2
Rockwell Automation Publication 844D-IN001B-EN-P - April 2017
Blind and Through-shaft Optical Incremental Encoders
Selection
Differential Line Driver Output (for resolution ≤ 8192 PPR)
Differential Line Driver Output (for resolution > 8192 PPR)
Electrical Connections
844D
—
A
5
A
C
1
CR
a
b
c
d
e
f
a
b
Shaft Design
Shaft Size
1
Code
Description
Code
Description
A
Blind-shaft
4
12.7 mm (1/2 in.)
B
Through-shaft
5
15.87 mm (5/8 in.)
6
19.05 mm (3/4 in.)
c
7
22.22 mm (7/8 in.)
Mounting Configuration
8
25.4 mm (1.0 in.)
Code
Description
9
28.57 mm (1 1/8 in.)
A
Tether, 12.7 mm (0.50 in.) bolt on a
184.15 mm (7.25 in.) dia. B.C. (to fit
215.9 mm (8.5 in.) NEMA C face)
M
30 mm (1.18 in.)
d
B
Tether, 9.525 mm (0.375 in.) bolt on a
149.35 mm (5.88 in.) dia. B.C. (to fit
114.3 mm (4.5 in.) NEMA C face)
Connection Type
Code
Description
C
10-pin connector
C
Tether, 9.525 mm (0.375 in.) bolt on a
63.5…101.6 mm (2.5…4.0 in.) dia.
radius
T
Terminal block
2
1
1 m (3.28 ft) cable
D
Anti-rotation pin
f
Resolution
e
Code
Description
Power Supply and Output
3
DB
120
Code
Description
CK
360
1
5V DC in, 5V DC DLD out (3487)
FW
1024
2
5…26V DC in, 5…26V DC DLD out
(7272)
4
CS
2048
CR
2500
3
5…15V DC in, 5…15V DC DLD out
(4469)
DS
4096
DR
5000
4
8…26 DC in, 5V DC DLD out (3487)
FS
8192
CV
10000
5
LS
16384
5
1
Shaft sizes below 25.4 mm (1.0 in.) include an insulating insert.
2
Terminal block unit is not rated for fluid ingress protection (IP40 (IEC 529) only.
3
DLD = Differential Line Driver.
4
7272 line driver has a voltage drop of 1.9V.
5
Available with power supply and output options 1, 2, 3, and 4.
Table 1 - Differential Line Driver Outputs
Function
10-pin Connector
Shielded Cable
Terminal
Channel A Output
A
White
1
Channel B Output
B
Pink
2
Channel Z Output
C
Violet
7
DC+ Input
D
Red
3
DC Return
F
Blue
4
Case Ground
G
Green
—
Channel A Output
H
Brown
5
Channel B Output
I
Black
6
Channel Z Output
J
Yellow
8
IMPORTANT
The 10-pin connector type MS3102R18-1P
(Index) Channel Z
Channel Z
Channel B
Channel B
90 ± 22 °
Channel A
Channel A
1 Cycle
Logic 1
Logic 0
(CCW Rotation Shown)
(Index) Channel Z
Channel Z
Channel B
Channel B
90 ± 22 °
Channel A
Channel A
1 Cycle
Logic 1
Logic 0
(CCW Rotation Shown)
