Specifications

SR77
This slim type magnetic scale system
that outputs position signals for machine tools
and other equipment that require
high-precision positioning.
• Measuring Length(ML) : 70-2,040mm
• 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 : FANUC, Mitsubishi,
Panasonic, YASKAWA
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.
70~2040mm
70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570, 620, 720, 770, 820, 920, 1020, 1140,
1240, 1340, 1440, 1540, 1640, 1740, 1840, 2040
Model
Thermal expansion coefficient (/ ˚C)
Output signal
Accuracy (at 20 ˚C) ML:mm
Resolution
Zero count position
Power supply voltage
Consumption current
Imrush current
Maximum response speed
Vibration resistance
Impact resistance
Protective design grade
Other protections
Operating temperature range( ˚C)
Storage temperature range( ˚C)
Mass
Slider sliding resistance
Power supply protection
Safety standards
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).
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.
Measuring length (ML)
SR77
12 ± 1 x 10
-6
/ ˚C
Absolute serial bidirectional signal, compliant with EIA-485
3+3ML/1,000 μm p-p or 5+5ML/1,000 μm p-p
Selectable from 0.01,0.05,0.1,0.5 and 1.0 μm( Set at factory shipping)
Center mark
DC4.75 - 5.25V(At cable connection end)
200 mA (at 120 W terminal) max.
2A max. (When the power supply rise time is 10 ms)
200m/min (User-selected resolution setting)
150m/s
2
(50Hz~3kHz)
350m/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.0.27kg + 1.36kg/m
1N or less
Specifications
Maximum
resolution
0.01 μm
ABS
Details of model designation
Slim
type
SR77-
Absolute zero point 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
Wire
4
2
4
2
2
A
B
D
F
H
NC Maker
FANUC
YASKAWA
Panasonic
Mitsubishi
When the slider is moved in the direction of the arrow, the signal is addition when
the direction is “positive,”and it is subtraction when the direction is “negative.” The
direction is selected when ordering.
*
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
Note:Mitsubishi controler is only A
0.01
0.05
0.1
0.5
1.0
1/8192
1/1024
Direction
Direction
A
B
C
D
E
L
M
F
G
H
J
K
-
-
Resolution
(μm)
FANUC, Mitsubishi,
Panasonic
YASKAWA
Number
of
Divisions
30 31