MVR-Ex feed axis origin reset procedure

If the origin disappears due to battery replacement, or if the feed axis coupling slips and the origin shifts due to a collision, etc., it is necessary to reestablish the origin.

For the W axis, please contact us as it is necessary to adjust the W axis and the V axis.

How to reset the origin of the XYZ axes

(1) Move the axis you want to reset (for example, Z axis) about 200 mm in the minus direction from the origin position.

(2) Select “MDI” mode. Press the function key "OFS / SET" and select "Settings". Change "Write Parameter" from 0 to 1.
The message that the SW0100 parameter can be written is displayed. Click the “RESET” button to delete it.

(3) Press the function key "SYSTEM" and select "Parameter".
Enter "1815" to execute "No. Search".

(4) Parameter 1815.4 (APZ of the 4th bit) Change the target axis from 1 to 0. This means that the origin has disappeared.
A message will appear asking you to turn off the power. Turn off the power in the order of "emergency stop", "power off", and "main breaker".

(5) Turn on the power. The message that the origin has not been established (or the origin return request) appears.

(6) Select the "NC mode homing" mode and select the target axis with the manual feed dial.

(7) Press the manual feed + button. When the machine moves to + and the origin is established, it stops.

Due to the disappearance of the origin, the fast forward override can only be increased to 25% even if 25% or more is selected.
Also, from a position close to the origin, the speed is fixed at a slow speed and fast forward override does not work. If there is something wrong, stop it with an emergency stop.

(8) Check the origin position.

spindle is 100 mm at the origin of the X axis.
The center of the Y-axis is the center of the stroke (origin + stroke / 2), and the center of the spindle
For the Z axis, the distance between the lower end of the saddle and the spindle

If so, the origin can be reestablished.
The allowable value is within 0.5 mm, but please contact us if the amount of deviation is large.

accomplished.