Allen-Bradley Compact 1769-IR6, User Manual

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Publication 1769-UM005A-EN-P
Installation and Wiring 3-3
Prevent Electrostatic Discharge
Remove Power
Selecting a Location
Reducing Noise
Most applications require installation in an industrial enclosure to reduce
the effects of electrical interference. RTD inputs are highly susceptible to
electrical noise. Electrical noise coupled to the RTD inputs will reduce the
performance (accuracy) of the module.
ATTENTION
!
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch analog I/O module bus
connector pins or the terminal block on the input
module. Follow these guidelines when you handle the
module:
•
Touch a grounded object to discharge static potential.
•
Wear an approved wrist-strap grounding device.
•
Do not touch the bus connector or connector pins.
•
Do not touch circuit components inside the module.
•
If available, use a static-safe work station.
•
When it is not in use, keep the module in its
static-shield box.
ATTENTION
!
Remove power before removing or inserting this module.
When you remove or insert a module with power
applied, an electrical arc may occur. An electrical arc can
cause personal injury or property damage by:
•
sending an erroneous signal to your system’s field
devices, causing unintended machine motion
•
causing an explosion in a hazardous environment
•
Electrical arcing causes excessive wear to contacts on
both the module and its mating connector and may
lead to premature failure.
AB PLCs