Rockwell Automation AB quality Allen-Bradley 1746-INT4 User Manual page 33

Ungrounded End at Source Device
Wires
Remove drain wire and
9.5 mm
foil shield at casing.
(3/8 in.)
Keep the length of
unshielded wires as
short as possible.
7. At the source-end of cables from mV devices:
– remove the drain wire and foil shield.
– apply shrink wrap as an option.
– connect to mV devices keeping the leads short.
If noise persists, try grounding the opposite end of the cable,
IMPORTANT
instead. (Ground one end only.)
Cable Preparation and Connections to Minimize Electrical Noise Interference
Cables
Connect I/O chassis bolt
to earth ground.
Limit braid length to 304.8 mm
(12 in.) or less. Solder braid to lug
attached to bottom row of I/O
chassis bolts.
Grounded End at I/O Chassis
9.5 mm (3/8 in.)
Keep the length of
unshielded wires as
short as possible.
9.5 mm (3/8 in.)
Publication 1746-UM614B-EN-P - September 2007
Install and Wire the Module
Terminal Block
Signal
Wires
Solder drain
wires to braid
at casings.
Cables
33