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2. LINEAR SCALES
2 LINEAR SCALES
Contact the linear scale manufacturer for details of the linear scales such as the specifications,
performance and warranties.
2.1 Compatible linear scale list
Scale Type Manufacturer Model Resolution
Rated Speed
(Note 1)
Effective
Measurement
Length (Maximum)
Communication
System
Absolute
Position
System
AT343A 3000mm
Mitutoyo
AT543A
0.05 m2.0m/s
1500mm
2 wire type
ABS
type
Heidenhain LC491M 0.05
m 2.0m/s 2040mm 4 wire type
SL710
PL101R
MJ830
0.2
m
(Note 2)
6.4m/s 3000mm
Sony
Precision
Technology
SH13
MJ830
0.005
m
(Note 2)
1.4m/s 1240mm
2 wire type
RGH26P 5.0 m4.0m/s
RGH26Q 1.0 m3.2m/s
Mitsubishi serial
interface
compatibility
INC
type
Renishaw
RGH26R 0.5
m1.6m/s
70000mm 2 wire type
A/B/Z phase
differential output
(MR-CLP01 used)
A/B/Z signal
required
(Note 3)
INC
type
Not specified (Note 3)
Scale
dependent
(Note 4)
Scale
dependent
Scale dependent 2 wire type
Note 1. The upper limit value of the linear servo motor speed is the lower value of the maximum speed of the linear servo motor and the
rated speed of the linear scale.
2. Changes depending on the setting of the interpolator (MJ830: Sony Precision Technology make). Set the resolution within the
range of the minimum resolution to 5
m.
3. The phase difference between the A-phase pulse and B-phase pulse must be 500ns or more, and the Z-phase pulse width be
equivalent to one cycle of the A-phase pulse. Also, the Z phase must be synchronized with the A phase/B phase.
4. The permissible resolution range is 0.005 to 5
m. Select the linear scale within this range.
[About handling of the linear scale]
If the linear scale is mounted improperly, for example, an alarm, position shift, etc. may occur.
In such cases, also check the mounting of the linear scale.
General check items of the linear scale
(a) Check that the gap between the head and scale is proper.
(b) Check the scale head for rolling and yawing (looseness of scale head section).
(c) Check the scale surface for contamination and scratches.
(d) Check that the vibration and temperature are within the operating range.
(e) Check that the speed is within the permissible range without overshooting.
For detailed check items, contact the linear scale manufacturer.
A phase
B phase
Phase difference between A phase and B phase: 500ns or more
Z phase
One cycle of A phase
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