Line drivers, External step/direction interface via single-ended, Ttl line drivers (not recommended) – Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR User Manual

Page 89: Differential line drivers

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Publication 1398-5.0 – October 1998

Interfaces

6-25

Figure 6.30

External Step/Direction Interface via TTL Differential
Line Drivers

Figure 6.31

External Step/Direction Interface via Single-Ended
TTL Line Drivers (not recommended)

Figure 6.32

External CW/CCW (Step Up/Step Down) Interface via TTL
Differential Line Drivers

TTL

USER

Step+

Step-

14

15

J1

twisted pair

Dir+
Dir-

16

17

twisted pair

Drive Chassis

Differential
Line Drivers

ELECTRONICS

Step
Step

Dir
Dir

+

-

+

-

twisted pair

Encoder Case

2
4

+5V

Supply
Return

+5 Volts

1

3

+5V

Supply

+5VDC

5V @ 250 mA

ECOM

For horizontal dashed lines, connect only if
J1 sources +5VDC power to user electronics

twisted pair

twisted pair

USER

Step+

Step-

14

J1

Drive

Dir+
Dir-

16

Drive Chassis

2
4

+5V

Supply
Return

1

3

+5V

Supply

+5VDC

Connect only if J1 sources +5VDC power to user electronics.

5V @ 250 mA

ECOM

ELECTRONICS

Step

Dir

-

+

-

+

+5 Volts

TTL

USER

CW+

CW-

14
15

J1

Drive

twisted pair

CCW+
CCW-

16
17

twisted pair

Drive Chassis

Differential
Line Drivers

ELECTRONICS

CW+
CW-

CCW+
CCW-

+

-

+

-

twisted pair

2
4

+5V

Supply
Return

+5 Volts

1

3

+5V

Supply

+5VDC

5V @ 250 mA

ECOM

For horizontal dashed lines, connect only if
J1 sources +5VDC power to user electronics

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