AB Quality 1756-ENBT ControlLogix, Руководство по установке

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2 ControlLogix Voltage/Current Output Module
Publication 1756-5.42 - September 1999
Prevent Electrostatic Discharge
Removal and Insertion Under Power (RIUP)
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.
ATTENTION
!
This module is designed so you can remove and insert it
under backplane power and field-side power. When you
remove or insert a module while field-side power is applied,
you may cause an electrical arc. An electrical arc can cause
personal injury or property damage because it may:
•
send an erroneous signal to your system’s field devices,
causing unintended machine motion or loss of process
control.
•
cause an explosion in a hazardous environment.
Repeated electrical arcing causes excessive wear to contacts
on both the module and its mating connector. Worn contacts
may create electrical resistance.