©2001 dynojet research, inc. all rights reserved

©2001 Dynojet Research, Inc. All Rights Reserved.

CPU Module Installation Guide

This manual is copyrighted by Dynojet Research, Inc., hereafter referred to as Dynojet, and all rights are reserved. This manual, as well as the software described in it, is furnished under license and may only be used or copied in accordance with the terms of such license. This manual is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Dynojet. Dynojet assumes no responsibility or liability for any error or inaccuracies that may appear in this manual. Except as permitted by such license, no part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, recording, or otherwise, without the prior written permission of Dynojet.

The Dynojet logo is a trademark of Dynojet Research, Inc.

Any trademarks, trade names, service marks, or service names owned or registered by any other company and used in this guide are the property of their respective companies.

Dynojet Research, Inc., 2191 Mendenhall Drive, North Las Vegas, Nevada 89081, USA.

Printed in USA.

Part Number: 98295108 Version 01 (07/2001)

TABLE OF CONTENTS

CPU Module InstallationIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Conventions Used In This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Removing the CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Installing the CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

CPU Module Installation Guidei

CPU MODULE INSTALLATION

This document provides instructions for installing the CPU module. To ensure safety and accuracy in the procedures, perform the procedures as they are described.

Document Part Number: 98295108

Version 01

Last Updated: 07-25-01

CPU Module Installation Guide1

C P U M O D U L EIntroduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INTRODUCTION

The CPU module is one of the four standard interconnected DynoWare EX+ dynamometer electronics modules. The CPU module contains a 32-bit processor which acquires data from the expansion modules and communicates to the main computer running the WinPEP software. The processor queries the expansion modules to determine their identity and capabilities.

For more information refer to your dynamometer installation guide.

TOOLS

The following tools are required to install the CPU module:

• 5/64-inch allen wrench

• No. 10 torx wrench

CONVENTIONS USED IN THIS MANUAL

The conventions used in this manual are designed to aid the user and protect both the user and the equipment.

TECHNICAL SUPPORT

For assistance, please contact Dynojet Technical Support at 1-800-992-4993, or write to Dynojet at 2191 Mendenhall Drive, North Las Vegas, NV 89081.

Visit us on the World Wide Web at www.dynojet.com where Dynojet provides state of the art technical support, on-line shopping, 3D visualizations, and press releases about our latest product line.

example of convention description

Bold Highlights items you can select on in the software interface, including buttons and menus.

The Caution icon indicates a potential hazard to the dynamometer equipment. Follow all procedures exactly as they are described and use care when performing all procedures.


I N S T A L L A T I O N G U I D EInstallation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSTALLATION

This section describes procedures for removing and replacing the CPU module.

Always turn the hardware stack power off before removing or making any connections.

REMOVING THE CPU MODULE

1 Turn the power switch off at the CPU module and unplug the power cord.2 Disconnect all of the cables from the hardware stack.

Figure 1: Hardware Stack

3 Using a No. 10 torx wrench, loosen the top right screw on the back of the CPU module to release the grounding strap.

Figure 2: Grounding Strap

atmospheric sensing module

power switch

RPM module

dynamometer input/output module

CPU module

stack base

grounding strap

screw on CPU module

Version 1 CPU Module Installation Guide3

C P U M O D U L EInstallation

4 Remove the cable ducts from each side of the CPU module.

5 Firmly hold the stack base with one hand and carefully lift the top three modules up, as straight as possible.

Figure 3: Remove Cable Ducts And Top Modules

6 Using a 5/64-inch allen wrench, remove the four black button-head screws (two on each side) from the stack base.

7 Remove the CPU module from the stack base.

Figure 4: Remove CPU Module From Stack Base

8 Tilt the CPU module allowing the four nuts (two on each side) to slide from the module.

Figure 5: Remove Nuts From CPU Module

cable duct

remove top modules

button head screws

nuts



INSTALLING THE CPU MODULE

Note: Examine the new CPU module for damage. Make sure the battery on the bottom of the module is properly seated. It the battery has come loose, contact Dynojet.

1 Insert the nuts you removed earlier into the new CPU module (two on each side).2 Secure the CPU module to the stack base.

2a Set the CPU module on the stack base.

2b Line up one of the front nuts with the stack base and secure with a button-head screw.

2c Line up the remaining front nut with the stack base and secure with a button-head screw.

2d Cover the back openings on the CPU module and tilt the module until the nuts slide down and hit your fingers.

2e Using the allen wrench, slide the nuts until they are aligned with the holes on the back of the stack base and secure with button-head screws.

Figure 6: Line Up Nuts With Stack Base

3 Carefully align the top three modules on the CPU connector.

Be sure to place one hand on the stack base as you are replacing the top modules in order to ground the modules.

4 Gently but firmly, snap the two module sections together.5 Make sure the grounding strap slips over the top right nut on the CPU module.

Note: Do not secure the grounding strap at this point.

line up front nut with stack base

use the allen wrench to slide nut into place


C P U M O D U L EInstallation

6 Verify each module is being recognized.

Note: Be sure to check for proper module communication before securing the grounding strap and cable ducts. This will make it easier to troubleshoot and reposition the modules if needed.

6a Attach the 9-pin serial cable from the PC to the RS-232 socket on the CPU module. Refer to Figure 8 for cable placement.

6b Attach the 3-pin power plug from the power supply to the CPU module with the flat side facing down. Refer to Figure 8 for cable placement.

6c Plug in the power supply to the power source. Turn the power switch on at the CPU module. Verify that the green power LEDs glow on each module.

6d Use Dyno Find to verify each module is recognized.

• Open Windows Explorer.• Double-click dynofind.exe located in the WinPEP folder (C:\WinPEP).• Click Search.• Verify each module is being recognized. Your CPU module number will

be different from the one used in this example.Note: Be sure any additional modules, such as the Air/Fuel Ratio module, are being recognized by Dyno Find.

Figure 7: Dyno Find Window

6e If the top modules are not responding, turn off the power and separate the top modules from the CPU module. Make sure all the connector pins are straight and carefully replace the top modules.

6f Repeat steps 6c through 6e until all of the modules are recognized.

7 Once all of the modules are recognized, turn the power off.8 Using the No. 10 torx wrench, tighten the top right screw on the back of the CPU

module to secure the grounding strap.9 Replace the cable ducts on both sides of the CPU module.

recognized modules



10 Attach the cables removed earlier to the hardware stack. Refer to Figure 8 for

cable placement.

• Attach the 9-pin shielded serial cable from the PC to the RS-232 socket on the CPU module (if not already connected). Tighten the screws.

• Attach the 25-pin shielded cable from the dynamometer to the Dynamometer Input/Output module. Tighten the screws.

• Attach the 9-pin connector from the hand-held pendant to the Dynamometer Input/Output module. Tighten the screws.

• Attach the 3-pin plug from the power supply to the CPU module with the flat side facing down (if not already connected).

• If you have an Air/Fuel Ratio module (not shown), attach the cable and tighten the screws.

• Be sure to attach any additional module cables you may have to the hardware stack.

Figure 8: Attach Hardware Stack Cables

11 Turn the power switch on at the CPU module and verify operation with WinPEP.

primary inductive pickup socket

9-pin, hand-held pendant

25-pin socket

9-pin, RS-232 socket

3-pin power plug

power LEDs


©2001 dynojet research, inc. all rights reserved

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