Dogless-Type Marked Point Alignment Method - Mitsubishi Electric MELDAS C6 Instruction Manual

5.2.3 Dogless-type Marked Point Alignment Method

The absolute position origin point is determined by
setting the axis to the marked point within the
machine's moveable range.
(1) Initialization
Set the direction from the marked point to the grid to be used as the electrical zero point in
parameter #120 ABS Type (Absolute position detection) parameter bit3.
1. Select the Auxiliary axis monitor screen.
2. Press the page key to select the axis to be set
3. Press
4. Press
5. Press
6. Press
7. Move the axis to set the marked point.
8. After initializing, turn on the power again to run
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5. Zero Point Initialization for Auxiliary Axis
5.2 Absolute Position Detection for Auxiliary Axis
Operation procedure
and set the axis name.
to turn ON the "Ope test mode"
J
signal.
Z .
. When the "Ope test mode" is
M
INCREMENTAL or HANDLE, move the cursor to
"Scale" and set the feedrate per pulse.
.
P
(Press or to start.)
Using jog, handle or incremental feed, set
(1)
the axis position to the position to become
the "absolute position origin point".
Turn the zero point setting (ZST) signal ON.
(2)
Using jog, handle or incremental feed,
(3)
move the axis in the direction of the grid to
be the electrical zero point. When the axis
reaches the grid to be the electrical zero
point, it will automatically stop, and the
absolute position coordinates will be
established.
If parameter #101 Cont1 bit A is set to "1", the electrical zero point (grid) will be set
as the "absolute position origin point" instead of the position where zero point
setting was turned ON.
In this state, the absolute position origin point will become the coordinate zero point. To
(4)
set a point other than the position where zero point setting (ZST) was turned ON or the
electrical zero point as the absolute position coordinate zero point, move the machine
coordinate zero point with parameter #116 ABS Base (Absolute position zero point).
the normal operation.
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Electrical zero point when
ABS Type bit3 = 1
− direction
If the axis that has not been set is selected, error
will occur.
"Ope test mode" signal can be turned ON only
when the auxiliary axis is stopped and "Ope test
mode valid" signal from PLC is turned ON.
The absolute position initializing state is on.
Operation mode can be selected from the followings:
JOG, INCREMENTAL, HANDLE
Speed and torque limit value can be designated.
Axis movement
Setting distance
in #116 ABS Base
#101 Cont1 bit A = 1
#101 Cont1 bit A = 0
∆ ∆
Machine coordinate
zero point
III - 33
Marked point
Electrical zero
point when bit3 = 0
+ direction
State
Marked point
(1)
(3)
∆ ∆
Electrical
Grid
zero point