Abbott Aim, Aim Plus User manual
ABBOTT
6
aim”
ABBOTT
aim
Technical
Service
Manual
For
use
with
the
following
13038-04,
13967-04,
Abbott
Abbott
AIM
AIM
list
Plus
plus
numbers:
ABBOTT
NORTH
USA
LABORATORIES
CHICAGO,
IL
60064
430-600035-002
(Rev.
11/99)
©
Copyright
This
document
Laboratories
sale.
Any
whole
or
1999
party
in
part
and
retains
using
nor
the
subject
all
the
exclusive
this
document
disclose
it
to
matter
rights
accepis
others
Abbott
Laboratories
disclosed
of
dissemination,
it
in
without
herein
confidence,
the
written
are
proprietary
reproduction,
and
agrees
consent
of
Abbott
AllRights
information.
manufacture,
not
Reserved
to
duplicate
Laboratories.
Abbott
and
it
in
List
of
Changes
Part
Number
Description
of
Change
Remove
Destroy
and
Pages
Insert
Change
Pages
430-600035-001
(Rev.
12/96)
430-600035-002
(Rev.
10/99)
Original
Second
Section
checklist
Added
performing
encoder
torque
alternate
Section
February
Section
RTV
General:
printer.
issue.
issue.
5:
(1)
Updated
to
match
alternate
the
motor
test,
and current
brake.
Revised
results.
6:
Added
29 on leap
7:
Added
sealing.
Added
pump
inspection
current service
PVT
procedures
test,
servo
supply
PVT
Data
procedure
years.
alternate
Seiko
for
instructions
DPU414
training.
for
calibration,
test
Form
setting
(2)
without
to
a
add
for
as
compatible
N/A
All
N/A
All
AIM/AIM
Plus
Technical
Service
Manual
i
430-600035-002
(Rev.
11/99)
Changes
This
page
intentionally
left
blank.
430-600035-002
(Rev.
11/99)
AIM/AIM
Plus
Technical
Service
Manual
Table
of
Contents
Section
1
Introduction
1.1
1.2
1.3
Scope
AIM
1.2.1
1.2.2.
Conventions
Section 2 Warranty
Section 3 System
Section 4 Theory
4.1
General
4.2
Circuit
4.3
Detailed
4.3.1
4.3.2
.
and
AIM
Plus
Pump
Description
AIM
and
.
Operating
of
Operation.
Description
Block
Diagram
Circuit
CPU
System
4.3.1.1
4.3.1.2
4.3.1.3
4.3.1.4
4.3.1.5
4.3.1.6
4.3.1.7
4.3.1.8
4.3.1.9
4.3.1.10
4.3,1.11
4.3.21
4.3.2.2
4.3.2.3
4.3.2.4
Microprocessor
EPROM
Microprocessor
RAM
Time
Display
Encoder
Backup
Keypad
Bolus
Serial
Analog
Power
Audible
Air
Overview
AIM
Plus
Manual
.
Description
. . . . .
Of
Day
Interface
Microprocessor
Interface
Switch
Interface
Circuits
Circuits
Alarm
and
Occiusion
Motor
Drive
.
.
Differences
.
(CPU)
.
Supervisory
Clock
Circuit.
.
Interface
.
Optics
Circuit
.
.
.
.
.
.
Interface
.
o.
Circuit
. -
4-10
4-10
4-10
4-11
4-11
4-11
4-12
4-13
4-13
Section 5 Maintenance
5.1
Cleaning
5.2
Inspecting
5.2.1
AIM/AIM
Plus
Technical
Service
Manual
and
the
the
Pump
Service
Pump
.
Pump
and
Inspection
Tests
Accessories
.
. .
o.
.
430-600035-002
(Rev.
5-1
5-2
5-4
5-4
11/99)
Contents
Section 6 Troubleshooting
6.1
Technical
6.2
Setting
6.3
Troubleshooting
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
64
Software
Section 7 Replaceable
7.1.
Spare
7.2
Safety
7.3.
Pump
74
Pump
7.4.1.
75
Back
7.5.1
7.6
Optics
7.7
Motor
7.8
Latch
7.8.1
7.9
PCB
7.9.1
7.10
Front
7.10.1
7.10.2
740.3
7.10.4
7.10.5
7.10.6
7.11
Display
7.11.1
7.11.2
Assistance
February
Alert
Alarm
6.3.2.1
6.3.2.2
Servo
Troubleshooting
Port
Assignments
IC
Location
Diagnostic
Parts
Parts
Price
Precautions
Disassembly
Reassembly
Alternate
Case
Assembly
AIM
Beeper
Assembly
Assembly.
Assembly.
Latch
Assembly
ALM
Plus
Case
Assembly
Keypads
Display
Front
Bolus
AC
Power
Battery
Module
FFC
Spacer
.
29
on
Tables.
Messages.
Codes
Function
Hardware
Calibration
Codes
Tests
and
List
.
Procedure
Procedure.
Assembly
.
Spring
Case
Jack.
.
Jumper
.
.
Beeper.
.
Window
Labels
Jack
Connector
.
Cushion
. .
Leap
Years
Alarms
and
Software
Failure
001-007
Codes
Problems
Repairs
.
.
instructions
.
Cable
.
.
and
-
and
Alarms
.
008-143
Solutions
-
for
RTV
，
Jumper
.
.
o.
Sealing
6-1
6-1
6-1
6-2
6-2
64
6-5
6-6
6-14
6-15
6-21
6-24
6-26
7-1
7-1
7-1
7-2
7-5
7-8
7-14
7-12
7-13
7-14
7-15
7-16
7-18
7-18
7-19
7-19
7-20
7-20
7-21
7-21
7-22
7-23
7-24
7-24
AIM/AIM
Plus
Technical
Service
Manual
v
430-600035-002
(Rev.
11/99)
Contents
Section 8 Specifications
Section9
Drawings
.
.
.
430-600035-002
(Rev.
11/99)
vi
AIM/AIM
Plus
Technical
Service
Manual
List
of
Figures
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
4-1.
Assemblies
4-2.
Motor
4-3.
Motor
4-4.
Optics
4-5.
Latch
4-6.
Circuit
5-1.
Cartridge
5-2.
Basic
5-3.
Optics
7-1.
Back
7-2.
Front
7-3.
Motor,
7-4.
AIM
7-5.
Pump
7-6:
RTV
7-7.
RTV
7-8.
RTV
7-9.
Motor
7-10.
Back
7-11.
AIM
7-12.
Optics
7-13.
Motor
7-14.
Latch
7-15.
PCB
7-16.
Front
7-17.
Bolus
7-18.
Battery
7-19.
Display
9-1.
AIM
9-2.
AIM
9-3.
AIM
9-4.
AIM
9-5.
AIM
9-6.
AIM
9-7.
AIM
9-8.
AIM
9-9.
AIM
9-10.
AIM
.
Frame
Assembly
Assembly
Assembly
Block
Channel
Equipment
Test
Case
Case
Optics,
and
AlM
Assembly
Sealing
Sealing
Sealing
Frame
Case
Beeper
Carrier
Assembly
Assembly
Front
Case
and
Connections
Module
Analog
Microprocessor
Power
PC
Board,
PC
Board,
Plus
Analog
Plus
Microprocessor
Plus
Power
Plus
PC
Plus
Detail
Diagram
Detail
Setup
Block
Placement
Screws
Connections.
and
Plus
PCBs
for
Printer
for
Side,
for
Motor
Seal.
Labels
Installation
to
Motor
to
to
View
Keypads
AC
Power
Installation
Schematic
and
Miscellaneous
Front
Back
Schematic
and
Board,
PC
Board,
.
.
Beeper
Connections
to
Back
Port
Bottom
Frame
.
,
Frame
Motor
Frame
Motor
Frame
and
Labels
Jack
Installation.
.
(CPU)
Schematic.
Side
Side
.
(CPU)
Miscellaneous
Front
Side
Back
Side
.
o.
Cases
Case
.
.
.
.
Circuitry
Schematic
Circuitry
.
.
.
. . . .
Schematic.
.
.
. . .
Schematic
. .
..
. . .
.
.
4-1
4-2
4-3
4-3
4-4
46
5-3
5-8
5-14
7-2
7-3
7-4
7-5
7-6
7-8
7-8
7-9
.
7-9
7-11
7-12
7-13
7-14
7-15
7-17
7-20
7-21
7-22
7-23
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
Fold-out
AIM/AIM
Plus
Technical
Service
Manual
vii
430-600035-002
(Rev.
11/99)
Figures
This
page
intentionally
left
blank.
430-600035-002
(Rev.
11/99)
viii
AIM/AIM
Plus
Technical
Service
Manual
List
of
Tables
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
1-1.
AIM
and
1-2.
AIM
and
5-1.
Cleaning
6-1.
AIM/AIM
6-2.
AIM/AIM
6-3.
AIM/AIM
6-4.
Servo
Calibration
6-5.
Troubleshooting
6-6.
AIM/AIM
6-7.
AIM/AIM
AIM
Plus
AIM
Plus
Solutions.
Plus
Alert
Plus
Alarm
Plus
Alarm
Failure
.
Plus
Port
Plus
IC
Location
Hardware
Software
Differences
Messages
Codes
Codes
001 - 007.
008 - 143.
Codes
o
Assignments
Codes
Differences
..
.
.
.
.
.
.
1-3
1-3
5-2
6-3:
6-5
6-14
6-15
6-21
6-24
AIM/AIM
Plus
Technical
Service
Manual
ix
430-600035-002
(Rev.
11/99)
Tables
This
page
intentionally
ieft
blank.
430-600035-002
(Rev.
11/99)
AIM/AIM
Plus
Technical
Service
Manual
Po
ㄴㄴ
Section
1
Introduction
11
Scope
This
Technical
Infusion
pumps.
analog
It
is
Manager
It
is
and
organized
ロ
Section 1 Introduction
Section2
ロロ
Section 3 System
Section 4 Theory
Service
(AIM™)
intended
digital
microprocessor-based
into
Warranty
Manual
for
the
the
following
Operating
of
and
trained
Operation
presents
Abbott
technician
nine
sections:
Manual
technical
Ambulatory
experienced
equipment.
information
Infusion
Manager
in
analysis,
about
the
Abbott
Plus
(AIM®
troubleshooting
Ambulatory
Plus)
infusion
and
repair
of
ロロ
Section 5 Maintenance
Section 6 Troubleshooting
ロロ
Section 7 Replaceable
Section 8 Specifications
ロロ
Section9
Note:
In
AIM
Plus
Note:
figures
depending
Ifa
contact
Figures
may
problem
Abbott
this
unless
Drawings
manual,
otherwise
are
rendered
not
exactly
on
the
configuration
in
the
infusion
Laboratories
the
reflect
and
Parts
terms
“pump”
specified.
as
graphic
the
product.
of
system
operation
Technical
Service
and
Tests
Repairs
and
“pumps”
representations
Display
the
pump
in
use.
cannot
Support
Operations
refer
to
to
approximate
screens
be
and
resolved
(see
all
configurations
the
actual
touchswitch
using
Section
labels
the
information
6.1,
Technical
of
both
product;
may
vary
in
Assistance).
the
AIM
therefore,
slightly,
this
manual,
and
AIM/AIM
Plus
Technical
Service
Manual
1-1
430-600035-002
(Rev.
11/99)
Section
12
1,
Introduction
AIM
The
noted
and
pumps
in
Section
AIM
share
1.2.1
Pump
The
intravenously
over-pressure
parameter
endangering
The
battery
through a 24-key
16-character
dedicated
and
Description
Abbott
pump
of
AIM
monitoring,
the
is
powered
packs,
by
cartridges
the
cartridge
or
(occlusion)
or
Plus
the
same
design
1.2.2,
AIM
and
AIM
epidurally.
alarm,
and
patient.
by
four
an
AC
power
keypad
4-line
alphanumeric
to
deliver
assure
Overview
and
and
AIM
Plus
are
Special
an
numerous
1.5V
AA
supply.
on
the
front of
fluids
accurate
functionality
Plus
Differences.
single-channel
other
safety features
air-in-line
failure
alkaline
The
liquid
through
fluid
alarm, a back-up
backup
batteries,
pump
the
unit.
crystal
rotary
delivery.
than
the
hardware
infusion
modes
optional
is
microprocessor-based
The
display
peristaltic
pumps
integrated
to
state
into
(safety)
prevent
nickel
of the
(LCD)
pumping
designed
metal
pump
module.
action.
and
software
to
deliver
the
design
microprocessor,
single
point
failures
hydride
and
is
rechargeable
is
programmed
displayed
The
unit
Control
differences
fluids
include
an
motor
from
using
a
requires
of the
pump
The
pump
detects
specification
the
cartridge
proceed
deactivated,
The
pump
Variable
The
pump
place
with
The
pump
pump
is
cables
For
specific
AIM
Plus
occlusion
exceeds.
until
the
refer
has
Time
contains a time-of-day
the
contains a printer
connected
(depending
instructions
System
occlusions
the
air
is
to
the
several
Delivery
pump
can
to
one
on
printer
Operating
and
air
alarm
pressure,
pre-set
cleared
pump’s
and
(the
System
programming
Continuous
be
reviewed
connector
of
the
two
choice)
regarding
Manual.
in
the fluid
the
sensitivity
air
sensitivity
cartridge.
instrument
limit,
Operating
modes:
Delivery.
clock
and
history
on
the
LCD
that
also
recommended
are
available
pump
operation,
sounds
the
pump
setting
Manual
TPN,
Pain
storing
display,
allows
printout
compatible
from
Abbott
refer
to
Ifthe
pressure
an
alarm
will
alarm,
is
variable,
for
more
Management,
capability.
along
with time
of
this
printers.
as
accessory
the
AIM
System
at
the
cartridge
and
stops
delivery.
stop
delivering
and
for
the
AIM
information).
Intermittent
Significant
and
history
Two
different
events
date
of
information
special
items.
Operating
exceeds
Plus
the
If
air
and
not
can
be
Delivery,
that
take
occurrence.
when
the
printer
Manual
or
the
in
430-600035-002
(Rev.
11/99)
1-2
AIM/AIM
Plus
Technical
Service
Manual
1.2.2
AIM
The
and
AIM
Beeper
Function
Bottom
AIM
and
Item
Keypad
Case
AIM
Plus
Plus
Differences
have
the
following
Table
1-1.
Piezo
element
bottom
approximately 4 KHz
Four
4-450z.
No
beeper
case;
raised
actuation
molded
sound
AIM
and
AIM
mounted
frequency
profile
switches
force
recess;
hole
significant
AIM
Plus
on
to
emit
hardware
Hardware
the
with
differences:
Differences
Audio
transducer
frequency
protection
(R135
resistor
transducer
100K,
Three
4-150z.
flat
Molded
installation
for
the
approximately 2 KHz;
diode
replaced
value
oscillator
1%
to
raised
actuation
profile
and
recess
of
beeper
(AIM
PCB)
AIM
Plus
mounted
added
with
15S353
changed
circuit
200K,
1%)
profile
switches
force;
6-200z.
(0.020
kapton
insulator;
Plus
beeper
Section
1,
Introduction
on
the
to
beeper
diode)
in
backup
(R95
from
with
STOP
key
actuation
inch)
force
aids
in
no
mounted
PCB;
circuit
and
audio
has
hole
on
The
AIM
and
AIM
Plus
have
the
Table
Air
Rate
End
Dose
interrupt
Program
Change
Lock
Number
Item
Alarm
Sensitivity | Air
Change
of
Frequency
Sequence
Lock
Infusion
Messages
Review
Mode
New
tates
END
Dose
Number
Intermittent
Program
unlocked
When
altered
AIM
1-2.
alarm
feature
to
be
OF
INFUSION
frequency
of
changes
are
is
13038,
following
AIM
and
can
be
turned
added
locked
increased
message
and
Variable
review
not
at
power-on
are
displayed
AIM
significant
AIM
Plus
Significant
completely
that
allows
in
Pain
Management
alert
added
from
screens
programs
required
without
being
made
Plus
is
13967
software
Software
AIM
Plus
off
if
air
programmable
programs
fo
TPN
and
24
to
96
hours
displayed
if
pump
program
for a program
is
off
review
to a program,
(product
differences:
Differences
Differences
eliminating
ranges
Intermittent
less
only
list
numbers)
filter
for
continuous
programs
in
Intermittent
interruption
than 5 minutes;
those
screens
in
use
programs
reduced
pump
that
and
can
can
bolus
in
be
be
AIM/AIM
Plus
Technical
Service
Manual
1-3
430-600035-002
(Rev.
11/99)
Section
1,
Introduction
13
Conventions
The
following
С
Touchswitches
[ENTER]
Q
Screen
beeps
conventions
displays
sound
are
to
select a 100
referenced
and
the
are
used
described
mL
in
INITIALIZE
throughout
in
all
caps
and
container
the
text
size.”
are
NVRAM
this
manua!:
enclosed
in
all
OR
in
caps,
USE
brackets,
e.g.,
“When
ARROWS
e.g.,
“Press
resetting
display
[1], [0],
is
[0]
complete
returns.”
and
two
Throughout
as
follows:
this
WARNING:
A
warning
Failure
CAUTION:
damage
Note: A note
to
observe a warning
or
manual,
contains
A
caution
failure.
highlights
warnings,
special
cautions,
safety
is
contains
information
information
and
notes
emphasis
potentially
that
helps
explain a concept
are
used
and
life
threatening.
that
could
to
emphasize
-
must
be
prevent
or a procedure.
important
observed
irreversible
at
information
all
times.
equipment
430-600035-002
(Rev.
11/99)
1-4
AIM/AIM
Plus
Technical
Service
Manual
|
ЗесНоп
2
Warranty
Subject
warrants
in
Abbott
purpose,
Purchaser’s
no
contract,
event
business,
The
used
or
to
the
that
the
material
and
makes
or
any
exclusive
event
shall
Abbott’s
negligence,
shall
Abbott
revenue,
foregoing
other
than
reliability,
or
terms
product
workmanship
no
other
other
matter.
remedy
strict
be
or
profits.
warranty
in
accordance
in
the
and
conditions
shall
conform
under
warranties,
shall
liability
liable
shall
event
arising
liability,
for
incidental,
Warranty
be
void
with
the
serial
herein,
to
Abbott’s
normal
express
be,
at
Abbott’s
out
tort,
or
product
in
the
product
or
lot
Abbott
Laboratories,
standard
use
and
service
or
implied,
as
option,
of
any
cause
whatsoever
otherwise)
consequential,
returned
event
manuals
number
the
product
so
exceed
as,
has
herein
specifications
for a period
to
merchantability,
the
repair
the
or
special
to
Abbott
has
been
in
Abbott’s
been
altered,
of
two
or
replacement
(whether
price
of
damages
must
be
misused,
judgment,
defaced,
referred
and
be
free
years
fitness
of the
such
cause
such
product,
or
losses
properly
damaged,
to
affect
or
to
as
Abbott,
from
defects
after
purchase.
for a particular
product.
be
and
or
packaged.
altered,
its
removed.
In
based
in
in
no
for
lost
or
stability
The
foregoing
or
attempts
by
an
For
purposes
other
In
providing
liability
whether
acknowledged
an
authorized
to
authorized
than
the
for
the
such
warranty
perform
representative
of
the
replacement
any
actions
person
that
agent
shall
any
preceding
parts
for
or
has
any
person
of
Abbott.
also
be
major
repair
of
Abbott
sentence,
of
accessory
repair
or
inactions
been
trained
other
than
void
in
or
other
and
“major
items
service
of
the
person
to
an
Abbott
the
event
service
using
Abbott
repair
such
of
the
product,
performing
perform
representative
any
person,
on
the
documentation
or
other
as
batteries.
such
repair
including
product
service”
Abbott
such
or
performing
the
without
and
means
shall
have
repair
or
service.
Purchaser,
having
approved
any
no
service,
It
repair
been
spare
repair
responsibility
regardless
is
understood
or
service
performs
trained
parts.
or
service
or
of
and
is
not
AIM/AIM
Plus
Technical
Service
Manual
2-1
430-600035-002
(Rev.
11/99)
Section
3
System
A
System
binder’s
contact
Operating
pockets
Abbott
for
Laboratories
Operating
Manual
convenient
is
included
reference.
Technical
with
Ifa
Support
Manual
every
AIM
copy
of
the
Operations
and
AIM
System
(see
Section
Plus
kit.
Operating
Manual
6.1,
Technical
Insert a copy
is
not
available,
Assistance).
in
this
AIM/AIM
Plus
Technical
Service
Manual
3-1
430-600035-002
(Rev.
11/99)
0
lå
Section
4
Theory
This section
construction
Front
assembly
case
Displa
module
Mylar
Washer
describes
as
shown
of
the
theory
in
Figure
Operation
of
operation
4-1,
Assemblies.
of
the
AIM/AIM
Plus.
The
pump
Battery door
Motor
has a modular
jack
power
AC
assembly
Bolus
jack
assembly
frame
seal
PCB
assembly
Back
case
assembly
.
Motor
optics
motor
latch
frame
with
assembly,
assembly,
assembly
and
(AIM
AIM/AIM
Plus
Plus
AIM
Assembly
beeper
Technical
is
mounted
Service
Manual
on
PCB)
Figure
4-1.
Assemblies
41
430-600035-002
5A-12a
(Rev.
75
11/99)
Section
41
4,
Theory
of
Operation
General
The
pump
case
conductive
front
motor
accomplished
access
constructed
connected
The
motor
part
detection
material
half
of
frame
is
accomplished
of
and
frame
of
the
pumping
systems
Description
is
constructed
to
provide
the
case
is
side
by
the
removal
spring
isolated
aligns
require
houses
mounted.
clips.
mechanism
by
Positive
from
the
cartridge
correct
the
of
removal
the
of
durable,
enhanced
Liquid
Access
retaining
of
and
optional
to
(refer
cartridge
shock
ESD
Crystal
to
screws
the
negative
power
the
drive
to
Figure
alignment
resistant
and
Display
the
electro-mechanical
located
battery
contacts
supply
motor
4-2,
EMI
door.
via
and
to
on
Motor
function
plastic
protection
(LCD)
the
Positive
are
diodes.
optical
that
contains
for
the
and
membrane
assembly
rear
case
half.
and
identified.
sensors,
Frame).
properly.
Air-in-line
or
is
pump
electronics.
contact
of
Battery
negative
The
batteries
and
completes
coated
terminals
and
with
The
keys.
The
the
pump
compartment
are
are
series
the
outer
occlusion
a
is
The
location,
within
the
equipment;
height,
motor
for
Laboratories.
The
mechanical
consists
encoder
to
torque
drive
The
mounted
magnetic
create
pulse,
gearbox
approximately
counting
of a DC
built
transform
requirements
motor
motor
assembly
on
pole
16
pulses
on
both
output
encoder
into
the
can
the
pairs.
phase 1 and
and
frame.
Dowel
that
reason,
drive
consists
brush
type,
the
motor.
relatively
necessary
be
driven
includes
motor
shaft
The
for
every
shaft
going
0.0876
mL.
pulses.
Figure
perpendicularity
pin
insertion
replacement
ofa
motor
assembly
iron-less
The
high
speed,
to
at
various
an
on
the
encoder
one
motor
gearbox
core
or
low
drive
the
speeds,
encoder,
end
of
the
contains
shaft
turn.
phase 2 outputs.
to
the
cartridge
The
pump’s
4-2.
of
the
into
of
motor
Motor
the
the
dowel
motor
motor
(refer
with
Frame
pins
transmission
torque
or
software
output
rotary
peristaltic
depending
tachometer.
motor
opposite
two
Hall
The
motor
For
each
completes
keeps
effect
64
one
determine
frame
is
frame
to
Figure
attached
of
the
motor
of
the
cartridge
on
the
rate
The
encoder
the
gearbox.
magnetic
encoder
by
16
full
turn,
track
the
location
made
by
using
must
be
4-3.
Motor
gearbox
and
contains a 64/1
motor
to
the
pumping
programmed.
consists
The
sensors,
outputs
tach
of
these
pulses
resulting
volume
50-19
of
the
specially
performed
Assembly).
integral
gear
slower
speed,
mechanism.
of a magnetic
disc
contains
in
quadrature,
16
pulses,
or
64
motor
in a fluid
of
fluid
delivered
25
cartridge
designed
by
Abbott
The
motor
Hall
effect
reduction
higher
The
disc
multiple
that
90°
out
of
turns,
the
delivery
of
by
430-600035-002
(Rev.
11/99)
4-2
AIM/AIM
Plus
Technical
Service
Manual
The
motor/transmission
shaft
extension
is
Gearbox
molded
assembly
with
splines
Figure
attaches
4-3.
to
which
Tachometer
Motor
Assembly
the
motor
mesh
with
frame
the
rotor
with
in
three
locking
the
cartridge
Section
4,
Theory
screws.
set.
of
Operation
5D-18
25
The
motor
Air
and
occlusion
chamber
another
detectors
inserted
correctly
must
within
pair
are
correctly
with
be
kept
detection
the
forms
the
mounted
into
the
detectors
clean
and
Top
Flow
direction
is
cartridge.
air
detector
in
an
the
motor
in
free
of
view
Optics
surfaces
accomplished
One
LED/phototransistor
(refer
optics
carrier
frame
and
the
optics
scratches
carrier.
which
©
(4)
Figure
4-4.
optically
to
Figure
assembly
latched,
In
order
the
could
Occlusion
Optics
Assembly
by
reflecting
pair
4-4.
Optics
within
the
sensing
to
function
impede
Occlusion
motor
chamber
light
gele
phototransistor
Detail
infrared
forms
Assembly
correctly,
light
the
occlusion
frame.
area
in
Detail).
When
all
transmission.
Bottom
LED
view
beams
offa
detector
Both
the
cartridge
the
cartridge
four
optics
Air
LED
Air
phototransistor
sensing
and
pairs
of
is
lines
up
surfaces
©
5D4
25
When
fluid
is
present
light
because
being
reflected
cartridge
the
phototransistor.
conduction
on.
is
AIM/AIM
the
Plus
Technical
the
sensing
(towards
fluid
back
chamber
Presence
the
Service
in
the
cartridge,
refracts
to
the
phototransistor.
on
state). In
Manual
most
of
behaves
of
air
thus
summary,
.
the
air
detect
the
light
from
When
as a mirror,
causes
an
4-3
phototransistor
the
phototransistor
air
is
present
reflecting
the
air
detect
air
alarm
means
receives
in
much
ofthe
phototransistor
that
relatively
into
the
sensing
light
from
the
air
detect
430-600035-002
low
the
fluid
rather
chamber
the
LED
to
go
further
phototransistor
(Rev.
levels
of
than
of
the
back
to
into
11/99)
Section
4,
Theory
of
Operation
When
phototransistor
cartridge
buildup
balloon
on
less
drive
cartridge
the
occlusion
The
cartridge
Once
no
occlusion
is
when
causes a small
expands
the
inside
of
the
reflective.
and
An
causes
is
installed
phototransistor
alarm
check
cartridge
alarm
is
the
pump
beam.
The
latch
holds
the
the
motor
and
the
cartridge
tab
on
is
the
the
indentation
cartridge next
condition
driven
turning
further
causes a pressure
balloon
sufficiently
sensing
occlusion
the
in
and
means
alarm
displayed
is
running,
cartridge
optics
such
chamber,
condition
transistor
the
pump,
an
occlusion
that
the
utilizes
whenever
the
in
assembly
on
to
the
is
present,
into
light
conduction.
buildup
segment
within
that a significant
the
balloon
therefore
to
go
further
or
the
cartridge
alarm
occlusion
the
the
occlusion
the
motor
(refer
the
side
of
blue
foil.
or
phototransistor
same
phototransistor
lightpath
alarm
frame
to
Figure
the
cartridge
is
returned
When a distal
of
the
the
cartridge
amount
filled
with
results
out
is
check
will
with
in a decrease
of
conduction
incorrectly
cartridge
is
interrupted
be
displayed
tabs
4-5.
Latch
near
to
the
fluid
inside
sensing
of
the
fluid
causes
installed
is
off.
sensor
at
two
points
Assembly).
the
rotor;
occlusion
occlusion
the
chamber
balloon
surface
the
mirror
in
occlusion
(towards
no
alarm
will
as
the
occlusion
and
the
pump
for
any
to
keep
One
the
second
phototransistor
condition
cartridge.
to
expand.
touches
surface
is
present,
This
pressure
When
the
to
become
and
plastic
phototransistor
the
off
state).
When
light
will
be
reflected
occur.
In
summary,
alarm. A check
is
not
in
the
run
interruption
it
properly
capture
point
of
the
aligned
point
is a protruding
the
the
the
no
to
an
state.
light
to
on
the
Two
the
case
The
latch
lever
and
the
Cartridge
holding
pivot
pins
hold
is
arms
outward
cartridge
tabs
hold
the
pivot
opened
locked
the
latch
pins
in
by
moving
from
the
motor
into
Figure
assembly
place.
the
thumb
frame
place
by
4-5.
onto
tab
and
moving
Ejection
Latch
Assembiy
the
motor
frame.
down
and
then
rotating
ejects a cartridge
the
thumb
tab
Once
if
one
down,
Sa
the
pump
it
back.
is
installed.
inward
is
assembled,
This
action
The
and
then
5D-2c_25
tabs
rotates
latch
is
upward.
on
the
closed
430-600035-002
(Rev.
11/99)
4-4
AIM/AIM
Plus
Technical
Service
Manual
4.2
Section
4,
Theory
of
Operation
Circuit
The
heart
MC68L1IKIFN
nonmultiplexed
microprocessor
internal
paging
memory
outputs,
circuitry.
Peripherals
bus.
Each
line
display
of
additional
are
both
is
lost,
automatic
information
A
watchdog
bus
between
a
second
interfaces
Block
of
chip
select
and
chip
map
and
which
to
the
peripheral
module,
address
chip
selected
power
is
battery
will
or
the
means
to
the
Diagram
the
Abbott
(refer
address
to
address
logic,
select
system
can
be
main
device
the
decoding
supplied
switch
be
maintained
second
two
microprocessors.
of
shutting
keypad
AIM/AIM
to
and
up
allow a reduction
logic
operation.
implemented
microprocessor
has a unique
real
time
by
the
to
the
over
microprocessor
and
Plus
Figure
data
to
is
4-6.
ports.
0.5 M byte
under
software
The
as
simple D to A converters,
are
range
clock,
the
logic
is
required
main
microprocessor’s
real-time
circuitry.
even
when
communicates
The
off the
other
motor
devices
circuit
Circuit
It
also
of
external
in
microprocessor
connected
of
256K
for
clock and
The
power
main
or
actuating
via
port
is
Block
has
self-contained
memory.
extra
hardware
control,
more
te
addresses.
byte
EPROM
addressing
I/O
chip
RAM
clock
will
is
lost.
to
function
lines.
the
main
Diagram).
The
required
flexibility
also
contains
with a minimal
the
system
The
peripherals
and
the
select.
via
an
internal
therefore
the
main
of the
second
the
alarm.
microprocessor, a Motorola
The
MC68L11K1FN
paging
self-contained
four
via a common
32K
byte
display and
When
backup
keep
microprocessor
microprocessor
The
logic
paging
for
the
system.
is
permitted
pulse
amount
are the
RAM.
real-time
the
main
lithium
running
watchdog
to
allow
logic
Since
in
the
width
modulator
of
additional
address and
16
character
A small
clock,
source
of
battery and
and
the
via the
serial
is
to
microprocessor
has
the
plus
the
system
data
by
4
amount
which
power
RAM
SPI
provide
The
motor
drive
The
drive
circuit
the
motor.
will
technology
The
delivers
clockwise
motor
actually
of
counterclockwise
direction
Outputs
microprocessor.
such
There
optics
the
voltage
interface
components
At
be
greater
is
motor
speed
two
or
speed
turn
due
from
as
battery
is a DC
and
beeper.
digital
and
io
minimize
between
low
than
utilized
phase
counterclockwise
encoder
in
reverse
to
the
and
to
analog
(such
circuit
regulates
has
the
capability
motor
the
to
is
monitored
quadrature
is
or
turns,
shaft
“windup.”
optical
The
A/D
external
DC
converter
The
6V
circuits.
power
5.0V
as
the
motor
speeds,
battery
minimize
the
voltage
with a magnetic
pulses
pulse
actually
speed
of
either
applied
circuit
to
the
information
at
the
motor
by
stepping
motor
at
high
losses
Hall
encoder
and
maintaining a constant
motor
in
counterclockwise a small
the
software
air
and
converter
power
that
in
turn
Wherever
consumption.
supplied
can
compensate
occlusion
in
the
main
supply
steps
is
converted
voltages,
up
possible,
components
detectors
microprocessor
the
battery voltage
via
There
(such
microprocessor).
up
or
stepping
voltage
the
effect
interface
depending
not
number
linear
the
may
speeds
motor
encoder
circuit,
at
the
of
for
extra
are
read
and
motor
regulators
digital
are a number
as
the
back
down
be
less
than
or
flow
driver
circuit.
integral
which
on
the
direction
gearbox
turns.
output
By
keeping
counts
by
the
also
monitors
voltages
to
approximately
to
5.0V
circuitry
display
is
of
interface
module)
EMF
the
supply
the
rates.
DC
to
the
motor.
translates
of
shaft,
in
the
forward
A/D
converter
vital
and
currents.
and
3.3V
operated
circuits
across
the
voltage
battery
voltage
to
DC
The
these
rotation.
the
track
of
the
or
in
pump
parameters
6V
for
driving
for
operation
at a 3.3V
required
and
3.3V
motor.
to
drive
and
converter
encoder
pulses
to
Since
the
motor
can
number
clockwise
the
main
the
of
supply
to
supplied
AIM/AIM
Plus
Technical
Service
Manual
4-5
430-600035-002
(Rev.
11/99)
Section
4,
Theory
of
Operation
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430-600035-002
(Rev.
11/99)
Figure
4-6.
Circuit
48
Block
Diagram
AIM/AIM
Plus
Technical
Service
Manual
43
Section
4,
Theory
of
Operation
Detailed
Refer
to
Section
Figure
ロロ
Figure
Figure
Figure
ロロ
Figure
Figure
Figure
ロロ ロロ
Figure
Figure
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Figure
4.3.1
CPU
9-1,
9-2,
9-3,
9-4,
9-5,
9-6,
System
Circuit
9,
Drawings,
AIM
AIM
AIM
AIM
AIM
AIM
9-7,
AIM
9-8,
AIM
9-9,
AIM
9-10,
AIM
Description
for
the
following
Analog
Microprocessor
Power
PC
PC
Plus
Plus
Plus
Plus
Plus
Schematic
and
Miscellaneous
Board,
Board,
Front
Back
Analog
Microprocessor
Power
PC
PC
Schematic
and
Board,
Board,
fold-out
(CPU)
Miscellaneous
Front
Side
Side
Back
Schematic
Circuitry
(CPU)
Schematic
Side
Side
schematics
Schematic
Circuitry
Schematic
and
PCB
drawings:
43.11
Microprocessor
The
Motorola
attached
The
68L11
utilized
range
and
operation.
Resistors
microprocessor
form a low-pass
the
microprocessor.
microprocessor
that
allow
through
The
microprocessor
can
be
microprocessor
crystal.
peripherals.
MC68L11K1FN
peripherals
microprocessor
in
conjunction
C17
and
R116
and
into
filter
has
the
microprocessor
A15).
set
up
via
is
The
E-clock,
(CPU)
are
supplied
contains
with
C16
provide
R117
the
expanded
to
supply a low
The
microprocessor
internal
also
software
typically
paging
contains
however,
microprocessor
by a 3.3V
an
internal
the
2MHz
pull
the
correct
up
the
memory
crystal,
noise
logic
controlled
to
access
memory
internal
to
issue
chip
the
crystal
can
frequency
be
U19
VDD
supply
single
Y1.
R37
loading
MODA
mode
and
of
reference
has
separate
by
beyond
chip
selects
selects
stretched
for
divided
forms
the
to
achieve
inverter
biases
and
phase
MODB
operation
to
the
internal
address
extended
its
normal
(CSPROG,
certain
by
under
software
basis
of the
minimal
(parallel
the
inverter
shift
inputs
coming
A/D
and
address
64K
CSGP2,
address
4,
or
500KHz
control
main
CPU
power
resonant)
for
operation
to
maintain
to
VDD
out
of
reset.
converter
data
lines.
lines
XA13
limitation
CSGP1
ranges.
in
The
the
to
system.
It
consumption.
oscillator
circuit
in a linear
stable
oscillator
to
program
R115
and
C43
via
VRH
input
In
addition,
through
(controlled
and
E-clock
case
allow
XA18
by
CSI0)
on
of a 2MHz
for
slower
and
the
to
the
AO
that
the
ΑΙΜ/ΑΙΜ
Plus
Technical
Service
Manual
4-7
430-600035-002
(Rev.
11/99)
Section
4,
Theory
of
Operation
4.3.1.2
EPROM
The
main
program
memory
used,
jumper
the
the
EPROM
be
DEC
4.3.1.3
Microprocessor
The
circuit
voltage,
watchdog
microprocessor.
oscillator
reset,
microprocessor,
U20.
source
XIRQ
low,
cause
pulses
space.
A13
is
also
option
jumper
CPU
forced
JP12
first
to
pulse
to
the
or
31
DEC,
reset
to
both
issues a minimum
or
whenever
internal
should
both
microprocessors
Whenever
to
BT2
input
to
causing
the
XIRQ
on
V_PWR
The
allows
and
comes
low, thus chip
high
microprocessors
The
fail,
U18.
VDD
source.
U19.
an
interrupt
whenever
memory
EPROM
addressed.
two
not
state,
depending
different
JP11,
out
of
causing
resides
is
If
reset,
on
Supervisory
50
ms
PFI
is
to
U21
is
watchdog
since
both
will
U21
also
drops
below
The
final
Whenever
to
the
V_PWR
from
prematurely
in
the
27LV020
addressed
jumper
choices
giving a 16K
selecting
program
the
11
the
CSPROG
jumper
via
is
used,
of
wide
the
EPROM.
instructions
option).
Circuit
is
controlled
reset
pulse
whenever
less
than
approximately
pulsed
microprocessors
controls
function
PFI
microprocessor.
at
least
forces a reset
force a motor
the
power
BT2
battery
of
U21
falls
below
is
below
triggering
EPROM
the
address
XA13
window
window
will
by
the
every
in
run
off
voltage,
is
to
approximately
R51
approximately
the
lines
through
and
bank
and
be
pulsing
In
addition
to
start
microprocessor
the
VDD
1.3V. A reset
1.6
seconds
the
rare
event
off
the
same
condition,
source
and
for the
the
VOUT
provide a power
1.3V,
and
R52
3V.
XIRQ
circuit.
U15,
which
A0
through
XA17
sizes.
16
banks
low,
the
executing
voltage
that
crystal
an
RAM
the
contains
A12,
are
addressed
Normal
extended
supervisory
will
via
alarm
switches
loss
PFO
operation
of
EPROM
causing
is
the
U14
CE
address
from
the
less
than
also
be
the
WDI
microprocessor
oscillator
condition
and
power
warning
output
When
provide a voltage
C23
acts
as a filter
256K
jumper
instead.
will
memory.
and
OE
lines
highest
circuit,
the
battery
issued
unless
input
in
U19.
from
time
of
from
to
the
CPU
from
U21
divider
to
prevent
adjusted
bytes
call
When
on
will
page
U21.
from
crystal
During
the
day
clock
the
VDD
via
will
noise
of
12
is
This
for
the
all
(15
This
BT2
the
the
6805
the
go
to
4.3.1.4
RAM
The
RAM
backed
lines
is
line.
during
condition
(write
data
D7.
to
from
430-600035-002
up
A0
through A 14,
provided
The
output
low
exists.
condition).
I/O
lines
All
address
maintain
raising
by
Ul4
the
by
the
power
to
all
inputs
the
(Rev.
contains
lithium
microprocessor’s
of
U2D
conditions.
The
The
the
and
RAM’s
32K
battery
allowing a RAM
is
gated
WE
to
the
OE
is
enabled
RAM
are
data
lines
in a known
VCC
11/99)
bytes
The
interfaced
connected
supply
of
via the
CSGP2
with
RESET
chip
RAM
when
logic
memory
supervisory
address
enable
will
via
to
prevent
be
enabled
range
U2D
to
E-clock
directly
to
the
RAM
state
when
current
during
4-8 AIM/AIM
which
is
nonvolatile
circuit
U21.
The
of
00000-07FFF.
and
U12A.
the
the
RAM
whenever
is
high
to
the
microprocessor’s 8 bit
are
pulled
VDD
power
lithium
RAM
will
and
RD
battery
U2D
from
thus
RD
low
is
lost,
is
because
RAM
The
inverts
being
be
from
high
with
thus
backup
its
power
is
addressed
chip
enable
the
active
inadvertently
disabled
the
(read
pull
preventing
Plus
whenever a reset
microprocessor
condition).
data
bus
down
resistors
conditions.
Technical
supply
via
address
to
the
low
CSGP2
written
is
The
DO
through
in
floating
inputs
Service
is
RAM
to
low
eight
order
Manuat
4.3.1.5
Time
U20
battery
reliable
by
power
enabled
by
does
for
U20,
allow
Ul2
insuring
inadvertent
4.3.1.6
Of
Day
contains a separate
backup
oscillator
the
RAM.
U16.
not
U20
so
For
loss
conditions,
by a combination
When
exist.
CSIO
then
becomes
that
U20
ANDing
is
also
powered
valid
access
Display
Clock
32.768
conditions.
function.
the
timer,
otherwise
of
A5-A11
of
the
logic
are
can
be
1000-101F.
cannot
E-clock
by
level
or
high
be
the
KHz
C20
and
C21
The
VDD
supply
it
is
also
important
lithium
the
microprocessor
low
and
CSIO
set
active
The
written
with
same
“1”
backup
during
RD
battery
conditions
battery
crystal
provide
for
battery
is
in
the
range
NAND
low
and
RD
backed
to
current
oscillator
U20
that
CSIO
low,
gate
power
signals
the
circuit
the
necessary
is
the
all
inputs
current
line
U20
is
of
1000-1FFF
U12B
conditions.
to
U20
supply
control
during
power
for
same
battery
be
pulled
drains
and
additional
chip
selected,
via
allows
in
the
as
the
inputs
loss
Section
low
power
additional
phase
backed
to a known
will
be
high.
address
provided a reset
software.
reset
to
disable
U12C
and
proper
RAM
of
and
these
time
time
devices
conditions.
4,
Theory
of
consumption
shift
to
maintain
VDD
supply
logic
state
The
CS
to
decoding
The
effective
the
U12D
sequence.
of
provided
condition
chip
NAND
Note
day
clock,
and
preventing
Operation
during
utilized
during
U20
is
address
select
to
gates
that
thus
The
display
buffers
the
nominal
display
effective
on.
U9A
resistance.
Q12,
U10A,
of
the
software.
to
average
U11B
display.
level
of
the
display
is a separate
the
data
3.3V
is
enabled
address
serves
The
and
display.
This
the
and
Q3
act
The
maximum
Q3
will
and
lines
bus
of
as a 3.3V
two
Q13.
The
pulse
pulses
together
reduce
prevent
4317
Encoder
The
encoder
phasel
decoding
counterclockwise.
Interface
integral
and
phase2.
the
pattern
self-contained
D4-D7,
system
via
U17
1020-1021
to
LED’s
that
U2A,
PW4
output
train
is
into a dc
to
display
the
contrast
oscillations.
Circuit
to
the
These
of
the
two
AO,
and
to
the
when
CSIO
for the
5.0V
are
part
U9B,
U1
is a pulse
applied
level
function
contrast
AIM
Plus
outputs
outputs,
module
EN_DISP
5.0V
bus
levels
is
low,
display.
translator
of
1B,
to a low
that
as a unity
to
the
motor
are
approximately
The
to
the
display
Q3
and
train
pass
is
directly
is
achieved
display.
contains a Hall
itis
possible
that
is
interfaced
(U17-13)
required
AS
is
high
backlight
drive
the
gate
module
associated
output
filter
gain
C56
with
and
proportional
buffer,
when
functions
90
to
determine
to
the
and
provides a logic
by
the
display
and
A6
through
to
the
display
of
O6
at a full
are
driven
components
variable
divider
to
driving
the
drain
R27,
the
the
of
as a filter
effect
encoder
degrees
out
if
the
main
board
level
for
proper
A11
are
is
enabled
5.0V
in a similar
work
to
control
duty
cycle,
R28
and
C13
duty
cycle
contrast
Q3
of
motor
is
at
to
smooth
with
phase
is
terminal
ground.
quadrature
with
turning
via
U32.
translation
from
operation.
low,
giving
by
driving
to
insure
low
manner
of
by
U9D,
the
contrast
controllable
which
function
the
waveform.
(V0)
of
Raising
out
pulses
outputs,
each
other.
clockwise
U32
The
an
Q6
on
by
the
the
from
By
or
PW2
generates a normally
buffer and
when
high.
a
lower
AIM/AIM
level
PW2
goes
Strobing
power
Plus
Technical
the
translator
low, and
encader
state
when
Service
high,
U10B
the
state
helps
its
Manual
low
and
of
reduce
strobe
going
pulse
simultaneously
both
phases
power
input
is
consumption
is
low.
4-9
that
generates a strobe
clocks
U7A
latched
into
U7A
from
and
and
the
encoder,
pulse
U7B.
The
U7B
430-600035-002
to
encoder
when
since
the
PW2
the
encoder
is
strobed
pulse
encoder
(Rev.
via
goes
is
in
11/99)
Section
USA
pulse
U31B
4,
Theory
of
Operation
and
U8B
detect
the
CLKWISE
rises
whenever
CTRCLKWISE
direction.
counterclockwise
gearbox.
software
flow
rates.
line
followed
phase2
line
Normally
rotation,
By
subtracting
can
make
4318
Backup
U18
under
where
U18.
TCAP
frequency
circuitry
peripherals
disabled
microprocessor.
backup
Microprocessor
functions
fault
PD4
The
input
as a backup
conditions,
is
the
clock
oscillator
to
U18
can
be
to
detect
such
as
via
PAX4,
Note
microprocessor.
most
that
the
encoder
at
the
rate
of
by
at
the
the
phase2
pulse
pulse
rises
encoder
motor
usually
the
small
corrections
for the
system
U18
communicates
line,
PD2
input
to
U18
originates
independently
compared
the
keypad
and
that
with
encoder
the
alarm
the X is
or
and
is
turning
the
encoder
rising.
followed
pulse
does
as
the
number
motor
or
CPU
is
the
serial
monitors
software
circuit
serial
can
used
in
in a clockwise
pulses.
Clockwise
Counterclockwise
by
phasel
rate
whenever
turn
clockwise
motor
of
counterclockwise
“backlash”
watchdog
to
the
data
from
the
the
to
the
failures.
RS232
be
enabled
the
port
interface
the
is
stopping
to
help
main
microprocessor
output
from
main
tach
frequency
“clockwise”
Most
of
via
line
bus
(normal)
direction
rotation
rotation
pulse
rising.
motor
turns
except
due
to
counts
and
help
improve
prevent
U18
and
microprocessor
from
pulse
the
port
lines
circuit.
PAXO,
Most
totally
names
to
is
Pulses
counterclockwise
for
very
“backlash”
from
the
pump
U19
PD3
U19
phase]
from
are
importantly,
independently
signify
and
is
decoded
detected
will
small
effects
the
clockwise
flowrate
from
via
the
is
the
serial
via
its
of
the
the
encoder
utilized
the
association
issue
pulses
when
phasel
by
U31A
appear
on
or
reverse
amounts
in
the
motor
counts,
accuracy
delivering
serial
XOUT
encoder.
SPI
data
pin.
at
fluid
input
This
interface
to
interface
the
motor
can
of
the
main
with
on
and
the
of
the
low
bus,
to
The
with
be
the
43.13
Keypad
The
PBXO
rows 0 through 6 are
respectively.
level
keypad
keypad
through
when
bus
Interface
is
interfaced
BPX3
Resistors
no
key
is
conflicts
4.3.1.10
Bolus
The
via
depressed,
function
assembly
case
J1.
Switch
mounted
Both
the
U2-13
as a low
from
Interface
bolus
external
is
pulled
pass
falsely
to
the
backup
are
the
pulsed
monitored
R5-R9,
being
pressed.
in
the
event
membrane
jack
and
to a low
filter
for
R11
that
the
to
prevent
column
presence
and
Diodes
two
switch
membrane
level
triggering a remote
microprocessor
R16
keys
connect
drives
are
D5-8
of
pulses
pull
in
the
for
down
provide
same
to
the
switch
and
U2-12
noise
bolus
issues a high
picked
request.
U18
via
ports
PCX0-6
columns 0 through
on
input
port
lines
resistors
isolation
row
PC
are
connected
up
from
are
board
the
to
maintain
on
the
pressed
via
J15
in
parallel.
level
to
remote
and
ports
3,
respectively,
PCX0O
row
simultaneously.
and
PBX4.
bolus
all
row
drivers
the
remote
If
through
lines
either
R3,
R17
switch
PBX0-3.
and
PCX6,
at a low
to
prevent
bolus
jack
switch
and
and
the
is
C3
cord
430-600035-002
(Rev.
11/98)
4-10
AIM/AIM
Plus
Technical
Service
Manual
4.3.1.11
Serial
Interface
Section
4,
Theory
of
Operation
Connections
control
to
turn
networks
resistors
outputs
from
the
current
line
out
the
RS232
for
R82Z-91
of
U30.
RS232
and
voltage
to
ESD
4.3.2
Analog
Circuits
4.3.2.1
Power
The
two
actually
will
the
check
(R30
the
Circuits
unit
is
powered
power
override
sources
be
powering
TEST_BAT
is
desired
and
R33)
battery
condition
the 4 AA
3.3V, a battery
divider
R30,
R33.
the
external
and
inputs a data
interface
protection.
are
current
U30
acts
adapter
from
by 4 AA
are
the
cells.
signal
and
the
on
the
battery
can
voltage
RS232
on
and
The
limiting
as a buffer
to
the
3.3V
U30D
cells
isolated
pump.
O1
from
the
voltage
when
be
obtained.
of
6.6V
interface
in
and
control
off.
The
diodes
and E to
D21-D30
resistors
plus
voltage
CPU
system.
properly
connected
via
D3
and
Normally,
and
O2
function
6805
microprocessor
is
read
via A to D input
the
battery
Since
will
cause a full
adapter
line
input
to
limit
via
J6
D11,
when
together
voltage
the
reference
cable
are
in.
It
also
provides
and output
clamp
the
the
current
level
translator
R78,
R80,
interface
or
so
the
by
an
that
whichever
8V
power
to
is
high.
to
8V
turn
PEA
test
is
desired, a more
to
scale
reading
made
via
J8.
5.0V
power
lines
are
all
filtered
lines
to
either
to
the
diodes
to
translate
D35
and
D36
serve
the
3.3V
CPU
power
supply
supply
supply
on
The
and
the
microprocessor’s
(FF)
is
plugged
the
load
load
is
turned
filtered
at
by
the
R30
C14.
meaningful
A/D,
J8
outputs a data
and a contro!
by
resistor/diode
5.0V
or
ground
and
the
inputs
from
the
5.0V
to
limit
the
ports.
connected
voltage
and
to
is
higher
into
the
R33
on
when a battery
By
placing a load
measure
A/D
converter
because
and
line
and
and
levels
output
J13.
The
will
pump,
it
whenever
of
is
of
the 2/1
A/D
input
PE6
R12
and
C11.
This
C12
supply
should
determine
reference
The
pump’s
or
8V
batteries.
MOSFET
flyback voltage
charge
VFB
causing
divider
control
when
pulsing,
power
Shottky
go
to
whether
input
from
The
transistor
up
towards
input
C6
to
to
set
system.
the
unit
since
supply
diode
5.0V/2
6.6V.
main
the
to
U4
start
the
is
will
monitors
input
to
the
This
input
the
3.3V
to
the
A/D
power
power
converter
is
D9
running
the
drive
supply)
U13A
created
the
flyback
to
approach
to
discharge
output
prevents
VFB
pin
then
flow
below
the
voltage
should
read
A/D
converter
can
supply
converter.
supply
voltage,
on
voltage V PWR
is
is a step
on
and
at
the
anode
voltage.
approximately
through
from
batteries.
will
now
through
the
external
of
the
full
scale
input
be
used
to
is
within
converted
up
switching
off,
causing
of
D9,
When
the
while
C7
flowing
When
be
L1
and
from
pulled
supply
8V
supply
(FF)
PES,
check
to
approximately
causing
Cé6’s
1.3V,
load
causes a phase
the
unit
D9
as
provided
for a 9.9V
which
for
proper
specification,
(which
regulator
current
current
voltage
then
on
the
6-8V
the
6-8V
is
running
to a higher voltage than
to
the
6-8V
supply
should
operation
can
either
controlled
to
flow
to
is
sufficiently
the
EXT
supply
lead
supply
on
supply,
voltage.
by
voltage.
read
since
the
be 3 to 6 V
6.5V
when
through
flow
output
line.
to
prevent
to
the
the 8 V
resulting
voltage
divider
Divider
full
scale
of
the
5.0V
3.3V.
supply
from
the
unit
by
U4.
U4
L1.
When U13A
through D9
high,
however,
of
U4
R14
and
“hunting”
lower
supply
power
1.3V.
in
supply,
The
an
and
filter
R32,
R21,
R22
and
if
the
5.0V
supply
supply
is
drives N channel
thus
continues
R15
output
as
well
serves
the
running
causing
form a voltage
of
voltage
U4
current
AA
batteries
shuts
to
cause
pulsing,
the
voltage
V_PWR
will
from
as
on
off,
C6
not
voltage
the
the
one
as
a
to
the
be
the
AIM/AIM
Plus
Technical
Service
Manual
4-11
430-600035-002
(Rev.
11/99)
Section
The
5.0V
to
transzorb
ofa
4,
Theory
6-8V
supply
supply.
all
devices
clamping
malfunction
“supercap”
capacitor
of
The
capable
approximately
the
couples
provide
C53
is a much
circuit
is
ON. Q14
Q15.
running
This slow
in
order
discharged
reset
Without
can
remain
intermediate
inputs.
voltage
an
orderly
following
is
driven
C53,
therefore,
on
batteries
charging
to
prevent
when
prevents
the
rapid
in
state
larger
multiple
Operation
is
regulated
5.0V
is
of
functioning
diode
in
U3
which
that
50mA,
maximum
from
power-down
(1F
loss
of
AC
when
is
only
connected
scheme
the
low
RESET
resets
discharge
an
intermediate
inputs
to
5.0V
by a linear
further
is
C5
supercap)
which
could
regulated
clamps
at
3.3
the
cause
by
V.
its
charged through R13
to
reduce
to
the
5.0V
bus
sequence.
capacitor
power.
Q15
“fast”
is
battery
goes
C53
is
ON,
charged
to
J6,
C53
utilized
trip
high
to
via
is
whenever
is
keep
point
Q17
from occurring
of
these
capacitors,
state
for
could
cause
high
regulator
another
C8
filters
output
output
via
the
load
upon
loss
that
is
charged
there
via
R150
charged
the
peak
from
being
and
Q16,
and
especially
long
periods
supply
current
U3
regulator
the
output
voltage
voltage
the
on
of
of
to
5.0V
the
power
utilized
through
reduces
current
is
sufficient
when
power
more
slowly
current
reached
respectively.
lithium
C53,
as
drains, similar
for
use
by
U6
to
3.3V
of
U3
U3
at
approximately
go
out
of
supply.
5.0V
regulator
to
allow
to
provide
limiting
voltage
is
present
via
R155
drains
on
prematurely.
Discharging
battery
the
inputs
the
capacitors
all
components
operation
for
stable
regulation.
R13
limits
charging
during
time
for
power
to
the
resistor
at
J13
at
J13.
current
the
battery
Both
standby
to
the
RAM
are
discharging.
to
the
condition
requiring
to
supply
operation.
5.0V
Capacitor
in
D10
the
current
power-up.
the
CPU
system
CPU
and
R150
when
to
drive
the
When
the
limiting
as
low
C5
both
current
resistor.
as
possible
and
capacitors
quickly.
and
timer
of
a
VDD
isa
event
C5
is
a
to
D13
to
alarm
Q14
base
of
pump
is
C53
are
at
chip
These
floating
4.3.2.2
Audible
The
connected
oscillator
alarm
processor’s
control.
audio
Under
output
pulses
high,
Whenever
high,
U35B’s
the
audio
a
voltage
Alarm
audibie
alarm
to
the
circuit,
signal
will
PW3
Increasing
transducer.
normal
of
the
U35B
high.
U26C
Q7
turn
ON,
the
the
backup
output
transducer
level
approximately
the
audio transducer.
power
sounding
when
switch
when
the
unit
is a small
circuit
therefore
originate
conditions,
ALARM
alarm
goes
from
2KHz
is
turned
the
is
deliberately
board
output.
the
duty
low,
so
is
held
causing
line
circuit
high,
drive.
approximately
at
approximately
U35D
off
power
electromagnetic
via
J12.
The
these
are
provided
in
the
68L11
The
PW3’s
cycle
the
ALARM
that
U10F’s
high,
thus
drive
from
consisting
thus
disabling
U11C
from
to
the
is
part
the
(main)
duty
PW3
line
output
U26A’s
audio
watchdog
of
gate
ofan
5/3
50%
and
U35C
together
and
reset
condition
switch
is
turned
turned
off.
audio
transducer
audio
transducer
on
the
circuit
microprocessor.
cycle
and
(up
to a point)
from
the
watchdog
is
high.
output
transducer
U11C,
U26B
RC
volts
duty
off
pulses
microprocessor
U26C
and
oscillator
to
10/3
cycle,
prevent
is
reached.
and
reset
(piezo
does
board.
The
frequency
causes
microprocessor
Gate
U26B
in
sync with
plugged
is
and
associated
preventing
circuit
that
volts.
U26C
which
in
the
backup
This
occurs,
to
element
not
contain
For
normal
alarm
drive
can
be
changed
an
increase
is
thus
enabled
PW3.
into
J12.
high,
and
components
PW3
from
charges
outputs a square
turn
drives
alarm
from
scheme
prevent
prevents
the
on
the
its
alarm
is
provided
under
in
loudness
is
low,
every
When
gate
U35C’s
will
having
and
discharges
U26A
and
occurring
alarm
AIM)
which
own
driver
conditions,
making
U26A
be
any
Q7
the
alarm
from
the
by
this
software
of the
the
time
PW3
pulses
output
enabled.
effect
C41
wave
to
drive
when
from
sounding
is
or
is
on
to
of
the
430-600035-002
(Rev.
11/99)
4-12
AIM/AIM
Plus
Technical
Service
Manual
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