SR84/850 pages

SR84/85
Specifications
Model
This robust medium type magnetic scale system
that outputs position signals for machine tools
and other equipment that require
high-precision positioning.
SR84
SR85
140~3040mm
140, 240, 340, 440, 540, 640, 740, 840, 940, 1040, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840,
2040, 2240, 2440, 2640, 2840, 3040
Measuring length (ML)
12 ± 1 x 10-6/ ˚C
Thermal expansion coefficient (/ ˚C)
A/B, Reference point line driver signal
(compliant with EIA-422)
Output signal
Incremental serial bidirectional signal,
compliant with EIA-485
3+3ML/1,000 μm p-p or 5+5ML/1,000 μm p-p
Accuracy (at 20 ˚C) ML:mm
Selectable from 0.05,0.1,0.5 and 1.0 μm
( Set at factory shipping)
Reference point
Selectable from 0.01,0.05,0.1,0.5 and 1.0 μm
( Set at factory shipping)
None, Center point, Multi-point (40 mm pitch),
Reference mark (standard pitch: 20 mm),
User-selected point (1 mm pitch)
Resolution
None, Center point,
User-selected point (1 mm pitch)
Power supply voltage
DC4.75 - 5.25V(At cable connection end)
Consumption current
200 mA (at 120 Ω terminal) max.
2A max. (When the power supply rise time is 10 ms)
Imrush current
50m/min(Resolution: 0.1 um,
Minimum phase difference: at 50 ns)
Maximum response speed
200m/min
(User-selected resolution setting)
250m/s2 (50Hz~2kHz)
Vibration resistance
450m/s2 (11ms)
Impact resistance
IP54 (Air purge not included), IP65 (Air purge included)
Protective design grade
Oil lubricant can also be used under severe environmental conditions.
Other protections
In the case of errors such as a reverse-connected power supply or over-voltage,
the internal fuse is cut to protect the power being supplied and wiring.
Power supply protection
FCC Part15 Subpart B Class A. ICES-003 Class A Digital Device.
EN55011 Gp1 Class A, EN61000-6-2. Safety standards not applicable (60 V DC or less).
Safety standards
• Measuring Length(ML) : 140-3,040mm
Operating temperature range( ˚C)
• Accuracy : 3+3ML/1,000 μm p-p,
Storage temperature range( ˚C)
5+5ML/1,000 μm p-p
• Maximum resolution : 0.01 μm
• Maximum response speed : 200m/min.
• Protocol (SR85) : Mitsubishi
0 ~ +50 ˚C
-20 ~ +55 ˚C
Approx.1.24kg + 4kg/m
Mass
1N or less
Slider sliding resistance
Model
Description
CH33-**CP
CH33-**CE
Cable with open end
Cable with open end
Cable length
3,5,10,15m
Material
PVC
PU
Armor
YES
YES
*Please consult with our sales for the cable length other than above.
Details of model designation
Phase
difference
(ns)
Minimum phase difference
Robust
type
Maximum
resolution
0.01 µm
(SR85 only)
SR84SR85-
Single reference mark shown by mm from left end of ML e.g.
850mm = 850, in case of center then X For 1000mm or longer, 2
left digits shown by alphabet
1,000~1,099mm A
1,400~1,499mm E
1,800~1,899mm J
1,100~1,199mm B
1,500~1,599mm F
1,900~1,999mm K
1,200~1,299mm C
1,600~1,699mm G
2,000~2,040mm L
1,300~1,399mm D
1,700~1,799mm H
Ex :1,050mm
50
100
150
200
250
300
400
A50
Specific mark : X=center, SR85 is only single reference mark.
NC Maker
Communication protocol
Resolution SR84
(μm)
Resolution & Direction*
Accuracy grade A : 5+5ML/1000 S : 3+3ML/1000μm
ML:Measuring length by mm
Cable out direction: R= Right, L= Left
Measuring length by cm
0.01
0.05
0.1
0.5
1.0
B
C
D
E
G
H
J
K
A
B
C
D
E
F
G
SR85
A
B
C
D
E
Mitsubishi
500
650
1000
1250
2500
3000
H
J
K
L
M
N
Wire
2
4
B
D
F
G
H
J
K
When the slider is moved in the direction of the arrow, the A signal is ahead when
*
the direction is “positive,”and B signal is ahead when the direction is “negative.”
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