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FX-3R Maintenance Guide 1-6 1-2-2. Replacing the Y + Limit Sensor and YB-Near Sensor (1) When the distance between each rubber stopper and the Y linear base becomes 5 mm, make the adjustment so that each limit sensor is …
FX-3R Maintenance Guide
1-5
1-2. Replacing the Limit Sensor and Origin Near Sensor
(1) When replacing only the sensor, it is not necessary to adjust the position.
(2) When replacing the sensor together with the bracket, it is necessary to adjust the position.
∗ The home position of the X-axis is the Z-phase of the magnescale. Therefore, there is no home
position sensor for the X-axis.
1-2-1. Replacing the X+/− Limit Sensor and X-Near Sensor
X NEAR SENSOR X +LIMIT SENSOR
(X -LIMIT SENSOR is located on
the right of the X-axis.)
Figure 1-2-1-1 Adjusting the Sensors on the X-Axis
(1) When the distance between each rubber stopper and the XM base A (or B) becomes 5 mm,
make the adjustment so that each limit sensor is turned ON, and then secure each limit sensor
with the screws.
Rev. 1.00
FX-3R Maintenance Guide
1-6
1-2-2. Replacing the Y +Limit Sensor and YB-Near Sensor
(1) When the distance between each rubber stopper and the Y linear base becomes 5 mm, make
the adjustment so that each limit sensor is turned ON, and then secure each limit sensor with
the screws.
YB NEAR SENSOR
Y LINEAR BASE
Y +LIMIT SENSOR
(Since two X-beams are provided on
the Y-axis, Y +LIMIT SENSOR is
mounted at two locations.)
RUBBER STOPPER
Figure 1-2-2-1 Replacing the Y +Limit Sensor and YB-Near Sensor
Rev. 1.00
FX-3R Maintenance Guide
1-7
Rev. 1.00
1-2-3. Replacing the X-axis Interference Sensor (Y-C Sensor)
(1) When the distance between each rubber stopper and the Y linear base becomes 5 mm, make
the adjustment so that each limit sensor is turned ON, and then secure each limit sensor with
the screws.
Figure 1-2-3-1 Replacing the X-axis Interference Sensor (Y-C Sensor)
Interference Sensor (Y-C Sensor)
Y-limit bracket YY
Y-limit dog
Y-linear base
Y-linear base
Clearance: 0.8 to 1.5
(Target value: 1.0 mm)
Figure when viewed
from opposite side
Y-linear base
Rubber stopper
Switch is turned
ON at a distance
of 5 mm.