by the
following equation.
Test Bar Length
＋
Block Gage Height - 150
▪ For the DVF 5000, when the distance from
the table top to the Spindle Gage Line is
"150mm,” “Z-400.000”
Ex) If the Block Gauge : 100mm, Test bar : 310mm, then : 310 + 100
–
150 = 260
In other words, in this case, the position reached when -260.000 has been
transferred in the Z-axis machine coordinate is -400.000, which is the end of the Z-
axis stroke “- ”
direction. And, for the machine reference point position, the position
reached when 140.00 has been transferred in the + direction is the Z-axis
reference point.
4) Check the machine
’s position on the CRT screen and enter the error amount into the
Parameter No.1850 Z-axis field.
▪ If the Parameter already has a certain number, “+Input” the error amount.
☞ In this case, if the Parameter #1815 “X” or “B” field b4(APZ) changes from “1”

to
“0”, the “PW0000 POWER MUST BE OFF” and “P/S Alarm 300 nAxis Need ZRN
”
alarms will be activated on the screen.
5) Transfer
the Z-axis with the “JOG” or
“
HANDLE
”
feed in the direction of reference point
return to a position near the front of the reference point mark (within 1Grid : within
10mm).
▪ Rapidly move the axis by several Grids or more.
6)
While pressing the
“
JOG+
”
switch of the Z-axis in the
“
R E F. RTN
”
Mode, perform
reference point return in the “+ ” direction. (Keep pressing the
“
JOG+
”
switch until the
reference point return is complete and the axis stops.)
☞ b4(APZ) of the “Z ” field of the parameter #1815 changes from 0”  to “1”
and the
alarm is cleared.
7) By transferring
the Z-axis to the Z-260 position, measure as above, and if the
measurement is within +0.005mm, complete the reference point return.
Test Bar
Block
Gauge
“0” Setting
Table