Not recommended), With 5 vdc to 12 vdc pull-up (not recommended) – Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual User Manual
Page 89
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Publication 1398-5.2 – PDF 1997
Interfaces
6-25
Figure 6.29
Single-Ended Encoder Interface via Standard TTL Signals
(not recommended)
Figure 6.30
Single-Ended Encoder Interface via Open Collector Transistor
with 5 VDC to 12 VDC Pull-up (not recommended)
twisted pair
twisted pair
Ch B
ENCODER
BX+
BX-
16
J1
Drive
Ch A
AX+
AX-
14
Drive Chassis
Encoder Case
4
2
+5V
Supply
Return
+5 Volts
1
3
+5V
Supply
+5VDC
Connect only if J1 sources Encoder power.
5V @ 250 mA
ECOM
74xx
TTL Output
74xx
TTL Output
Ch I
IX+
IX-
18
74xx
TTL Output
twisted pair
twisted pair
Ch B
ENCODER
BX+
BX-
16
J1
Drive
AX+
AX-
14
Drive Chassis
Encoder Case
Ch A
5-12 Volts
5-12 Volts
4
2
+5V
Supply
Return
ECOM
Ch I
IX+
IX-
18
5-12 Volts
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