Digital inputs, Dedicated control circuits, Selectable circuits – Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual User Manual
Page 67: Digital input circuit
![background image](/manuals/578365/67/background.png)
Publication 1398-5.2 – PDF 1997
Interfaces
6-3
Digital Inputs
ULTRA 100 Series drives have active high inputs, which prevent
disconnects and ground faults from activating a drive. The typical ON
time for an input to be recognized is 2.0 msec.
Two discrete input circuits types are available on the J1 connector.
Both circuits support logic type interfaces with optically isolated,
single ended and active high characteristics.
Dedicated Control Circuits
The ENABLE input interface with switch closures or sourcing type
outputs.
Selectable Circuits
INPUT 1, INPUT 2, INPUT 3 and FAULT RESET operate with
switch closures or sourcing type circuitry. Selectable inputs are:
13 I/O COM
External I/O
Common
32 INPUT1
Selectable
Input 1
14 AX+/
CW+/
STEP+
Auxiliary
Encoder Chan-
nel A+
33 INPUT2
Selectable
Input 2
15 AX-/CW-/
STEP-
Auxiliary
Encoder Chan-
nel A-
34 INPUT3
Selectable
Input 3
16 BX+/
CCW+/
DIR+
Auxiliary
Encoder Chan-
nel B+
35
Reserved
17 BX-/
CCW-/
DIR-
Auxiliary
Encoder Chan-
nel B-
36
Reserved
18 IX+
Auxiliary
Encoder Chan-
nel I+
37
Reserved
19 IX-
Auxiliary
Encoder Chan-
nel I-
38
Reserved
Table 6.1:
J1 Controller Pin-Outs
(continued)
Pin & Signal
Description
Pin & Signal
Description
Pin & Signal
Description
pin 25
pin 26
pin 50
pin 1
Figure 6.1
Digital Input Circuit
Drive
J1
3K
1K
I/O COM