Install the Chassis Interconnect Cable (optional)
To connect up to three chassis together (for a maximum of 30 I/O slots),
install the chassis interconnect cable before attaching your power supply.
SLC chassis where
processor will be installed
Install Your I/O Modules and Attach Your Power Supply
Use the installation instructions/user manuals for your modules to install them
into the chassis. Use the installation instructions for your power supply
(1746-P1, -P2, -P3, -P4, or -P5) to attach it to your chassis.
ATTENTION:
Important: Series B chassis have a 1MΩ resistor between logic ground and
chassis ground. When using a 1746-P3 dc power supply, follow the grounding
instructions provided with the power supply to avoid unwanted potentials across
the logic ground of the SLC processor.
+ 24V DC
DC NEUT
CHASSIS GROUND
1746-P3
Keep the connector plug on the left side-connector of
the chassis if you are not connecting chassis together.
Remove the protective label from the top of the
power supply before applying power.
Internal
Connection
Controller
Logic Ground
Chassis Ground
Earth
Ground
Installation Instructions
SLC 500 Modular Chassis
1746-A4, -A7, -A10, -A13 Series B
20292
SLC Chassis, Series B
9