Replacing The Home Position Sensor; X-Axis; Y-Axis - JUKI KE-3010 Maintenance Manual

1-4. Replacing the Home Position Sensor

1-4-1. X-Axis

The X-axis home position sensor is not provided on the KE-3010/3020V/3020VR. It is built in the
magnescale.

1-4-2. Y-Axis

<M and L board specifications>
The Y-axis home position sensor is not provided on the KE-3010/3020V/3020VR. It is built in the
magnescale.
After replaced, perform the steps stated in sections 3-5, Y Set up and 3-6, Adjust Square, in the
MS Parameter.
<XL board specifications>
The Y-axis home position sensor is an important device that determines the squareness between
the X-axis and Y-axis. If the position of the Y-axis home position sensor is not adjusted correctly
after it has been replaced, the squareness between the X-axis and Y-axis may deviate, causing
the mounting accuracy to lower.
1) After the sensor has been replaced, start up
the machine, cancel "Home Position Return",
and press the emergency stop button.
After replacement, move the X-axis to the front
side and check that the distance between the
Y-axis home position sensor and the magnetic
switch is 1.0±0.2mm. If this is not satisfied,
loosen the sensor fixing screw and vertically
move the sensor to adjust the distance
1.0±0.2mm.
2) Manually move the head from the front side
toward the far side, and stop it at a position
where the Y-axis home position sensor, which
has not been replaced, is turned ON.
3) Move the newly mounted Y-axis home position sensor from the far side toward the front side
and secure it temporarily at a position where the sensor is turned ON.
4) Perform the steps stated in section 3-6, Adjust Square, in the MS Parameter.
[After each home position sensor has been replaced, perform the steps stated in section 4-1,
Rough Adjustment of Origin, in the MS Parameter.]
Maintenance Guide
1-29
YL side
Figure 1-4-2-1 XL Specifications
Rev. 2.0
YR side