Rockwell Automation 1753-IB16XOB8 GuardPLC 16-Digital Inputs and 8-Digital Outputs Installation Instructions - Manual (Page 16)

16 GuardPLC 16-Digital Inputs and 8-Digital Outputs Module
Publication 1753-IN011A-EN-P - October 2005
The digital outputs can be configured as:
• 1-pole switch without line monitoring
• 2-pole switch with or without line monitoring
• 3-pole switch (2-pole with common reference).
Refer to the GuardPLC Controller Systems User Manual, publication number
1753-UM001 for more information.
1-pole Connection
For 1-pole applications, all 8 DO+ and all 8 DO- outputs are available, for a total of
16 outputs. If you are using a positive-switching output, connect the other side of
the output to S-. If you are using a negative-switching output, connect the other
side of the output to S+.
The DO+ outputs must be connected to the supply S- and the DO- outputs must be
connected to the supply S+.
Line monitoring with a 1-pole connection is not possible.
For 1-pole connection, Inductive loads can be connected without a protection
diode on the load because there is a protection diode located within the GuardPLC
device. However, Rockwell Automation recommends that you attach a protection
diode directly to the load to suppress any interference voltage. A 1N4004 diode is
recommended.
IMPORTANT
You must not connect the DO+ output directly to L- or connect
the DO- outputs directly to L+. You must use the S+ and S-
terminals.
1753-IB16XOB8
1+
1-
2+
2-
S-
S+
Actuator