Rockwell Automation 1753-IB16 GuardPLC Digital Input Module Installation Instructions - Manual (Page 9)

GuardPLC Digital Input Module 9
Rockwell Automation Publication 1753-IN004C-EN-P - June 2010
Line Control
Line control is a short-circuit and line-break monitoring system, for example, E-stop inputs that
are configured for the 1753-IB16 system.
For line control, the device has four digital pulse test sources (PO) connected to the following
terminals.
The example below shows two pulse test sources connected to the digital inputs (DI) of the same
system. As a result, the connections to the digital inputs (DI) are monitored.
.
Inputs are set to 0, a fault code is generated, and the FAULT status indicator is on when:
•
a short-circuit occurs between two parallel connections.
•
two connections are reversed.
•
earth fault occurs on one of the lines (only with earthed reference pole).
•
a line breaks or one of the contacts opens (that is, when one of the E-stop off switches is
pressed in the example above).
Terminal Number Designation Function
25 L- Reference pole
26 1 Pulsed source 1
27 2 Pulsed source 2
28 3 Pulsed source 3
29 4 Pulsed source 4
30 L- Reference pole
IMPORTANT For information on how to configure inputs and pulse test sources for line
control, see the GuardPLC Controller Systems User Manual, publication
1753-UM001 .
Emergency OFF 1 Emergency OFF 2
PO 1 2
DI 1 2 DI 3 4