Example of incremental encoder wiring, G z b a, Pulse counter channel 0 – Rockwell Automation 1794-ID2/B INSTALL INSTR 24v FLEX I/O 2 CHANNEL Incremental Encoder Module User Manual
Page 11: Flex i/o 2-channel incremental encoder module 11

FLEX I/O 2-Channel Incremental Encoder Module 11
Publication 1794-IN063C-EN-E - February 2014
Example of Incremental Encoder Wiring
Example of pulse transmitter with 1 pulse train. For connection of channel 1, refer to
connection diagram. To reduce noise, connect negative input to 0V DC terminal.
Note: Dotted lines indicate signals not always used.
Example of incremental encoder with 2 pulse trains, with or without reference, and/or gate
function. For connection of channel 1, refer to connection diagram.
Note: Dotted lines indicate signals not always used.
_
+
G
Z
B
A
_
+
_
+
_
+
17
18
19
20
21
22
23
24
25
33
0
1
2
3
4
5
6
7
8
16
35
36
37
38
39
40
41
42
15
51
34
0V DC
12/24V DC
External
power supply
12/24V DC
Pulse Counter Channel 0
Signal inputs
Signal for
counter gate
Signal for counter
calibration/preset
Signal for
up/down counting
+
G
Z
B
A
+
_
+
+
17
18
19
20
21
22
23
24
25
33
0
1
2
3
4
5
6
7
8
16
35
36
37
38
39
40
41
42
15
51
34
0V DC
12/24V DC
External
power supply
12/24V DC
Pulse Counter Channel 0
Signal inputs
_
_
_
_