KE-2050/KE-2060, KE-2050R/2055R/KE-2060R Maintenance Manual
1-18
1-6. Replacing the Home Position Sensor
1-6-1. X-Axis
The X-axis home position sensor is not provided on the KE-2050/60 and 2050/60 R-series. It is built
in the magnescale.
1-6-2. Y-Axis
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.
Rev. 2.00
(1) After the sensor has been replaced, start up
the machine, cancel the “home position
return” operation, and press the emergency
button. 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 between 0.8 mm and 1.5 mm. If
this is not satisfied, loosen the sensor fixing
screw and vertically move the sensor to
adjust the distance between 0.8 mm and 1.5
mm (target: 1.0 mm).
(2) Manually move the head from the far side
toward the front 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 front side toward the far side
and secure it temporarily at a position where the sensor is turned ON.
(4) Select the MS parameter mode.
(5) Press the F9 key to display the control menu and select [Y Setup].
The machine performs the home position return only with the left Y-axis home position sensor.
(6) Manually move the head from the far side toward the front side with inching operation (jog
movement at a low speed) in the teaching mode, and stop it at a position where the Y-axis
home position sensor, which has not been replaced, is turned ON.
(7) Move the newly mounted Y-axis home position sensor from the front side toward the far side
and secure it temporarily at a position where the sensor is turned ON.
(8) Manually move the head from the far side toward the front side with inching operation (which
moves the head step be step) in the teaching mode to check that the newly mounted sensor is
turned ON within
±
3 steps from the position where the Y-axis home position sensor, which has
not been replaced, is turned ON.
If the newly mounted sensor is not turned ON within
±
3 steps, readjust the position of the
newly mounted sensor and repeat the adjustment from step (6).
(9) Press the emergency button again to cancel the emergency state and conduct the home
position return operation.
