BL57-RE
(E)
7-1
7. Main Specifications
Model
F
G
H
Output format
A/B signal output type
Analog output type
Detection system
Diffraction grating scanning system
Scale length
Measuring length (mm)
30, 60, 110, 160, 210, 260, 310, 360, 410
(Neoceram)
Scale’s max. travel
Measuring length
+
10 mm (5 mm on each side)
Scale overall length
Measuring length
+
36 mm
Scale length
Measuring length (mm)
60, 160, 260, 360, 460, 560, 660, 760, 860, 960, 1060
(Soda lime glass)
Scale’s max. travel
Measuring length
+
10 mm (5 mm on each side)
Scale overall length
Measuring length
+
36 mm
Grating pitch
1.6
µ
m
Signal pitch
0.4
µ
m
Output signal
Differential
Differential (compliant with
(compliant with EIA-422)
EIA-422 for reference point
output specification only)
Output resolution
0.1/0.05
µ
m
0.02/0.01
µ
m
0.4
µ
m (1 Vp-p)
(selectable)
(selectable)
Scale accuracy
±
0.5
µ
m (30 to 170 mm),
±
1.0
µ
m (220 to 370 mm),
±
1.5
µ
m (420 or higher)
Repeatability
0.05
µ
m or less
Return error
0.05
µ
m or less
Temperature expansion coefficient
Neoceram
−
0.7
×
10
−
6
/
°
C . Soda lime glass 8
×
10
−
6
/
°
C
Maximum response speed
1500 mm/s (0.1
µ
m)
300 mm/s (0.02
µ
m)
3000 mm/s (Note 1)
650 mm/s (0.05
µ
m)
120 mm/s (0.01
µ
m)
Minimum phase difference:
Minimum phase difference:
Max: 7.5 MHz
38 ns
38 ns
Alarms
Max. response speed exceeded or None Signal level error;
None
When one of these states occurs, the output signal becomes
high impedance.
Reference point position
Any selected point (within the measuring length range)
Reference point accuracy (at 20
°
C)
±
0.4
µ
m (varies depending on machine traveling)
Reference point output signal
Unidirectional synchronous reference point (position and detection direction designed)
Head cable
Cable length
1 m (Note 4)
Bending radius
Static: 10 mm
Output cable length
15 m max. (Note 2)
15 m max. (Note 1) (Note 2)
(up to the electronic control section (connected later))
Power supply (Note 3)
+
5 V (
±
5 %)
Consumption current
450 mA (no load)/600 mA (when using 120
Ω
terminal)
Vibration resistance
100 m/s
2
(50 to 2000 Hz)
Impact resistance
200 m/s
2
Operating temperature range
0 to
+
40
°
C (no condensation)
Storage temperature range
−
10 to
+
50
°
C
Light source
Semiconductor laser Maximum output: 4 mW Wavelength: 790 nm
Radiation power
JIS class 1
DHHS class 1
Summary of Contents for BL57-RE
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