Spectrum Controls Micro800 2085sc-IF16C, User Manual, Page: 21 / 60

Chapter 2: Installation and Wiring 2-3
User’s Manual Pub. 0300306-02 Rev. B
2.3.2 Prevent Electrostatic Discharge
WARNING
Electrostatic discharge can damage integrated circuits or semiconductors if
you touch I/O expansion port connector pins or the terminal block on the
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 port connector or connector pins.
•
Do not touch circuit components inside the module.
•
If available, use a static-safe workstation.
• When it is not in use, keep the module in its static-shield
bag.
2.3.3 Remove Power
WARNING
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.
•
Causing an electrical arc. Electrical arcing causes excessive wear
to contacts on both the module and its mating connector and may
lead to premature failure
.
2.3.4 Selecting a Location
Reducing Noise
Most applications require installation in an industrial enclosure to reduce the
effects of electrical interference. Analog inputs are highly susceptible to
electrical noise. Electrical noise coupled to the analog inputs will reduce the
performance (accuracy) of the module. Group your modules to minimize adverse
effects from radiated electrical noise and heat. Consider the following conditions
when selecting a location for the analog module. Position the module:
•
Away from sources of electrical noise such as hard-contact switches,
relays, and AC motor drives.
•
Away from modules which generate significant radiated heat. Refer to
the module’s heat dissipation specification.
In addition, route shielded, twisted-pair analog input wiring away from any high
voltage I/O wiring.