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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.
6
1
11
5
15
10
Absolute
Encoder
MN1901
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)
Motor
Connect overall shield
to connector backshells.
Figure 16 - EnDat absolute encoder cable connections
Twisted pairs
www.baldormotion.com
X8
1
Data+
2
Data-
12
Sin A-
13
Sin A+
7
Cos B-
14
Cos B+
9
Clock-
10
Clock+
4
+5V out
5
DGND
6
Chassis
Connect internal
shields to pin 6.
Basic Installation 3-27
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