NELLCOR PURITAN BENNETT LP6 Plus, LP10, LP20 Technical Manual

LP6 Plus, LP10, and LP20 Volume Ventilators

Technical Manual

L-004238-001 Rev. B

LP6 Plus, LP10, and LP20 Technical Manual

For more information:

page ii

©Copyright 2000, Nellcor Puritan Bennett, Inc., 2800 Northwest Blvd., Minneapolis, Minnesota 55441-2625 U.S.A. All rights reserved. No portion of this manual may be copied, reproduced, or stored in any form without the express written permission of Nellcor Puritan Bennett, Inc.

Nellcor Puritan Bennett is a registered trademark and A Breath of Fresh Air is a trademark of Nellcor Puritan Bennett, Inc.

For information on our full line of medical equipment and related services, contact Nellcor Puritan Bennett directly. General: (800) 497-4979. Customer Service: (800) 497-

4968. Technical Service: (800) 497-3787.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

1 Introduction

1 Introduction1 Introduction

Chapters

Chapters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Chapters Chapters What’s New in this Revision

What’s New in this Revision - - - - - - - - - - - - - - - - - - - - - - - -

What’s New in this Revision What’s New in this Revision Conventions

Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Conventions Conventions

2 Description

2 Description2 Description

Components

Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

ComponentsComponents

Front Panel (LP20 shown) - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2 Back Panel (LP20 shown) - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4

Operating Controls

Operating Controls - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Operating Controls Operating Controls Modes of Operation

Modes of Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Modes of Operation Modes of Operation Ventilator Parameters

Ventilator Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Ventilator Parameters Ventilator Parameters Accessories

Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Accessories Accessories Specifications

Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Specifications Specifications

LP6 Plus, LP10, and LP20 Volume Ventilators - - - - - - - - - - - - - 2-12

Contents

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 1-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-11

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-12

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1-1

1-11-1 1-2

1-21-2 1-2

1-21-2

2-2

2-22-2

2-5

2-52-5 2-6

2-62-6 2-8

2-82-8

2-11

2-112-11 2-12

2-122-12

3 Testing

3 Testing3 Testing

Scope

Scope - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Scope Scope Equipment

Equipment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Equipment Equipment Supplies

Supplies - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Supplies Supplies Procedure

Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Procedure Procedure

Operational Checklist

Operational Checklist - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Operational Checklist Operational Checklist Ventilator Operational Checklist

Ventilator Operational Checklist - - - - - - - - - - - - - - - - - - - -

Ventilator Operational Checklist Ventilator Operational Checklist

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-4

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Visual Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-4 Control Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6 Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6 Patient Circuit Leak Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-7 Power Checkout - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-8

Assist/Control

SIMV Mode Checkout - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-11 Pressure Cycle Mode Checkout - - - - - - - - - - - - - - - - - - - - - - 3-13 Pressure Limit Checkout (LP10, LP20) - - - - - - - - - - - - - - - - - - - 3-14

Mode Checkout - - - - - - - - - - - - - - - - - - - - - - 3-9

- - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-15

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - 3-17

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

3-2

3-23-2 3-3

3-33-3 3-3

3-33-3 3-4

3-43-4

3-15

3-153-15 3-17

3-173-17

November 2000

Page iii

Page iiiPage iii

4 Theory of Operation

4 Theory of Operation4 Theory of Operation

Pneumatic System Overview

Pneumatic System Overview - - - - - - - - - - - - - - - - - - - - - - -

Pneumatic System Overview Pneumatic System Overview Mechanical System Overview

Mechanical System Overview - - - - - - - - - - - - - - - - - - - - - -

Mechanical System Overview Mechanical System Overview Electrical System Overview

Electrical System Overview - - - - - - - - - - - - - - - - - - - - - - - -

Electrical System Overview Electrical System Overview Operating Modes

Operating Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Operating Modes Operating Modes

Boards and Major Components

Boards and Major Components - - - - - - - - - - - - - - - - - - - -

Boards and Major Components Boards and Major Components

Accessories

Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Accessories Accessories

System Control

System Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

System Control System Control

Functional Block Diagram

Functional Block Diagram - - - - - - - - - - - - - - - - - - - - - - - - -

Functional Block Diagram Functional Block Diagram

LP6 Plus, LP10, and LP20 Technical Manual

- - - - - - - - - - - - - - - - - - - - - - - 4-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - 4-3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 4-4

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Standby - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5 Assist/Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5 SIMV - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-6 Pressure Cycle - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7

- - - - - - - - - - - - - - - - - - - - 4-7

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Logic Board - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 Power/Motor Board - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 LED Board - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 Exhalation Solenoid Valve - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 Pressure Transducer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 Fan - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7 Audio Alarm - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 Magnetic Position Sensor - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 Motor and Gearbox - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 Transformer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 RFI Filter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 AC Power Switch/Circuit Breaker - - - - - - - - - - - - - - - - - - - - - - 4-8 Rectifier - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 AC Power Cord - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 Internal Battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 DC Circuit Breaker - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8 Nurse Call Board (LP20 only) - - - - - - - - - - - - - - - - - - - - - - - - - 4-8

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Printer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9 External Battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-10

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Microprocessor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-10 Analog to Digital Converter - - - - - - - - - - - - - - - - - - - - - - - - - - 4-11 Digital to Analog Converter - - - - - - - - - - - - - - - - - - - - - - - - - - 4-11 Chip Identification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-12 High/Low Pressure Alarms - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-12 Alarm Lights; Front Panel Push Buttons - - - - - - - - - - - - - - - - - - 4-13 Error Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-13 Power/Motor Board - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-13

- - - - - - - - - - - - - - - - - - - - - - - - - 4-16

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

4-2

4-24-2 4-3

4-34-3 4-4

4-44-4 4-5

4-54-5

4-7

4-74-7

4-9

4-94-9

4-10

4-104-10

4-16

4-164-16

Page iv

Page ivPage iv

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

5 Maintenance

5 Maintenance5 Maintenance

Maintenance Schedule

Maintenance Schedule - - - - - - - - - - - - - - - - - - - - - - - - - -

Maintenance Schedule Maintenance Schedule Preventive Maintenance

Preventive Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - -

Preventive Maintenance Preventive Maintenance

Visual Check - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2 Exterior cleaning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2

Inlet Filter

Bacteria Filter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4 Patient Circuit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6 Exhalation Manifold Assembly - - - - - - - - - - - - - - - - - - - - - - - - 5-7 Humidifier - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7 External Battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-8 Printer Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-9

6 Troubleshooting

6 Troubleshooting6 Troubleshooting

Troubleshooting Chart

Troubleshooting Chart - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Troubleshooting Chart Troubleshooting Chart Alarm Condition Chart

Alarm Condition Chart - - - - - - - - - - - - - - - - - - - - - - - - - - -

Alarm Condition Chart Alarm Condition Chart

- - - - - - - - - - - - - - - - - - - - - - - - - - 5-1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - 5-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - 6-4

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

5-1

5-15-1 5-2

5-25-2

6-1

6-16-1 6-4

6-46-4

7 Schematics

7 Schematics7 Schematics

Final Assembly

Final Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Final Assembly Final Assembly Front Panel (LP6 Plus, LP10)

Front Panel (LP6 Plus, LP10) - - - - - - - - - - - - - - - - - - - - - - - -

Front Panel (LP6 Plus, LP10) Front Panel (LP6 Plus, LP10) Front Panel (LP6 Plus/LP10)

Front Panel (LP6 Plus/LP10) - - - - - - - - - - - - - - - - - - - - - - - - -

Front Panel (LP6 Plus/LP10) Front Panel (LP6 Plus/LP10) Front Panel (LP20)

Front Panel (LP20) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Front Panel (LP20) Front Panel (LP20) Front Panel (LP20)

Front Panel (LP20) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Front Panel (LP20) Front Panel (LP20) Through-Hole Logic Board

Through-Hole Logic Board - - - - - - - - - - - - - - - - - - - - - - - - -

Through-Hole Logic Board Through-Hole Logic Board Through-Hole Logic Board

Through-Hole Logic Board - - - - - - - - - - - - - - - - - - - - - - - - -

Through-Hole Logic Board Through-Hole Logic Board Through-Hole Logic Board

Through-Hole Logic Board - - - - - - - - - - - - - - - - - - - - - - - - -

Through-Hole Logic Board Through-Hole Logic Board Through-Hole Logic Board

Through-Hole Logic Board - - - - - - - - - - - - - - - - - - - - - - - - -

Through-Hole Logic Board Through-Hole Logic Board Surface-Mount Logic Board

Surface-Mount Logic Board - - - - - - - - - - - - - - - - - - - - - - - -

Surface-Mount Logic Board Surface-Mount Logic Board Surface-Mount Logic Board

Surface-Mount Logic Board - - - - - - - - - - - - - - - - - - - - - - - -

Surface-Mount Logic Board Surface-Mount Logic Board Surface-Mount Logic Board

Surface-Mount Logic Board - - - - - - - - - - - - - - - - - - - - - - - -

Surface-Mount Logic Board Surface-Mount Logic Board Surface-Mount Logic Board

Surface-Mount Logic Board - - - - - - - - - - - - - - - - - - - - - - - -

Surface-Mount Logic Board Surface-Mount Logic Board Through-Hole Power-Motor Board

Through-Hole Power-Motor Board - - - - - - - - - - - - - - - - - - -

Through-Hole Power-Motor Board Through-Hole Power-Motor Board Through-Hole Power/Motor Board

Through-Hole Power/Motor Board - - - - - - - - - - - - - - - - - - -

Through-Hole Power/Motor Board Through-Hole Power/Motor Board Through-Hole Power/Motor Board

Through-Hole Power/Motor Board - - - - - - - - - - - - - - - - - - -

Through-Hole Power/Motor Board Through-Hole Power/Motor Board Surface-Mount Power/Motor Board

Surface-Mount Power/Motor Board - - - - - - - - - - - - - - - - - -

Surface-Mount Power/Motor Board Surface-Mount Power/Motor Board Surface-Mount Power/Motor Board

Surface-Mount Power/Motor Board - - - - - - - - - - - - - - - - - -

Surface-Mount Power/Motor Board Surface-Mount Power/Motor Board Surface-Mount Power/Motor Board

Surface-Mount Power/Motor Board - - - - - - - - - - - - - - - - - -

Surface-Mount Power/Motor Board Surface-Mount Power/Motor Board Pressure Limit Assembly (LP10, LP20)

Pressure Limit Assembly (LP10, LP20) - - - - - - - - - - - - - - - - - -

Pressure Limit Assembly (LP10, LP20) Pressure Limit Assembly (LP10, LP20)

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-4

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-5

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-6

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-7

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-8

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-9

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-10

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-11

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-12

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-13

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-14

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - 7-15

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - 7-16

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - 7-17

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - 7-18

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - 7-19

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - 7-20

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - 7-21

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

7-2

7-27-2 7-3

7-37-3 7-4

7-47-4 7-5

7-57-5 7-6

7-67-6 7-7

7-77-7 7-8

7-87-8 7-9

7-97-9

7-10

7-107-10 7-11

7-117-11 7-12

7-127-12 7-13

7-137-13 7-14

7-147-14 7-15

7-157-15 7-16

7-167-16 7-17

7-177-17 7-18

7-187-18 7-19

7-197-19 7-20

7-207-20 7-21

7-217-21

November 2000

Page v

Page vPage v

8 Service Policy

8 Service Policy8 Service Policy

LP6 Plus, LP10, and LP20 Technical Manual

Front Bezel (LP6 Plus only)

Front Bezel (LP6 Plus only) - - - - - - - - - - - - - - - - - - - - - - - - -

Front Bezel (LP6 Plus only) Front Bezel (LP6 Plus only) Right End Assembly

Right End Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Right End Assembly Right End Assembly Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10) - - - - - - - - - - - - - - - - - - - - - - - -

Back Panel (LP6 Plus, LP10) Back Panel (LP6 Plus, LP10) Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10) - - - - - - - - - - - - - - - - - - - - - - - -

Back Panel (LP6 Plus, LP10) Back Panel (LP6 Plus, LP10) Back Panel (LP20)

Back Panel (LP20) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Back Panel (LP20) Back Panel (LP20) Back Panel (LP20)

Back Panel (LP20) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Back Panel (LP20) Back Panel (LP20) Nurse Call Board

Nurse Call Board - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Nurse Call Board Nurse Call Board

Limited Warranty

Limited Warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Limited Warranty Limited Warranty

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-23

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-26

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-27

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-28

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-2

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - 7-22

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-24

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - 7-25

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

7-22

7-227-22 7-23

7-237-23 7-24

7-247-24 7-25

7-257-25 7-26

7-267-26 7-27

7-277-27 7-28

7-287-28

8-2

8-28-2

Page vi

Page viPage vi

November 2000

1 Introduction

1 Introduction1 Introduction

This Technical Manual provides procedures to verify and maintain the LP6 Plus, LP10, and LP20 Volume Ventilators. It is not intended to be a complete maintenance document and therefore contains no disassembly, repair, or reassembly instructions.

Refer any adjustments or procedures that exceed the scope of this manual to a Nellcor Puritan Bennett Technical Service Representative by calling:

This manual contains proprietary information. It is intended for use only by qualified individuals in the installation and maintenance of the LP6 Plus, LP10, and LP20 Ventilators. Receipt, purchase, or possession of this document in no way confers or transfers any other rights for the use of this information. Disclosure or reproduction of the enclosed, without the written permission of Nellcor Puritan Bennett, Inc., is prohibited.

Chapters

ChaptersChapters

800-497-3787

Theory of Operation

November 2000

Description

Testing

Maintenance

This manual consists of the following chapters:

Identifies all features and functions of the ventilators.

Provides procedures for verifying unit operation.

A detailed overview of the ventilators, with a block diagram to supplement the text.

Outlines preventive maintenance procedures and troubleshooting.

Page 1-1

Page 1-1Page 1-1

What’s New in this Revision

What’s New in this RevisionWhat’s New in this Revision

What’s New in this Revision

What’s New in this RevisionWhat’s New in this Revision

LP6 Plus, LP10, and LP20 Technical Manual

Chapter 3 Testing

Chapter 4 Theory of Operation

Chapter 5 Maintenance

Chapter 7 Schematics

Conventions

ConventionsConventions

Patient Circuit Leak has been updated.

Surface-mount logic and power/motor boards are being used in addition to through-hole boards. Details are given for all board types.

Newer production units have an internal battery charge voltage of

14.4V.

New procedure has been added for inspecting and replacing the Flatpak inlet filter.

Part descriptions added to drawings.

New surface-mount board drawings added.

Back panel drawing updated with new grounding scheme.

Page 1-2

Page 1-2Page 1-2

Note

Caution

CautionCaution

Warning

WarningWarning

The following differentiation is made in this manual between Notes, Cautions,

Directions that make it easier to use or service the product.

Directions that help avoid damaging the ventilators.

Directions that warn of conditions or actions that put the

Directions that warn of conditions or actions that put theDirections that warn of conditions or actions that put the patient, the technician, or other people at risk of injury.

patient, the technician, or other people at risk of injury.

patient, the technician, or other people at risk of injury.patient, the technician, or other people at risk of injury.

, and War n i ngs::::

, ,

November 2000

2 Description

2 Description2 Description

The Nellcor Puritan Bennett LP6 Plus, LP10, and LP20 are microprocessor-controlled Volume Ventilators. They provide continuous respiratory support for patients encountering ventilatory insufficiencies in home or hospital settings, or in transport.

The ventilators offer a range of delivery volumes, inspiratory times, and breathing rates. The control knobs in the recessed front panel allow the physician or respiratory therapist to set the parameters that will provide appropriate ventilation. The door panel and knobs are designed to prevent tampering and accidental setting changes.

The ventilators provide both audible and visual alarms. See the Trouble- shooting section for a complete list of alarms, indications, and possible causes.

November 2000

Page 2-1

Page 2-1Page 2-1

Components

ComponentsComponents

Components

ComponentsComponents

Front Panel (LP20 shown)

Front Panel (LP20 shown)Front Panel (LP20 shown)

LP6 Plus, LP10, and LP20 Technical Manual

b

c

d

e

a

o

n

m

l

k

j

f

Page 2-2

Page 2-2Page 2-2

i

g

h

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Components

ComponentsComponents

a

Power Source Indicators

on when AC power is in use and either battery is charging. Solid Amber Light is on when an external battery is providing power. Flashing Amber Light is on and audio signal every five minutes when internal battery is in use.

Green Light is

b

Battery Test

external/internal battery charge level (the ventilator must be operating on the battery being tested). Read results on Battery Condition scale of the with machine. Read results on and multiply the number indicated on the meter by 200.

PATIENT PRESSURE

ALARM SILENCE/RESE

Press this button for a test of

meter. Press in combination

for operating hours on

T

meter

PATIENT PRESSURE

c

These LEDs

Visual Alarm Indicators

identify alarm conditions or alarm pre-silence.

d

ALARM SILENCE/RESET

test alarms (on the LP20, hold for 3 seconds). Push to pre-silence alarms for 60 seconds (LP20 only). Push to silence any audible alarm (except setting error or apnea alarms) for 60 seconds. A silenced alarm will automatically reset when the condition is corrected.

Button Push to

h

Front Carrying Handle

i

Pressure Limit Control (LP10, LP20)

control limits the patient pressure during an assisted or controlled breath. The pressure limit control knob has a locking outer ring; push the outer ring in and turn the small center knob to change settings.

This

j

PATIENT AIR Port

nection for patient air tube.

Standard 22 mm con-

k

EXHALATION VALVE Port

for the exhalation valve tubing of the patient circuit.

l

PATIENT PRESSURE Port

the proximal pressure line of the patient circuit. Connection and line are color coded with black stripe.

A connection

A connection for

m

BREATHING EFFORT

vated by patient breathing effort. Breathing effort sensitivity is set by the knob.

Green light is acti-

BREATHING EFFORT

control

e

Ventilator Control Knobs

Controls" on page 2-5 for details.

BREATHING EFFORT

knobs; push in and turn to change setting.

controls are locking, skirted

f

Alarm Reference Guide

alarm functions with suggestions for corrective action.

g

Control Panel Door

to protect controls.

November 2000

Magnetically latched

See "Operating

VOLUM E

Summary of

and

n

Battery Condition Scale

the

BATTERY TEST

here.

button, read the battery condition

While pressing

o

PATIENT PRESSURE

mal pressure. Also displays battery charge level and machine hours of operation when appropriate buttons are pressed.

Meter Displays proxi-

Page 2-3

Page 2-3Page 2-3

Components

ComponentsComponents

Back Panel (LP20 shown)

Back Panel (LP20 shown) Back Panel (LP20 shown)

LP6 Plus, LP10, and LP20 Technical Manual

1

Mounting Rails

2

INLET FILTER with Screw Off Cap

is drawn through this filter. Protects airflow and allows for easy filter change.

3

Pressure Relief

4

Cord Wrap and Rear Feet

5

Voltage Select Switch

6

AC Power Switch/Circuit Breaker

7

Serial Number Plate

8

COMMUNICATIONS PORT

Page 2-4

Page 2-4Page 2-4

Connection for accessories.

Patient air

Do not block.

Connector for

optional printer.

9

DC Circuit Breaker

10

REMOTE ALARM Connection

11

ALARM OUTPUT (LP20 only)

jack for connecting the ventilator to a nurse call station.

12

EXTERNAL 12VDC BATTERY Connector

13

Rear Carrying Handle Recess

14

AC Plug Holder

15

Vent

Do not block.

1/4" phone

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Operating Controls

Operating ControlsOperating Controls

War ning

War ningWar ning

Operating Controls

Operating ControlsOperating Controls

Periodically check the control panel to be sure that the

Periodically check the control panel to be sure that thePeriodically check the control panel to be sure that the controls are on the prescribed settings. The settings should

controls are on the prescribed settings. The settings should

controls are on the prescribed settings. The settings shouldcontrols are on the prescribed settings. The settings should not be changed without the order of a physician.

not be changed without the order of a physician.

not be changed without the order of a physician.not be changed without the order of a physician.

MODE Control:

See page 2-6.

VOLUME Control:

Push in, then turn the knob to change the setting. When adjusted, the volume changes in 100 ml steps during each breath until the new volume is reached.

BREATH RATE Control:

breaths per minute.

INSPIRATORY TIME Control: A

time for the breath.

November 2000

Selects modes of operation.

Sets the breath volume.

Adjusts the number of

djusts delivery

BREATHING EFFORT Control:

patient effort needed to trigger a machine delivered breath. Push in, then turn to change the

When a breath is sensed, the

setting.

ING EFFORT

LOW ALARM:

low pressure alarm sounds if this limit is not reached for two consecutive breaths.

HIGH ALARM/LIMIT:

alarm or high pressure limit. The high pressure alarm sounds when the setting is exceeded (except in Pressure Limited mode). The alarm stops when the pressure drops to a lower level. Inspiration ends when the set point is reached.

indicator

lights.

Sets the low pressure limit. The

Sets the high pressure

Adjusts the

BREATH-

Page 2-5

Page 2-5Page 2-5

Modes of Operation

Modes of OperationModes of Operation

Modes of Operation

Modes of OperationModes of Operation

LP6 Plus, LP10, and LP20 Technical Manual

Standby

Standby I

StandbyStandby

Note

Assist/Control

Assist/ControlAssist/Control

Modes are set by a 4-position lows:

• Standby

• Assist/Control

• SIMV

• Pressure Cycle

n this mode, the ventilator is placed in a Standby mode, while both the external or internal batteries are being recharged. AC power must be on. Patient assisted ventilation cannot occur in this mode, but spontaneous breathing through the machine can occur.

Batteries charge equally well in all

The ventilator functions as an assistant or controller, depending upon the patient inspiratory efforts. The Assist mode permits the patient to receive patient-initiated breaths, delivered when the patients inspiratory effort creates a negative pressure that equals or exceeds that set on the

If the patient fails to breathe spontaneously or to achieve the required negative pressure, the ventilator takes control and delivers a breath to the patient. The ventilator continues to function as a controller until the patient resumes spontaneous inspiratory efforts at an acceptable rate and depth (negative pressure).

BREATHING EFFORT

switch. The modes are as fol-

MODE

switch positions.

MODE

control

.

SIMV

SIMVSIMV

Page 2-6

Page 2-6Page 2-6

If the breathing rate is set at less than 6 BPM and the patient makes no spontaneous effort, the apnea alarm sounds within 10 seconds; the ventilator then delivers 10 BPM at the preset volume.

The SIMV (Synchronized Intermittent Mandatory Ventilation) mode permits patients to breathe spontaneously between mandatory machine-delivered breaths. This mode is frequently used where sleep apnea may occur, to assist patients with advanced COPD, or to wean patients from mechanical ventilation.

Under normal SIMV operation, the ventilator delivers mandatory breaths at a rate set on the tors the patients spontaneous breathing and synchronizes these mandatory breaths to improve patient comfort.

BREATH RATE

control. The ventilator moni-

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Cycle

Pressure Cycle T

Pressure CyclePressure Cycle

Modes of Operation

Modes of OperationModes of Operation

If the patients inspiratory efforts stop, the following occurs:

• For preset SIMV rates between 1 and 5 BPM, an apnea alarm

sounds after 20 seconds, and the ventilator delivers 10 BPM at the set volume.

• At rates of 6 BPM or greater, the ventilator will continue to

deliver mandatory breaths at the set rate and volume; the apnea alarm will not sound.

his mode is similar to the Assist/Control mode with the exception

that the

HIGH ALARM/LIMIT

cutoff. Therefore, if the pressure limit set on the

(pressure) control determines inspiratory

con-

HIGH ALARM/LIMIT

trol is reached before the set inspiratory volume is delivered, this pressure limit terminates inspiration, regardless of volume delivered, and no alarm sounds. The high pressure limit may be selected from 15 to 90 cmH

O above atmospheric pressure. If the termina-

2

tion is ineffective, causing the pressure to exceed the high pressure limit setting by more than 10 cmH

O, the

2

HIGH PRESSURE

light and

audio alarm activate.

If the patient makes no effort to breathe, the ventilator will take control and deliver air. Exactly how this occurs depends on the

setting:

RATE

With

BREATH RATE

set at 1-5 BPM: If the patient does not start a breath

BREATH

for 10 seconds, an apnea alarm signals the caregiver; the ventilator delivers 10 breaths per minute at the set volume, or until it reaches the set pressure limit.

With

BREATH RATE

set at 6 BPM or greater: The ventilator will continue to deliver breaths at the set rate. The apnea alarm will not sound unless the ventilator cannot deliver a breath.

November 2000

Page 2-7

Page 2-7Page 2-7

Ventilator Parameters

Ventilator ParametersVentilator Parameters

Ventilator Parameters

Ventilator ParametersVentilator Parameters

Vo lu m e

Vo lu m eVo lu m e

Breath Rate

Breath RateBreath Rate

Inspiratory or I-Time

Inspiratory or I-TimeInspiratory or I-Time

The delivered volume, or tidal volume, is set using the front panel

VOLUM E

with continuous settings ranging from 100 to 2200 ml.

Breathing rates (breaths per minute) are adjustable using the

RATE

of 1 BPM), and 22 to 38 BPM (in increments of 2 BPM).

The into the patients lungs, thereby varying the amount of time that is required to deliver the set volume. Inspiratory time settings range from 0.5 to 1.0 sec. (in increments of 0.1 sec.), and 1.5 to 5.5 seconds (in increments of 0.5 sec.). Expiratory time and the I/E ratio are determined by the rate is determined by the

LP6 Plus, LP10, and LP20 Technical Manual

control. This push-to-turn control sets piston excursion,

BREATH

control. The control permits rates of 1 to 20 BPM (in increments

control adjusts the rate of air flow being delivered

INSPIRATORY TIME

VOL UME

and

INSPIRATORY TIME

BREATH RATE

settings.

settings; flow

Note

Breathing Effort

Breathing EffortBreathing Effort

Warning

Warning Warning

BREATH RATE

and

INSPIRATORY TIME

inspiratory time longer than expiratory time will cause a

alarm. The ventilator will deliver at the set inspiratory

ERROR

settings that would result in

SETTING

time at an I/E ratio of 1:1.

The

BREATHING EFFORT

effort necessary for triggering a machine-delivered breath, or to reset the apnea alarm (at breathing rates of 1 - 5 BPM). Settings are continuous from -10 to +10 cmH

pressure. When a sufficient breathing effort is sensed, the green

BREATHING EFFORT

used to compensate for Positive End Expiratory Pressure (PEEP).

BREATHING EFFORT

may cause the ventilator to autocycle (come on and off

may cause the ventilator to autocycle (come on and offmay cause the ventilator to autocycle (come on and off repeatedly without patient effort).

repeatedly without patient effort).

repeatedly without patient effort). repeatedly without patient effort).

control allows the operator to set the patient

O, with zero being atmospheric

2

indicator lights. Control settings above zero (+) are

settings above zero without the use of PEEP

settings above zero without the use of PEEPsettings above zero without the use of PEEP

Page 2-8

Page 2-8Page 2-8

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Alarms

Pressure AlarmsPressure Alarms

Ventilator Parameters

Ventilator ParametersVentilator Parameters

A front panel alarm limits are 2 to 32 cmH

sounds only after the low pressure setting has not been achieved for two consecutive brea

LOW ALARM

control sets the low pressure limit. Available

O (increments of 2 cmH2O). The alarm

2

ths.

Note

Supplemental Oxygen

Supplemental OxygenSupplemental Oxygen

PEEP

PEEPPEEP

On the LP20, the audible alarm is double-pulsed for Low Pressure alarm events.

A separate high pressure limit point. In Assist/Control or alarm will sound whenever the high alarm setting is exceeded, but the alarm automatically stops when the pressure drops to a level below the limit. This control also sets the high pressure limit for pressure limited ventilation. In this mode, inhalation is terminated when the high pressure alarm set point is exceeded. The high pressure alarm does not sound in the the pressure limit is exceeded by 10 cmH

tings are 15 to 90 cmH

The ventilator includes provisions for the addition of prescribed supplemental oxygen. The ventilator delivers up to 40% oxygen concentration when the oxygen elbow and fitting is used. Concentrations up to 100% are attainable when oxygen is delivered through the inlet filter port (located on the rear panel), using the Oxygen Enrichment Kit. Instructions for delivering supplemental oxygen are included with these accessories.

PEEP (Positive End Expiratory Pressure) is accomplished with the ventilator by connecting an accessory valve to the patient circuit. The ventilator is PEEP-compensated for up to +10 cmH

PEEP instructions are included with these accessories.

HIGH ALARM/LIMIT

control permits the operator to set the

ventilation, the

SIMV

PRESSURE LIMITED

O or more. Available set-

2

O in increments of 5 cmH2O.

2

mode unless

O. Complete

2

Humidification

HumidificationHumidification

November 2000

When humidification is prescribed, several humidification devices are compatible with the ventilator. Under normal extended use, an active humidifier is often recommended. Nellcor Puritan Bennett can supply a mounting bracket that is especially designed for the most popular humidifiers. Connection information is supplied with the mounting bracket.

A passive, in-line regenerative humidifier such as an artificial nose is commonly used to conserve humidification during patient transport or wheelchair use. It is intended for short-term use only. The regenerative humidifier retains portions of the exhaled heat and humidity, to aid in conditioning subsequent inhalations.

Page 2-9

Page 2-9Page 2-9

Ventilator Parameters

Ventilator ParametersVentilator Parameters

12-Volt External Battery

12-Volt External Battery 12-Volt External Battery

Capability

CapabilityCapability

LP6 Plus, LP10, and LP20 Technical Manual

The ventilator can operate from a mobile power source by connecting the ventilator to a 12 V battery and disconnecting the AC power. A

POWER SWITCHOVER

source to an external battery. A deep-cycle battery, 74 amp-hour in good condition, can operate the ventilator without recharging for approximately 24 hours. A gel-cell type battery (34 amp-hour) can operate for approximately 10 hours between recharges. The ventilator is capable of recharging an external battery, but it is less efficient than using a standard battery charger. Approximately three hours recharge time is required for each hour of use

alarm signals the change from an AC power

.

Caution

CautionCaution

Internal Battery

Internal BatteryInternal Battery

Caution

CautionCaution

An external battery must be recharged immediately after use. A standard battery charger is strongly recommended.

The ventilator switches to its internal battery should the AC power source fail or the unit become disconnected from the power source. The internal battery also takes over automatically when power from an external battery becomes inadequate. A signals the change to internal power. The ventilator can operate from 30 to 60 minutes on the internal battery, depending on the charge level and on the control settings. Therefore, the internal battery should be used only for emergency power backup.

The amber tone audio alarm sounds every five minutes when the internal battery is in use. The ventilator charges the internal battery in three hours when the ventilator is connected to AC power and the switch is in any position. A discharged internal battery must be recharged for at least three hours prior to turning off the ventilator to prevent shortening internal battery life.

The internal battery must be recharged for three hours immediately after use. An external battery cannot recharge the internal battery.

INTERNAL BATTERY

light flashes continuously, and a single-

POWER SWITCHOVER

alarm

MODE

Warning

Warning Warning

Page 2-10

Page 2-10Page 2-10

If the patient’s health or safety would be jeopardized by

If the patient’s health or safety would be jeopardized byIf the patient’s health or safety would be jeopardized by long-term power failure, a reliable backup power source is

long-term power failure, a reliable backup power source is

long-term power failure, a reliable backup power source islong-term power failure, a reliable backup power source is mandatory. The caregiver and patient are cautioned not to

mandatory. The caregiver and patient are cautioned not to

mandatory. The caregiver and patient are cautioned not tomandatory. The caregiver and patient are cautioned not to regard the internal battery as long-term power backup.

regard the internal battery as long-term power backup.

regard the internal battery as long-term power backup.regard the internal battery as long-term power backup.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Accessories

AccessoriesAccessories

Accessories

AccessoriesAccessories

A number of accessories are available for the ventilator, including a printer. For details, see your Nellcor Puritan Bennett Representative.

November 2000

Page 2-11

Page 2-11Page 2-11

Specifications

SpecificationsSpecifications

Specifications

SpecificationsSpecifications

LP6 Plus, LP10, and LP20 Technical Manual

LP6 Plus, LP10, and LP20 Volume Ventilators

LP6 Plus, LP10, and LP20 Volume VentilatorsLP6 Plus, LP10, and LP20 Volume Ventilators

Power Line

Power LinePower Line

Power Usage

Power UsagePower Usage

Maximum:

Maximum:Maximum:

Nominal:

Nominal:Nominal:

Extension Cord Gauge:

Extension Cord Gauge:Extension Cord Gauge:

External Battery:

External Battery:External Battery:

Internal Battery:

Internal Battery:Internal Battery:

Type

TypeType

Front Panel Controls

Front Panel ControlsFront Panel Controls

Alarm Silence/Reset:

Alarm Silence/Reset:Alarm Silence/Reset:

Battery Test:

Battery Test:Battery Test:

Low Alarm:

Low Alarm: R

Low Alarm:Low Alarm:

High Alarm/Limit:

High Alarm/Limit:High Alarm/Limit:

Vo lu m e:

Vo lu m e:Vo lu m e:

Breath Rate:

Breath Rate:Breath Rate:

Inspiratory Time

Inspiratory Time R

Inspiratory TimeInspiratory Time

Breathing Effort:

Breathing Effort:Breathing Effort:

Motor:

Motor:Motor: Pump:

Pump:

Pump:Pump:

Mode:

Mode:Mode:

110 VAC range (100-127 VAC) or 220 VAC range (220-240 VAC), 50/ 60 Hz, external voltage selector switch.

630 kW per year 315 kW per year Use three-conductor cord only; up to 49’, use 18 gauge cord; up to 99’, use 16 gauge cord; up to 200’, use 14 gauge cord Approximately 20 hrs operation with 75-80 amp-hour 12 VDC deepcycle, gel-cell battery. Approximately 10 hrs operation with 35-40 amp-hour 12 VDC deep-cycle, gel-cell battery Approximately one hour operation

Volume ventilator Brushless induction

Piston, 100-2200 ml tidal volume capability

Push-button to pre-silence alarms before events (LP20 only), silence alarms during events, or reset alarms after events; used with Battery Test button to read machine operating hours on Patient Pressure meter Push-button to show battery charge level on the lower window of Patient Pressure meter (unit must be operating on battery) Rotary switch to set ventilator operating mode: Standby, Assist/ Control, SIMV, or Pressure Cycle

otary switch to set limit for Low Pressure alarm: 2-32 cmH2O in increments of 2 cmH

Rotary switch to set limit for High Pressure alarm (Assist/Control, SIMV modes), or limit for Pressure Cycle mode: 15-90 cmH

increments of 5 cmH

Push-to-turn knob to set volume: continuously adjustable from 100 to 220 ml Rotary switch to set breathing rate: 1-20 BPM in increments of one BPM, and 22-38 BPM in increments of two BPM

otary switch to set time for delivery of set volume: 0.5-1.0 sec. in increments of 0.1 sec.; 1.2 sec.; and 1.5-5.5 sec. in increments of

0.5 sec. Push-to-turn knob to set pressure level for detecting breathing effort: continuously adjustable from -10 to +10 cmH

O

2

O in

2

O

2

O

2

Page 2-12

Page 2-12Page 2-12

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Limit

Pressure Limit (LP10, LP20):

Pressure Limit Pressure Limit

Input

InputInput

Outputs

OutputsOutputs

Indicators

IndicatorsIndicators

(LP10, LP20):

(LP10, LP20):(LP10, LP20):

Patient Pressure:

Patient Pressure:Patient Pressure:

Patient Air

Patient Air::::

Patient AirPatient Air

Exhalation Valve:

Exhalation Valve:Exhalation Valve:

Normal Events

Normal EventsNormal Events

Alarms:

Alarms:Alarms:

Audible Alarms:

Audible Alarms:Audible Alarms:

Specifications

SpecificationsSpecifications

Locking knob sets pressure limit level from 15-50 cmH2O or Closes off the pressure limit feature

Port for connection to the proximal pressure line of the patient circuit

22 mm tube for connection to the bacteria filter Port for connection to the exhalation valve of the patient circuit

Patient Pressure Meter: Displays patient pressure -10 to +100

O; also displays battery charge and machine hours of opera-

cmH

2

tion when appropriate buttons are pressed.

Breathing Effort:

breathing effort. Power: LEDs to indicate operating power source: green AC Pwr/Batt Charge, amber External Battery, flashing amber Internal Battery. Flashing Red LEDs: Low Pressure/Apnea, Low Power, High Pressure, Setting Error, Power Switchover

Double-Pulsed Tone: Low Pressure/Apnea (LP20 only) Pulsating Tone: Low Pressure/Apnea (LP6 Plus, LP10), Low Power,

High Pressure, Setting Error, Power Switchover Steady Tone: Loss of microprocessor control, depleted internal battery Reminder Tone: Every five min. when powered by internal battery, and each time accessory printer generates a report

Green LED activated by adequate patient

Rear Panel Controls

Rear Panel ControlsRear Panel Controls

AC Circuit Breaker:

AC Circuit Breaker: Internal to the AC power switch (1 for on, 0 for off)

AC Circuit Breaker:AC Circuit Breaker:

Inputs

InputsInputs

Inlet Filter:

Inlet Filter:Inlet Filter:

External Battery:

External Battery:External Battery:

Communication Port

Communication PortCommunication Port

Outputs

OutputsOutputs

Ve nt

Ve nt ::::

Ve ntVe nt

Communications Port

Communications Port::::

Communications PortCommunications Port

Alarm:

Alarm:Alarm:

Alarm Output: (LP20 only)

Alarm Output: (LP20 only)Alarm Output: (LP20 only)

November 2000

Intake for patient air, screw-off cap for filter change Connection for 12 VDC battery Calibration information during service procedure

Cooling vent for internal ventilator components Connection for optional printer or display Connection for Remote Alarm accessory Factory default is normally open relay, 1.67 Hz 50% duty cycle

open/closed for Low Pressure alarms; closed for all other alarm conditions and when mode is set to Standby. Can be changed to normally closed; call Technical Service (800 497-3787) for details. 32 VDC @ 0.5 A

Page 2-13

Page 2-13Page 2-13

Specifications

SpecificationsSpecifications

LP6 Plus, LP10, and LP20 Technical Manual

Environment

EnvironmentEnvironment

Operating

Operating::::

OperatingOperating

Maintenance

MaintenanceMaintenance

Dimensions

DimensionsDimensions

Weight

WeightWeight

Ven t i l a t o r y F ac t o r s

Ven t i l a t o r y F ac t o r sVen t i l a t or y Fa c to r s

Resistance Factor:

Resistance Factor:Resistance Factor:

Emergency Pressure Relief:

Emergency Pressure Relief:Emergency Pressure Relief:

Storage:

Storage: -

Storage:Storage:

Flow:

Flow:Flow:

Do not use or store in the presence of strong electromagnetic fields. 5°-40°C (41°-104° F), 10-90%RH

15°-50°C (5°-122°F), 10-90% RH; when moving from a non-operating to an operating environment, allow a minimum of one hour temperature stabilization before use

Preventive maintenance must be performed by qualified personnel every 6000 hours or recertification every 12 months, whichever occurs first

9.75" x 14.5" x 13.25" (24.6 x 36.8 x 33.6 cm)

~34 pounds (15.5 kg)

<0.05 cmH2O/LPM

Approximately 100 cmH2O

20-100 LPM

Page 2-14

Page 2-14Page 2-14

November 2000

3 Testing

3 Testing3 Testing

This section provides instructions for verifying the general operation of the ventilator on a routine basis. Use this procedure to verify operation of a new ventilator before use with a patient.

Operational verification should be performed on a monthly basis by a qualified operator, or by a trained hospital or home care service technician, to ensure that the ventilator is operating as intended by the manufacturer.

An operational checklist, located at the end of this section, should be reproduced and used each time a verification is performed. A copy of the completed checklist should be maintained in the health care provider’s file.

Simple procedures, such as the Daily Safety Check (listed in the User’s Manual), and oxygen percentage verification (when required), should be performed at least once daily when the ventilator is in 24 hour use.

The Monthly Safety Check (listed in the User’s Manual) provides an additional test which the caregiver must perform.

November 2000

Note

This procedure was designed to minimize the need for special test equipment, and to eliminate the need for disassembly of the ventilator. These restrictions limit the accuracy of tests involving time and rate; such tests are marked with an asterisk. Before accepting or rejecting a unit based on these tests, ensure that the results are not due to procedural error.

Page 3-1

Page 3-1Page 3-1

Scope

ScopeScope

Scope

ScopeScope

LP6 Plus, LP10, and LP20 Technical Manual

These procedures verify operation without use of special calibration equipment, and without disassembling the ventilator.

Note

Warning

WarningWarning

Calibration and testing beyond the scope of this manual should be preferred to an authorized service technician.

The checkout procedure in this section includes:

• Visual inspection of controls, attachments, accessory items, and

external surfaces.

• Power functions, including battery recharging.

• Control modes: Assist/Control, SIMV, Pressure Cycle.

• Key Operational Parameters, including volume delivered, breath-

ing rate, inspiratory time, pressure limiting, and trigger sensitivity (breathing effort).

• All alarms and indicator functions.

• Patient circuit functions and possible leaks.

Do not use the ventilator if it does not pass all of the veri-

Do not use the ventilator if it does not pass all of the veri-Do not use the ventilator if it does not pass all of the verification procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-fication procedures. Refer the ventilator to a Nellcor Puritan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.tan Bennett Service Technician for repair and calibration.

Note

Page 3-2

Page 3-2Page 3-2

Time and rate tests marked with an asterisk have limited accuracy. Before accepting or rejecting a unit based on these tests, ensure that the results are not due to procedural error.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Equipment

Equipment Equipment

Equipment

EquipmentEquipment

In addition to the ventilator, the following Nellcor Puritan Bennett equipment is required for a complete operational verification test:

• Patient Circuit with test lung

• Exhalation Manifold Valve

• Bacteria Filter

• DC Power Cable Assembly

• 12 VDC Battery

Refer to the table below for a listing of required test equipment and recommended supplier.

Test Equipment Accuracy

Test Equipment AccuracyTest Equipment Accuracy

Supplies

SuppliesSupplies

Equipment Recommended Supplier

Respirometer (hand held) Wright

Fraser-Harlake

Ferrairs Medical

Stop Watch Any

Syringe (10cc or larger) Any

Tubing (1/8" I.D.) Any

Ascertain the accuracy of any test equipment being used for operational verification. Make certain that the calibration procedures and date comply with the test instrumentation requirements adopted by the testing organization.

❒ Isopropyl Alcohol (a cleaner)

❒ Absorbent wipes or clean towels or cloths

November 2000

Page 3-3

Page 3-3Page 3-3

Procedure

ProcedureProcedure

Procedure

ProcedureProcedure

Visual Inspection

Visual InspectionVisual Inspection

Warning

WarningWarning

Cleaning

CleaningCleaning

LP6 Plus, LP10, and LP20 Technical Manual

Operational verification should be performed by a qualified operator or service technician familiar with the function, setup, and operation of the ventilator. For basic operational information, refer to the LP6 Plus and LP10 User’s Manual or the LP20 Clinician’s Manual.

Do not use the ventilator if it does not pass all of the veri-

Do not use the ventilator if it does not pass all of the veri-Do not use the ventilator if it does not pass all of the verification procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-fication procedures. Refer the ventilator to a Nellcor Puritan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.tan Bennett Service Technician for repair and calibration.

Prior to inspecting and testing the ventilator, clean the exterior with a bactericidal or germicidal agent. Use isopropyl alcohol on the display panel. Do not allow liquid cleaning agents to penetrate the

inside of the ventilator.

Warning

Cabinet

CabinetCabinet

Display Panel

Display PanelDisplay Panel

Control Panel

Control PanelControl Panel

Any liquid leaking into the ventilator or its connections

Any liquid leaking into the ventilator or its connectionsAny liquid leaking into the ventilator or its connections may damage the unit or result in an electrical shock haz-

may damage the unit or result in an electrical shock haz-

may damage the unit or result in an electrical shock haz-may damage the unit or result in an electrical shock hazard.

ard.

ard.ard.

Examine the cabinet for scratches, dents, or deformities. Screw seals on the side panel covers should be intact. Side mounting brackets should be securely attached. Rubber feet should be in place and not broken or cracked.

Check the display panel for cracks or breaks. Check the meter window for scratches and debris. The meter needle should be within one division of -10.

Open the magnetically secured control panel door. Inspect each control knob to ensure it is not chipped, broken or loose on its shaft. Make certain the press-to-turn knobs ( operate correctly. Check the indexing of the knobs. Turn them to their left and right limits to insure proper alignment at both limits and to assure they have not slipped on their respective shafts. If misalignment is detected, calibration should be verified by an authorized Nellcor Puritan Bennett Service Technician.

VOL UME

and

BREATHING EFFORT)

Page 3-4

Page 3-4Page 3-4

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Front Panel Connection

Front Panel ConnectionFront Panel Connection

Rear Panel

Rear PanelRear Panel

Inlet Air Filter

Inlet Air FilterInlet Air Filter

Procedure

ProcedureProcedure

Check the front panel connection ports for cracks, dents or bent tubes. Ensure that they are free of foreign matter. LP10 or LP20: Inspect the ken, or loose on its shaft. Make sure that the outer ring locks the small, inner knob.

Check the rear panel for dirt, or damage. Examine the power cord for damaged insulation. Check the plug for bent pins or breaks. Examine the attachment and unbent connector pins.

Unscrew the cap to the inlet air filter, and check the air filter for cleanliness. Replace the air filter when it becomes discolored. Insert a clean filter so any printing is towards the front of the ventilator.

PRESSURE LIMIT

EXTERNAL BATTERY

knob to ensure that it is not chipped, bro-

,

and

COMMUNICATIONS PORT

for secure

Caution

CautionCaution

Caution

CautionCaution

This filter should be checked weekly (or daily if the ventilator is being used for transport or in an outdoor environment). A blocked filter may cause setting error alarms as well as serious damage to the ventilator.

Correct any problems found during the visual inspection before proceeding to unit checkout.

November 2000

Page 3-5

Page 3-5Page 3-5

Procedure

ProcedureProcedure

Control Settings

Control SettingsControl Settings

LP6 Plus, LP10, and LP20 Technical Manual

Unless otherwise stated, set the controls to the standard settings listed in the table below.

Control Setting

MODE Standby

Connections

ConnectionsConnections

LOW ALARM 2 cmH

HIGH ALARM/LIMIT 90 cmH

O

2

O

2

VOLUME 2.2 Liter

BREATH RATE 6 BPM

INSPIRATORY TIME 1.5 seconds

BREATHING EFFORT -5 cmH

PRESSURE LIMIT (LP10 and LP 20

Fully clockwise

O

2

ONLY)

AC POWER SWITCH OFF

Unless otherwise specified, make the following external connections to the ventilator:

• Power Plug to 110 VAC (three prong, grounded)

• Patient hose (with exhalation manifold) to

panel)

PATI E N T A I R

port (front

Page 3-6

Page 3-6Page 3-6

• 500 ml Test Lung to exhalation manifold

• Proximal Pressure tube to

• Exhalation valve tube to

• Connect to a fully charged external battery.

• (Optional) Calibrator to communication port (back panel)

PATIENT PRESSURE

EXHALATION VALVE

port (front panel)

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Procedure

ProcedureProcedure

Patient Circuit Leak Test

Patient Circuit Leak TestPatient Circuit Leak Test

The following procedure tests the patient circuit for leaks. Ensure that no leaks are present before continuing with subsequent verification procedures. Note that this test is not intended to replace the self-test function of the ventilator. The self-test function performs several additional inspection steps to verify correct operation of the ventilator.

1. Turn the ventilator’s power switch to ON.

2.

Set the unit to run for a minute to stabilize peak pressure readings (can be monitored by pushing the PEAK button on the calibrator).

3.

Obtain a syringe (10 cc or larger) and attach a short length of 1/8" I.D. to the tip. Pull the plunger out as far as possible.

4.

Immediately after a breath is completed and all air has been released through the exhalation manifold, remove the clear tub-

ing from the top of the exhalation manifold. Quickly attach the syringe to the top of the exhalation manifold. Supply a slight amount of air with the syringe (approximately 3 cc).

MODE

switch from Standby to Assist/Control. Allow the

5. Allow the ventilator to give one breath, then turn the Mode

switch from Assist/Control to Standby.

Caution

CautionCaution

6.

Monitor the patient circuit pressure on the front panel meter or the calibrator (by pushing the PRESS button). The time required for the pressure to drop by 10 cmH 10 seconds in order to pass. Supply an extra cc of air from the syringe every several seconds if necessary to prevent the exhalation manifold from opening.

7.

If the loss of pressure is too high, make sure that the Pressure Limit Control is fully clockwise (LP10 and LP20 only). Check the patient circuit. Make sure all hose fittings are tight. Check the exhalation valve and make sure that it seats properly in the manifold. Check the test lung for a secure fit or leaks.

Do not overtighten the Pressure Limit Control. Overtightening can cause system leaks.

8.

Repeat the leak test procedure following any component modifications. If leaks persist, refer the unit to an authorized Nellcor Puritan Bennett Service Technician.

9.

Disconnect the syringe and reconnect the exhalation valve tubing to the exhalation manifold.

O/hPa must be greater than

2

November 2000

Page 3-7

Page 3-7Page 3-7

Procedure

ProcedureProcedure

LP6 Plus, LP10, and LP20 Technical Manual

Power Checkout

Power CheckoutPower Checkout

The following procedure verifies that the ventilator is properly powered by both AC and DC power sources, that power switchover occurs upon source power failure, and that the proper alarm and indicators activate.

Prior to beginning the checkout procedure, place all operating controls in the position identified under Control Settings on page 3-6 in this section. Record results on a copy of the Operational Checklist, located at the end of this chapter.

Switch/Action From To Desired Response

AC Power Switch OFF ON Indicator lights flash; AC PWR/BATT

CHARGE light on; ventilator cycles once; pressure gauge at ± 1 division.

MODE Standby Assist/

Control

AC Power Switch ON OFF POWER SWITCHOVER light on; alarm

Alarm silence Press Alarm and indicator OFF

Disconnect External Battery POWER SWITCHOVER light on; alarm

Alarm silence Press Audible and visual alarms OFF

BATTERY TEST PRESS &

hold

AC Power Switch OFF ON Internal Power LIGHT OFF; AC PWR light on

BATTERY TEST ALARM SILENCE

MODE Assist/

Press & hold at same time

Standby Completes Power Checkout

Control

Alarm sounds and all indicators light for

2.0 ± 0.5 seconds; AC PWR remains on; ventilator cycles at 10 ± 1 BPM; gauge indicates pressure excursion.

sounds; EXTERNAL BATTERY light on; ventilator continues cycles.

sounds; INTERNAL BATTERY light on; ventilator continues cycling.

Gauge indicates Internal Battery condition; INTERNAL BATTERY light flashes

Patient pressure meter reads ventilator operating time (i.e., a reading of 30 = 6000 operating hours).

Page 3-8

Page 3-8Page 3-8

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Assist/Control

Assist/Control Mode Checkout

Assist/Control Assist/Control

Mode Checkout

Mode CheckoutMode Checkout

Procedure

ProcedureProcedure

Verify all operational functions with the ventilator in the Assist/ Control Mode Checkoutmode by performing the following. Record the results on a copy of the Operational Checklist located at the end of this chapter.

Prior to beginning the checkout procedure, place all operating controls in the position identified under Control Settings on page 3-6.

Note

Switch/Action From To Desired Response

MODE Standby Assist/

Time breaths Rate equals 10 ± 1 BPM

BREATHING EFFORT -5 1 line width

Squeeze or extend test lung between controlled breaths

BREATHING EFFORT Near 0 +1 Ventilator auto cycles

BREATHING EFFORT + 1 -5 Completes Breathing Effort check

Replace test lung and patient hose with respirometer; Block exhalation port

Volume variation will be a function of the respirometer accuracy, which is flow rate dependent. See the respirometer manual. Ventilator volume change occurs at a rate of 100 ml/breath cycle.

Alarms/lights test; AC PWR LED on; gauge

Control

(-) from zero

Negative pressure (slightly under zero)

registers pressure

Set Breathing rate continues; BREATHING EFFORT LED off

Gauge registers (-) pressure effort; BREATHING EFFORT LED lights; ventilator delivers assisted breath

Volume reads 0.5 ± 100 ml

VOLUME 0.5 1.0 Volume reads 1.0L ± 120 ml

VOLUME 1.0 2.0 Volume reads 2.0L ± 200 ml

VOLUME Replace test lung and patient hose

Measure I-time Should be 1.5 seconds ± 10%

VOL UME 0.5 1.0

INSPIRATORY TIME 1.5 3.0 Should be 3.0 seconds ± 10%

INSPIRATORY TIME 3.0 4.5 SETTING ERROR alarm

November 2000

2.0 0.5 Completes Volume check

Page 3-9

Page 3-9Page 3-9

Procedure

ProcedureProcedure

LP6 Plus, LP10, and LP20 Technical Manual

Switch/Action From To Desired Response

Reset INSPIRATORY TIME 4.5 1.5 Alarm, LED off; completes I-Time and Setting

Error check

HIGH ALARM/LIMIT 90 25 Pressure increase on meter stops at HIGH

LIMIT; HIGH PRESSURE LED flashes; alarm sounds

ALARM SILENCE Press Alarm off; HIGH PRESSURE LED flashes. In one

minute alarm reactivates.

VOLUME 1.0 L 0.5 L HIGH PRESSURE LED and audio alarm con-

tinue until pressure is below HIGH ALARM setting, then alarm off; LED remains on.

ALARM SILENCE/RESET Press LED extinguishes

HIGH ALARM/LIMIT 25 90 Completes HIGH PRESSURE check

Remove test lung At second breath, alarm on (double-pulsed

on LP20), LOW PRESSURE LED flashes

ALARM SILENCE Press Alarms off; LED flashes. After one minute

alarm reactivates.

Replace test lung Alarm off (LP20 only)

ALARM SILENCE Press LED and alarm off. Completes LOW PRES-

SURE check

BREATHING EFFORT -5 1 line width

(-) from zero

BREATH RATE simulate breaths by extending test lung between breaths

Cease spontaneous breaths In 10 ± 0.5 seconds, alarm on, APNEA LED

ALARM SILENCE Press Light & alarm off; 10 BPM delivery stops; in

BREATH RATE 4 10 Completes APNEA test and Assist/Control

BREATHING EFFORT Near 0 -5

MODE Assist/

10 4 BREATHING EFFORT LED light;

ventilation occurs, synchronized to patient effort.

on; ventilator delivers 10 ± 1 BPM

10 ± 0.5 seconds alarm reactivates

verification

Standby

Control

Page 3-10

Page 3-10Page 3-10

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

SIMV Mode Checkout

SIMV Mode CheckoutSIMV Mode Checkout

Procedure

ProcedureProcedure

This procedure verifies those operational functions unique to the SIMV mode. Those functions which are verified in the Assist/Control mode, are not repeated. Therefore, conduct Assist/Control operational verification in addition to SIMV.

Prior to beginning the checkout procedure, listed on the following page, place all operating controls in the position identified under Control Settings on page 3-6. Record results on a copy of the Operational Checklist located at the end of this section.

Note

In SIMV mode, the ventilator coordinates assisted breaths with the patient’s inspiratory effort; therefore, measured breath rates will vary somewhat from the rate set on the

BREATH RATE

control.

November 2000

Page 3-11

Page 3-11Page 3-11

Procedure

ProcedureProcedure

LP6 Plus, LP10, and LP20 Technical Manual

Switch/Action From To Desired Response

AC POWER SWITCH OFF ON Indicator light flash; AC PWR/BATT

CHARGE light on; ventilator cycles once; pressure gauge at 0 ± 1 1 division

MODE Standby SIMV Alarms and indicators test

BREATH RATE 10 6

BREATHING EFFORT -5 -1

Squeeze test lung to stimulate 2 or 3

spontaneous breaths at about 6

second intervals

Cease spontaneous effort A mandatory breath will occur

BREATH RATE Within 20 seconds after switching to 4, simulate breaths

Cease spontaneous effort In 20 ± 0.5 seconds after last spon-

Alarm Silence Press Light and alarm off; 10 BPM deliv-

ALARM SILENCE Press Light & alarm deactivate; 10 BPM

Within 20 seconds, simulate breaths BREATHING EFFORT LED flashes;

6 4 BREATHING EFFORT LED lights; venti-

BREATHING EFFORT LED flashes; pressure gauge dips negative; ventilation occurs synchronized to simulated effort

within 20 seconds after spontaneous breaths cease and will continue at the 6 ± 1 BPM rate; no alarms activate.

lation occurs, synchronized to effort.

taneous breath, alarm on, Apnea LED on; ventilator delivers 10 ± 1 BPM

ery stops in 20 ± 0.5 seconds; alarm reactivates

delivery stops.

breaths delivered; light and alarm off

MODE SIMV Standby This completes SIMV check.

Page 3-12

Page 3-12Page 3-12

November 2000

Procedure

ProcedureProcedure

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Cycle Mode Checkout

Pressure Cycle Mode CheckoutPressure Cycle Mode Checkout

The following procedure only verifies those operational functions unique to the Pressure Cycle mode of the ventilator. Those functions which are verified in the Assist/Control mode are not repeated here. Therefore, conduct Assist/Control operational verification in addition to pressure limit mode checkout.

Prior to beginning the checkout procedure, place all operating controls in the position identified under Control Settings on page 3-6 in this section. Record results on a copy of the Operational Checklist located at the end of this section.

Switch/Action From To Desired Response

AC POWER SWITCH OFF ON Indicator lights flash; AC PWR/

BATT CHARGE light on; ventilator cycles once; pressure gauge at 0 ± 1 division

MODE Standby Pressure Cycle Alarms and indicators test;

ventilator commences cycling at 10 ± 1 BPM

VOL UME 0.5 1.0

HIGH ALARM/LIMIT Observe gauge

BREATHING EFFORT Simulate spontaneous breathing by extending test lung between breaths

HIGH ALARM LIMIT 25 90 This completes Pressure Lim-

MODE Pressure Cycle Standby

90 25 Pressure increase on meter

stops when HIGH LIMIT is achieved; HIGH PRESSURE alarm does not activate.

-5 1 line width (-) from zero

BREATHING EFFORT LED flashes; ventilator cycles with each simulated breath; each inhalation ends when HIGH LIMIT is achieved.

ited mode check

November 2000

Page 3-13

Page 3-13Page 3-13

Procedure

ProcedureProcedure

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Limit Checkout (LP10, LP20)

Pressure Limit Checkout (LP10, LP20)Pressure Limit Checkout (LP10, LP20)

The following procedure only verifies those operational functions unique to the Pressure Limit function of the LP10 ventilator. Those functions which are verified in the Assist/Control mode are not repeated here. Therefore, conduct Assist/Control operational verification in addition to Pressure Limit Checkout.

Prior to beginning the checkout procedure, place all operating controls in the position identified under Control Settings on page 3-6. Record results on a copy of the Operational Checklist located at the end of this chapter.

Switch/Action From To Desired Response

AC POWER SWITCH OFF ON Indicator light flash; AC

PWR/BATT CHARGE light on; ventilator cycles once; pressure gauge at 0 ± 1 division

MODE Standby Assist/Control Alarms and indicators test;

ventilator cycles at 10 q1 1 BPM

VOLUME 0.5 liter 0.8 liter Patient pressure reaches

~40 cmH

PRESSURE LIMIT CONTROL

Hold the test lung for several cycles to prevent it from inflating

MODE Assist/Control Standby Completes pressure limit

VOLUME 0.8 liter 0.5 liters

Full clockwise rotation

Push in the outside locking ring and turn the small knob counterclockwise until the patient pressure reads a peak of 20 cmH

O

2

The patient pressure consistently reads peaks of 20 ± 4 cmH20 over five minutes.

The patient pressure peaks at 22 ± 6 cmH

exhaust occurs near the Pressure Limit Control. The Patient Pressure returns to 20 ± 4 cmH

lung is released.

control checkout

O

2

O. Increased

2

O after the test

2

Pressure Limit Control Previous setting Full clockwise rotation

Page 3-14

Page 3-14Page 3-14

(do not overtighten)

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Operational Checklist

Operational ChecklistOperational Checklist

The operational checklist at the end of this chapter should be reproduced and used each time a verification is performed. A copy of the

completed checklist should be kept in the health care provider’s file.

Warning

WarningWarning

Operational Checklist

Operational ChecklistOperational Checklist

Do not use the ventilator if it does not pass all of the veri-

Do not use the ventilator if it does not pass all of the veri-Do not use the ventilator if it does not pass all of the verification procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-

fication procedures. Refer the ventilator to a Nellcor Puri-fication procedures. Refer the ventilator to a Nellcor Puritan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.

tan Bennett Service Technician for repair and calibration.tan Bennett Service Technician for repair and calibration.

November 2000

Page 3-15

Page 3-15Page 3-15

Operational Checklist

Operational ChecklistOperational Checklist

LP6 Plus, LP10, and LP20 Technical Manual

Page 3-16

Page 3-16Page 3-16

November 2000

Ventilator Operational Checklist

Ventilator Operational ChecklistVentilator Operational Checklist

Owned by:

User: Serviced by:

Address: Address:

City: City:

State: State, Zip

Zip Service Representative:

User Phone:

Test Operation Test R esults Pass Fail

Visual Inspect As specified

Control Settings Procedure Not applicable

Connections Procedure Not applicable

Patient Circuit Leak Test Perform Test As specified

Power Perform Tests As specified

Assist/Control Mode Perform Tests As specified

SIMV Perform Tests As specified

Serial # Hour Meter Reading: Date:

❒❒

Pressure Cycle Mode Perform Tests As specified

Pressure Limit (LP10, LP20) Perform Tests As specified

Comments:

Signature: Date:

❒❒

Ventilator Operational Checklist

Ventilator Operational ChecklistVentilator Operational Checklist

LP6 Plus, LP10, and LP20 Technical Manual

Page 3-18

Page 3-18Page 3-18

November 2000

4 Theory of Operation

4 Theory of Operation4 Theory of Operation

This section provides an overview of the functions of the ventilator to a level necessary to supplement the intended level of maintenance. A set of schematic diagrams is located at the end of this section.

General Description

General DescriptionGeneral Description

The ventilator is a compact, microprocessor-controlled volume ventilator delivering tidal volumes from 100 to 2200 ml, inspiratory times ranging from 0.5 to 5.5 seconds, and breathing rates from 1 to 38 BPM. The system functions in Assist/Control, SIMV, or Pressure Cycle modes. It permits PEEP ventilation with a PEEP-compensated assist sensitivity control. A pressure Limit control (LP10 and LP20) is provided primarily for use with patients with uncuffed tracheostomy tubes.

The ventilator uses an electronically controlled piston pump that operates independently from a high pressure gas source or compressor. Intended for 110 VAC or 220 VAC primary power, the ventilator also operates for extended periods from 12 VDC power without compromising operational specifications. An internal DC source provides emergency power for up to one hour (when properly charged) should all external power sources fail.

A brushless motor increases reliability by eliminating components such as brushes, belts, and armatures. It also decreases periodic maintenance, plus provides a more controllable system.

Volume is adjusted by a computer chip that controls the length of the return stroke.

An integral molded manifold eliminates the need for extensive internal tubing, and greatly improves the parallel IMV breathing path. A 62 micron gross particulate filter enhances air filtration. All inlet passages and check valves are sized to minimize airflow resistance.

An elapsed time clock monitors operating hours. The clock is tied to existing controls and to the accurate time check without disassembly. The ventilator can provide operating parameters and waveforms to an optional printer.

PATIENT PRESSURE

PATIENT PRESSUREPATIENT PRESSURE

gauge to provide a rapid and

November 2000

Page 4-1

Page 4-1Page 4-1

Pneumatic System Overview

Pneumatic System OverviewPneumatic System Overview

Pneumatic System Overview

Pneumatic System OverviewPneumatic System Overview

Refer to Functional Block Diagram at the end of this section. Numbers in parentheses refer to component identification numbers on the diagram.

Air is entrained into the ventilator through a 0.3 micron inlet filter (1). Negative pressure for entrainment is accomplished by the withdraw stroke of the piston in the mechanical piston pump assembly (5). Passing through an inlet check valve (4), the air enters the cylinder and becomes pressurized by the forward piston stroke. Air exits through a pump outlet check valve (10) and through a 62 micron, stainless steel gross particulate filter (11). Before exiting to the patient through the additional 40 mesh gross particle screen (13). A mechanical pressure limit system (LP10 and LP20) uses an adjustable spring to close an opening between the patient air path and atmosphere. As the pressure in the patient air path increases beyond the force of the spring, air escapes and the pressure is regulated.

PAT I E NT A IR

PAT I E NT A IRPAT I E NT A IR

LP6 Plus, LP10, and LP20 Technical Manual

outlet tube, the air passes through one

Intermittent Mandatory Ventilation (IMV) is accomplished by use of a parallel path incorporated into the manifold. This path bypasses the pump and allows air to move directly to the after passing through the inlet filter (1) and an inlet check valve (3).

On the forward pumping stroke, a small segment of air delivered to the patient outlet tube is routed through a three-way electrical exhalation solenoid valve (14). This portion of air exits through the exhalation valve port and is delivered to the patient manifold to expand the exhalation mushroom valve and allow ventilation of the patient’s lungs.

During the exhalation phase of the ventilatory cycle, the exhalation solenoid valve de-energizes, relieving pressure on the exhalation mushroom valve, permitting patient air to exhaust to atmosphere. The air in the exhalation mushroom is routed back through the valve and dumped to atmosphere inside the ventilator.

A patient pressure sensing tube passes from the proximal pressure line to a pressure transducer (51). This transducer is a solid state, sealed chamber, strain gauge device. The pressure transducer functions from -10 cmH

positive exhalation pressures, using the appropriate patient air lines and accessories.

O to + 100 cmH2O, allowing both negative and

2

PATIENT AIR

PATIENT AIRPATIENT AIR

outlet tube

Page 4-2

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November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Pumped air is delivered through a 22 mm tapered outlet tube with locking ribs. Many of the standard patient hoses that are commercially available can be used. Pressure is indicated on a front panel

PATIENT PRESSURE

PATIENT PRESSUREPATIENT PRESSURE

gauge (52). The gauge reading is generated by the microprocessor from signals sensed by the pressure transducer (51). The gauge also identifies the condition of connected batteries when the

ALARM SILENCE

the

ALARM SILENCEALARM SILENCE

BATTERY TEST

BATTERY TESTBATTERY TEST

buttons simultaneously registers elapsed time from

0-20,000 hours for the scale 0-100.

A mechanical relief valve (2) prevents excessive pressure (greater than 100 cmH

O) by providing a release to atmosphere. This valve is

2

a mechanically actuated, spring return, one-way leaf valve (2).

Mechanical System Overview

Mechanical System OverviewMechanical System Overview

Mechanical System Overview

Mechanical System OverviewMechanical System Overview

button is pressed. Pressing the

BATTERY TEST

BATTERY TESTBATTERY TEST

and

Refer to the Functional Block Diagram at the end of this section. Numbers in parentheses refer to the component numbers on the diagram.

The major mechanical elements of the ventilator are the motor/gearbox (8 and 9), the piston pump (5), the pressure relief valve (2), and the exhalation solenoid valve (14).

The basic mechanical drive is a brushless DC motor driving a 100 to 1 gearbox. The gearbox drives the crank arm, which in turn drives a piston within a seven-inch diameter cylinder. An "end-of-stroke" sensor (7) determines when the machine is to commence counting the return stroke for positioning of the next volume stroke.

The pump piston retracts a selected number of Hall Effect sensor codes (24 per motor revolution) until it reaches the correct piston position for the next stroke. At the end of the air delivery stroke, the piston reverses direction, passing over bottom dead center with each breath. This creates a pendulum action which allows shorter inspiratory times with low volumes. The microprocessor stops the motor drive once the piston retracts to its correct starting position.

If the patient pressure reaches the high alarm/limit, the crank arm reverses the piston without passing over bottom dead center.

November 2000

An over pressure relief valve (2) ensures a dump to atmosphere when excess pressure is created. This valve is mechanically actuated and preset to release at a pressure between 90 and 100 cmH

O, using a spring return.

2

Page 4-3

Page 4-3Page 4-3

Electrical System Overview

Electrical System OverviewElectrical System Overview

The electrically controlled exhalation solenoid valve (14) mechanically provides a path to inflate the mushroom exhalation valve in the patient manifold assembly to permit inflation of the patient’s lungs.

Electrical System Overview

Electrical System OverviewElectrical System Overview

Refer to the Functional Block Diagram at the end of this section. Numbers in parentheses refer to component identification numbers on the diagram.

Power for the ventilator may originate from one of three sources:

• AC Power

• External Battery

• Internal Battery

AC power (110 or 220V), 50-60 Hz is automatically selected by the ventilator, if connected. Choice of 110V or 220V is selected by a switch located on the back panel.

LP6 Plus, LP10, and LP20 Technical Manual

Caution

CautionCaution

Connecting to 220V power when the switch is set for 110 will damage the unit.

The AC power path is from the line cord (20) through the two-pole power switch (18), which incorporates a two-pole, 1 Amp circuit breaker. The AC path continues through an RFI filter (17) to the 110V-220V switch, and then to the transformer, to a full wave rectifier (21), and finally to the system power bus on the power/motor board. With AC power disconnected, the power bus is supplied by an external battery (via connector 23), or by the internal 12 VDC source (22). Battery power from the bus only operates the ventilator if the position.

The power bus supplies three current-limited switching power supplies: 5V, 12V, and battery charge (13.8V on older models, 14.4V on newer models).

Switchover from AC power to external or internal battery is completely automatic. The ventilator operates from the external battery until that voltage is no longer adequate. When a switch from either AC power or external battery to internal battery occurs, an audio switchover alarm (32) sounds. The switchover occurs at an external battery voltage of approximately 11.6 VDC. If a printer is connected, a printout records this and any other alarm events, provided printer

MODE

switch is in Assist/Control, SIMV, or Pressure Cycle

MODEMODE

Page 4-4

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November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Operating Modes

Operating ModesOperating Modes

AC power is available.

The AC power switch provides the disconnect of AC power, and the mode switch on the ventilator front panel controls the operating mode. With the AC power switch ON, the ventilator will operate on AC power and will charge the batteries in all mode settings. With the AC power switch OFF, the ventilator will operate on DC power and will not charge the battery.

Power for the ventilator piston pump comes from six drive transistors functioning as the motor commutator. The drive transistors’ current produces a magnetic field in the motor. This, in turn, causes the motor to rotate under microprocessor control. Hall Effect sensors detect the position of the rotor. The drive transistors then cause the stator’s magnetic field to fluctuate, causing the 8-pole permanent magnet rotor to follow that magnetic field. The fan (35) helps dissipate motor generated heat.

Note

Operating Modes

Operating ModesOperating Modes

Standby

StandbyStandby

Assist/Control

Assist/ControlAssist/Control

Schematic diagrams of the power/motor board, logic board, and LED board are included in the back of this section.

MODE

The unit, and provides battery charge voltage (13.8V on older models,

14.4V on newer models) to either the external battery or the internal battery through the motor board. The battery charge mode is slower than a standard charger, thereby an external charger is recommended for the external battery. The battery charger has no preference for either the internal or external battery. It simply chooses the one having the lowest charge. When switching to a ventilation mode, battery charge continues, functioning equally effectively in all modes, whether the machine is running or not.

The system’s microprocessor reads the times a second and controls ventilator operation in accordance with what it reads. With the cessor initiates appropriate action only when it reads the switch position and the interrelated controls, i.e.,

INSPIRATORY TIME, BREATHING EFFORT.

INSPIRATORY TIME, BREATHING EFFORT.INSPIRATORY TIME, BREATHING EFFORT.

rate as an assister. Flow is actually set by volume and I-time. Exhalation time is a function of rate and I-time.

switch in the Standby position applies AC power to the

MODEMODE

MODE

and other switches 10

MODEMODE

MODE

switch in Assist/Control, the micropro-

MODEMODE

VOL UME , BRE AT HIN G RATE,

VOL UME , BRE AT HIN G RATE,VOL UME , BRE AT HIN G RATE,

The patient’s breathing efforts control

November 2000

Page 4-5

Page 4-5Page 4-5

Operating Modes

Operating ModesOperating Modes

LP6 Plus, LP10, and LP20 Technical Manual

When the adequate level of negative pressure, caused by patient

BREATHING EFFORT

inhalation effort and determined by the

BREATHING EFFORT

BREATHING EFFORTBREATHING EFFORT

control, is sensed by the microprocessor, appropriate signals are sent to initiate the breath. If spontaneous breathing rates fail to reach the preset rate, the microprocessor circuitry initiates a controlled breath, and continues controlled breaths at the preset rate until spontaneous breaths resume.

If spontaneous breathing or a controlled breath is not sensed once every 10 seconds, (breath rate less than 6 BPM) the apnea alarm sounds and the ventilator delivers the set volume at 10 BPM at the set inspiratory time.

Should control settings in this or any other mode demand breathing rates or flows beyond the capability of the ventilator, the setting error alarm sounds. Regardless of settings, the machine prevents I/ E ratios greater than 1:1.

During operation in this or any other mode, ventilation data, including waveforms of flow, volume, and pressure, are obtainable using the optional printer module.

SIMV

SIMVSIMV

In this mode, intermittent mandatory breaths are synchronized with the patient’s breathing effort near the rate set on the BREATH RATE

BREATH RATE

BREATH RATEBREATH RATE

control. Stacking, i.e., a mandatory breath immediately following a spontaneous breath without adequate exhalation time, is eliminated.

The ventilator delivers a mandatory breath when the

SIMV

SIMVSIMV

mode is entered. It then establishes a time period during which patient effort is monitored, and readies itself to deliver a breath. If the patient makes sufficient effort to trigger a breath during the time period (determined by the BPM setting), then the ventilator synchronizes a delivered breath to the effort. Any additional breaths taken by the patient during the same time interval are not assisted by the ventilator. If the patient does not make sufficient effort to trigger a breath by the end of the time period, the ventilator delivers a mandatory breath.

At the end of each time period, the ventilator starts a new time period and monitors for the first patient effort sufficient to trigger a breath.

At settings of 1-5 BPM, the ventilator will enter the apnea mode if there is not sufficient patient effort for 20 seconds. At that time the apnea alarm sounds and 10 breaths per minutes are delivered. If the patient resumes breathing spontaneously, the ventilator automatically shifts from apnea to the SIMV mode.

Page 4-6

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November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Boards and Major Components

Boards and Major ComponentsBoards and Major Components

At

BREATH RATE

mandatory breaths at the preset breath rate and will not sound an apnea alarm.

Pressure Cycle

Pressure CyclePressure Cycle

Boards and Major Components

Boards and Major ComponentsBoards and Major Components

Logic Board

Logic BoardLogic Board

In the Pressure Cycle mode, the ventilator functions identically as in the Assist/Control mode with the following exception. The ventilator delivers gas flow from the piston until the high pressure limit is reached. If the high pressure limit is achieved prior to end of stroke, motor rotation reverses to retract the piston, and the exhalation valve is depressurized. The volume set on the therefore not delivered to the patient.

In Pressure Cycle mode, the high pressure alarm is activated only if the peak pressure achieved exceeds the more that 10 cmH cmH

O.

2

The logic board contains the microprocessor, the ROM, the EEPROM, and a real timeclock. The real time clock/calendar provides date and time data for the remote printer.

settings of 6 BPM or above, the ventilator delivers

O. The maximum setting of the limit control is 90

2

VOL UME

VOL UMEVOL UME

HIGH PRESSURE

HIGH PRESSUREHIGH PRESSURE

control is

limit setting by

Power/Motor Board

Power/Motor BoardPower/Motor Board

LED Board

LED BoardLED Board

Exhalation Solenoid Valve

Exhalation Solenoid Valve Exhalation Solenoid Valve

Pressure Transducer

Pressure TransducerPressure Transducer

Fan

FanFan

November 2000

The power/motor board contains the voltage regulators, battery charge circuit, and the drive circuit for motor control.

This board contains the connections for the alarm and power indica-

ALARM SILENCE/RESET

tor LEDs as well as the The LED board is connected by a ribbon cable to the logic board.

This valve allows for inflation and deflation of the Patient Manifold mushroom. A 12V source activates the normally closed valve, allowing air to inflate the mushroom and thereby preventing patient exhalation during the inspiratory cycle.

This transducer indicates the patient pressure as a reading on the pressure gauge. The output voltage ranges from 0 to 5 V. At atmospheric pressure, the output voltage is 0.8 V, to allow for negative patient pressure. The logic board monitors the signal from the transducer, comparing the signal with set values.

On units with the older through-hole power/motor board, the unit’s fan operates on 12V and blows across the heat sink to help dissipate heat. The newer surface-mount power/motor does not have a heat sink, so the fan is not needed.

ALARM SILENCE/RESET

ALARM SILENCE/RESETALARM SILENCE/RESET

and

BATTERY TEST

BATTERY TESTBATTERY TEST

Page 4-7

Page 4-7Page 4-7

buttons.

Boards and Major Components

Boards and Major ComponentsBoards and Major Components

LP6 Plus, LP10, and LP20 Technical Manual

Audio Alarm

Audio AlarmAudio Alarm

Magnetic Position Sensor

Magnetic Position SensorMagnetic Position Sensor

Motor and Gearbox

Motor and GearboxMotor and Gearbox

Transformer

TransformerTransformer

RFI Filter

RFI FilterRFI Filter

AC Power Switch/Circuit Breaker

AC Power Switch/Circuit BreakerAC Power Switch/Circuit Breaker

The alarm, located on the side panel, functions as a single tone alarm. The alarm is pulsed on and off.

This magnetic sensor detects the crank to determine position. Operated on 12 V, the sensor signal goes high when no metal is present and low with metal present.

The motor is a custom made, brushless DC motor driving a 100 to 1 gearbox. The armature is stationary with a spinning 8 pole, permanent magnet rotor. The three Hall Sensors located in the stator determine motor rotation speed and position. The aluminum gearbox attaches directly to the motor.

The power transformer has a dual primary, for two separate supply voltage ranges. The transformer is protected by a thermal cutout that opens if temperature limits are exceeded.

The filter meets the requirements of U.L. 544 and U.L. 1283.

The AC Power switch controls both mains lines. The power switch contains a one-amp AC circuit breaker. Normal AC type equipment in the United States only requires that the hot line be breaker protected, however when operating on 220V outside the U.S., either line could be hot.

Rectifier

RectifierRectifier

AC Power Cord

AC Power CordAC Power Cord

Internal Battery

Internal BatteryInternal Battery

DC Circuit Breaker

DC Circuit BreakerDC Circuit Breaker

Nurse Call Board (LP20 only)

Nurse Call Board (LP20 only)Nurse Call Board (LP20 only)

Page 4-8

Page 4-8Page 4-8

This is a standard 25A Bridge Rectifier.

This cord consists of a hospital grade plug and U.L. #544 and U.L. 817 approved cord with less than 0.1 ohm impedance from the ground conductor to chassis ground.

The sealed, lead/acid battery is rated at 12 VDC.

The DC circuit breaker provides protection in addition to the fuse in the external battery cable. This circuit breaker is for the external battery only.

The remote alarm signal controls a FET, which de-energizes the relay during alarm conditions.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Accessories

AccessoriesAccessories

Accessories

AccessoriesAccessories

Printer

PrinterPrinter

External Battery

External BatteryExternal Battery

Note

The optional printer operates on 110 VAC/60 Hz and is connected to

COMMUNICATIONS PORT

the ventilator by the manent record of patient information and ventilator parameters. The printer automatically generates a print-out:

• Every four hours.

• Each time there is an alarm condition.

• Each time a setting is changed.

• Each time the battery test button is pressed.

The printer also generates a waveform diagram showing the flow, volume, and pressure characteristics of air being delivered by the ventilator. Graphs are obtained by pressing the three times in rapid succession.

This printer has been modified to meet hospital standards for leakage current. This modification may cause radio frequency or television interference. The printer is exempt under section 15.801 (c) (5) of the non-interference regulation adopted by the FCC.

The recommended battery is a sealed jellied electrolyte type with a rating of 12V, 34 amp-hour, designed as a deep cycle battery. The ventilator should run approximately 10 hours using standard settings. The battery plugs into the ventilator on the back panel using a three pin connector. Charging the battery after use requires approximately three hours of charge for every hour of use.

COMMUNICATIONS PORT

COMMUNICATIONS PORTCOMMUNICATIONS PORT

. The printer creates a per-

BATTERY TEST

BATTERY TESTBATTERY TEST

button

November 2000

The battery should be spill-proof in any position. It may be transported aboard commercial aircraft according to the following regulations:

• F.A.A. - T itle 49 C.F.R.

• C.A.B. - Air Transport Restricted Articles #1924

• I.A.T.A. - Restricted Articles Regulations #1924

Page 4-9

Page 4-9Page 4-9

System Control

System ControlSystem Control

System Control

System ControlSystem Control

LP6 Plus, LP10, and LP20 Technical Manual

All functions of the ventilator are controlled by a microprocessor. A single Z80A microprocessor, running at 4 MHz, controls the motor, alarm circuitry, battery charging system, meter drive, and solenoid valve, along with interfacing with the printer.

The microprocessor reads the switches 10 times a second and controls ventilator operation in accordance with what it finds.

The

VOL UME

VOL UMEVOL UME

value is an analog value, a voltage produced on the pot, which is converted to a digital value by U19 on the logic board. All the remaining controls,

MODE

and

LIMIT

LIMITLIMIT

conversion to be read by the microprocessor.

MODEMODE

BREATHING EFFORT

and

BREATHING EFFORTBREATHING EFFORT

INSPIRATORY TIME, BREATH RATE, LOW ALARM, HIGH ALARM/

INSPIRATORY TIME, BREATH RATE, LOW ALARM, HIGH ALARM/INSPIRATORY TIME, BREATH RATE, LOW ALARM, HIGH ALARM/

are switches which set digital codes and require no

,

controls are potentiometers. Their

Microprocessor

Microprocessor Note:

MicroprocessorMicroprocessor

There are two types of logic and power/motor boards that have been used with LP6+ and LP10: an older through-hole board and a newer surface-mount board. These can be distinguished by checking the types of components on the circuit boards, plus the absence of a power/motor board heat sink and fan assembly on surface-mount units.

Refer to the Logic Board schematic in the Schematics Chapter. The microprocessor, U28, is the heart of the system. The program is contained in two memory ICS. An EEPROM (U24 used on older through-hole board or U26 on the newer surface-mount board) stores the calibration data and becomes accessible through the use of the external calibrator. Two EPROMs (U25 and U26 used on older through-hole board or U24 and U25 on the newer surface-mount board) contain the program. The general structure of the program is that every 10 ms (100 Hz) certain high priority tasks (i.e., pressure read, printer output) are performed, then one of ten sub-programs is performed (i.e., read and compute switch setting). Thus, each sub-program is performed ten times per second. When the sub-program is complete, the microprocessor waits for another 100 Hz interrupt. In addition, the program is interrupted at 2400 Hz to perform certain high speed motor control functions.

The microprocessor sends an analog level to the motor controller, causing the motor to rotate at a speed proportional to the level. When a new volume/inspiratory time combination is set on the controls, an initial speed control level is computed and sent to the motor controller. After each stroke the actual inspiratory time is computed and compared to the set value. The speed control level is

Page 4-10

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November 2000

LP6 Plus, LP10, and LP20 Technical Manual

System Control

System ControlSystem Control

adjusted as necessary for the patient compliance/resistance. The controller limits motor drive power to an amount that will not produce excessive patient pressures or damage to the drive electronics.

Anytime the microprocessor fails to complete its program cycle, motor movement stops, all front-panel LEDs light, and a continuous alarm sounds. During internal battery-powered operation, if the system voltage drops too low, the ventilator is turned off and the remainder of the internal battery power is used for an alarm.

The RAM (U1 used on older through-hole board or U23 on the newer surface-mount board) contains 2 kB of memory. About 800 bytes are used for temporary storage. The remainder is used to store pressure and position data during piston stroke. It is from here that the data are obtained for printout.

EEPROM (U24 used on older through-hole board or U26 on the newer surface-mount board) retains memory without power, so it stores data such as calibration, machine hours, etc. The Time-ofDay Chip (U10 used on older through-hole board or U17 on the newer surface-mount board) uses its own battery to maintain the date/time function while power is off.

Analog to Digital Converter

Analog to Digital ConverterAnalog to Digital Converter

Digital to Analog Converter

Digital to Analog ConverterDigital to Analog Converter

An eight-channel analog-to-digital converter (U19 used on older through-hole board or U15 on the newer surface-mount board) converts the following signals:

• Patient Pressure, for meter display, low and high pressure alarm

sensing and printout

• Amplified Patient Pressure, for patient effort triggering

• Volume Control Setting

• Patient Effort Control Setting

• Internal Battery Voltage

• Internal Battery Current

• External Battery Voltage

• External Battery Current

A D/A converter is required to convert data to an analog format. Components U16 and U17 on older through-hole board, or U16 and U21 on the newer surface-mount board, serve this function. U17 or U21 converts a digital value to make it applicable for motor speed control. U16 supplies the front panel meter. The data from the pressure transducer is converted to a digital value for use by the microprocessor and must be reconverted as an input to the meter.

November 2000

Page 4-11

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System Control

System ControlSystem Control

LP6 Plus, LP10, and LP20 Technical Manual

Chip Identification

Chip IdentificationChip Identification

The following identifies the functions of the logic board chips:

Chip Number

Chip Number Function

Chip NumberChip Number

Older through-

hole board

U12 U9

U13 U10

U15 U11

U3 Reads BPM switch and MODE switch

U4

U5 Eight lines out to parallel printer port

U6

U9 Timer, timed interrupts to Z80

U10 Real time clock

Newer surface-

mount board

Function

FunctionFunction

Reads inspiratory-time switch and push button switches

Reads low limit and high limit pressure switches

Output to remote alarm, internal alarm battery select, battery charge

Reads Hall sensors, mag sensor, printer busy

Output to motor control, backup mode, and printer port

High/Low Pressure Alarms

High/Low Pressure AlarmsHigh/Low Pressure Alarms

U21 U27 I/O read decoder

U22 U29 I/O output decoder

U23 U13 Memory decoder

U27 U30 Microprocessor clock, 4 MHz

High pressure data is obtained from the binary data available from

HIGH PRESSURE

the

HIGH PRESSUREHIGH PRESSURE

information via the A/D converter.

Pressure calibration constants are stored in EEPROM U24 on the older through-hole board, or U26 on the newer surface-mount board. Here the transducer digital code is compared to the constant to arrive at the pressure level. Knowing this, determination of pressure level relative to preset limits occurs. If an alarm condition is appropriate, the program initiates the alarm functions.

The program for the low pressure alarm is similar. Pressure signals are monitored 100 times per second; high and low pressure switch positions are monitored 10 times per second.

switch. The pressure transducer provides pressure

Page 4-12

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November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Alarm Lights; Front Panel Push Buttons

Alarm Lights; Front Panel Push ButtonsAlarm Lights; Front Panel Push Buttons

Alarm light signals are sent from the microprocessor to the LED display board by way of U2 on the older through-hole board, or U19 on the newer surface-mount board. The push button switches also come off of the display board and feed into U4 on the older through-hole board, or U12 on the newer surface-mount board. The microprocessor detects if these switches are pressed individually, simultaneously, or in the case of three times to initiate a graphic printout.

System Control

System ControlSystem Control

ALARM SILENCE

ALARM SILENCEALARM SILENCE

and

BATTERY TEST

BATTERY TESTBATTERY TEST

BATTERY TEST

BATTERY TESTBATTERY TEST

,

Error Detection

Error DetectionError Detection

Power/Motor Board

Power/Motor BoardPower/Motor Board

Normally, the circuit through resistor R12 on the older through-hole board, or R41 on the newer surface-mount board, has a constant high/low excursion. Should this excursion cease for a time period in excess of 1/10th of a second, a microprocessor error has been detected. If this occurs, motor movement will cease, all front-panel LEDs will light, and a continuous tone alarm will sound.

Refer to the Power/Motor Board schematic at the end of this manual. The basic function of the power/motor board is to control the motor speed and position, and to provide power to the rest of the ventilator.

All components outside the dotted line are external to the board. This includes the power sources and associated circuitry, as well as the motor end stroke sensor, exhale solenoid valve, and the fan assembly.

The magnetic sensor senses the position of the piston and compares it to constants stored in the EEPROM on the logic board. This allows the microprocessor to know the location of the crank arm that drives the piston. From there it counts the Hall Codes per revolution.

The circuitry on page 2 of the schematic is motor control circuitry. Power transistors Q8 - Q13 on the older through-hole board, or Q6, Q7, Q8, Q10, Q12, and Q14 on the newer surface-mount board, supply power to the motor. These outputs are controlled by U10 on the older through-hole board, or U4 on the newer surface-mount board. Various address lines control the output, some from Hall sensors and some from the microprocessor.

November 2000

The microprocessor sends three signals:

• Motor on or off

• Motor forward, motor reverse

• Solenoid

Page 4-13

Page 4-13Page 4-13

System Control

System ControlSystem Control

LP6 Plus, LP10, and LP20 Technical Manual

Another important U10/U4 input (A3) originates from the motor control chip, U9 on the older through-hole board, or U12 on the newer surface-mount board. It:

• controls how much power is supplied to the motor. It turns the

motor power on and off at a 16 kHz rate and acts as a speed control. A speed input signal (J4 on the older through-hole board or J2 on the newer surface-mount board, pin 1) comes from the microprocessor, through an analog switch, U6 on the older through-hole board or R13 on the newer surface-mount board, and enters a control input of U9 or U12. The other U9 or U12 control input comes from U7 on the older through-hole board, or U2 on the newer surface-mount board, a tachometer generator. This is a speed feedback signal to U9 or U12.

• Two other inputs to U9 or U12 (pins 15 and 16) provide current

limiting to the motor so that it cannot be driven harder than it is intended, particularly if it is stalled. The U9 or U12, pin 16 circuitry sets the motor drive power to approximately the same level regardless of source (a 12V battery, or from the AC line). This puts about 22V output on the drive circuitry (from AC power); 12V (from DC power sources).

A8 on U10 on the older through-hole board, or U4 on the newer surface-mount board, is the backup line (the line on the logic board that monitors whether the microprocessor is functioning properly). If this line goes high, the three CPU lines, A4, A5, and A6 are ignored by U10 or U4. The exhalation solenoid will be de-energized and all six motor-drive transistors will be off. No air will be delivered.

Three nearly identical power supplies provide: 1) 5V for much of the system circuitry, particularly on the boards; 2) 12V for several IC’s on the logic board, for the solenoid, for the fan, and for the magnetic sensor; 3) 13.8V or 14.4V for charging the battery.

The external power system is also shown on this schematic, with AC power passing through the power switch/circuit breaker, through the transformer and full wave rectifier, and onto the motor board where it is filtered and becomes system power.

The internal and external batteries also connect directly to the motor board through the two parts of CR13 on the older throughhole board, or D32 on the newer surface-mount board, (dual diode) to the system power common. If AC power is connected, its voltage is much higher than that of the batteries and therefore overrides the batteries in supplying power to the system. AC operation is supplying approximately 22V, where the battery is supplying around 12V. Therefore, no current flows from the battery during AC operation.

Page 4-14

Page 4-14Page 4-14

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

System Control

System ControlSystem Control

The charge path for the external battery is through diode CR8 on the older through-hole board, or D37 on the newer surface-mount board, and in the case of the internal battery, through CR7 on the older through-hole board, or D36 on the newer surface-mount board, and the relay contact.

The external battery is always on line. The internal battery is on line for powering the system through a diode, and a relay contact (normally closed). The relay is powered on its positive side by the external battery. If no external battery is connected, and if the charger is not on, this relay cannot operate, so the internal battery will be on line by default. The relay is also controlled on the negative side by the microprocessor.

Because the system cannot differentiate between a fully charged battery (internal and external) and no battery, the battery charge circuitry is interrupted for three seconds every five minutes to allow this check to be completed.

LED Board

U4 on the older through-hole board, or U13 on the newer surfacemount board, detects when system voltage has fallen below approximately 8V. At that point everything is cut off except the alarm. The ventilator will not function with power this low, so the remaining power is used to alert the caregiver of the conditions via the audible and visible alarm system.

The LED Board contains eight LEDs that are digitally powered by the microprocessor. A ninth LED is powered by AC power but is read by the microprocessor to determine the presence of the AC power source. Two push button switches, send inputs to the microprocessor when activated.

ALARM SILENCE/RESET

and

BATTERY TEST

,

November 2000

Page 4-15

Page 4-15Page 4-15

Functional Block Diagram

Functional Block DiagramFunctional Block Diagram

Functional Block Diagram

Functional Block DiagramFunctional Block Diagram

EXTERNAL

BATTERY

CONNECTOR

22

INTERNAL

BATTERY

23

BRIDGE

-

+

-

RECTIFIER

P2 J2

CORD

GND

LINE

CHASSIS

LP6 Plus, LP10, and LP20 Technical Manual

CONNECTOR

A.C.

P1

20

0

SWITCH

MAIN

CIRCUIT

BREAKER

18

FILTER

RFIIN1

RFIIN2

GND

REAR PANEL

17

RFI

RFIOUT 1

RFIOUT 2

T1

21

SELECTOR

VOLTAGE

SECONDARYA

PRIMARYFUSE

SECONDARYB

XFMR

PRIMARY2B

PRIMARY1B

PRIMARY2A

PRIMARY1A

COMMUNICATIONPORT

REMOTE ALARM

INTERFACE

ALARM

AIR

INLET

J16

MECHANICAL

PRESSURE

RELIEF VALVE

0.3 MICRON

AIR INLET FILTER

1

2

P3

RELAY

A/D

A/DSET

-

CTCWR

DASPEED

+

SELECT

ON/OFF 1

ON/OFF 2

COIL DRIVE

CTCRD

DAMETER

RAM

BATTERY

EEPROM

-

+

CHARGE

CIRCUIT

TRANSISTORS

RO

IO

EPROM1

EPROM2

DRIVE

OSC

CLKWR

+

-

J3

MOTOR

8

+5V

P11

J11

MEMORY COMPONENTS

DAMETER

BRUSHLESS

D.C.

BOARD

CALL

ONLY

CRANK

GEARBOX

9

NURSE

LP20

J10

STROKE

SENSOR

7

END OF

EOT

P10

LOGIC BOARD

XTAL

CLKRD

CTCA

R/W

INT.CUR

EXT.CUR

EXT.VOLT

INT.VOLT

POWER DIODES

RTCLK

CLKWR

CLKRD

MOTOR BOARD

J6

P6

J7

P7

J4 P4

CPU

RESET

Z80A

RD

IO

DATABUS

EPROM1

EPROM2

ADDRESS BUS

EEPROM

RAM

-

1

+

ON

AUDIO

ALARM

AUDIO

CIRCUIT

ALARM

LOW POWER

LEVEL

SHUTDOWN

CONTROL OUT

32

INT.OFF

MODE COM.

CHG. OFF

FAN

35

+12V,GND

J8

J5

P5

110

111

112

EOT

BACKUP SIGNAL

+5 VOLT

REG.

+5V

+12 INPUT

+5

CPU OFF

CPU FORW

CIRCUITRY

BACK UP

ON/OFF

SPEED

VOL

+12V

CONTROL

SPEED

ON/OFF

+12 VOLT

REG.

DRIVE CONTROL

CPU SOL

SOL DRIVER

CONTROL

MOTOR

CTCWR

CTCRD

DRIVER

PRINTSTD

PRINTER

SOLENOID

RESET

CIRCUIT

MOTOUT

MOTRD

BITSOUT

+5V

+12V

CLK

SWITCH1

SWITCH2

SWITCH3

A/DREAD

LED

1MV CHECK VALVE

INLET CHECK VALVE

SEAL RING

PISTON

4

5

11

12

OUTLET CHECK VALVE

VENTILATORMANIFOLD

62 MICRON

GROSS PARTICLEFILTER

PUMP

VENT

14

SOLENOID

VALVE

EXHALATION

LP10 & LP20

ONLY

Page 4-16

Page 4-16Page 4-16

MODE CCW

KEEP

ALIVE

INT.OFF CHG. OFF TONE AUDIO ON HOUR METER CPU FORW CPU OFF CPU SOL H0 H1 H2 EOT SENSOR

MOTRD MOTOUT BITSOUT

MOTOR BOARD INTERFACE

LED BOARD

PRESSURE PLATEAUVALVE

VOLTAGE

REF.

DRIVER

REF.

A/DREAD ASSIST

CLKIN

A/DSET

EXT.VOLT

INT.VOLT

EXT.CUR

AMPLIFIED

PRES.

INT.CUR

A/D

PRES.

VOL

DASPEED

PARTICLEFILTER

40 MESH GROSS

13

PRES

FRONT PANEL

XDCR

PATIENTAIR

EXHALATION

51

PRESS/

BATT.

METER

J12

52

FLEXIBLE LINES

PROXIMAL

PRESSURE TUBE

PATIENTMANIFOLD

VALVETUBE

PATIENTCIRCUIT

HOSE

PATIEN T

EXHALATIONVALVE

PATIENTLINE

EXHAUST

SWITCH

INTERFACE

SWITCH3 SWITCH2

ASSIST

SWITCH1

MODE

HIGH PRES.

LOW PRES.

VOL

INSP.TIME

BPM

LED

J9

P9

R

HIGH PRESSURE

LOW POWER

ALARMS

MODE

R

LOW PRESSURE APNEA

A

G

R

SETTING ERROR

BREATHINGEFFORT

INTERNAL BATTERY

POWER SWITCH OVER

EXTERNAL BATTERY

A.C. PWR/BATT.CHARGE

POWER MODES

INFORMATIONAL

November 2000

5 Maintenance

5 Maintenance5 Maintenance

The maintenance section provides the information necessary to maintain the ventilator in optimal operating condition. It outlines those procedures necessary to schedule and perform preventive maintenance including cleaning and sterilization, troubleshooting, and to make minor adjustments or repairs that require no special training or instrumentation.

For repair assistance beyond the scope of this manual, contact a Nellcor Puritan Bennett Customer Service Representative.

Those procedures outlined in this section can be performed

Warning

WarningWarning

Maintenance Schedule

Maintenance Schedule Maintenance Schedule

Those procedures outlined in this section can be performedThose procedures outlined in this section can be performed by the operator without invalidating the warranty. Nellcor

by the operator without invalidating the warranty. Nellcor

by the operator without invalidating the warranty. Nellcorby the operator without invalidating the warranty. Nellcor Puritan Bennett, Inc. assumes no responsibility or liability

Puritan Bennett, Inc. assumes no responsibility or liability

Puritan Bennett, Inc. assumes no responsibility or liabilityPuritan Bennett, Inc. assumes no responsibility or liability for the results of any servicing attempted, beyond that

for the results of any servicing attempted, beyond that

for the results of any servicing attempted, beyond thatfor the results of any servicing attempted, beyond that listed, by personnel not factory-trained by Nellcor Puritan

listed, by personnel not factory-trained by Nellcor Puritan

listed, by personnel not factory-trained by Nellcor Puritanlisted, by personnel not factory-trained by Nellcor Puritan Bennett, Inc.

Bennett, Inc.

Bennett, Inc.Bennett, Inc.

Task Frequency

Visual Check As required

Clean Exterior As required

Replace Inlet Filter Weekly; daily if used in transit or outdoors

Replace Bacteria Filter As required

Clean Patient Circuit Daily; minimum three times a week

Clean Exhalation Manifold Assembly Daily; minimum three times a week

Clean Humidifier Twice weekly

Test External and Internal Batteries Monthly

Clean Printer Module As required

November 2000

Page 5-1

Page 5-1Page 5-1

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

LP6 Plus, LP10, and LP20 Technical Manual

Visual Check

Visual CheckVisual Check

Exterior cleaning

Exterior cleaningExterior cleaning

Frequency

- As required

Procedure (with unit turned off)

PATIENT PRESSURE

Check the

1.

1.1.

division of -10.

Check for cracks on the case or meter face. Check for legible

2.

2.2.

control and indicator identification markings and front panel Alarm Reference Guide instructions (located on control panel door).

Check all connections including power,

3.

3.3.

MUNICATIONS PORT

MUNICATIONS PORTMUNICATIONS PORT

printer module, if used.

Frequency -

PAT I E N T PR E S S U RE

PAT I E N T PR E S S U REPATIENT PRESSURE

Examine the cables and connections on the

.

As required

meter. The needle should be within one

EXTERNAL BATTERY

EXTERNAL BATTERYEXTERNAL BATTERY

and

,

Supplies

❒ liquid detergent

❒ cold disinfectant

❒ cloth

COM-

COM-COM-

Warning

WarningWarning

Page 5-2

Page 5-2Page 5-2

Procedure

Clean the exterior with soap and water or with a bactericidal or

1.

1.1.

germicidal agent.

Clean the display panel with isopropyl alcohol. Do not allow liq-

2.

2.2.

uid cleaning agents to penetrate the inside of the ventilator.

Any liquid leaking into the ventilator or its connections

Any liquid leaking into the ventilator or its connectionsAny liquid leaking into the ventilator or its connections may damage the unit or result in an electrical shock haz-

may damage the unit or result in an electrical shock haz-

may damage the unit or result in an electrical shock haz-may damage the unit or result in an electrical shock hazard.

ard.

ard.ard.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Inlet Filter

Inlet FilterInlet Filter

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Caution

CautionCaution

Standard Inlet Filter

Standard Inlet Filter Frequency

Standard Inlet FilterStandard Inlet Filter

Note:

Failure to change the filter may result in serious damage to the ventilator, and can invalidate the warranty.

Supplies

❒ replacement filter

Procedure

Twist the threaded plastic cap counterclockwise.

1.

1.1.

Remove the screens and the old filter.

2.

2.2.

Wash the screens with soap and water; rinse and dry thoroughly

3.

3.3.

before reinserting.

Check the filter for dust, dirt or discoloration.

4.

4.4.

Filters cannot be cleaned. Replace, if necessary. Any printing on the replacement filter should face towards the front of the ventilator.

Weekly; daily if used in transit or outdoors

November 2000

Reassemble in reverse order and secure the plastic filter cap.

5.

5.5.

Flatpak Inlet Filter

Flatpak Inlet Filter Frequency

Flatpak Inlet FilterFlatpak Inlet Filter

Supplies

❒ replacement Flatpak filter

Procedure

Twist the retainer ring counterclockwise. See figure on the next

1.

1.1.

page.

Remove and inspect the Flatpak filter for dust, dirt, or discolora-

2.

2.2.

tion. Filters cannot be cleaned. Replace, if necessary.

Reassemble in reverse order, making sure that the retainer ring

3.

3.3.

is tight.

Monthly; weekly if used in transit, outdoors, or dusty

conditions

Page 5-3

Page 5-3Page 5-3

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

LP6 Plus, LP10, and LP20 Technical Manual

Bacteria Filter

Bacteria FilterBacteria Filter

Page 5-4

Page 5-4Page 5-4

Flatpak Filter Replacement

Frequency

Supplies

❒ replacement filter

Procedure

Remove the bacteria filter and check for discoloration of the

1.

1.1.

internal filter material.

Replace if needed, or if a new patient is placed on the ventilator,

2.

2.2.

or if four weeks have passed since the last filter change.

As required

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Flextube

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Patient Circuit

Exhalation

Manifold

November 2000

Page 5-5

Page 5-5Page 5-5

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Patient Circuit

Patient CircuitPatient Circuit

Warning

WarningWarning

LP6 Plus, LP10, and LP20 Technical Manual

Patients requiring ventilation assistance are often highly

Patients requiring ventilation assistance are often highlyPatients requiring ventilation assistance are often highly susceptible to respiratory infections. Because of dormant

susceptible to respiratory infections. Because of dormant

susceptible to respiratory infections. Because of dormantsusceptible to respiratory infections. Because of dormant moisture, a patient circuit is an ideal source of infection.

moisture, a patient circuit is an ideal source of infection.

moisture, a patient circuit is an ideal source of infection.moisture, a patient circuit is an ideal source of infection. Failure to properly clean and disinfect patient circuit com-

Failure to properly clean and disinfect patient circuit com-

Failure to properly clean and disinfect patient circuit com-Failure to properly clean and disinfect patient circuit components may result in added pulmonary complications.

ponents may result in added pulmonary complications.

ponents may result in added pulmonary complications.ponents may result in added pulmonary complications.

Frequency

Daily, minimum three times a week

Supplies

❒ manual resuscitator or backup ventilator

❒ liquid detergent

❒ white vinegar or recommended disinfectants

❒ long bristle and bottle brushes

Procedure

Disassemble as shown on the opposite page.

1.

1.1.

Scrub all parts of the patient circuit using brushes and warm

2.

2.2.

soapy water. Make certain the brush enters each convolution to remove medication, secretions or other foreign matter.

Rinse all parts under tap water; make certain all residue is

3.

3.3.

removed.

Disinfect the patient circuit using one of the following methods:

4.

4.4.

Page 5-6

Page 5-6Page 5-6

Soak for 30 minutes in a solution of one part white vinegar to

a.

a.a.

two parts water. Rinse thoroughly.

Soak in an approved chemical disinfectant, following the

b.

b.b.

manufacturer’s instructions.

Shake excess moisture from all parts and place on a clean towel

3.

3.3.

to air dry. Do not wipe or dry with a towel. Do not use a blow dryer. Tubing must be completely dry before reattaching to the ventilator.

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Exhalation Manifold Assembly

Exhalation Manifold AssemblyExhalation Manifold Assembly

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Frequency

Supplies

❒ manual resuscitator or backup ventilator

❒ liquid detergent

❒ white vinegar or recommended disinfectants

❒ long bristle and bottle brushes

Procedure

Unsnap the body and cap.

1.

1.1.

Unscrew the mushroom valve as shown.

2.

2.2.

Clean and disinfect using the procedure given for the patient cir-

3.

3.3.

cuit. Make certain no water or cleaning solution remains in the mushroom or other valve parts.

When completely dry, screw the mushroom securely into the

4.

4.4.

locking nut and snap the body back into the cap.

Daily, minimum three times a week

Humidifier

HumidifierHumidifier

November 2000

Warning

WarningWarning

Ensure proper reassembly of the exhalation manifold. Fail-

Ensure proper reassembly of the exhalation manifold. Fail-Ensure proper reassembly of the exhalation manifold. Failure of the manifold to function as intended could present a

ure of the manifold to function as intended could present a

ure of the manifold to function as intended could present aure of the manifold to function as intended could present a hazard to the patient.

hazard to the patient.

hazard to the patient.hazard to the patient.

Frequency

Supplies

❒ liquid detergent

❒ scouring powder or steel wool (fine)

❒ autoclave, gas or cold sterilization

Procedure

Twice weekly

Refer to the manufacturer’s manual.

Page 5-7

Page 5-7Page 5-7

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

LP6 Plus, LP10, and LP20 Technical Manual

External Battery

External BatteryExternal Battery

Frequency

Supplies

Monthly

❒ External Battery Charger (optional)

Procedure

With the external battery connected and operating the ventilator,

1.

1.1.

BATTERY TEST

press the

BATTERY CONDITION

BATTERY CONDITIONBATTERY CONDITION

the

Check the external battery hookup. Make certain the cable con-

2.

2.2.

BATTERY TEST

BATTERY TESTBATTERY TEST

NORMAL

to

nections are correct and the terminals are not corroded.

The external battery will be charged by the ventilator in any

MODE

position. The ventilator will fully charge a 12 V deep cycle

MODEMODE

battery, in good condition, in approximately three hours of charge time for each hour of use.

For faster charging time, disconnect the battery from the ventilator and attach it to an appropriate external charging device.

button on the front panel and observe the

indicator on the meter. The needle should be in

range.

HIGH

Internal Battery

Internal BatteryInternal Battery

Frequency

Supplies

Monthly

None required

Procedure

With the internal battery operating, disconnect AC power and

1.

1.1.

the external battery from the ventilator.

BATTERY TEST

Press the

2.

2.2.

BATTERY CONDITION

BATTERY CONDITIONBATTERY CONDITION

NORMAL

the

NORMALNORMAL

BATTERY TEST

BATTERY TESTBATTERY TEST

indicator on the meter. The needle should be in

HIGH

to

HIGHHIGH

range.

button on the front panel and observe the

Page 5-8

Page 5-8Page 5-8

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

Printer Module

Printer ModulePrinter Module

Caution

CautionCaution

The following routine procedure is listed here for your convenience. For more detailed instructions, refer to the instructions which accompanied the unit.

Do not operate the Printer Module without paper. This can cause permanent damage to the unit.

Procedure

Disconnect AC power.

1.

1.1.

Clean the Printer Module using a damp sponge and a mild

2.

2.2.

household detergent. Keep liquid from entering the unit.

Check the power and ribbon cables for physical damage.

3.

3.3.

BATTERY

Connect to an operating ventilator. Press the ventilator’s

4.

4.4.

switch three times within two seconds; verify that a printout

TEST

TESTTEST

is produced.

BATTERY

BATTERYBATTERY

November 2000

Page 5-9

Page 5-9Page 5-9

Preventive Maintenance

Preventive MaintenancePreventive Maintenance

LP6 Plus, LP10, and LP20 Technical Manual

Page 5-10

Page 5-10Page 5-10

November 2000

6 Troubleshooting

6 Troubleshooting6 Troubleshooting

This table provides procedures for identifying and correcting operator problems. This list includes only those problems correctable without special equipment. Refer problems beyond the scope of this section to an authorized Nellcor Puritan Bennett Service Representative.

Troubleshooting Chart

Troubleshooting ChartTroubleshooting Chart

Symptom

Symptom Cause

SymptomSymptom

Cause Solution

CauseCause

Solution

SolutionSolution

Green AC power light is out with unit connected to AC power

Power light ON, but ventilator fails to cycle

Alarms activate when unit is turned on

Low Pressure alarm sounds frequently

AC Power Switch Move switch to ON

No AC power at outlet Check for 110 VAC at outlet

Open Circuit Breaker Reset by moving AC switch to ON

Defective cord or connector Check cord and connector for possi-

ble loose connections.

Defective LED Contact Nellcor Puritan Bennett

Mode switch in Standby position

Normal test of audible and visual indicators

Incorrect alarm settings Check alarm control setting

Improper patient connections Check patient connection (trach)

Leaks in components or connections

Water in small tubing Remove water

No patient circuit is connected to unit; no pressure is registered

Pressure Limit control is overtightened (LP10, LP20)

Move MODE switch to an active position

Not applicable; Alarms automatically reset

for a secure, leakproof fit

Check all connections, especially the humidifier and exhalation valve

Connect circuit with test lung to achieve proper pressure according to alarm set point

Do not overtighten the Pressure Limit control

November 2000

Page 6-1

Page 6-1Page 6-1

Troubleshooting Chart

Troubleshooting ChartTroubleshooting Chart

Symptom

Symptom Cause

SymptomSymptom

Cause Solution

CauseCause

LP6 Plus, LP10, and LP20 Technical Manual

Solution

SolutionSolution

Low pressure alarm sounds, is reset, but alarm light remains on and alarm triggers again in approximately one minute

High Pressure alarm sounds frequently

Patient unable to receive assisted breath

Unit cycles continually in 1:1 I/E ratio in Assist/Control mode

Patient seems inadequately ventilated; no alarms sound

The initial cause of the alarm has not been corrected

Incorrect alarm setting Check alarm control setting

Moisture in large tubing Drain tubing

Crimped tubing Make certain tubing is unbent and

Trach or airway restriction Check trach; suction patient

Exhalation Manifold occluded Ensure manifold operates properly

Incorrect Pressure Limit Setting (LP10 and LP20)

BREATHING EFFORT set to negative

Moisture in small tubing Drain tubing

Improper BREATHING EFFORT control setting

Incorrect VOLUME setting Check VOLUME control setting

Low ventilator output Check exhaled volume

Leaks, not sufficient to trip LOW PRESSURE alarm

High Pressure Limit set too low in Pressure Cycle mode

Incorrect Pressure Limit Setting (LP10 and LP20)

Check for leaks

Check for proper control setting

Check Volume setting

Possible change in patient compliance

open

Check Pressure Limit control

Check setting

Check BRATHING EFFORT control setting

Check potential leak locations

Contact health care provider for prescription change

Check Pressure Limit Control

Page 6-2

Page 6-2Page 6-2

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Symptom

Symptom Cause

SymptomSymptom

Cause Solution

CauseCause

Solution

SolutionSolution

Troubleshooting Chart

Troubleshooting ChartTroubleshooting Chart

Ventilator connected to external battery but INTERNAL BATTERY power light flashing

Audible alarm sounds, LOW POWER light illuminates, AC power off

All alarm lights on steady; continuous alarm

Unit not switching to external battery

Low charge on external battery

Loose or broken connections Check all connectors for broken or

Internal battery low Change to adequate external bat-

Unit has detected a microprocessor error

Internal battery depleted Charge Internal battery

Check DC power cord; check for blown fuse in DC power circuit; check DC circuit breaker

Connect to AC power; recharge external battery

missing pins, or loose connections.

tery or to AC power; Recharge internal battery by connecting to AC power

Turn unit OFF; wait 10 seconds, then turn the unit back ON. If the alarm situation still exists, do not use the ventilator. Turn it OFF and contact your Service Representative

November 2000

Page 6-3

Page 6-3Page 6-3

Alarm Condition Chart

Alarm Condition ChartAlarm Condition Chart

Alarm Condition Chart

Alarm Condition ChartAlarm Condition Chart

Audio

Alarm

Alarm LED

AlarmAlarm

LED

LEDLED

Audio Audio Alarm

Alarm

AlarmAlarm

Alarm

Alarm Alarm Silence

Silence

SilenceSilence Reset

Reset/

ResetReset

Switch

SwitchSwitch

/

/ /

LP6 Plus, LP10, and LP20 Technical Manual

Self

Self Self Cancel

Cancel

Cancel Cancel Visual/

Visual/

Visual/ Visual/ Audible

Audible

AudibleAudible

Resulting

Resulting Resulting calibrator

calibrator

calibrator calibrator & printer

& printer

& printer & printer test

test

testtest

Resulting

Resulting Resulting effect on

effect on

effect on effect on machine

machine

machine machine operation

operation

operationoperation

Alarm Test All LEDs Alarm for 1

second

Start-up All LEDs Alarm for 2

seconds

Microprocessor Error

High Pressure High Pressure Pulsing alarm 60 second

Excess Pressure

Low Power L ow Power Puls ing alar m 60 second

Charger Fault

Low Pressure Low Pres-

All LEDs Continuous

alarm

High Pressure Pulsing alarm 60 second

Low Power Pulsing alarm 60 second

Pulsing alarm 60 second

sure/apnea

n/a both none none

n/a both n/a n/a

n/a n/a n/a No

silence

ventilation

audible HIGH PRESS Piston

retracts and mushroom deflates

audible EXCESS

PRESS

none LOW POWER none

none CHARGER

FAU LT

none (audible on LP20)

LOW PRESS none

Piston retracts and mushroom deflates

none

Valley Pressure

Exhale Failure

Page 6-4

Page 6-4Page 6-4

Low Pressure/Apnea

Pulsing alarm 60 second

silence

none (audible on LP20)

VA LL E Y ALARM

EXHALE FAIL No delivery

none

until pressure decreases

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Audio

Alarm

Alarm LED

AlarmAlarm

LED

LEDLED

Audio Audio Alarm

Alarm

AlarmAlarm

Alarm

Alarm Alarm Silence

Silence

SilenceSilence Reset

Reset/

ResetReset

Switch

SwitchSwitch

/

/ /

Self

Self Self Cancel

Cancel

Cancel Cancel Visual/

Visual/

Visual/ Visual/ Audible

Audible

AudibleAudible

Alarm Condition Chart

Alarm Condition ChartAlarm Condition Chart

Resulting

Resulting Resulting calibrator

calibrator

calibrator calibrator & printer

& printer

& printer & printer test

test

testtest

Resulting

Resulting Resulting effect on

effect on

effect on effect on machine

machine

machine machine operation

operation

operationoperation

Stall Low Pres-

sure/Apnea

Apnea Low Pres-

sure/Apnea

Power Switchover

Inverse I/E setting

BPM Error Setting Error Pulsing alarm 60 second

Vo lu m e Error

Inspiratory Effort

Mode Switch Setting Error Pulsing alarm 60 second

Power Switchover

Setting Error Pulsing alarm Test both INVERSE I:E Delivers at

Setting Error Pulsing alarm 60 second

Pulsing alarm 60 second

silence

Pulsing alarm Reset none APNEA Apnea

Pulsing alarm Reset none POWER

silence

none STALL No delivery

mode of ventilation

none

SWITCHOVER

set inspiratory at 1:1 I:E

audible RATE ERROR none

audible VOL ERROR none

audible INS ERROR none,

except to maintain max I:E of 1:1

audible MODE

SWITCH ERROR

may default to ventilating mode

Self test Over Pressure Va l ve Fa il

Selftest Leak Test Fail

November 2000

High Pressure Pulsing alarm 60 second

Low Pressure Pulsing alarm 60 second

silence

both OVP VALVE

FAILU RE

both LEAK TEST

FAILU RE

Perform self test then function as in standby mode

Page 6-5

Page 6-5Page 6-5

Alarm Condition Chart

Alarm Condition ChartAlarm Condition Chart

Alarm

Alarm LED

AlarmAlarm

LED

LEDLED

Audio

Audio Audio Alarm

Alarm

AlarmAlarm

Alarm

Alarm Alarm Silence

Silence

SilenceSilence Reset

Reset/

ResetReset

Switch

SwitchSwitch

/

/ /

LP6 Plus, LP10, and LP20 Technical Manual

Self

Self Self Cancel

Cancel

Cancel Cancel Visual/

Visual/

Visual/ Visual/ Audible

Audible

AudibleAudible

Resulting

Resulting Resulting calibrator

calibrator

calibrator calibrator & printer

& printer

& printer & printer test

test

testtest

Resulting

Resulting Resulting effect on

effect on

effect on effect on machine

machine

machine machine operation

operation

operationoperation

No EOT Sensor

Wrong EOT sensor

Hall Code Error

CTC Error Setting Error Pulsing alarm Reset n/a TIMER ERROR none

EEPROM Error Setting Error Pulsing alarm 60 second

Pressure Setting Error

Dynamic RAM Test Error

Setting Error Pulsing alarm 60 second

silence

Setting error Pulsing alarm 60 second

silence

Setting Error Pulsing alarm 60 second

silence

Setting Error Pulsing alarm Test both PRESURE SET-

All LEDs Continuous

alarm

n/a n/a n/a No ventila-

audible EOT SENSOR

FAILU RE

audible EOT/HALL

ERROR

audible HALL ERROR none

audible EEPROM

WRONG

TINGS

Ve nt i la t or resynchronizes with a seek cycle

Machine runs on calibration constants

System uses and displays set limits

tion

Dynamic ROM Test Error

10 Hz Task Ending

Page 6-6

Page 6-6Page 6-6

All LEDs Continuous

alarm

All LEDs Continuous

alarm

n/a n/a n/a No ventila-

tion

n/a n/a n/a No ventila-

tion.

November 2000

7 Schematics

7 Schematics7 Schematics

This chapter contains the schematics and mechanical drawings for Nellcor Puritan Bennett’s LP6 Plus, LP10, and LP20 Volume Ventilators. This chapter contains proprietary information. It is intended for use only by qualified individuals in the installation and maintenance of the ventilator. Receipt, purchase, or possession of this document in no way confers or transfers any other rights for the use of this information. Disclosure or reproduction of the enclosed, without the written permission of Nellcor Puritan Bennett, Inc., is prohibited.

November 2000

Page 7-1

Page 7-1Page 7-1

Final Assembly

/

Final Assembly

Final AssemblyFinal Assembly

Final Assembly

Final AssemblyFinal Assembly

SIDERAIL

FHCS (2)

10-32 X 3/4

RIGHT COVER

LP6 Plus, LP10, and LP20 Technical Manual

OVERLAY

DOOR

PLUG

METER ADJUSTMENT

FRONT PANEL

ASSY.

RIGHT SOUND FOAM

O-RING

STRIP

MAGNET

SPRING

DOOR

ROD (2)

HANDLE

WASHER (2)

TEFLON

SPRING (2)

CRESCENT

BOTTOM

FEET (4)

PISTON, AND MOTOR/GEARBOX)

RIGHT END ASSY. (MANIFOLD,

BOTTOM

NYLON

CABLE TIE

FHCS (6)

10-32 X 1/2

BACK PANEL ASSY.

TOP COVER

HIGH PRESSURE RELIEF

VALVE COVER

AC POWER

CORD

LEFT END PLATE

10-32 X 1/2

WARNING LABEL

BATTERY

INTERNAL

SOUND FOAM

ALARM

6-32 X 1/4

BHCS (2)

ALARM

BRACKET

NUT

FHCS (6)

ALARM

GASKET

SHCS (4)

6-32 X 3/8

BOTTOM COVER

16

FHCS (2)

6-32 X 5

Page 7-2

Page 7-2Page 7-2

BHCS (2)

6-32 X 1/4

SCREEN (2)

FILTER SUPPORT

O-RING

INTAKE

NAME TAG

FILTER

BHCS (4)

TRANSFO RMER

6-32 X 1/4

FHCS (2)

SIDERAIL

10-32 X 3/4

LEFT SOUND FOAM

LEFT COVER

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Front Panel (LP6 Plus, LP10)

Front Panel (LP6 Plus, LP10)Front Panel (LP6 Plus, LP10)

BOARD

LOGIC

FRONT PANEL

POWER/MOTOR

BOARD

OVERLAY

BOTTOM

GASKET

PAN EL

Front Panel (LP6 Plus, LP10)

Front Panel (LP6 Plus, LP10)Front Panel (LP6 Plus, LP10)

DISPLAY

BOARD

FRONT

STRIP

STRIKER

PLATE

DECORATIVE

BLUE LOCTITE 242 (3)

TOP OVERLAY

4-40 X 3/8 FHMS,

KNOB (5)

FOAM TAPE

PUSHTOTURNKNOB,

O-RING, NYLON WASHER (2)

FRONT PANEL

GASKET

BEZEL

GASKET

METER

November 2000

Page 7-3

Page 7-3Page 7-3

Front Panel (LP6 Plus/LP10)

Front Panel (LP6 Plus/LP10)Front Panel (LP6 Plus/LP10)

Front Panel (LP6 Plus/LP10)

Front Panel (LP6 Plus/LP10)Front Panel (LP6 Plus/LP10)

6-32 X 3/16 SLOTTED FLAT

COUNTERSUNK SCREW (3),

BLUE LOCTITE 242

BHCS

6-32 X 3/16

4-40 X 3/16 BHCS,

4-40 X 11/16 STANDOFF,

4-40 X 1/4 STANDOFF

LP6 Plus, LP10, and LP20 Technical Manual

6-32 X 3/16 BHCS,

6-32 X 11/16 STANDOFF,

6-32 X 1/4 STANDOFF

METER

STANDOFF (3)

6-32 X 1/4

LABEL

SERIAL #

BRACKET

6-32 X 3/16

J1

BLK

TRANSDUCER SLEEVE,

RED

A

METER

BHCS (3)

10-32

KEPS NUT

A

METER WIRING

P2P1

ASSY.

PRISM 410 LOCTITE

6-32 X 3/16 BHCS,

6-32 X 1/4 STANDOFF

VIEW A-A

FOAM TAPE

Page 7-4

Page 7-4Page 7-4

#4 WASHER (8)

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Front Panel (LP20)

Front Panel (LP20)Front Panel (LP20)

BOARD

LOGIC

FRONT PANEL

POWER/MOTOR

BOARD

OVERLAY

BOTTOM

GASKET

PANEL

FRONT

STRIKER

PLATE

STRIP

DECORATIVE

Front Panel (LP20)

Front Panel (LP20)Front Panel (LP20)

HEAT SINK

DISPLAY

BOARD

DAMPENER

BLUE LOCTITE 242 (3)

4-40 X 3/8 FHMS,

6-32 x 3/4

BHCS

TOP OVERLAY

O-RING, NYLON WASHER (2)

KNOB (5)

PUSH TO TURN KNOB,

FRONT PANEL

GASKET

BEZEL

GASKET

FOAM TAPE

METER

November 2000

Page 7-5

Page 7-5Page 7-5

Front Panel (LP20)

Front Panel (LP20)Front Panel (LP20)

Front Panel (LP20)

Front Panel (LP20)Front Panel (LP20)

6-32 X 3/16 SLOTTED FLAT

COUNTERSUNK SCREW (3),

DISPLAY BOARD

BLUE LOCTITE 242

4-40 X 3/16 BHCS,

4-40 X 1/4 STANDOFF

LOGIC BOARD (BELOW)

LP6 Plus, LP10, and LP20 Technical Manual

POWER/MOTOR BOARD (ABOVE)

BHCS

6-32 X 3/16

METER

HEAT SINK

DAMPENER

LABEL

SERIAL #

BRACKET

6-32 X 3/4

BHCS

6-32 X 3/16 BHCS,

6-32 X 11/16 STANDOFF,

6-32 X 1/4 STANDOFF

J1

BLK

TRANSDUCER SLEEVE,

RED

A

P2P1

PRISM 410 LOCTITE

6-32 X 1/4

STANDOFF (3)

Page 7-6

Page 7-6Page 7-6

6-32 X 3/16

METER

BHCS (3)

FOAM TAPE

10-32

KEPS NUT

#4 WASHER (8)

VIEW A-A

ASSY.

METER WIRING

6-32 X 3/16 BHCS,

6-32 X 1/4 STANDOFF

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

+12V

.01

C18

C19

.01

C20

.01

C21

.01

CR5

1N4148

C3

.1

1M

R7

9

1/4 W,5%

U8D

4050

10

4 MHz

U27

1

7

0

14

8

10

1

2

9

3

11

12

74LS293

13

U11

4

D0

CLKRD

4

1

3

2

TP1

4M, 1MOL

TOD

CALIBRATE

CLOCK

3-32

C1

pf

R36

1K

1%

1/2 W

500 KHz

SH

S

3

+5V

D5

D3

D1

D4

D2

D6

D7

+5V

NC

23

CLK<

6

15

MHz

CLK

4

RDY

XTAL 1

ALL DIODES

ARE

1N4148.

25

17

RES

26

17

RES

X2

11

C2, 22

pf

R35

1K

4.75K

VALUES

CAPACITOR

ARE

IN

V

OHMS, 1/8W

ALUES

ARE IN

, 1%; ALL

MICROF

ARADS;

M1

27

14

M1

12

GND

R34

1. UNLESS OTHERW

ISE SPECIFIED, ALL RESIST

OR

INT

A1

CE

A4

13

16

12

19

A1

1

9

10

10K

74LSO8

5

CTCRD

D7

4

TR3

A0

18

A0

D7

22

56187

8

A3

SH

R

2

3

4

U7B

D6

3

20

D6

21

7

A2

28

18

W T

24

R6, 10M

+5V

X1

10

32 KHz

+5V

9

7

R1

R5

4

6

D5

2

Z02

9

D5

20

U10

6

A1

+5V

2N2907

Q6

2N2907

DISABLE

CLOCK

2

D4

I0

D4

1

W RITE

7

CLKW

R

1

10

IO*

19

5

A0

Q5

12

8

+5V

6

EN

74LS138

6 9

7

ADSEL

L

SH

3

D3

28

RD

6

RD*

D3

18

STBY

INT OUT

INT

14

N.C.

+5V

POSITION

3 COM

4

2

1 COM

14

15

W R

22

W R*

5

EN

U22

5

4

10

11

MOTOUT

PRINTSTB

K

J

SH

2

D1

D2

27

26

Z80 CTC

IEI

13

+5V

D1

D2

16

17

PWDN

13

23

N.C.

100K

R33

2. MODE SW

ITCH

TRUTH

SECTION

T ABLE (REF)

1

SECTION

3

D0

A15

5

IO*

3

4

C

EN

3

12

BITSOUT

I

H

SH

2

D0

25

U9

CE

16

D0

15

RD

W R

+

24

Q

SH

2

3. TWO

TO

CHASSIS

P ADS

FOR

GND

ST

(REF) PLUS EXTRA

ANDOFF BOTH

SIDES W IRE P

OF J10 AD.

A13

A14

4

3

(SOCKET)

A7

A6

2 B

2

1

13

14

DAMETER

DASPEED

G

SH

3

SH

3

CLKRD

2

3

AX

5. FORM

SHOWN

LEADS

.

ON

SW1, SW2, SW3 AND

SW4 AS

A12

2

A5

1

A

0

15

CTCWR

28 PIN

P ATTERN

AND

INST

ALL JP1 AS SHOWN.

Z80A

A10

A11

40

1

U28

CLKWR

6. INSTALL U1 PIN OF A COMPONENT.

1IN

3 LOCA

TION

OF

A8

A7

A9

39

38

37

6

EN

READ

7

SWRD3

F

SH

3

7. SQUARE

CATES PIN

FASTENING.

P ADS ON

1, (+) POLARITY

PC

BOARD, ITEM

,OR

CA THODE

1, INDI-

A5

A6

35

36

RD

21

RD*

+5V

5

EN

74LS138

U21

6

5

9

10

ADREAD

SWRD2

E

SH

2

SWRD2

1

19

8. ENSURE INSULATOR

SWITCH

SHOULDER

AND

IS NOT PINCHED

P .C.B. BEFORE

BETWEEN

A4

34

IO

20

IO*

A7

IO*

3

4

C

4

3

12

11

DISSTB

SW

RD1

D

SH

2

D7

17

OE

18

8

SWRD3

19

HIGH

PRESS

33

C

SH

2

D6

15

16

4

1

A2

A3

32

A6

1

2

A

B

2

1

13

14

CLKRD

MOTRD

D5

13

14

2

C

D7

17

OE

18

8

A5

12

1

A1

31

MEM

19

MEM*

0

15

CTCRD

D4

11

5

4

2

3

SW

3

4

A6

D6

18

D6

4

A6

D6

18

D6

4

A6

D6

18

D6

2

A6

D6

16

D6

A6

J1 THRU

J8

A5

D5

A5

D5

A5

D5

A5

D5

A5

5

17

D5

A5

5

17

D5

A5

5

17

D5

A5

3

15

D5

P1 THRU

P3

A4

6

A4

D4

16

D4

A4

6

A4

D4

16

D4

A4

6

A4

D4

16

D4

A4

4

A4

D4

14

D4

REF DESIGNATION

NOT USED

A3

7

A3

D3

15

D3

A3

7

A3

D3

15

D3

A3

7

A3

D3

15

D3

A3

5

A3

2816

D3

13

D3

R36

C74

Q6

CR8

JP1

P5

TP2

RP7

U28

SW5 XDCR1

J12

XT AL1

A1

A2

A0

10

9

8

A1

A2

A0

1

+5V

26

27

CE

20

D1

D2

D0

ROM0

11

12

13

/

D1

D2

D0

A1

A2

A0

ROM2

10

9

8

A1

A0

A2

CE

20

11

+5V

26

D2

D1

D0

27

11

12

13

D1

D2

D0

A1

A2

A0

10

9

8

RAM

A1

A2

A0

CE

20

D1

D2

D0

11

12

13

D1

D2

D0

A1

A2

A0

8

7

6

EEPROM

A1

A2

A0

U24

CE

18

D1

D2

D0

11

10

9

D1

D2

D0

HIGHEST REF DESIGNATION

USED

A12

A11

A10

A8

A7

A9

A0

30

RD*

2

1

74LS08

U7A

3

MEM*

A15

A13

A14

3

4

5

EN

74LS138

U23

6

5

9

10

LEDOUT

A

SH

2

D2

D3

3

5

2

4

O

SH2

D4

11

12

1

SW1

EN

4

11

EEPROM

D1

7

74LS795

6

N

M

SH2

C

3

12

RAM

D0

9

U4

8

2

3

D3

3

2

8

2 B

2 13

NC

10K

74LS795

U6

1

A

0

1

15

14

1

+5V

RP6

1

RP6

D2

5

4

C

6

EN

MEM

7

NC

PRINTOUT

B

SH

2

1

+5V

10K

RP2

P

INS TIME

SH2

D6

D5

15

13

16

14

2

4

C

22

WR*

RD*

ROM0

ROM2

22

WR*

22

2

+5V

RD*

20

W R*

D1

D0

9

7

6

8

5

6

10

3

8

7

4

9

2

NC

2

1

SPARE

LOW

SW2

PRESS

25

21

23

24

3

2

A12

A11

A7

A10

A8

A9

(SOCKET)

2764-0

U25

OE

CE

OE

D7

19

D7

A12

A11

A10

A8

A7

A9

25

21

23

24

3

2

A12

A7

A10

A11

A8

A9

(SOCKET)

2764-2

U26

D7

19

D7

A8

A10

A7

A9

27

25

21

24

3

2

WR

A7

A10

A8

A9

6264

U1

D7

26

1

23

19

NC

D7

+5V

1 JP1

3

A8

A7

A10

A9

23

22

19

1

A7

A10

A8

A9

(SOCKET)

WR

D7

17

21

D7

DX

Reference only

Reference onlyReference only

+5V

1

RP1

10K

1

+5V

13

12

11

U7D

74LS08

November 2000

Page 7-7

Page 7-7Page 7-7

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

LP6 Plus, LP10, and LP20 Technical Manual

Reference only

Reference onlyReference only

REMOTE

ALARM

TO

3

1

M

SH 1

RES

LD

2

ONE

CONT

2-T

REM

1K

R9

1K

+5V

NC P

O

N

9

6

16

15

12

U2

74LS273

14

7

13

8

17

D4

D3

D2

D1

D0

J11

Y BOARD

J9

DISPLA

TO

BACKUP*

LEDOUT

A

4

R8

+5V

6

8

20

19

18

17

7

9

5

10

11

12

13

14

1

2

3

4

16

15

1

11

SH 1

4050

U8F

SH 1

.1

RP2

14

22V BUS

CLOCK DISABLE

R

10K

RP7

4050

U8A

1

10K

1

8

9

D0

2

1

3

2

BUS

ALARM

Q3

R10

C4

.01

R12

5

BPM

6

7

D1

13

15

MODE

POWER

ALARM

RUNNING

R31

47.5K

2N2907

100K

1K

RP7

10K

RP7

4050

U8B

C

SW4

10

6

9

7

8

4

5

D2

17

6

4

3

5

4

1

2

U3

3

D3

RP7

9

4050

2

12

74LS795

11

D4

U8C

4

10K

10

RP7

10K

7

8

7

6

8

16

18

14

13

15

17

D5

D6

D7

4

16

U13

15

D4

GND)

NOT USED

(ANALOG

4

18

74LS795

5

17

D6

D5

30

33

Q2

+12V

1

NC

2

3

D7

34

3

OUT

78L05

IN

18

NC

C58

C57

680

C56

C55

BUSY

SPARE

21

C61

680

C60

680

C59

.1

C49

GND

C48

47

+

R2

100K

DX

10

5

1312

P5

ON

ONE

OFF*

T

SENSE

AUDIO

INT BATT OFF*

CHARGE

AC POWER

7406

9

15

8

14

D2

D1

32

1

DISSTB

PRINTSTB

pf

680

C64

pf

680

C70

pf

680

C66

+5V

PRINTOUT

7

D3

C71

C67

B

1N4002

CR1

6

5

U14C 7406

6

17

D4

3

1

11

U14A

2

7406

1

U14B

4

3

5

2

16

19

U12

74LS273

4

3

18

D6

D5

D7

9

7

5

pf

680

C72

pf

680

C68

6

9

RES

LD

7

8

4

D2

D1

D0

1

SH

5

.1

+8 REG

C74

3

OUT

78L08

2

GND

IN

Q1

1

+

47

C73

63V

+12V

12

1

RES

11

LD

BACKUP*

13

BITSOUT

SH 1

5

19

4

18

D6

D5

D0

I

SH 1

J10

pf

680

C63

pf

680

C69

pf

680

C65

2

3

D7

E

K

SH 1

11

5

U5

MOTRD

13

2

12

74LS273

3

13

D3

D4

RP6

10K

4

1

+5V

RP6

10K

6

RP6

10K

5

8

6

12

14

19

OE

1

OE

7

9

11

13

C

D3

D0

D2

D1

SH 1

6

4

15

17

2

TP2

pf

C62

680

16

15

19

18

17

14

D7

D6

D5

21

20

23

19

24

22

HALL 2

HALL 1

HALL 0

+5V

J

SH1

pf

680

pf

680

pf

680

SER OUT

CAL ERROR LED

27

26

23

pf

9

+5V

2

+12V

63V

CR3

CR2

Q

SH 1

SPARE (INPUT)

1

11

MOTOUT

D0

29

8

10

R3

CRANK SENSOR*

9

12

RES

LD

13

8

D1

19

25

pf

680

C51 680

C52

U7C

1K

R4

(HOUR METER) NOT USED

6

15

14

D3

D2

28

pf

680

C53

C50

680

74LS08

C24

BAT1

+

CPU FWD

WATCHDOG

16

U15

74LS273

7

17

D4

2

(MODE SW)

SW5

31

8

pf

680

C54

pf

.01

CR4

BH1

3V

CPU OFF*

5

4

D5

BAT HLD

8

6

BACKUP

CPU SOL*

8

SOLENOID #2

2

19

18

3

D6

D7

+

1

SECTION 3

COM

12

14

10

+5V

AO

SH 1

4050

U8E

C23

AX

47

16

9

12

11

63V

3

SECTION 1

18

20

19

1

SWRD1

D

U14D

15

14

1M

R11

C5

WATCHDOG

2

4

COM

22

OE

1

SH

7406

.1

+5V

C22

24

+5V

7

11

9

Page 7-8

Page 7-8Page 7-8

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

332K

SH

S

1

500 KHz

13

10

GND

CLK

IN1

IN0

26

C12

.1

C11

.1

7

100K

RP4

8

100K

26.7K R25

U18A

LM324

1

11

+12V

4

-

+

OUT

3

2

R26

100K

R27

-

2

CR6

CR7

+5V

.01

C46

C26

.01

C27

.01

C28

10K

R32

D7

D6

D5

D4

D3

D2

D1

D0

N.C.

25

16

REF-

27

5

RP4

6

100K

3

+

1

120 cm

XDCR1

.01

C47

.01

C36

.01

C37

C38

.01

18

19

21

20

IN4

2

.1

C13

7

100K

RP3

8

U20D

LM324

14

7

RP5

-

+

8

13

12

R24

10K

.1

C10

2.21K

EXTERNAL CURRENT

CURRENT GND

10

11

23

14

24

17

15

8

SEL C

IN5

3

C14

.1

5

100K

RP3

6

U20C

LM324

8

+

9

10

R21

10K

R23

100K

R22

INTERNAL CURRENT

12

EOC

SEL A

SEL B

.1

1N4148

CR8

RP5

5

R20

150K

100K

6

100K

NC

4313

9

SH

L

1

ADSEL

13

U14F

7406

12

1K

6

22

7

ST

ALE

ADC0809

IN6

4

C15

3

.1

C9

100K

RP3

4

26.7K R30

U20B

R17

150K

LM324

7

11

-

+

5

6

3

100K

RP5

4

R19

100K

EXTERNAL VOLTS

SH

DX

F

1

ADREAD

11

7406

U14E

10

+5V

R15

1K

+5V

R16

C25

.01

9

OE

U19

IN2

IN7

5

.1

C8

1

RP3

100K

2

U20A

LM324

1

+12V

4

-

+

2

3

1

RP5

LN1

LK NUT

2

R18

INTERNAL VOLTS

6145

+

+REF

IN3

28

1

C7

.1

1

3

100K

RP4

100K

RP4

2

4

CW

2

1

3

R29

10K

LN2

LK NUT

CW

2

3

(EFFORT)

10K

R28

100K

C6

.1

5

6

-

+

LM324

7

+5V

+12V

+5V

7

8

11

12

(VOLUME)

+5V

R14

U18B

+12V

2

-

10

-

10

VOLUME

WR2

D7

D6

D5

D4

D3

D2

D1

13

14

15

16

5

4

6

AGND

XFER

ILE

I01

I02

VR

18

D7

13

XFER

18

19

17

12

11

3

8

D3

D5

D2

D4

D1

D6

15

16

14

4

5

6

AGND

ILE

I02

I01

VR

8

12

17

11

3

19

10

9

+

U18C

LM324

8

SPEED

P4

1

SH

H

1

DAMETER

D0

7

CS

WR1

+

20

+5V

D0

7

CS

WR1

+

20

+5V

4.75K

R13

1

2

+12V

1

2

+12V

J12-2

DAC0832

SH

1

G

DASPEED

DAC0832

U16

U17

-

TO

METER

13

J12-1

LP20

LP6+/10

MODEL

12

+

U18D

LM324

14

.01

C39

C29

.01

C40

C30

.01

C31

.01

C32

.01

C33

.01

C34

.01

C35

63V

.01

C41

63V

.01

C42

.01

C43

.01

C44

.01

C45

+5V

November 2000

Reference only

Reference onlyReference only

Reference only

Reference onlyReference only

+

47

C17

+5V

+

47

C16

U14

7406

14

7

U8

4050

1

8

U19

0809

SEE

DWG

U20

LM324

SEE DW

G

U5

LS273

20

10

U3

LS795

20

10

U4

LS795

20

10

U6

LS795

20

10

U16

0832

SEE

DW

G

U17

0832

SEE

DWG

U18

LM324

SEE DW

G

U15

LS273

20

10

U12

LS273

20

10

U22

U13

LS138

LS795

16

20

10

8

U21

LS138

16

8

U2

LS273

20

10

U10

58167

SEE DW

G

U9

CTC

24

5

U24

2816

24

12

U1

6164

28

14

U26

2764

28

14

U25

2764

28

14

U28

Z80A

11

29

U23

LS138

16

8

U7

LSO8

14

7

U27

OSC

14

7

U11

IC

LS293

TYPE

PWR/GND

BUS

+5V

14

GND

7

Page 7-9

Page 7-9Page 7-9

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

Through-Hole Logic Board

Through-Hole Logic BoardThrough-Hole Logic Board

Reference only

Reference onlyReference only

LP6 Plus, LP10, and LP20 Technical Manual

Page 7-10

Page 7-10Page 7-10

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

Reference only

Reference onlyReference only

November 2000

Page 7-11

Page 7-11Page 7-11

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

LP6 Plus, LP10, and LP20 Technical Manual

Reference only

Reference onlyReference only

Page 7-12

Page 7-12Page 7-12

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

Reference only

Reference onlyReference only

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

November 2000

Page 7-13

Page 7-13Page 7-13

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

Surface-Mount Logic Board

Surface-Mount Logic BoardSurface-Mount Logic Board

LP6 Plus, LP10, and LP20 Technical Manual

Reference only

Reference onlyReference only

Page 7-14

Page 7-14Page 7-14

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Through-Hole Power-Motor Board

Through-Hole Power-Motor BoardThrough-Hole Power-Motor Board

20

19

GND

(ANALOG)

63V

+

4

GND

(HOUR

(ANALOG)

METER)

C27

47

C40

.01

J1

NOT USED

4.75K

17

10

5

NOT USED

CHARGER

ALARM

POW

OFF

(AUDIO

ER

*

T

R47

ONE)

+5V

NC

+

18

16

14

15

13

3

2

1

22V

CLOCK DISABLE

INT BAT

AC

POWER

BUS

OFF

SENSE

*

RUNNING

MODE

NC

ALARM

BUS

221K

J5

1N4148

9

NC

R71

Reference only

Reference onlyReference only

10K

1N4148

CR15

100K

.01

R64

LM393

12

AUDIO

+5V

ON

10K

R66

.1

C34

1N4148

CR14

R63

C33

82.5K

6

-

LM393

2

-

+

4

U11

1

PN2222

R62

5

+

U11

100K

R65

7

22.1K

R69

3

8

.01

C39

10K

R5

1N4002

Q23

CR10

J2

-

Through-Hole Power-Motor Board

Through-Hole Power-Motor BoardThrough-Hole Power-Motor Board

14

13

12

10

+12V

2N2907

1.0A

+12V

Q22

+12V

F2

274K

NC

+5V

26.7K

.1

11

EXTERNAL VOLTS

CURRENT GND

INTERNAL VOLTS

+5V

R74

R4

332K

R3

C1

3

TH

8212

6

U4

G

5

O

7

4

+5V

R1

10K

C26

1

50V

J4

INTERNAL CURRENT

EXTERNAL CURRENT

221K

R2

2

HY

+

8

C41

.01

10K

2N2907

2

5

3

487

6

1

REM

CHASSIS GND

GND

16 VAC

60 Hz

OVED

-FW

RECT

NC

2

+

12000

C2

1N4002

2

+

47

C25

63V

1N4002

CR5

R11

1.5K

R70

Q3

EXTERNAL BAT-

162K

MR751

CR6

.05, 3W

R55

R10

CR9

1N4002

1N5401

CR4

CR8

FUSED

INTERNAL BAT

EXTERNAL BA

-

T+

R56,

.05, 3W

221K

9

R9

RLY 1

1

SPEED

CR20

1N4148

2

.47

100K

NC

CR21

4

GND

1N4002

C46

R73

GND

(DIGIT

AL)

38765

GND

(DIGIT

AL)

TP1

CR19

10

J3

INTERNAL BAT+

NC

F1

6.3A

1N4002

CR17

1N4002

CR18

+12V

CR1

1N5401

COM

1N5401

CR2

1N5401

CR3

2

CR13

1605CT

1N5401

HS2

CR7

S. LIGHT4G. MERTZ

C

SPEED

D. REBISKIE

.01

C38

12

5

C32

.01

VCC

CT

C1

8

C2

11

E1

9

E2

10

2+

OC

1%; ALL CAPACITOR

MICROFARADS

V ALUES

ARE

IN

TL494

13

U3

GND

DT

7

2.21K

1. UNLESS

RESISTOR

OTHER

V ALUES

W ISE

ARE IN

SPECIFIED, ALL

OHMS, 1/8W

,

2-

COMP

1-

RT

REF

1+

R16

16

15

3

2

6

14

1

22V

+ REG

BUSS

A

B

L. LANGE

2

``HSI'' HEATSINK FOR

9PIC

'S.

R15,

1M

2W

2

4.7K

2

C5,

.1

C6

.1

47.5K R14

9

RP2

4.7K

10

(MUST ACCEPT #6 SCREW

S-REF).

R12

330

RP2

1

2N2907

6

4.7K

RP2

7

4.7K

4. HOLES

(3) NOT T

O FILL W

ITH

SOLDER

Q4

5

RP2

CATHODE OF A COMPONENT.

3

2

+

1400

C9

4.75K R18

4

4.7K

RP2

8

.01

C8

10

C7

5. SQUARE

INDICATES PIN

P ADS ON

1, (+) POLARITY

PC

BOARD, ITEM

,OR

1

4

Q2

PIC625

2

6

1

100UH

.5, 3W

3

+

6 INST

AROUND

& FIT IN

ALL FERRITE BEADS, ITEM

CLEARANCE

PINS2&4OFQ1,Q2,&Q6,

BORES OF HS1,ITEM

15 REF

,

6.

R17

+5V

12

.01

VCC

U1

DT

7

2.21K

C1

C2

E1

E2

2+

2-

COMP

1-

RT

REF

1+

4

R67

C36

8

11

9

10

16

15

3

R19,

1M

2

6

14

1

RLY1.

7

8

9. FORM

LEADS OF

CR6 T

O CLEAR

CR4 AND

.1

47.5K

4.7K

R24

330

2W

2

4.7K 1

RP3

2

2N2907

C11,

.1

C10

6

R20

RP3

4.7K

RP3

4.75K

R59

5

.01

C30

CT

L3

TL494

GND

OC

13

5

Q5

C45,

Q21

C3

C4

U5

CR16

U8

U6

CR12

Q6

.01

4

PIC625

3

2

6

2

1

100UH

L2

+

C12

1400

.01

C31

.5, 3W

4.75K

R22

R23

4

3

RP3

4.7K

+12V

6.81K

R21

C29,

C42

RLY1

R74

R6

RP8

R7

F2

REF DESIGNATION

C46

TP1

R61

CR21

Q23

R8

J8

L3

NOT

R13

U1

USED

1

R39

R44

R46

C35

5

VCC

CT

TL494

U2

GND

OC

DT

13

7

2.21K

HIGHEST REF

DESIGNA

TION

USED

12

C1

C2

E1

E2

2+

2-

COM

P

1-

RT

REF

1+

R68

+REG

Q1

4

PIC625

3

8

11

9

10

16

15

3

1M

2

6

14

1

4

330

2W

R37

2

1400

4.75K R36

2N2907

C14,

+

R27

1M

1.0

.1

C13

47.5K

R28

R26

1K

R32

4.75K R25

18.2K R30

2

6

2

1

100UH

L1

+

C15

22.1K

R35

Q7

.5, 3W

4.75K R34

R33

10K

R60

R31

1K

3

CW

2

1

26.7K

R29

November 2000

Page 7-15

Page 7-15Page 7-15

Through-Hole Power/Motor Board

Through-Hole Power/Motor BoardThrough-Hole Power/Motor Board

Through-Hole Power/Motor Board

Through-Hole Power/Motor BoardThrough-Hole Power/Motor Board

6

11

8

7

PIC 635

9

5

1

*

INDEX

NC

HALL SENSOR +5V

HALL SENSOR GND

+5V

R41

+5V

RP4

1

+5V

RP4

1

+5V

RP4

1

+5V

4

HALL 2

HALL 1

HALL 0

10K

1.5K 4

1.5K

1.5K 23

PIC 625

Q10

4

1

CRANK SENSOR

C21

.1

C17

.01

C16

.01

C20

.01

PIC 635

Q11

1

4

3

4

2

J6

MOTOR WHITE

MOTOR PURPLE

MOTOR ORANGE

C28

1200

+

2

PIC 625

Q8

4

Q9

1

10

12

CRANK SENSOR GND

CRANK SENSOR +12V

10

R42

+12V

R38

.05

3W

+12V

2

PIC 625

Q12

4

1

2

1

J8

FAN GND

FAN +12V

+12V

RP1

10K

2

1

+5V

11

7

TH

NC

6

NC

9

+

+12V

8

+

+12V

IN

1

C44

.01

PIC 635

Q13

1

4

LP6 Plus, LP10, and LP20 Technical Manual

3

J7

SOLENOID 1

CR11

C

Q20

1N4002

R45

4.75K B

R43

10K4RP1

3

43

R1

+

C2

U7

12

2907N

GND

C18

2

C1

OUT

5

10

R40

4.75K

RP1

10K

6

5

1

SOLENOID +12V

+12V

E

TIP, NPN

47.5K (4500RPM)

C19

1.0

.01

C43

+5V

Reference only

Reference onlyReference only

13

10

4

7

E2

DT

GND

CTRT

11

NC

1

+1 C2

TL494

U9

CM 2 REF +2

1

CC

V

C1

E1

12

8

9

.01

10K

R48

(16 KHz)

C24

R54

150

5

6

14 16

R51

15

3

R50

2

.001

R53

75K

R58

R52

4.75K

681K

C23

.1

75K

R57

3.92K

C22

.01

1M

R49

39.2K

C37

.01

2

3

2

+5V

5

220

RP6

6

Q14

MPS6717

11

D2

22V BUS

B

Page 7-16

Page 7-16Page 7-16

2

3

RP8

1

RP7

6

Q15

100

2

100

1K

RP5

1 2

15

D5

2

3

RP8

MPS6717

RP6

4

+5V

1

220

RP7

100

1

2

Q16

MPS6717

9

D0

U10

2732

(SOCKET)

2

3

100

3

2

1K

RP5

3

14 4

D4

+5V

3

Q18

MPS6717

3

220

RP6

4

Q17

+

A7

1

24

2

3

100

RP8

6

+5V

RP7

3

MPS6717

10

D1

22

Q19

MPS6717

5

100

4

6

RP1

1K

RP5

5

13

D3

A11CEOE

A10

A9

18

21

19

867

17

16

A0

A2

A1

D6

D7

GND

12

20

10K

8

7

345

+5V

2

23

*

BACKUP A8

CPU FORW A5

CPU OFFCPU A4

CPU SOLCPU A6

PWM OFFPW M A3

+ REG

A

*

CPU OFF

BACKUP

HALL 2

CPU SOL

CPU FWD

J5

9

8227

11

SPEED

C

NC

HALL 023CRANK SENSOR

HALL 1

6

21

24

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Through-Hole Power/Motor Board

Through-Hole Power/Motor BoardThrough-Hole Power/Motor Board

Reference only

Reference onlyReference only

Through-Hole Power/Motor Board

Through-Hole Power/Motor BoardThrough-Hole Power/Motor Board

November 2000

Page 7-17

Page 7-17Page 7-17

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

LP6 Plus, LP10, and LP20 Technical Manual

Reference only

Reference onlyReference only

Page 7-18

Page 7-18Page 7-18

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

Reference only

Reference onlyReference only

November 2000

Page 7-19

Page 7-19Page 7-19

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

Surface-Mount Power/Motor Board

Surface-Mount Power/Motor BoardSurface-Mount Power/Motor Board

Reference only

Reference onlyReference only

LP6 Plus, LP10, and LP20 Technical Manual

Page 7-20

Page 7-20Page 7-20

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Pressure Limit Assembly (LP10, LP20)

Pressure Limit Assembly (LP10, LP20)Pressure Limit Assembly (LP10, LP20)

Pressure Limit Assembly (LP10, LP20)

Pressure Limit Assembly (LP10, LP20)Pressure Limit Assembly (LP10, LP20)

DETAIL C-C

SECTION A-A

B

A

C

A

B

C

Reference only

Reference onlyReference only

November 2000

Page 7-21

Page 7-21Page 7-21

Front Bezel (LP6 Plus only)

Front Bezel (LP6 Plus only)Front Bezel (LP6 Plus only)

Front Bezel (LP6 Plus only)

Front Bezel (LP6 Plus only)Front Bezel (LP6 Plus only)

LP6 Plus, LP10, and LP20 Technical Manual

Page 7-22

Page 7-22Page 7-22

Reference only

Reference onlyReference only

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

)

6

Right End Assembly

Right End AssemblyRight End Assembly

Right End Assembly

Right End AssemblyRight End Assembly

6-32 X 1/2 SHCS (4

MOTOR/GEARBOX ASSY.

CYLINDER

SERIAL # LABEL

PISTON ASSY.

MANIFOLD ASSY.

RIGHT END PLATE

CYLINDER GASKET

MANIFOLD GASKET

6-32 X 1.25 SHCS (6)

-32 X 3/8 SHCS (10)

November 2000

Page 7-23

Page 7-23Page 7-23

Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10)Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10)Back Panel (LP6 Plus, LP10)

8

BLUE

(TBI)

BLK 1

7 BLUE

7

FUSED EXT BATT (+)

6A

EXT BATT (+) UNFUSED

1

10

N.U.

EXT BATT (-)

3

O2

G

INTERNAL BATT

P3

ASSY.

TRANSFORMER

CHASSIS GND

4

3

2

1

KEY

GND

60 MZ

BLUE

YEL 5

(SPLICE)

GRN/YEL

6

4

ORG

5

FW RECT

16 VAC

+

-

2

3

BRN

RED

2

3

SW

SEL.

VOLT

4

1

BRN

BLUE

LOAD

LINE

FILTER

LINE

V

BRN

1A

BRN

BLUE

1

2

3

INTERNAL BATT (+)

P2-1

RED

LP6 Plus, LP10, and LP20 Technical Manual

6

9

INTERNAL BATT (-)

Reference only

Reference onlyReference only

CABLE

PRINTER

P2-2

BLK

-

+

PORT

COMM.

REMOTE

6-32 X 3/8

SHCS (4)

8-32 X 3/4

ALARM

CONNECTOR

GROUND

SHCS (2)

12V

CIRCUIT

BREAKER

BATTERY

EXTERNAL

CONNECTOR

STUD

CORD

RETAINER

SCREEN

BLK

PLUG

(P1)

WHT

(REF)

BATT

EXT.

BAIL

LOCK

BLUE LOCTITE 425

8-32 X 3.5 FHCS (4),

TRANSFORMER SCREWS

ON/OFF

SWITCH

4-40 X 3/16 SHCS

110/220V SWITCH,

(2), BLUE LOCTITE 242

RELIEF

STRAIN

CORD

POWER

CORD

WRAP

FEET (4)

Page 7-24

Page 7-24Page 7-24

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10)Back Panel (LP6 Plus, LP10)

Reference only

Reference onlyReference only

Back Panel (LP6 Plus, LP10)

Back Panel (LP6 Plus, LP10)Back Panel (LP6 Plus, LP10)

November 2000

Page 7-25

Page 7-25Page 7-25

Back Panel (LP20)

Back Panel (LP20)Back Panel (LP20)

Back Panel (LP20)

Back Panel (LP20)Back Panel (LP20)

6

4

ORG

VOLT

BRN

1A

GRN/YEL

3

BLK

GRN

5

FW RECT

16 VAC

+

7 BLUE

2

3

BLK 1

BRN

RED

SEL.

4

1

BLUE

LOAD

LINE

FILTER

LINE

V

BLUE

1A

BRN

BLUE

1

2

(TBI)

WHT

(P1)

P3

CHASSIS GND

ASSY.

TRANSFORMER

4

3

2

1

KEY

GND

60 MZ

BLUE

YEL 5

(SPLICE)

FUSED EXT BATT (+)

6A

EXT BATT (+) UNFUSED

1

LP6 Plus, LP10, and LP20 Technical Manual

9

8

7

10

N.U.

EXT BATT (-)

3

O2

G

(REF)

BATT

EXT.

6

Reference only

Reference onlyReference only

INTERNAL BATT (+)

INTERNAL BATT (-)

CABLE

PRINTER

P2-1

BLK P2-2

RED

-

+

INTERNAL BATT

COMM.

PORT

NURSE CALL

ALARM

REMOTE

CABLE

CONNECTOR

SHCS (2)

6-32 X 3/8

SHCS (4)

8-32 X 3/4

12V

CONNECTOR

EXTERNAL

STUD

GROUND

CORD

RETAINER

CORD

WRAP

FEET (4)

CIRCUIT

BREAKER

BATTERY

CONNECTOR

PLUG

SCREEN

BAIL

RELIEF

STRAIN

LOCK

110/220V SWITCH,

CORD

POWER

BLUE LOCTITE 425

8-32 X 3.5 FHCS (4),

TRANSFORMER SCREWS

ON/OFF

4-40 X 3/16 SHCS

(2), BLUE LOCTITE 242

SWITCH

Page 7-26

Page 7-26Page 7-26

November 2000

LP6 Plus, LP10, and LP20 Technical Manual

Back Panel (LP20)

Back Panel (LP20)Back Panel (LP20)

Reference only

Reference onlyReference only

Back Panel (LP20)

Back Panel (LP20)Back Panel (LP20)

November 2000

Page 7-27

Page 7-27Page 7-27

Nurse Call Board

Nurse Call BoardNurse Call Board

Nurse Call Board

Nurse Call BoardNurse Call Board

LP6 Plus, LP10, and LP20 Technical Manual

P1

1 2 3 4 5

C6

+8 V

RESET VISUAL AUDIO

C3

C5

0.01u

P2

1 2 3 4 5

C2

0.01u0.01u 0.01u

C4

0.01u

P3

1 2 3 4

0.01u

C1

1N4004

R2

10k

R1

100k

D1

BS170

Q1

10

K1

8

3

1

9

7

2

4

TQ2E-9V

D2 1N4004

JP1

JP2

SG1 GL-75L

Reference only

Reference onlyReference only

Page 7-28

Page 7-28Page 7-28

November 2000