Rockwell Automation 1771-QA Stepper Positioning Assembly User Manual - Manual (Page 18)

2–8 Assembly and Installation
Publication 1771-UM002A–EN–P – May 2000
!
ATTENTION: Avoid shorting any of the output
terminals to ground, to the common terminal, or to the
positive (+) terminal of a power supply. Damage to the
module could occur.
The settings of switch assemblies S4, S5 and S6 for the desired
module output are summarized in Table 2.E.
Set all switch positions in assemblies S4, S5 and S6 to the same
output configuration.
Table 2.E
Expander Module Output (S4, S5, S6)
Switch
Assembly
Switch
1
Switch
2
Output
Terminal Module Output
S6
S5
ON
OFF
ON
ON
OFF
ON
OFF
ON
ON
OFF
ON
ON
10
11
Current Source (Open Emitter)
Current Sink (Open Collector)
Push-Pull
Current Source (Open Emitter)
Current Sink (Open Collector)
Push-Pull
S4 ON
OFF
ON
OFF
ON
ON
12 Current Source (Open Emitter)
Current Sink (Open Collector)
Push-Pull
Set all switch positions in assemblies S6, S5, and S4 to the same output configuration.
The stepper controller and pulse output expander modules have LED
indicators. Their color and function are described in the following
paragraphs.
Stepper Controller Indicators
Three LED indicators are located on the upper front panel of the
stepper controller module. They perform the following functions.
•
PC COMMUNICATIONS FAULT (Red)
This indicator is normally off. If a communications fault between
the stepper controller module and the PC processor is detected, or
a stepper controller module hardware fault is detected, this
indicator will illuminate.
Diagnostic Indicators