Rockwell-automation 1769-IG16 Compact TTL Input Module Manuel d'utilisateur télécharger pdf (Page 3)

Compact TTL Input Module 3

Publication 1769-IN079A-EN-P - May 2006

Prevent Electrostatic Discharge

Remove Power

ATTENTION

Electrostatic discharge can damage integrated circuits or semiconductors if you

touch bus 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 bus 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.

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. Worn contacts may create electrical resistance.

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Rockwell-automation 1769-IG16 Compact TTL Input Module Manuel d'utilisateur Page 3