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Basic Installation 3-27MN1901
3.7.3 EnDat (absolute encoder) option - X8
The absolute encoder interface supports both incremental and absolute (multi and single turn)
feedback using SinCos technology. It is possible to read and write information to the encoder .
The absolute encoder connections are made using the 15-pin D-type female connector X8.
Twisted pair cables must be used for the complementary signal pairs e.g. SinA+ and SinA-.
The overall cable shield (screen) must be connected to the metallic shell of the D-type
connector.
Location
Connector X8, 15-pin D- type female connector
Pin Encoder function
1 Data+
2 Data-
3 +5V out
4 +5V out
5 DGND
6 Shield
7 Cos B-
8 (Reserved - do not connect)
9 Clock -
10 Clock+
11 (Reserved - do not connect)
12 Sin A-
13 Sin A+
14 Cos B+
15 (Reserved - do not connect)
Description Absolute encoder input, non-isolated. Pin 4 provides
power to the encoder (200mA max)
Data+
Data-
Cos B-
Cos B+
1
2
7
14
12
13
X8
Absolute
Encoder
Sin A-
Sin A+
Twisted pairs
10
9
Clock+
Clock-
5DGND
4 +5V out
Connect overall shiel d
to connector backshells.
Connect internal
shields to DGND.
Motor
Figure 16 - EnDat absolute encoder cable connections
1
5
15
6
11
10
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