Introduction; Special Handling - ABB Symphony Harmony Series Instructions Manual

Installation

Introduction

Special Handling

WBPEEUI210509A0
This section contains information needed when installing the
MPSIII system. It includes information on special handling,
unpacking and inspection, safety considerations, and wiring
considerations.
Following these topics is an installation sequence flowchart
that guides personnel, seeking to perform a specific installa-
tion task, to the proper procedure needed to perform that task.
The MPSIII system contains sensitive electronic circuitry. This
circuitry contains semiconductor devices that are subject to
damage by static electricity.
A static field kit is available for personnel working on compo-
nents containing semiconductor devices. It contains two wrist
straps, a ground cord assembly, an alligator clip, and a static
dissipating work surface. The intention is to connect the tech-
nician and the static dissipating work surface to the same
ground point to prevent electrostatic discharge damage to the
static sensitive devices.
When handling static sensitive devices:
1. Most assemblies with semiconductor devices come in a
special antistatic bag. Keep the assembly in the bag as much
as possible whenever the assembly is not installed.
2. Remove assemblies containing semiconductor devices from
their antistatic container only under certain conditions:
a. When at a static-free workstation or when the bag is
grounded at a field test sight.
b. Only after neutralizing the conductive area of the
container.
Section 3
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