General precautions – Rockwell Automation 1395 Multi-Comm Hardware/Software User Manual

Page 7

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Chapter 1

Before You Begin

1–4

General Precautions

In addition to the precautions listed throughout this manual, the following
statements which are general to the system must be read and understood.

CAUTION: This drive may contain ESD (Electrostatic
Discharge) sensitive parts and assemblies. Static control
precautions are required when installing, testing, servicing or
repairing this assembly. Component damage may result if ESD
control procedures are not followed. If you are not familiar
with static control procedures, reference A-B publication
8000-4.5.2, Guarding Against Electrostatic Damage or any
other applicable ESD Protection Handbook.

!

!

WARNING: Severe injury or death can result from electrical
shock, burn, or unintended actuation of controlled equipment.
Hazardous voltages may exist in the cabinet even with the
circuit breaker in the off position. Recommended practice is to
disconnect and lock out control equipment from power sources
and discharge stored energy in capacitors, if present. If it is
necessary to work in the vicinity of energized equipment, the
safety related work practices of NFPA 70E, Electrical Safety
Requirements for Employee Workplaces, must be followed. DO
NOT work alone on energized equipment!

!

WARNING: Potentially fatal voltages may result from
improper usage of oscilloscope and other test equipment. The
oscilloscope chassis may be at a potentially fatal voltage if not
properly grounded. If an oscilloscope is used to measure high
voltage waveforms, use only a dual channel oscilloscope in the
differential mode with X 100 probes. It is recommended that
the oscilloscope be used in the A minus B Quasi-differential
mode with the oscilloscope chassis correctly grounded to an
earth ground. Refer to equipment safety instructions for all test
equipment before using with the 1395.

!

CAUTION: The CMOS devices used on the control circuit
boards can be destroyed or damaged by static charges. If
personnel will be working near static sensitive devices, they
must be appropriately grounded.

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