Operating instructions
4-2 Operating Instructions
2. PC40 Parameters Overview
Memory
Channel
P/N 108 389A
57
·28 1/93
Parameters are the choices and values that you have to program into
the
PC40. These choices and values, when properly se
t,
will give you
the material bead pattern(
s}
you want on the substrate.
The following paragraphs provide information on the different decisions
involved in setting each parameter at each selection
level. The initial
display for each selection level is shown.
lAB
C D
XI
Definition
Four registers or locations in the PC40 microcomputer where patterns
are saved.
Decision Factor
• number
of
patterns to store
The number
of
memo
ri
es you select depends on
how
many separate
patterns you plan to use. You can store from one to four patterns each
consisting of
up
to
four independent bead sequences (channels}.
11
2 3 4
xl
Definition:
The electronic timing circuitry in the PC40 that directs the output
of
one
or more gun
solenoids.
Decision Factors
• the number
of
different bead sequences
be
ing applied to a
substrate within a given pattern, and/or
• the number
of
gun solenoids that are needed to put down that
pattern, and/or
Bead Sequences - Figure
4.1
shows the bead sequence
of
a pattern. If
beads in parallel sequences have the same length, same spacing
between them, and same gun-to-gun response time, only one
channel
is needed to produce the pattern. If any one
of
these factors is different
from sequence to sequence, more than one channel
will be needed to
produce the pattern.
Solenoids - Any number
of
solenoids can
be
fired by one channel as
long as the combined gun solenoid demands
do
not exceed 1 amp.
C)
Nord
son
Corporation 1993
All Roghts
Reserv
ed