KE-2050/KE-2060, KE-2050R/2055R/KE-2060R Maintenance Manual
1-14
1-4-2. Clearance of the Magnescale
c
Open the cover of the magnescale interpolator (part No. 40003268).
d
For each axis, connect the GND terminal of the oscilloscope to "0VA" and measure the
voltage waveform at the "SIN" terminal. For X, gradually move the head from the negative
limit sensor to the positive limit sensor. For YL or YR, gradually move the X-axis from the
negative limit sensor to the positive limit sensor. At this time, observe the sine waveform
shown on the oscilloscope to check that the P-P value is 1.5V or more in the entire area.
e
If the P-P value is under 1.5V, loosen the screw fixing the sensor (screw
c
for X-axis and
screw
e
for Y-axis shown in the following Fig.).
f
Put the MSC clearance jig (part No. 40008106) with a thickness of 0.35 mm in the clearance
between the magnescale and sensor head, and then tighten the screw again.
g
Check that the MSC clearance jig (part No. 40008106) with a thickness of 0.25 mm is put
smoothly in the clearance between the magnescale and sensor head in the XY-axes
full-stroke and that the clearance jig with a thickness of 0.45 mm cannot be put in the
clearance.
h
Carry out the check stated in
d
above.
Note)
Detach or attach the cover and probe with the power turned OFF.
Rev. 2.00
YR
YL
X
0VA
SIN
Screw
d
Screw
e
Sensor head
Magnescale
Sensor head
Screw
c
Magnescale
X-axis
Y-axis
Clearance between the magnescale and sensor head: 0.35 ± 0.1 mm
