AB Quality Allen-Bradley 1771-DE User Manual page 21

Absolute encoder module
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Single-ended
Ouput Encoder
Power Supply
Common
Other bit connections not shown. Continue in
this manner until you make all bit connections.
If the encoder uses less than 12 bits, jumper the
unused input terminals.
Figure 3.6
Single ended Output Encoder Connection Diagram
Left
Wiring
Arm
Bit 0
Common
Bit 1
Common
Bit 2
Common
Connecting a Differential Output Encoder
Figure 3.7
is the connection diagram for a differential output encoder.
Connect the bit 0 signal line to terminal 1 and the bit 0 line to terminal 2.
Connect bit 1 to terminal 3 and the bit 1 line to terminal 4. Continue in
this way for all encoder channels.
If the encoder has less than 12 signal bits, jumper the unused input
terminals. For example, if you are using a 10-bit encoder, jumper
terminals 19 and 20 and terminals 17 and 18 on the right wiring arm.
Chapter 3
Configuring and Installing Your Module
Right
Wiring
Arm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Output
Circuitry
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
Bit 10
17
17
Common
18
18
Bit 11
19
19
Common
20
20
21
21
+
-
+5V dc Input Supply
From
Encoder
12836
3 9

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