7.9.4 Incremental RS422 Encoder with Index
Connecting an incremental encoder with index channel.
Pin Layout X20/X21
Pin Name
Encoder
15-pin female
D-Sub socket
female D-Sub socket
1
+5VDC
Encoder Supply
2
ChA+
Channel A positive, RS-422 input
3
ChB+
Channel B positive, RS-422 input
4
ChZ+
Index channel positive, RS-422 input
5
n.c.
- (do not connect)
6
Gnd
Encoder Ground
7
ChA-
Channel A negative, RS-422 input
8
ChB-
Channel B negative, RS-422 input
9
ChZ-
Index channel negative, RS-422 input
10
n.c.
- (do not connect)
11
EncIn0
TTL Level Input No. 0 (max 5VDC Input)
12
EncIn1
TTL Level Input No. 1 (max 5VDC Input)
13
EncIn2
TTL Level Input No. 2 (max 5VDC Input)
14
EncIn3
TTL Level Input No. 3 (max 5VDC Input)
15
Gnd
Signal Ground
Table 25: Pin out used for the incremental encoder.
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Figure 20: Encoder jacks
(X20,X21).
5
10
15
1
6
11
