![background image](http://html1.mh-extra.com/html/omron/cj1m-cpu21/cj1m-cpu21_operation-manual_742493064.webp)
35
Wiring Examples
Section 3-3
3-3-2
Pulse Input Connection Examples
Encoders with 24-V DC Open-collector Outputs
This example shows how to connect an encoder that has phase-A, phase-B,
and phase-Z outputs.
25
29
26
30
8
12
0 V
+24 V
+
−
0 V
24 V
I
A
I
B
I
C
25
29
26
30
8
12
Encoder
(24-V DC power supply)
Model E6B2-
CWZ6C with NPN
open-collector
outputs
Black
White
Orange
Brown
Blue
Phase A
Phase B
Phase Z
+Vcc
0 V (COM)
24-V DC power supply
(Do not share the power
supply with any other I/O
applications.)
CJ1M CPU Unit
Differential-phase input mode
High-speed counter 0:
Phase A, 24 V
High-speed counter 0:
Phase A, 0 V
High-speed counter 0:
Phase B, 24 V
High-speed counter 0:
Phase B, 0 V
High-speed counter 0:
Phase Z, 24 V
High-speed counter 0:
Phase Z, 0 V
Encoder
Power supply
input
Power
supply
Shielded twisted-pair cable
CJ1M CPU Unit
Phase
A
Phase
B
Phase
C
Summary of Contents for CJ1M-CPU21
Page 1: ...Cat No W395 E1 03 CJ series Built in I O CJ1M CPU21 22 23 CJ1M CPU Units...
Page 2: ...CJ series Built in I O CJ1M CPU21 22 23 CPU Units Operation Manual Revised August 2004...
Page 3: ...iv...
Page 19: ...xx...
Page 79: ...50 Wiring Examples Section 3 3...
Page 217: ...188 Origin Search and Origin Return Functions Section 6 3...
Page 220: ...191 Built in Outputs Section 7 1...
Page 247: ...218 Built in Outputs Section 7 1...
Page 251: ...222 Combinations of Pulse Control Instructions Appendix A...
Page 255: ...226 Using Pulse Instructions in other CPU Units Appendix B...
Page 263: ...234 Index...
Page 265: ...236 Revision History...