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Spectrum Controls 1756sc-OF8H Series A User Manual

Page 23

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Chapter 2: Installing And Wiring Your Module 9

removed, use the write-on label located on the side of the terminal blocks
to identify the module location and type.

Preventing
Electrostatic
Discharge

This module is sensitive to electrostatic discharge.

!

ATTENTION: Electrostatic discharge can damage integrated circuits or

semiconductors if you touch backplane connector pins. 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 backplane connector or connector pins
· Do not touch circuit components inside the module
· If available, use a static-safe work station
· When not in use, keep the module in its static-shield box

Removal and Insertion
Under Power

These modules are designed to be installed or removed while chassis
power is applied.

!

ATTENTION: When you insert or remove a module while backplane power is

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 or loss of process control.

· causing an explosion in a hazardous environment.

Repeated electrical arcing causes excessive wear to contacts on both the module and
its mating connectors. Worn contacts may create electrical resistance that can affect
module operation.

This manual is related to the following products: