Specifications
SR84/85
This robust medium type magnetic scale system
that outputs position signals for machine tools
and other equipment that require
high-precision positioning.
• Measuring Length(ML) : 140-3,040mm
• Accuracy : 3+3ML/1,000 μm p-p,
5+5ML/1,000 μm p-p
• Maximum resolution : 0.01 μm
• Maximum response speed : 200m/min.
• Protocol (SR85) : Mitsubishi
Model CH33-**CP CH33-**CE
Cable with open end
PVC
YES
Cable with open end
PU
YES
Description
Cable length
Material
Armor
3,5,10,15m
*Please consult with our sales for the cable length other than above.
Details of model designation
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
Model
Thermal expansion coefficient (/ ˚C)
Accuracy (at 20 ˚C) ML:mm
Power supply voltage
Consumption current
Imrush current
Vibration resistance
Impact resistance
Protective design grade
Other protections
Operating temperature range( ˚C)
Storage temperature range( ˚C)
Mass
Slider sliding resistance
Measuring length (ML)
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
Output signal
Resolution
Reference point
12 ± 1 x 10
-6
/ ˚C
3+3ML/1,000 μm p-p or 5+5ML/1,000 μm p-p
DC4.75 - 5.25V(At cable connection end)
200 mA (at 120 Ω terminal) max.
2A max. (When the power supply rise time is 10 ms)
250m/s
2
(50Hz~2kHz)
450m/s
2
(11ms)
IP54 (Air purge not included), IP65 (Air purge included)
Oil lubricant can also be used under severe environmental conditions.
0 ~ +50 ˚C
-20 ~ +55 ˚C
Approx.1.24kg + 4kg/m
1N or less
Specifications
SR84 SR85
A/B, Reference point line driver signal
(compliant with EIA-422)
Incremental serial bidirectional signal,
compliant with EIA-485
Selectable from 0.05,0.1,0.5 and 1.0 μm
( Set at factory shipping)
Selectable from 0.01,0.05,0.1,0.5 and 1.0 μm
( Set at factory shipping)
Maximum response speed
50m/min(Resolution: 0.1 um,
Minimum phase difference: at 50 ns)
200m/min
(User-selected resolution setting)
None, Center point, Multi-point (40 mm pitch),
Reference mark (standard pitch: 20 mm),
User-selected point (1 mm pitch)
None, Center point,
User-selected point (1 mm pitch)
Robust
type
Maximum
resolution
0.01 μm
(SR85 only)
SR85-
SR84-
50
100
150
200
250
300
400
A
B
C
D
E
F
G
500
650
1000
1250
2500
3000
H
J
K
L
M
N
Specific mark : X=center, SR85 is only single reference mark.
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
Communication protocol
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
Minimum phase difference
Phase
difference
(ns)
Wire
2
4
B
D
NC Maker
Mitsubishi
0.01
0.05
0.1
0.5
1.0
SR84
-
B
C
D
E
-
G
H
J
K
Resolution
(μm)
SR85
A
B
C
D
E
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.”
*
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
A50
26 27