Wire The Removable Terminal Block - Allen-Bradley ControlLogix 1756-PLS Installation Instructions Manual

Wire the Removable Terminal Block

Separate RTBs connect wiring to each section on the module. Wire each RTB
before installing it onto the module. Use a 5/16 inch (8mm) maximum flat-bladed
screwdriver.
When you connect or disconnect the Removable Terminal Block
WARNING
(RTB) while 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.
Choosing Cables
Shielded cable is required when wiring the resolver. We recommend using Alpha
cable # 6054C to wire the resolver RTB.
We recommend using nonshielded cable to wire the I/O portions of this module.
However, single conductor shielded cable should be used in extremely noisy
environments. The RTB terminations can accommodate 14-22 gauge wire.
Connect Grounded End of the Cable
1. Prepare one end of the cable for grounding.
A. Remove a length
of cable jacket
from the
connecting cable.
2. Ground the drain wire. We recommend grounding the drain wire at the field
device as shown below.
Field
Device
Allen-Bradley Auto
3. Connect the insulated wires to the field device.
ControlLogix Programmable Limit Switch Module
B. Pull the foil shield
and bare drain
wire from the
insulated wire.
Drain wire
C. Twist the foil shield
and drain wire
together to form a
single strand.
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Publication 1756-IN594A-EN-P - November 2003
9
D. Attach a ground
lug and apply heat
shrink tubing to the
exit area.
20104-M