Rockwell Automation 847A_B Hollow Shaft Incremental Encoders User Manual
Rockwell Automation Equipment
e
Code
Output Configuration
Signal Phasing A-leads-B
clockwise rotation viewed from shaft end, Z gated A
4
4.5…5.5V line driver outputs (TTL)
5
4.5…5.5V open collector outputs
6
8…30V line driver outputs (HTL)
7
8…30V open collector outputs
Signal Phasing B-leads-A
clockwise rotation viewed from shaft end, Z gated BN
A
4.5…5.5V line driver outputs (TTL)
B
4.5…5.5V open collector outputs
C
8…30V line driver outputs (HTL)
D
8…30V open collector outputs
Options 5 and B cannot be ordered with option 2 from Table d.
Options 6, 7, C, and D cannot be ordered with option 1 from Table d.
f
Code
Connector/Cable Exit
R
Radial exit
g
Code
Connector/Cable Type
A
M12 connector, 8-pin with mating connector
B
M12 connector, 8-pin
P
1.5 m (4.9 ft) cable
Q
5 m (16.4 ft) cable
R
10 m (32.8 ft) cable
h
Code
Resolution
00001...
65536
00001...65536 pulses/revolution
Installation Instructions
847A and 847B Hollow Shaft Incremental Encoders
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Selection Guide
a
Code
Encoder Diameter/Type
A
2 in. diameter, blind hollow shaft
B
2 in. diameter, through hollow shaft
b
Code
Mounting Configuration
Q
3-point mounting
R
2-point mounting
c
Code
Shaft Size
3
3/8 in. diameter metal hollow shaft
4
1/2 in. diameter metal hollow shaft
d
Code
Power Supply
1
4.5…5.5V DC
2
8…30V DC
847
A
a
-
Q
b
c
e
-
65536
3 1 4
R B
d
f g
h
Accessories
Description
Part Number
Differential encoder buffer board
845-BB*
M12 cable
889D-F8FB-*
* See Sensor Catalog for selection