Dimensions—inches (mm) – Rockwell Automation 845K Incremental Encoder User Manual
Page 2

Cable
Current Source, Current Sink, Open Collector Outputs
Wire Pair
Wire Color
Function
Red/Black
Red
DC+ Input
Red/Black
Black
DC Return
White/Black
White
Channel A Output
White/Black
Black
Not Connected
Blue/Black
Blue
Channel B Output
Blue/Black
Black
Not Connected
Green/Black
Green
Channel Z Output
Green/Black
Black
Not Connected
Cable
Differential Line Driver Outputs
Wire Pair
Wire Color
Function
Red/Black
Red
DC+ Input
Red/Black
Black
DC Return
White/Black
White
Channel A Output
White/Black
Black
Channel A Output
Blue/Black
Blue
Channel B Output
Blue/Black
Black
Channel B Output
Green/Black
Green
Channel Z Output
Green/Black
Black
Channel Z Output
Current Sink and Open Collector Output Waveform:
90 +/- 22°
Channel A
1 Cycle
Channel B
(Index) Channel Z
Logic 1
Logic 0
(CCW Rotation Shown)
Current Source Output Waveform:
90 +/- 22°
Channel A
1 Cycle
Channel B
(Index) Channel Z
Logic 1
Logic 0
(CCW Rotation Shown)
Differential Line Driver Output Waveform:
90 +/- 22°
Channel A
Channel A
Channel B
Channel B
(Index)Channel Z
Channel Z
1 Cycle
Logic 1
Logic 0
(CCW Rotation Shown)
Dimensions—inches (mm)
Square Flange Mount
English Servo Mount
0.85/0.90
(21.59/22.86)
1.032
(26.21)
2.063
(52.40)
+ 0.0000
- 0.0003
0.300
(7.62)
8-32 UNCĆ2B x 0.18 (4.6) Deep
on a 1.875(47.6) Dia. Bolt Circle,
3 PlacesĊ120° Apart
0.25 (6.35)
0.3747
1.032 (26.21)
0.21 (5) Dia.Ċ4 Mtg. Holes
0.28 (7) Rad. Typ. 4 Places
2.62 (66.5)
Sq.
2.063
(52.40)
2.50 (63.5)
Max.
(9.517) Dia.
+ 0.000
- 0.001
1.250
(31.75) Dia.
Pigtail
24 (610) Typ.
8-32 UNCĆ2B x 0.18 (4.6) Deep
on a 1.875 (47.6) Dia. Bolt Circle,
3 PlacesĊ120° Apart
0.100 (2.54) Max.
0.300 (7.62)
0.85/.90
(21.59/22.86)
2.31 (58.67) Dia.
2.56 (65) Dia.
2.50 (63.5)
Max.
+ 0.0000
- 0.0003
0.3747
(9.517) Dia.
+ 0.000
- 0.001
1.250
(31.75) Dia.
+ 0.000
- 0.003
2.500
(63.50) Dia.
Pigtail
24 (610) Typ.
0.100 ± 0.005 (2.54)
Publication 75008–061–01(A)
October 1995
Printed in USA