Endat (Absolute Encoder) Option - X8 - Baldor FDH1A05TB-EN20 Installation Manual

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
5
10
Absolute
Encoder
MN1902
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Location
Pin
1
2
3
4
5
6
11
7
8
15
9
10
11
12
13
14
15
Description
Motor
Figure 16 - EnDat absolute encoder cable connections
Connector X8, 15-pin D-type female connector
Encoder function
Data+
Data-
+5V out
+5V out
DGND
Shield
Cos B-
(Reserved - do not connect)
Clock-
Clock+
(Reserved - do not connect)
Sin A-
Sin A+
Cos B+
(Reserved - do not connect)
Absolute encoder input, non-isolated. Pin 4 provides
power to the encoder (200mA max)
Twisted pairs
Connect overall shield
to connector backshells.
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X8
1 Data+
2 Data-
12 Sin A-
13 Sin A+
7 Cos B-
14 Cos B+
9 Clock-
10 Clock+
4 +5V out
Connect internal
5 DGND shields to DGND.
Basic Installation 3-27