Rockwell Automation 1756-HSC ControlLogix High Speed Counter Module - Manual (Page 44)

Rockwell Automation Publication 1756-UM007C-EN-P - November 2011
44 Install and Wire the ControlLogix High-speed Counter Module
Wiring the Module
Before wiring the module, adhere to the following wiring guidelines.
Connect the Wires
You can use an RTB to connect wiring to your module. For most applications,
we recommend using Belden 8761 cable. The RTB terminations can
accommodate 0.33...1.3 mm² (22...16 AWG) shielded wire. Before wiring the
RTB, you must connect ground wiring.
Follow these directions to ground the wiring to the RTB.
1. Remove a length of cable jacket from the connecting cables.
2. Pull the foil shield and bare the drain wire from the insulated wire.
3. Twist the foil shield and the drain wire together to form a single strand.
4. Attach a ground lug and apply heat shrink tubing to the exit area.
WARNING 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
If multiple power sources are used, do not exceed the specified
isolation voltage.
ATTENTION
When using the 1756-TBCH, do not wire more than two
0.33...1.3 mm² (22...16 AWG) conductors on any single terminal.
Use only the same size wires with no intermixing of solid and
stranded wire types.
When using the 1756-TBS6H, do not wire more than 1
conductor on any single terminal.
IMPORTANT
We recommend you ground the drain wire at the field-side. If
you cannot ground at the field-side, ground at an earth-ground
on the chassis as shown below.
20104-M
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