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Chapter 2
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2.3. Motor Feedback Connections (J103)
The motor feedback connector (a 25-pin, D-style connector) has inputs for an encoder, limit switches, Hall-
effect devices, motor over-temperature device, 5 Volt encoder and limit power, and optional brake
connection. The connector pin assignment is shown below with detailed connection information in the
following sections.
Table 2-13:
Motor Feedback Connector Pin Assignment (J103)
Pin#
Description
In/Out/Bi
Connector
1
Chassis Frame Ground
N/A
13
25
1
14
2
Motor Over Temperature Thermistor
Input
3
+5V Power for Encoder (500 mA max)
Output
4
Reserved
N/A
5
Hall-Effect Sensor B (brushless motors only)
Input
6
Encoder Marker Reference Pulse -
Input
Absolute Encoder Interface Clock -
Output
7
Encoder Marker Reference Pulse +
Input
Absolute Encoder Interface Clock +
Output
8
Absolute Encoder Interface Data -
Bidirectional
9
Reserved
N/A
10
Hall-Effect Sensor A (brushless motors only)
Input
11
Hall-Effect Sensor C (brushless motors only)
Input
12
Clockwise End of Travel Limit
Input
13
Optional Brake - Output
Output
14
Encoder
Input
15
Encoder Cosine -
Input
16
+5V Power for Limit Switches (500 mA max)
Output
17
Encoder Sine +
Input
18
Encoder Sine -
Input
19
Absolute Encoder Interface Data +
Bidirectional
20
Signal Common for Limit Switches
N/A
21
Signal Common for Encoder
N/A
22
Home Switch Input
Input
23
Encoder Fault Input
Input
24
Counterclockwise End of Travel Limit
Input
25
Optional Brake + Output
Output
Mating Connector
Aerotech P/N
Third Party P/N
25-Pin D-Connector
ECK00101
FCI DB25P064TXLF
Backshell
ECK00656
Amphenol 17E-1726-2
Ensemble CP
Installation and Configuration
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