DX Specialty Controls Remote DX-SCR Installation Manual

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DX Specialty Controls Remote DX-SCR

Installation Manual

by

GBK64327 Issue 3, May 2003

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About this Manual

This manual has been designed to help you install and configure a DX Specialty Controls Remote (DX-SCR). The SCR is a DX Master Remote that enables full control of all

powerchair functions, communication devices, environmental controls, computers, televisions, etc., all from the one input device.

This manual describes installation of the SCR only and must therefore be read in conjunction with the Installation Manuals for all other DX Modules present in the system.

This manual must be read and fully understood prior to commencing installation. For more information concerning this, or other Dynamic products, contact Dynamic Controls or an agent as listed in Sales and Service Information.

Throughout this manual there are a few symbols that will help you quickly identify the purpose of the paragraph that follows:

Notes:

Notes provide supporting information for the previous paragraph or section that should be followed in order to install, configure, and use the DX-SCR safely and efficiently.

Warnings:

Warnings provide important information for the previous paragraph or section that must be followed in order to install, configure, and use the DX-SCR safely and efficiently.

Do not install, maintain or operate this equipment without reading, understanding and following this manual – including the Safety and Misuse Warnings – otherwise injury or damage may result.

Due to continuous product improvement Dynamic reserves the right to update this manual.

This manual supersedes all previous issues, which must no longer be used.

Any attempt to gain access to or in any way abuse the electronic components and associated assemblies that make up the powerchair system renders the manufacturer’s warranty void and the manufacturer free from liability.

Dynamic and the Dynamic logo are trademarks of Dynamic Controls.

All other brand and product names, fonts, and company names and logos are trademarks or registered trademarks of their respective companies.

Dynamic owns and will retain all trademark rights and Dynamic or its licensors own and will retain all copyright, trade secret and other proprietary rights, in and to the documentation.

All materials contained within this manual, in hard-copy or electronic format, are protected by copyright laws and other intellectual property laws.

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Table of Contents

1 Introduction ... 1

2 Physical Characteristics ... 3

3 Installation and Testing ... 5

3.1 General Considerations... 5

3.2 SCR Mounting ... 6

3.3 SCR Wiring Connections... 7

3.3.1 DXBUS Connection ... 8

3.3.2 DXBUS Length and Voltage Drop Restrictions... 8

3.3.3 Jack Socket Connectors ... 9

3.3.4 Jack Socket Switch Monitoring Options... 10

3.3.5 Programmer Socket... 11

3.4 Testing... 12

3.4.1 Power Up Responses ... 12

3.4.2 DX Remote Check Sequence ... 12

4 Programming... 13

4.1 Introduction... 13

4.2 Default Programs ... 13

4.3 Auto Download ... 14

4.4 Programming Tools ... 15

4.4.1 Dynamic Wizard... 15

4.4.2 HHP ... 16

4.5 DX Remote Wizard Programming ... 16

4.6 DX Remote HHP Programming... 17

4.6.1 Initial Operation... 17

4.6.2 Test Driving and Saving Changes ... 18

4.6.3 To View / Adjust Drive Programs ... 18

4.6.4 To adjust the Joystick Source ... 19

4.6.5 Joystick Reverse... 20

4.6.6 View/Edit Specialty Controls Remote ... 20

4.6.7 To Enable Technician Mode ... 21

4.6.8 Joystick Calibration... 22

4.6.9 Combined Lighting Actuator Module (CLAM) Enable .... 23

4.6.10 Lighting Module (LM) Enable ... 23

4.6.11 Veer Compensation ... 24

4.6.12 Load Compensation... 25

5 Operation ... 27

5.1 DX System Components ... 27

5.1.1 On/Off System ... 27

5.1.2 Battery Gauge Display... 27

5.2 Joystick OONAPU ... 27

5.3 User Input Devices ... 28

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5.4 Modes, Sub-modes and Functions... 29

5.4.1 Modes... 29

5.4.2 Sub-modes and Functions... 31

5.4.3 Categorising Sub-modes ... 32

5.5 Navigating the SCR ... 32

5.5.1 User Input Device plus Mode Switch ... 33

5.5.2 User Input Device Only... 34

5.5.3 Scanning Mode... 34

6 Batteries and Charging... 35

6.1 Battery Type ... 35

6.2 Battery Charging ... 35

6.3 Battery Gauge ... 36

6.4 Battery Saver... 37

6.5 Battery Condition Warnings... 37

6.5.1 Battery High Warning Condition... 37

6.5.2 Battery Low Warning Condition ... 38

6.5.3 Low Capacity Warning Condition... 38

7 Accessories + Parts List ... 39

7.1 Fault Display... 39

7.2 Limp Mode... 43

7.3 Wizard Diagnostics... 44

7.3.1 To View Diagnostics ... 44

7.4 Status Report ... 44

7.4.1 View Status Report ... 44

7.4.2 Print Report ... 45

7.4.3 Save Report to File ... 45

7.5 Chair Log... 45

7.5.1 View the Chair Log ... 45

7.5.2 Erase the Chair Log... 46

7.5.3 Chair Log Codes... 46

8 Appendices... 49

8.1 Specifications ... 49

8.1.1 Electrical Specifications ... 49

8.1.2 Mechanical Specifications ... 49

8.1.3 Environmental Specifications... 50

8.2 Intended Use and Regulatory Statement... 51

8.3 Electromagnetic Compatibility (EMC) ... 52

8.4 Maintenance... 53

8.5 Warranty... 54

8.6 Safety and Misuse Warnings... 55

8.7 Contact Details ... 57

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Chapter 1 : Introduction

1 1 Introduction

The DX Specialty Controls Remote (SCR) is designed to control the function of any single input device (Sip and Puff, Switched inputs, proportional or switched joysticks, RIM, etc.) installed into the DX System, allowing a user of virtually any disability to control all on-chair and off-chair functions from the input device. All command decisions are made by the user after responding to the user-friendly prompts displayed by the SCR=s easy-to-read Liquid Crystal Display (LCD). These user-friendly prompts are fully and easily programmable by either dealer or therapist to accommodate the precise needs, terminology, language and abilities of the user.

A Battery Gauge, On /Off switch, and MODE switch are present on the

Remote, along with the standard DXBUS connector (for connection to the DX System), an XLR type charger socket and a DX Programming socket. Three jack sockets are also present, designated as Remote On/Off switch, Auxiliary Input Switch and Emergency Stop.

The SCR can be mounted anywhere within the user=s field of vision, typically using either a AGooseneck@ or ARod based@ mounting system.

Example DX System

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Chapter 2 : Physical Characteristics

3 2 Physical Characteristics

On/Off Button Toggles the entire DX control system between the On and Off modes.

Mode Button Cycles through the programmed Modes.

Battery Gauge Battery charge level is indicated by a set of six LEDs. These are arranged from left to right as two red, two orange, and two green.

LCD Display A 4-line, 20 character backlit LCD to ensure good visibility in all conditions, including darkness. System faults are indicated by the LCD and all displayed prompts are fully customizable.

External Switch Sockets

Three 3.5mm (1/8@) jack sockets are supplied to allow connection of external switches.

Reverse LED This feature is not currently supported.

Programming Socket

(HHP and Wizard)

A standard HHP/Wizard Programming socket.

DXBUS Socket For connecting the DX Remote with a DXBUS cable to other DX compatible modules.

Battery Charger Socket

Standard 3-pin XLR battery charger socket.

See Batteries and Charging for pin details.

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SCR Configuration

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Chapter 3 : Installation & Testing

5 3 Installation and Testing

3.1 General Considerations

The minimum installation requirements of a DX-SCR system are a 24V battery supply, motor and park brake, Power Module, a single switch input device and a SCR. This system can be fully developed to include environmental control devices, specific user input control methods (eg Sip and Puff), and a variety of other peripherals (e.g. infra red, actuator or lighting modules).

Minimum SCR System

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3.2 SCR Mounting

The SCR can be mounted on either side of the wheelchair in a position where the display is easily viewable for the user. If the SCR is mounted with the recommended gooseneck (DCL part no. DX-GNK-KIT), the user may make adjustments as necessary. Rod mounting is also possible.

Ensure the SCR and mounting system does not extend beyond the footprint of the chair.

Ensure the SCR does not impede the view of the user..

Two M4 fixing points on the base of the case are provided to attach the SCR to the preferred mounting system. A mounting bracket for the gooseneck is supplied along with two M4 x 10 countersink screws.

For safe installation, select a screw length that protrudes between 4mm and 10mm into the case.

Dimensions of the SCR mounting positions are shown at right.

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Dimensions of the gooseneck mounting bracket are shown below.

If the programmer socket is required to be accessible when the SCR is mounted, make allowance for this prior to fitting.

3.3 SCR Wiring Connections

Minimal wiring requirements of the SCR are connection to the DX system via the DXBUS connector and a single switch for control inputs. All sockets requiring semi-permanent connection are clustered together on the base of the SCR to ease looming, allowing wires to be routed down the length of the gooseneck.

Ensure all wiring is secured.

When looming, care must be taken to ensure that leads can not be transposed.

DXBUS cables are available in a number of standard lengths. Other cable lengths are available on request.

Do not use the frame of a wheelchair or scooter as the earth return for any lights or actuators. Making any low resistance connection to the frame is regarded as a possible safety hazard and not allowed by international performance and safety standards for wheelchairs and scooters.

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3.3.1 DXBUS Connection

The SCR has a single DXBUS connector, which allows a DXBUS cable from any DX Module to be used to connect the SCR into the DX System.

3.3.2 DXBUS Length and Voltage Drop Restrictions

Due to signal distortion that increases with increasing DXBUS length, the total length of all DXBUS cable must not exceed 15 metres in any topology.

Two of the DXBUS's four cores (DXB+ and DXB-) are used to supply power to the modules and to the loads connected to them. A Positive Temperature Coefficient (PTC) device in the Power Module limits the total DXBUS current to 12 A, to protect the DXBUS wiring and connectors. The topology and cable lengths used may reduce the DXBUS's upper limit to below 12 A.

For correct DX System operation the voltage drop on the DXBUS's DXB- wire due to return currents, must not exceed 1.0 V between any two modules within the DX System. Use a topology and module placement that reduces this voltage drop as low as reasonably possible.

Voltage drops occur along the DXBUS due to the return of current back to the battery through the small but finite resistance of the DXBUS cable and

connectors.

A DXBUS connector can be modelled as:

DXBUS Cable Model RCT = contact resistance = 5 mOhm

RCA = cable resistance = 12 mOhm / metre

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3.3.3 Jack Socket Connectors

Three 3.5mm jack sockets allow connection of external (or remote) switches.

Any normally open or closed, momentary or resistive switch may be connected to these sockets and configured with the Wizard or HHP

programming system. Any switches connected into these sockets should be clearly labelled as to their function.

Emergency Stop

Pressing this switch while driving will cause the chair to come to a rapid, but safe stop. When the chair is motionless, the Emergency Stop switch will act as a Mode Switch and cycle through the programmed modes.

On/Off Switch

Pressing a switch connected to this socket will toggle the DX System between the On and Off states.

Auxiliary Input

The function of this switch depends upon certain programmed parameters of the SCR.

Scanning Switch If scanning mode is enabled, pressing this switch selects the mode, sub-mode or function shown on the SCR display at the time.

5^th Switch If a mouse mode is active, this button acts as the left button (click) of a mouse.

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3.3.4 Jack Socket Switch Monitoring Options

The installer needs to carefully consider the implications of failure of any switches plugged into any of the SCR's jack sockets. This is especially true of the Emergency Stop and Auxiliary input, which may be safety critical for some applications. Failure of the switch, severing or damage to the switch wiring, or the inadvertent unplugging at the SCR can all render the switch function useless and each need to be assessed for risk.

The SCR offers switch monitoring options for each of the Emergency Stop and Auxiliary inputs that can be used to partially mitigate risk due to switch failure. These options can be specified either in the Wizards SCR ‘Control Options’ screen, or using the DX-HHP.

Monitoring of the Emergency Stop switch is selected using the panel of radio buttons in the ‘Stop Input Setup’ area.

Monitoring of the Auxiliary switch is selected using a similar panel of radio buttons, which appears under ‘Scanning’ whenever that driving option is chosen.

Unmonitored switch circuit using a Standard Switch

Allows the use of a standard Normally Open or Normally Closed switch but will NOT detect a failure in any part of the switch circuit. This option is not recommended for safety critical functions.

To select this option set the ‘Test at Power Up?’ and ‘Resistive Monitoring?’

Wizard options to ‘No’, and set the ‘Switch normally open/closed’ as required for the switch.

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Partially monitored circuit using a Standard switch

Allows the use of a standard Normally Open or Normally Closed switch. If this option is selected, the SCR will require the user to press the switch each time the chair is powered up. This will ensure the entire switch circuit is operational at that time. Once tested the SCR will allow driving but will NOT retest the switch circuit until the next power up. Consequently there is still an element of risk that a switch failure is undetected between power ups.

To select this option set the ‘Test at Power Up?’ Wizard option to ‘Yes’. The Status LED will flash if the unit is waiting for a switch to be pressed.

Continuously monitored circuit using a modified switch

This option is the most secure and is the recommended option for safety critical applications. To use this option the switch must be modified by adding 2 resistors as shown below.

These resistors allow the switch wiring to be continuously monitored and will ideally be as close to the actual switch as possible (e.g. inside the switch assembly).

To select this option set the ‘Resistive Monitoring?’ Wizard option to ‘Yes’.

This option cannot test that the switch itself will operate correctly when activated. If this is required also select ‘Test at Power Up?’ which will ensure that the switch itself is operational every time the chair is powered up.

Warning:

It is the responsibility of the installer to perform a risk assessment and take the necessary set-up and installation precautions to ensure safety under all conditions.

3.3.5 Programmer Socket

The SCR has a single programming socket through which the Wizard or HHP are used to program the SCR.

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3.4 Testing

Ensure that all DX Modules used in your DX system have been installed as specified in their Installation Manuals. The SCR is required to be correctly programmed for the appropriate wheelchair prior to testing.

The SCR contains the complete wheelchair system set-up, from which all DX Modules download their relevant information when the DX system is first turned on. (See Auto Download for details).

3.4.1 Power Up Responses

Power up the SCR by pressing the On/Off switch.

The power up response for the SCR is:

• SCR version is displayed on LCD display.

The first time the SCR is turned on, the LCD display will show a fault. Turn the SCR off then on again to clear this fault. (See Auto Download).

• At least one of the LEDs on the Battery Gauge will be on.

• The current Mode will be displayed.

3.4.2 DX Remote Check Sequence

Perform the following check sequence:

1. Press the On/Off switch again and check the display turns off. Press it again to turn it on.

2. Press the Mode switches. Check that the Modes cycle as expected.

3. Check all lighting functions operate correctly (where applicable).

4. Perform the remainder of the tests as outlined in the testing sections of the Installation Manuals of all other DX Modules used on the wheelchair.

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Chapter 4 : Programming

13 4 Programming

Warning:

Incorrect or inappropriate programming of a DX System can put the wheelchair into a dangerous state. Dynamic Controls accepts no responsibility or liability for accidents caused by incorrect

programming. This programming section, the DX-HHP Manual, and the Dynamic Wizard Installation Sheet/On-line Help must be read and understood before attempting to program a DX System.

Ensure that the programmed wheelchair complies with all prevailing regulatory requirements for your country and application.

4.1 Introduction

The driving performance of the DX System is dependent on its programming.

Different features can be selected and parameters fine-tuned for a particular application, or to suit the requirements of an individual. The SCR and the DX Power Module are the modules most responsible for defining the driving performance of the DX System.

4.2 Default Programs

The SCR is programmed during manufacturing with a set of factory default settings, which are incorporated into a controlled document by Dynamic. The default settings will not be suitable for all DX Systems and must be checked and reprogrammed prior to connecting with a DX System.

The optimum settings for all programmable DX Modules are determined by the wheelchair manufacturer (OEM). If more than one type of wheelchair is to be used by the customer, each wheelchair type may have its own set of optimum settings.

Warning:

If a wheelchair is programmed with settings other than default, under some very rare fault conditions default settings could be automatically restored, thereby changing driving characteristics.

This in turn could lead to a chair moving in a

direction

or speed that is not intended. Programmers should consider this risk when programming settings other than default.

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4.3 Auto Download

The DX System has a feature called Auto Download. It is designed to

minimise the programming requirements associated with Module servicing by downloading the correct programming to a replacement DX Module.

If a DX Module is identified as being faulty it will be replaced by a new one.

The replacement module is likely to be programmed differently to the original, which could leave the wheelchair in a dangerous state. The DX System automatically detects that a DX Module swap has occurred, and the programmed data from the old module is transferred to the replacement module.

Auto Download is achieved by the SCR containing both its own programming and also a backup copy of the programmed data for all other DX Modules.

When a module swap is detected, or a checksum error found in a module, the SCR automatically downloads its backup copy to the module. The Auto

Download occurs immediately on power up after the Module has been replaced.

Warning:

When a SCR is replaced it will perform an Auto Download to all DX Modules. This may result in incorrect and dangerous programming for a particular wheelchair system if the wheelchair program

installed in the Remote is not suitable for that wheelchair system.

Do not attempt to drive or test the DX System before the correct and suitable wheelchair program has been installed in the Remote using the Wizard.

The Remote can be programmed with the Wizard using a >dummy= DX System and/or a 24V power supply, or on the wheelchair provided driving is prevented e.g. by disengaging the drive wheels.

After replacing any DX Module, turn the DX System off, then on again, to initiate the Auto Download of the DX Remote backup data. When an Auto Download has occurred, but the system needs to be cycled on and off, a Module Fault is displayed on the LCD screen and also the Status LED of the offending module. When the System if turned off then on again, the fault is cleared and the Auto Download is correctly terminated.

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15 4.4 Programming Tools

Two programming tools are available, the Dynamic Wizard and the HHP.

4.4.1 Dynamic Wizard

The Wizard is a PC based tool suited to programming production runs of identical wheelchairs or modules, or individual highly customised wheelchairs.

The Wizard is available in several versions:

OEM: Generally used by the wheelchair manufacturer is able to program a wide range of parameters.

DEALER: Similar in function to above, but with a reduced range of programmable options. This ensures that options that the manufacturer wishes to keep control of cannot be disturbed. Parameters that may cause hazards or require special expertise to set are not available for adjustment.

ENHANCED DEALER: As Dealer above, but with the ability to edit parameters that relate to wheelchair accessories (e.g. actuators)

FACTORY: Can only replace Standard or Custom Wheelchair Programs. No editing or diagnostics available.

Warning:

The Wizard is a very powerful tool and as such requires well trained operators and a disciplined approach to usage and distribution.

It is up to the wheelchair manufacturer to determine whether they will allow distribution of Wizards to dealers. Refer to the Wizard Documentation for further details.

The DX Remote can be programmed with the Wizard using a 24V power supply and an optional PM. If the Remote is connected directly to the 24V power supply, then a DXBUS Cable can have one end modified to connect to the power supply.

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4.4.2 HHP

The DX Hand Held Programmer (HHP) is the standard programming tool used by dealers, allowing easy adjustment of all commonly adjusted Drive Program parameters.

Warning:

The DX HHP is for use only by wheelchair manufacturers, their authorised dealers and support personnel. It is not intended to be used by the wheelchair user.

The DX HHP Manual should be read and understood before attempting to use it.

4.5 DX Remote Wizard Programming

The Wizard accesses a set of parameters that are programmed to define the configuration desired by a wheelchair manufacturer.

Some parameters can be both read and written to (edited) by an OEM or a Dealer. Other parameters can only be read but not edited. Some parameters available to an OEM are not displayed for a Dealer.

The DX System, with the DX Remote, supports up to five user selectable Drive Programs. The Drive Programs govern the performance of the

wheelchair, as suitable for different environmental and user conditions. Drive Programs are also adjustable with the HHP.

Remaining parameters are related to other system functions and DX Modules, which may, or may not, be included in your DX System.

For detailed assistance when using the Wizard, please refer to the Wizard Online Help.

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17 4.6 DX Remote HHP Programming

Warning:

Do not plug the HHP Programmer in while the vehicle is in motion.

Plug in the HHP Programmer while the DX System is turned on. A setting is saved once the ‘NEXT’ button is pressed. If the DX System is turned off during programming, the current parameter being modified will not be saved and the DX System will retain the previous setting.

Plugging the DX Hand Held Programmer (HHP) into an activated DX System gives immediate access to a set of main menu options. The length of the main menu depends on how many DX Modules are connected to the DXBUS.

Refer to the DX HHP Manual for full details.

4.6.1 Initial Operation

1. When the HHP is plugged into the Remote’s Programmer Socket the initial screen appears for two seconds.

Dynamic DX Programmer VERSION 1.xx

If a fault has occurred, the fault screen appears.

SYSTEM FAULT 5

L park brake EXIT

The number and message displayed represents the fault. See Fault Display for the list of faults that can be displayed.

Press EXIT to return to the main menu.

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2. Then the main menu screen reads :

* * MAIN MENU * * View or edit?

Program : 1 ?

NEXT YES

Pressing NEXT cycles through the Main Menu options. These are: the Drive Programs, Technician Mode enable / disable and View / Edit Specialty Controls Remote.

4.6.2 Test Driving and Saving Changes

Changes can be test driven before being permanently saved as the DX System can be driven with the HHP plugged in. Even if the HHP is

disconnected the changes will remain current unless the DX Remote is turned off. Once turned off, the settings will return to the original values.

Changes are saved when the ‘NEXT’ button on the HHP is pressed. If the DX Remote is turned off before the HHP is returned to the main menu, all

changes to the current parameter being modified are lost.

4.6.3 To View / Adjust Drive Programs

Pressing ‘EXIT’ at any point during the procedure will return you to the main menu.

1. Press ‘Next’ in the main menu until the appropriate Drive Program is shown.

* * MAIN MENU * * View or edit?

Program : 1 ?

NEXT YES

2. Press ‘YES’ to edit Drive Program.

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3. The screen now reads :

TUNE PROG 1 RESPONSE Max forward speed

25 %

EXIT NEXT UP DOWN

Press ‘NEXT’ to step through the adjustable parameters and press ‘UP’ or

‘DOWN’ to adjust the value (excluding Joystick Source).

These are : Max forward speed Forward Acceleration Forward Deceleration Max reverse speed Reverse acceleration Reverse deceleration Max turning speed Turning acceleration Turning deceleration Damping point Joystick Source Joystick Reverse

4.6.4 To adjust the Joystick Source

1. The Joystick Source screen reads :

TUNE PROG 1 RESPONSE Joystick source

Local

EXIT NEXT SWAP

2. Pressing ‘SWAP’ toggles the parameter between :

‘Remote’ if an RJM based input device is fitted and;

’Local’ if the joystick on the Remote is to be used. As there is no ‘Local’

joystick on the SCR, this should always be set to ‘Remote’.

This setting does not affect the ACU profile (Profile 6).

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4.6.5 Joystick Reverse

1. The Joystick Reverse screen reads:

TUNE PROG 1 RESPONSE Joystick reverse

No

EXIT NEXT SWAP

2. Pressing ‘SWAP’ toggles the parameter between ‘No’ and ‘Yes’. Reverses the direction of the controlling joystick. The controlling joystick is either the Remote’s inbuilt joystick or an RJM based joystick, depending on whether

‘Remote’ or ‘Local’ has been selected in “Joystick Source”. This can be set for each profile. Profile 6 will affect the ACU.

If set to ‘No’, forward and reverse joystick deflection will cause forward and reverse motion respectively.

If set to ‘Yes’, forward and reverse joystick deflection will cause the opposite effect. Used if the Remote is mounted in an other than standard orientation to maintain joystick sense.

This parameter is identical to the Wizard parameter ‘Reverse Joystick Forward/Reverse’.

4.6.6 View/Edit Specialty Controls Remote

1. Press ‘NEXT’ in the main menu until the View/Edit Specialty Controls Remote screen is shown.

* * MAIN MENU * * View/Edit Specialty Controls Remote

NEXT YES

2. Press ‘YES’ to edit settings.

3. The screen now reads:

AUX INPUT RESISTIVE MONITORING

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Press ‘NEXT’ to step through the adjustable parameters and press

‘CHANGE’ to adjust the value.

Pressing ‘EXIT’ at any time will return you to the Main Menu screen.

4.6.7 To Enable Technician Mode

1. Press ‘NEXT’ until the Technician Mode screen appears :

* * MAIN MENU * * Technician Mode Disabled. Enable ?

NEXT YES

2. Pressing ‘YES’ toggles this screen between Technician Mode Enabled and Technician Mode Disabled. If disabled, press ‘YES’ to enable.

3. Press ‘YES’ and a password screen will appear. Enter the three-digit password.

Technician Mode Enter Password

0 0 0

EXIT D1 D2 D3

4. Press the D1, D2 and D3 buttons to cycle each digit through to the correct password. When the password reads correctly, press the ‘EXIT’ button.

5. The screen now reads :

* * MAIN MENU * * Technician Mode Enabled. Disable ?

NEXT YES

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4.6.8 Joystick Calibration

1. Enable the Technician Mode.

2. Press ‘NEXT’ in the main menu until the screen reads :

* * MAIN MENU * * View or edit Remote Module ? (Tech Only)

NEXT YES

Press ‘YES’.

3. The display reads:

JOYSTICK CALIBRATION

EXIT NEXT BEGIN

Pressing ‘EXIT’ at any point during the calibration procedure will return you to the Main Menu.

4. Press ‘BEGIN’.

JOYSTICK CALIBRATION Rotate J/S

-> Neutral -> END

EXIT END

5. Move the joystick around the outer physical extremities of the restrictor plate. Ensure that all corners are pressed into.

Return the joystick to neutral.

6. Press ‘END’ to end the sequence and return to the main menu.

The calibration is saved.

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4.6.9 Combined Lighting Actuator Module (CLAM) Enable

NEXT YES

Press ‘YES’.

CLAM Disabled. Enable ?

EXIT NEXT YES

Pressing ‘YES’ toggles between CLAM enabled and CLAM disabled.

Setting this parameter to ‘enabled’ allows the CLAM or TAM to be used in the DX System.

Pressing ‘EXIT’ at any time will return you to the Main Menu.

4.6.10 Lighting Module (LM) Enable

NEXT YES

Press ‘YES’.

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LIGHTING Disabled. Enable ?

EXIT NEXT YES

Pressing ‘YES’ toggles between ‘Enabled’ and ‘Disabled’. Setting this parameter to ‘Enabled’ allows a Lighting Module to be used in the DX System. Enabling the Lighting Module will disable the lights on the CLAM.

4.6.11 Veer Compensation

2. Press ‘NEXT’ in the main menu until the screen reads:

* * MAIN MENU * * View or edit Power Module ? (Tech only)

NEXT YES

Press ‘YES’.

VIEW/EDIT POWER MOD Veer Compensation

RIGHT 0%

EXIT NEXT LEFT RIGHT

Pressing ‘LEFT’ or ‘RIGHT’ compensates for veer (as a %) in the left or right motor.

Press ‘NEXT’ to program Load Compensation.

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4.6.12 Load Compensation

2. Press ‘NEXT’ in the main menu until the screen reads:

* * MAIN MENU * * View or edit Power Module ? (Tech only)

NEXT YES

Press ‘YES’.

3. Press ‘NEXT’ until the Load Compensation screen appears:

VIEW/EDIT POWER MOD Load Compensation

95 milliohms

EXIT NEXT UP DOWN

Pressing ‘UP’ or ‘DOWN’ raises or lowers the Load Compensation.

Press ‘NEXT’ to program Veer Compensation.

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Chapter 5 : Operation

27 5 Operation

5.1 DX System Components

Warning:

The SCR will operate safely at very low temperatures, however, since the primary user feedback is via an LCD (Liquid Crystal Display) whose performance can be severely affected by extreme cold temperatures (below 0°C), users need to be instructed accordingly if the display is a critical part of the wheelchair operation (e.g. in scanner mode).

If the SCR needs to be operated in extreme cold temperatures, we recommend the power be left on at all times and a thermal insulating wrap applied to the SCRs metal case. This will ensure the internal self- heating of the electronics can keep the LCD warm enough to prevent the display “freezing”.

5.1.1 On/Off System

The On/Off Buttons toggle the DX system power on or off. There are three ways to turn the DX system On or Off. The On/Off Button on the front panel (for attendant use) or a switch plugged into the On/Off jack socket on the base of the SCR. If enabled, an automated ‘Sleep’ feature will automatically power the DX System down after a programmed amount of time. It will power up after operation of the normal user input (i.e. joystick or AUX switch if in Scanning mode).

5.1.2 Battery Gauge Display

Battery charge level is continuously indicated by a set of six LED's. These are arranged from left to right as two red, two orange and two green.

The Battery Gauge provides true, useable battery capacity information, and indicates other related battery conditions. Full battery capacity is indicated by all six LEDs on.

5.2 Joystick OONAPU

The SCR features Out Of Neutral At Power Up (OONAPU) detection. If the system is powered up or an inhibit condition is removed while the joystick is

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not in the neutral position, the LCD display will display a fault for either as long as the condition persists or for a maximum of 5 seconds.

The joystick is used as an example, but this theory can be applied to any input device interconnected with the DX System (i.e. While powering up, accidental pressing of the Auxiliary Input switch occurs. The LCD screen displays a fault for as long as the button is depressed or for a maximum 5 seconds).

Removing an inhibit condition occurs in situations such as changing to a driving from a non-driving Drive Program, or removing a battery charger. If the condition persists, after 5 seconds a DX Module Fault (Flash Code 1) is

signalled on the LCD screen. This is a latching fault and must be cleared by powering the system down and up again (with the joystick in neutral).

An OONAPU fault will also be generated when changing the joystick source. If the Drive Program is changed, causing a joystick swap while the joystick is not in the neutral position a latching fault, as described above, will occur. If the Attendant / User switch on the DX-ACU is toggled while the joystick is not in the neutral position, the fault is non-latching and the system does not need to be powered down to clear the fault.

OONAPU can be turned off with the Wizard if it is causing problems for a user, but should be left on in most circumstances.

5.3 User Input Devices

As there is no input device provided by the SCR itself, a secondary remote input module is required (unless in Scanning Mode) and must be connected into the DX System via the DXBUS. Some of these input devices (e.g. TASH) require an additional DX module to translate the commands into a usable format. See below for examples of input modules.

Input Module DCL Part # Requirement Heavy Duty Switched

Joystick

DX-RJM-HD

TASH style switched input devices

DX-5SW

Compact proportional Joystick

DX-RJM

Sip and Puff DX-SNP

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29 5.4 Modes, Sub-modes and Functions

5.4.1 Modes

The SCR offers the user a vast array of functions, split into a number of different categories. Each category is referred to as a ‘Mode’. Examples of Modes are, driving the chair, controlling on-chair ECU functions, etc. These Modes can be accessed using any of the input devices supported by the DX System and can be configured by the Wizard Programmer.

A conventional DX Master Remote supports a maximum of 6 Modes (5 driving plus a seating mode), while the SCR can support up to 8 modes. A list of the Modes currently supported is provided below.

Mode Application Requirement

Drive Mode 1 Drive Chair with tuned response – e.g. indoors driving

Drive Mode 2 Drive Chair with tuned response – e.g. outdoors driving

Drive Mode 3 Drive Chair with tuned response – e.g. sports driving

Drive Mode 4 Drive Chair with tuned response – etc.

Drive Mode 5 Drive Chair with tuned response – etc.

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Seating Control Control of up to 5 seating functions – e.g. seat raise, back tilt, etc.

DX-TAM or DX- CLAM

Lighting Control Control of headlights, indicators and hazard lights

DX-CLAM, DX- LMZ, or DX-LM- TÜV

ECU 8 Output Control of up to 8 miscellaneous on- chair devices – e.g. page turner, communication aid, etc.

One or two DX- ECU

Infrared Control Infrared control of off-chair functions, including computer mouse control

DX-IRIS DX-PCMR for computer mouse)

By using the Wizard, it is possible to select up to 8 of these Modes, which can then be arranged in any order. Care should be taken when assigning Mode

‘locations’ so as to form a logical order of progression for the user as they toggle through the Modes. An example of a typical 6 Mode selection is given below.

Mode Location Mode Selected

Mode 8 Mode Unused

Mode 7 Mode Unused

Mode 6 IRIS Mode

Mode 5 Seating Mode

Mode 4 Drive Mode 4 (Sports driving – fastest)

Mode 3 Drive Mode 3

Mode 2 Drive Mode 2

Mode 1 Drive Mode 1 (Indoor driving – slowest)

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5.4.2 Sub-modes and Functions

The SCR functionality is more elaborate than that of a single level structure.

Mode - Sub-mode - Function gives a framework (similar to that of a family tree) of three full levels allowing a structure to be built around each Mode to satisfy all possibilities of control.

A Sub-mode is a level below that of a Mode. A number of Sub-modes can branch off a Mode, giving a second level of functionality. Below this is the Function of that Sub-mode (if required) which enables, yet again, a greater number of functions. For instance, the Infra Red Integrated System (IRIS) can send infrared signals controlling a wide variety of devices, such as Televisions and stereos, each requiring a large number of commands to be controlled.

Therefore the IRIS requires a more complex Mode structure in order to make fully utilise its functionality.

An example of this structure is given below.

Some modes are less complex and do not require any further levels in order to define their operation (e.g. Drive Modes).

SCR operation is based on the principle of hierarchy through which the user can navigate using the chosen input device. The IRIS is probably the most complex module to be controlled by the SCR but shows the full capabilities of the DX System. Most, if not all other modules require set-up for Mode and Function only (any Sub-modes being unnecessary), Drive Modes requiring only Mode level.

The SCR menu tree can be customized by the Wizard for maximum versatility for its purpose and minimum actions to perform a task. Programming options are:

1. Number of Modes (1 to 8)

2. Mode application (e.g. drive, seat control etc.)

3. Defining the number of sub-modes and resulting functions for the IRIS.

4. Defining the number of seating functions.

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5. Defining the number of ECU functions and whether it is latched or momentary.

6. Customizing the text displayed on the SCR’s LCD display for each Mode, Sub-mode and Function.

7. Defining or redefining the text for all ‘miscellaneous’ text and instructions.

5.4.3 Categorising Sub-modes

Sub-modes should be categorised so as to bring some sense to the structure.

This could be by categorising the devices by location (such as kitchen or bedroom) or by the device type (such as lights or appliances). Every user’s needs differ so a good knowledge of the user’s habits, environment and preferences will be required in order to set up the SCR to an optimum level.

5.5 Navigating the SCR

The SCR allows three alternative control options for navigating through the menu tree and operating functions. These options are configured using the Wizard to cater for differing levels of disability. Arrows displayed on the LCD signify the command direction to activate that function. The key for arrow directions is:

Arrow pointing up - Forward Arrow pointing down - Reverse Arrow pointing left - Left Arrow pointing right - Right

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5.5.1 User Input Device plus Mode Switch

This option demands the highest level of user capability, requiring the user to be able to operate a 4-quadrant input device as well as a separate Mode switch. Typical input devices are a joystick, Sip and Puff or a switched input device in combination with a “Buddy Button” for the Mode control. After configuring the SCR for this device, operation is as follows.

If a Mode option is displayed on the SCR,

each activation of the Mode button cycles through each of the modes before wrapping back to the first mode.

In each Mode that the user input device has no effect, forward and reverse commands of the user input device will step forwards or backwards through the Modes.

If one of the Sub-mode or Function options is displayed,

activation of the Mode button will ‘Escape’ out of the current option and into the parent Mode’s display. Subsequent pressing of the Mode button will cycle through the Modes as before.

Some DX input devices already have Mode control capabilities. For example, a ‘double soft sip’ on the DX-SNP will also result in the Mode being advanced. If the input device has this capability, this may be used instead of the “Buddy Button”.

Once the required Mode has been selected, the user input device is used to negotiate through the Sub-modes and functions available for the currently selected Mode.

If the Mode has no Sub-mode or Function,

control is automatically available as soon as it is selected. For instance, if a Drive Mode is currently selected, the input device will now cause the chair to move at the programmed rate for that Drive Mode.

If the Mode has a Sub-mode or Function,

perform a ‘right’ command with the user input device to select the Mode.

Successive ‘forward’ commands will cycle through the Sub-mode options.

Once the required Sub-mode has been selected, successive ‘right’ commands will cycle through the available Functions for that Sub-mode. Once the

required Function has been selected, a ‘forward’ or ‘reverse’ command will perform the required task. At all stages a prompt at the bottom of the LCD screen will instruct the user as to the required action.

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5.5.2 User Input Device Only

This option requires the user to be able to operate a 4-quadrant input device.

Typical input devices are a joystick, Sip and Puff or a switched input device.

As this method uses the input device for both selection and operation of the Mode, conflicts would occur between selection commands and Function commands. Therefore, a timeout is implemented so that the user input device will revert back to a Mode selection role after a preset length of inactivity as an operating device. After configuring the SCR for this device, operation is as follows.

With this method of control, all mode selections take the form of questions. A

‘forward’ command will cycle through the Modes while a ‘right’ command will select that Function. From that point, the input device will become the

operating method, in this case causing the chair to move.

The display changes to..

…where ‘Time to exit’ displays and counts down the number of seconds remaining until the input device reverts back to a Mode selection device. The amount of time before timeout occurs is programmable by the Wizard.

Every time the input device is used, the Time to exit is reset to the timeout value. Once zero is reached, the display will reset to the previous level of action (i.e. from Function to Submenu).

Alternatively, where an Emergency Stop switch is existing in the DX System, this may be used, when the chair is stationary, to bypass the timer and reset immediately to the previous level of action.

5.5.3 Scanning Mode

This option requires the use of a single switch only. The SCR automatically advances through the Mode options at a Wizard programmed rate (e.g. if this value is programmed to 2 seconds, each Mode option will display for 2

seconds before advancing to the next Mode screen). When the required Mode is displayed, the user must hit the button to take them either to the Sub-modes for that Mode (if any) or to the Functions for that mode. Hitting the button again selects the current Function and the SCR begins scanning through the control options.

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Chapter 6 : Batteries and Charging

35 6 Batteries and Charging

6.1 Battery Type

The DX System is designed to perform optimally with either wet Lead-Acid or Gel Cell 24 V deep cycle batteries, rated at 20 - 120 Amp hours. The

maximum average discharge rate must not exceed half the rated capacity, in Amp hours.

High continuous discharge rates dramatically reduce the available battery capacity. For example, at a discharge rate equal to the rated capacity, the available capacity is 50 - 60 %. At a discharge rate of half the rated capacity, the available capacity is 70 - 80 %.

A wheelchair that draws maximum average battery current of 20 A, requires a battery of at least 40 Amp-hours. A battery of only 20 Amp-hours, would begin to suffer a drop in performance at about half of its available capacity. The 40 Amp- hour battery would have a full performance range of 4.5 times greater than the 20 Amp hour battery; a 80 Amp hour battery would only increase this range by 2.5 when compared to a 40 Amp hour battery.

6.2 Battery Charging

The satisfactory performance of the DX system is critically dependent on the type and state of the batteries. The battery charger used must be correctly selected and adjusted according to the battery manufacturer’s instructions.

Failure to do so may damage or destroy the batteries, give poor range, or be potentially dangerous. Batteries should not be abused (for example by deep discharging or overcharging) and must be operated and maintained according to the manufacturer's instructions.

The battery charger socket is a 3-pin XLR type with a pin configuration as shown overleaf. Ensure that the charger used is compatible with this pin out before connection. The safety link between B- and the Inhibit pin must be fitted so that the wheelchair is prevented from driving when the batteries are being charged. The Profile LED will extinguish to indicate that the wheelchair is inhibited.

Warning:

Do not disconnect batteries or open circuit the circuit breaker during charging. This is dangerous to both people and equipment.

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The inhibit pin is shorted to B- external to the DX SCR.

If the SCR is turned on while the charger is plugged in, the LCD screen will show a message once every 10 seconds. When disconnecting the charger, the SCR will automatically power down. To continue, press the power button again.

6.3 Battery Gauge

The Battery Gauge provides true, useable battery capacity information. A full battery with at least 85 % of rated capacity, is represented by all LEDs lit.

Some new batteries can start with as little as 80% capacity, developing higher capacity in their early life (up to 110%), before slowly deteriorating over their rated life.

As the battery voltage drops, the number of LEDs lit reduces from right to left.

When only the red LEDs are lit, the available battery capacity is typically less than 10 %. At this level and below, the Battery Gauge flashes at 1 flash per second to alert the user that the wheelchair is running on reserve capacity.

The battery capacity will reduce more rapidly in the reserve capacity range.

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Chapter 6 : Batteries and Charging

37 6.4 Battery Saver

The Battery Saver is a feature programmed into the DX Remote. When the battery capacity drops below 21V to the reserve range (only two red LEDs lit), the wheelchair performance is reduced. This is to preserve the life of the battery by encouraging the user to recharge the battery before it becomes harmfully flat.

Operating the wheelchair with more than two LEDs of the Battery Gauge lit will generally give normal wheelchair performance. This is provided that the battery size and the PM program settings are matched to the wheelchair.

6.5 Battery Condition Warnings

A battery warning is shown by the Battery Gauge flashing its LEDs, the number of which depends on what it currently has lit.

6.5.1 Battery High Warning Condition

This condition occurs when the battery voltage exceeds 28V, as measured by the Power Module.

The cause can be:

• The wheelchair is still on charge and the batteries are full or faulty.

• The batteries are overcharged.

• The wheelchair is travelling down a slope and the batteries are full or faulty.

The wheelchair will drive during this warning condition, which will reset automatically when the battery voltage drops below 28V.

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6.5.2 Battery Low Warning Condition

This condition occurs when the battery voltage drops below 23.3V, when the joystick is in neutral.

The cause can be :

If the Battery Gauge flashes with orange or green LEDs lit, but the cause is not due to a Battery High warning condition, the battery or battery wiring may be faulty.

If the Battery Gauge flashes with just the left 2 or 3 LEDs after stopping the wheelchair, the battery may be too small for the wheelchair type, or the battery may be old or damaged.

The wheelchair will drive during this fault condition, but the flashing will continue until the joystick is returned to neutral again.

A Battery Low warning normally coincides with a Low Capacity warning.

6.5.3 Low Capacity Warning Condition

When the calculated available battery capacity drops below 10% of full capacity the two left most red LEDs flash.

The wheelchair will drive during this condition but it shows that the battery is in the reserve capacity range and battery capacity will begin to reduce rapidly.

The Low Capacity warning will not stop until the batteries have been recharged adequately.

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Chapter 7 : Diagnostics and Fault Finding

39 7 Accessories + Parts List

DX Remote diagnostics can be examined from two platforms: from the fault displayed on the LCD screen of the SCR (and on the HHP); and from the Wizard, which can provide more detailed information about the fault.

7.1 Fault Display

Any fault condition on the DX system will cause the LCD screen on the SCR to display the fault (approximately every 20 seconds). The title of the fault is also displayed by the HHP if connected to the faulty wheelchair.

Faults that affect the safety of the chair will cause the chair to stop while less

critical ones will be indicated but allow the chair to continue driving. Some faults will automatically clear when the fault condition is removed, in which case the fault will no longer be displayed and the wheelchair may be driven normally. Other faults are latched and must be cleared by turning the DX System off, waiting for five seconds, and turning it back on again.

DX System Status LED Flash Code

Likely Cause of Condition and Possible Action

1 DX Module Fault (see Limp Mode below) Cause:

Action:

An Auto Download has occurred.

Turn the Remote off, leave for 5 seconds, then turn on again.

Cause:

Action:

The Remote is not correctly programmed.

Try reprogramming the Remote.

Cause: Connection between DX Modules may be faulty, or there may be an internal fault in a Module.

Action: Check DXBUS connections and replace where necessary.

If the Status LED on another Module is flashing, replace the Module.

An expected module may not be present (e.g. the DX Lighting Module).

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2 DX Accessory Fault Cause:

Action:

There is a fault in an accessory device attached to a DX Module (excluding the PM). Examples of faults in

accessory devices may be: the clutch is, or has been, disengaged; a light bulb is short or open circuit; an actuator terminal is shorted to Battery +.

Check all accessory devices connected to your DX System.

3 Left (M1) Motor Fault

Cause: The connection from the PM left (M1) connector to its associated motor, or the motor itself, is defective. The connection is either open or short circuit.

Action: Disconnect the left motor plug and check continuity between the motor pins on M1.

4 Right (M2) Motor Fault

Cause: The connection from the PM right (M2) connector to its associated motor, or the motor itself, is defective. The connection is either open or short circuit.

Action: Disconnect the right motor plug and check continuity between the motor pins on M2.

5 Left (M1) Park Brake Fault

Cause: The M1 plug connection to its associated Park brake is either open or short circuit.

Action: Disconnect the M1 plug and check continuity between the two Positronic park brake pins.

6 Right (M2) Park Brake Fault

Cause: The M2 plug connection to its associated Park brake is either open or short circuit.

Action: Disconnect the M2 plug and check continuity between the two Positronic park brake pins.

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7 Low Battery Fault

Cause: The battery charge is not sufficient to allow safe driving. It has fallen below 17V.

Action: Check battery connection and terminals. The battery voltage should be similar when the battery is on charge, and when it isn’t.

Check that fuses have not blown, or circuit breakers tripped.

Replace battery if worn out or if capacity is insufficient for the user’s needs.

Note: The wheelchair will behave sluggishly and the Battery Gauge will flash indicating low battery voltage prior to the display of this fault.

8 Over Voltage Fault

Cause: The battery voltage has exceeded 32V.

Action: If this fault occurs during battery charging, the battery charger is defective or incorrectly adjusted.

Check the battery chargers open circuit voltage is in accordance with the battery manufacturers limits, and is less than 32V.

Cause: The battery connector is making intermittent contact when the wheelchair is stopped, or travelling down a slope.

Action: Check that the battery wiring and terminating is secure.

9 CANL Fault (see Limp Mode below)

Cause: 1. An invalid voltage has been detected on the DXBUS CANL line.

2. Communication is not possible using the CANL wire.

Action: Check the continuity of the DXBUS cable.

Check for shorts between DXBUS pins. An open or short circuit on another DX Module can cause this fault.

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10 CANH Fault (see Limp Mode below)

Cause: 1. An invalid voltage has been detected on the DXBUS CANH line.

2. Communication is not possible using the CANH wire, or the CANH and CANL wires are shorted together.

3. Hazard lights were turned on when the DX System was turned on.

4. The CANH is used to generate a Kill signal by any DX Module, which detects an unsafe condition, or by an external device such as an emergency stop switch.

5. The CANH wire is pulled to either Battery + or Battery - and causes the DX System to shut down.

Action: Check the continuity of the DXBUS cable.

Check for shorts between DXBUS pins. An open or short circuit on another DX Module can cause this fault.

If the Hazard Lights were already switched on when the DX System was turned on, Flash Code 10 and Limp Mode (slow driving) may result.

To clear this fault, turn the Hazard Lights off, then turn the DX System off then on again.

If generated by a Kill signal, the cause of the fault is severe.

11 Stall Timeout Fault

Cause: The motor current has been at, or close to, current limit for longer than the Stall Timeout parameter value.

Action: Turn the DX System off and then on again.

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12 Module Mismatch

Cause: There is a compatibility problem between DX Modules in the System. The wheelchair will be disabled.

Action: Consult your Dynamic Service Centre.

Cause: The data held by the Remote for another DX Module is corrupt or incompatible with that module.

Action: Reprogramming the wheelchair system may correct this problem.

7.2 Limp Mode

If the DX System detects some faults, it will revert to Limp Mode. This is a reduced speed mode, which recognises problems, but allows the wheelchair user to limp home, where the problem can be assessed.

Warning:

If the DX System is displaying a fault and the chair enters Limp Mode, do not operate except to reach a safe environment. Proceed with caution as the chair performance may be significantly altered.

Have the chair serviced by a Service Agent.

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7.3 Wizard Diagnostics

The Wizard is used to provide diagnostics for the DX Remote.

7.3.1 To View Diagnostics

1. Enter the Wizard's Main screen as described in the Wizard Installation Sheet.

2. Select the ‘Diagnostics’ menu.

The menu displays the following options:

Status Report Print Report

Save Report to File View Chair Log Erase Chair Log

Print Chair Log prints the Status Report followed by the Chair Log. These reports should be sent along with a faulty controller to a Service Centre. Contact a

Dynamic Sales and Service Centre (refer to Sales and Service Information).

7.4 Status Report

Status report gives you the current status of the wheelchair, including faults and other warning conditions currently active. Pressing «?» or selecting ‘Info’ will display further information about the condition. Some conditions in the Status Report are not caused by actual faults, but are only temporary conditions e.g. a motor lead was not connected when the DX System was turned on and driving was attempted, producing a Motor Fault.

7.4.1 View Status Report

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45

7.4.2 Print Report

3. Select ‘Print Report’.

4. Enter any additional information required that can be printed along with the status report.

7.4.3 Save Report to File

3. Select ‘Save Report to File’.

4. Enter any additional information required that can be saved along with the status report.

5. Enter the location where you would like to save the text document.

7.5 Chair Log

The Chair Log displays all faults and warning conditions recorded for the

wheelchair since the Chair Log was last erased. Some conditions logged in the Chair Log are not caused by actual faults, but are only temporary conditions e.g. a motor lead was not connected when the DX System was turned on and driving was attempted, producing a Motor Fault. It is recommended to erase the Chair Log once the system is fully functional as only the previous 15 fault conditions are recorded.

7.5.1 View the Chair Log

1. Enter the Wizard's Main Menu screen as described in the Wizard Installation Sheet.

3. Select ‘Chair Log’.

4. From the ‘Modules Attached’ menu, select ‘UCM Remote’.

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7.5.2 Erase the Chair Log

1. Enter the Wizard's Main Menu screen as described in the Wizard Installation Sheet.

3. Select ‘Erase Chair Log’.

4. From the ‘Modules Attached’ menu, select ‘UCM Remote’.

7.5.3 Chair Log Codes

Below are listed the Chair Log codes and probable causes of these faults. If the suggested action does not remove the fault, contact a Sales and Service Centre.

Message Probable Cause and Action CPU / General Fault

Cause: Internal Fault Action: Replace Remote.

Consult an approved Dynamic Service Agent.

ADC Fault

Cause: Internal Fault Action: Replace Remote.

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Message Probable Cause and Action CAN Short Fault

Cause: Short between CANL and CANH.

Action: The short may be within a module or within a DX Cable, or the exposed DXBUS contacts may be shorted by foreign material.

Ensure that all DXBUS contacts are clean.

Warning: Open circuit breaker or disconnect from PM before probing around DXBUS connectors.

Disconnect any optional modules and turn on the Remote. Use the Wizard Status Report to check if the CAN shorted fault is still present. If possible, substitute the DXBUS Cable between the Remote and the PM. Disconnect any unnecessary DXBUS Cables. When the fault no longer occurs, add cables and

modules one by one until the faulty cable or module is identified.

Replace the faulty part. If the fault remains, try replacing the Remote and the PM.

If the fault cannot be reproduced, check all cables and DX connectors for foreign material or damage.

CANL Fault

Cause: CANL Failure

Action: Check for a short from CANH to another DXBUS wire, or a short from CANL to DXBUS – or DXBUS +.

Wake-up Fault

Cause: Incorrect voltage on CANH.

Action: Check for a short from CANH to another DXBUS wire, or a short from CANL to DXBUS – or DXBUS +.

Check battery wire terminations.

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Message Probable Cause and Action JS OONAPU Occurrence

Cause: The joystick was Out Of Neutral At Power Up. This is a fault

condition produced if the DX System is turned on while the joystick is not in the neutral or non-driving position.

Action: Allow the joystick to return to neutral and turn the DX System off then on again.

Power Button Open Circuit

Cause: The Remote On/Off switch may be short or open circuit.

Action: Check for broken wires or faulty connections.

Turn the Remote off then on again.

Power Button Stuck

Cause: The Remote On/Off switch may have been held down too long, or appears to be short-circuited or a wire to the power button is broken.

Action: Check for broken wires or faulty connections.

Turn the Remote off then on again.

Joystick Mirror Fault

Cause: Joystick internal fault.

Action: Replace joystick.

Joystick Absolute Error Fault

Cause: Joystick internal fault.

Action: Replace joystick.

Joystick Fault

Cause: The joystick may need to be re-calibrated.

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Chapter 8 : Appendices

49 8 Appendices

8.1 Specifications

8.1.1 Electrical Specifications

Parameter Value Compatible with standard DXBUS

Operating voltage range 18V - 32V dc

Charger rating 12A RMS continuous, limited by DXBUS

rating

Quiescent Current <1mA Off, typically 100mA On

8.1.2 Mechanical Specifications

Parameter Value

Weight 0.8 Kg

Dimensions 114mm x 89mm x 55mm

Mounting As per SCR Mounting

Case material Die-cast box, black powder coat finish