Rockwell Automation 1753-OW8 GuardPLC 8-Relay Output Module Installation Instructions - Manual (Page 7)

GuardPLC Relay Output Module 7
Rockwell Automation Publication 1753-IN012C-EN-P - June 2010
Connect Safety-related Relay Outputs
The module has eight relay outputs whose status is indicated via status indicators.
An output is in a safety state when it is de-energized. When an internal (non-communication)
fault occurs, all outputs are switched off.
Each output of the module is fitted with two safety relays with positively guided contacts and
one MSR-type relay.
Relay outputs are connected to these terminals. See the wire size and terminal torque
specifications on page
11 .
The output contacts are connected in pairs via terminal connectors (numbered terminals). The
terminal pins on the front plate of the module have the same numbering sequence to help
prevent miswiring.
For the connection of higher voltages (110/220V AC) besides SELV or PELV, suitable cables
must be used with double or reinforced insulation.
Internal non-replaceable fuses are used to limit the switching current of the relay contact circuits
to 60% of the maximum admissible AC switching current. For DC switching, the relay contact
circuits must be additionally equipped with an external fuse rated no higher than the maximum
admissible DC switching capacity.
Errors in one or more channels are indicated by the FAULT status indicator. In addition, the
system status can be evaluated in the user program.
Terminal Number Designation Relay Output
1 DO1 Contact 1, terminal A
2 Contact 1, terminal B
3 DO2 Contact 2, terminal A
4 Contact 2, terminal B
5 DO3 Contact 3, terminal A
6 Contact 3, terminal B
7 DO4 Contact 4, terminal A
8 Contact 4, terminal B
9 DO5 Contact 5, terminal A
10 Contact 5, terminal B
11 DO6 Contact 6, terminal A
12 Contact 6, terminal B
13 DO7 Contact 7, terminal A
14 Contact 7, terminal B
15 DO8 Contact 8, terminal A
16 Contact 8, terminal B