INTRODUCTION
WBPEEUI250016A1
3 - 1
SECTION 3 - INSTALLATION
INTRODUCTION
This section explains what must be done before placing any
process control unit interface modules into operation. Read,
understand, and complete the steps in the order they appear
before operating the modules.
SPECIAL HANDLING
Observe these steps when handling electronic circuitry:
NOTE: Always use Elsag Bailey's field static kit (part number
1948385?1 - consisting of two wrist straps, ground cord assembly,
alligator clip, and static dissipating work surface) when working with
the modules. The kit is designed to connect the technician and the
static dissipating work surface to the same ground point to prevent
damage to the modules by electrostatic discharge.
1.
Use Static Shielding Bag.
Keep the modules in the static
shielding bag until you are ready to install them in the system.
Save the packaging for future use.
2.
Ground Bags Before Opening.
Before opening a bag con-
taining an assembly with semiconductors, touch it to the
equipment housing or a ground to equalize charges.
3.
Avoid Touching Circuitry.
Handle assemblies by the
edges; avoid touching the circuitry.
4.
Avoid Partial Connection of Semiconductors.
Verify
that all devices connected to the module are properly grounded
before using them.
5. Ground Test Equipment.
6.
Use Antistatic Field Service Vacuum.
Remove dust from
the module if necessary.
7.
Use a Grounded Wrist Strap.
Connect the wrist strap to
the appropriate grounding plug on the power entry panel. The
grounding plug on the power entry panel is connected to the
cabinet chassis ground.
8.
Do Not Use Lead Pencils To Set Dipswitches.
To avoid
contamination of dipswitch contacts that can result in unnec-
essary circuit board malfunction, do not use a lead pencil to
set a dipswitch.