Rockwell Automation 1753-L32BBBP-8A GuardPLC 1800 Controller - Manual (Page 12)

12 GuardPLC 1800 Controllers
Rockwell Automation Publication 1753-IN002C-EN-P - June 2010
Connecting the I/O Circuits
The I/O circuits are connected to the front plate of the controller using pluggable terminals. For
controls with analog inputs, shielded cabling is fed in from below so that the shielding can be
connected to the shield contact plate using a clip. Remove about 2 cm (0.78 in.) of the outer
cable insulation so that the mesh is exposed at the point where the cable is clipped to the plate.
Position the clip over the uninsulated cable shielding and push it into the slots of the shield
contact plate until it fits firmly in place, as shown below.
Safety-related Digital Outputs
The controller has eight digital outputs (DO1…DO8) whose status is indicated via status
indicators.
An output is in a safe state when it is de-energized. When a fault occurs, all outputs are switched
off.
Outputs 1…3 and 5…7 can have a load of 0.5 A at an ambient temperature of 60 °C (140 °F).
Outputs 4 and 8 can each have a load of 1 A at an ambient temperature of 60 °C (140 °F), or up
to 2 A at an ambient temperature of 50 °C (122 °F).
With an overload, one or all of the outputs are turned off. When the overload is eliminated, the
outputs are activated again according to the specified value.
Although the external line of an output is not monitored, a short-circuit will be indicated.
59 T7 Transmitter supply 7
60 I7 Analog input 7
61 L- Reference pole
62 T8 Transmitter supply 8
63 I8 Analog input 8
64 L- Reference pole
IMPORTANT Make sure that the mesh comes in direct contact with the shield contact plate.
If the mesh does not touch the plate, the cable is not grounded.
Terminal Number Designation Function
47 48 49 50 51 52 41 42 43 44 45 46 53 5
Shielded Cable Cable Clip
Mesh