Allen-Bradley CompactLogix 1769-L23E-QB1B - Wire the I;O Removable Terminal Blocks

CompactLogix Controller 17
Rockwell Automation Publication 1769-IN082C-EN-P - February 2013
Wire the I/O Removable Terminal Blocks
To begin wiring your embedded I/O removable terminal blocks, loosen the screws at the top and
bottom of the removable terminal block and remove the removable terminal block from the
packaged controller.
WARNING:
• When you connect or disconnect the Removable Terminal Block (RTB) with field side power
applied, an electrical arc can occur. This could cause an explosion in hazardous location
installations.
• If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur.
This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
ATTENTION:
• Mis-wiring the removable terminal blocks to an AC power source causes damage to the
packaged controller.
• Be careful when stripping wires. Wire fragments that fall into an removable terminal block
could cause damage at power up. Once wiring is complete, ensure the removable terminal
blocks are free of all metal fragments.
• When wiring I/O removable terminal blocks, tighten terminal screws with care. Excessive
tightening can strip a screw.
I/O Removable Terminal Block Wire Size and Screw Torques
Wire Type Wire Size Terminal Screw
Torque
Retaining Screw
Torque
Solid or
stranded
Cu: 75
°C (167 °F) 0.5... 0.8 mm
2
(20...18 AWG)
0.68 Nm (6 lb•in) 0.46 Nm (4.1 lb•in)
CompactLogix L23E
31761-M
Allen-Bradley Parts