4.7 Other I/O

4.7.1 Encoder interfaces - X9, X10, X11, X12, X13

9 5

6 1

Location

Connectors X9, X11, X11, X12, X13

 

 

 

Pin

Name

Description

 

 

 

1

CHA+

Channel A signal

 

 

 

2

CHB+

Channel B signal

 

 

 

3

CHZ+

Index channel signal

 

 

 

4

(NC)

Not connected

 

 

 

5

DGND

Power supply ground

 

 

 

6

CHA-

Channel A signal complement

 

 

 

7

CHB-

Channel B signal complement

 

 

 

8

CHZ-

Index channel signal complement

 

 

 

9

+5V out

Power supply to encoder

 

 

 

Description

Five identical encoder inputs, each with complementary A, B and Z channel inputs on a 9-pin female D-type connector

Up to five incremental encoders may be connected to NextMove BXII. The auxiliary (master) encoder (X13) is labeled Aux Encoder. Each input channel enters an AM26LS32AM differential line receiver with pull up resistors and terminators. Encoders must provide 5V single ended or differential signals, or RS422/RS485 differential signals. The use of individually shielded twisted pair cable is recommended. See section 4.4.1 for details of the encoder power supply.

CHA+ Pin 1

CHA- Pin 6

NextMove BXII

Vcc

 

2k2

 

22R

 

 

AM26LS32

120R

Differential

22R

line receiver

2k2

to CPU

Figure 7 - Encoder channel input circuit - Channel A shown

4-12 Input / Output

MN1904

Page 28
Image 28
Baldor BXII installation manual Other I/O, Encoder interfaces X9, X10, X11, X12

BXII specifications

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