Remove Power; Selecting A Location; Section 2.4 Mounting - Spectrum Controls Micro850 User Manual

2.3.3 Remove Power

2.3.4 Selecting a Location

Section 2.4
Mounting
Remove power before removing or inserting this module.
WARNING
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:
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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.
Keeping module free of debris and avoiding overheating:
WARNING
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Chapter 2: Installation and Wiring
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. Such arcing causes
excessive wear to contacts on both the module and its
mating connector, and may lead to premature failure.
Do not remove protective debris strip until after the
module and all other equipment near the module is
mounted, and the wiring is complete.
Once wiring is complete, and the module is free of
debris, carefully remove protective strip.
Failure to remove strip before operating can cause
overheating.
User's Manual Pub. 0300306-01 Rev. A
2-3