Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 536)

I/O Interface
Section 10A
10A-13
Figure 10A.6 shows a typical input circuit diagram for the push-button
MTB panel I/O module.
Figure 10A.6
Push-Button MTB Panel I/O Module Input Circuit Diagram
Operator Panel
Push-Button MTB Panel Push-Button MTB Panel I/O Module
Common
Fiber
optics
3A AMP fuse
dc power
supply
+12V
11269-I
Switch Common
PE
+
--
CMOS
Input
Converted to
Optic Signal
The MTB I/O module inputs can be energized by a number of different
switching devices, provided that the input specifications listed in
Table 10A.G are met. Figure 10A.7 shows some typical input device
options.
Figure 10A.7
Input Device Options for the Rotary MTB Panel I/O Module
MTB Panel MTB Panel
MTB Panel MTB Panel
PE
Switch or
relay contact
Conductive rubber
(resistance) switch
Semi-conductor
switch
External supply
8.5 to 13.2 V dc
11312-I
PE PE
PE