Rockwell Automation 6181P, Руководство пользователя

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44 Rockwell Automation Publication 6181P-UM003A-EN-P - May 2014
Chapter 4 Component Replacement
Electrostatic Discharge
Precautions
Follow the precautions listed below:
•
Transport the computer and replacement parts in static-safe containers,
such as conductive tubes, bags, or boxes.
•
Keep electrostatic-sensitive parts in their containers until they arrive at the
designated static-free work area.
•
Cover the designated work area with approved static-dissipating material:
–
Use an antistatic wrist strap connected to the work surface.
–
Use properly grounded tools and equipment.
•
Keep the designated work area free of nonconductive materials, such as
ordinary plastic assembly aids and foam packing.
•
Avoid touching pins, leads, or circuitry.
•
Always hold components with a printed circuit board (PCB) by its edges
and place it with the assembly side down.
Pre-configuration
Follow these steps before removing the cover or replacing a hardware component.
1.
Shut down the computer and all peripherals connected to it.
2.
Disconnect all cables from power outlets to avoid exposure to high energy
levels.
If necessary, label each cable to expedite reassembly.
3.
Disconnect telecommunication cables to avoid exposure to a shock hazard
from ringing voltages.
ATTENTION: Electrostatic discharge (ESD) can damage static-sensitive devices
or microcircuitry:
• Disconnect all power before working on the computer as detailed in Voltage
Precautions on page 43 .
• Observe proper packaging and grounding techniques to prevent damage.
IMPORTANT
When installing hardware or performing maintenance procedures that require
access to internal components, we recommend that you first back up all
computer data to avoid loss.
ATTENTION: Make sure to read and understand all installation and removal
procedures before you begin configuring the computer hardware.