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

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