Curtis enAble 40 User manual

Manual
enAble® 40
Powerchair Control System
Read Instructions Carefully!
Specifications are subject to change without notice.
© 2011 Curtis Instruments, Inc. ® Curtis is a registered trademark of Curtis Instruments, Inc.
© The design and appearance of the products depicted herein are the copyright of Curtis Instruments, Inc. 37893 Rev E 12/11
Curtis Instruments, Inc.
200 Kisco Avenue
Mt. Kisco, NY 10549
www.curtisinstruments.com

Curtis enAble® 40 Manual, Rev. E iii
CONTENTS
1. OVERVIEW ..............................................................................1
Configurations .....................................................................2
Profiles .................................................................................3
MyChair™ ...........................................................................3
Swivel Chair .........................................................................3
Selectable Speed Modes ........................................................3
Multi-Function Inputs .........................................................4
Auto-Trim ............................................................................4
Dynamic Turn Radius Control ............................................4
2. INSTALLATION AND WIRING .............................................5
Installing the enAble® 40 System ........................................5
Powerbase Wiring ................................................................8
Connecting the Control Modules ......................................10
3. USER HANDCONTROL (1741) ...........................................11
Joystick ..............................................................................11
Keypads & Buttons ............................................................11
LCD Display .....................................................................16
4. ATTENDANT CONTROL (1742) ........................................17
Joystick ..............................................................................17
Keypad & Buttons .............................................................17
Indicator LEDs ..................................................................18
Takeover: User vs. Attendant Control ................................18
5. PROGRAMMABLE PARAMETERS .....................................19
Configuration Parameter and MyChair Parameter .............20
Drive Parameters (Profiles 1&2) .........................................21
Steer Parameters (Profiles 1&2) ...........................................22
Handcontrol Parameters ....................................................24
Speed Mode Parameters ....................................................25
Joystick Parameters ...........................................................26
Sound & Display Parameters ............................................27
Handcontrol Inhibit Parameters ........................................27
Seat Parameters .................................................................28
Lights Parameters ..............................................................29
Current Limits Parameters ................................................29
Multi-Function Input 1 Parameters ..................................30
Multi-Function Input 2 Parameters ..................................31
Multi-Function Input 3 Parameters ..................................32
CONTENTS

iv Curtis enAble® 40 Manual, Rev. E
CONTENTS
Compensation Parameters .................................................33
Motors & Brakes Parameters ..............................................34
Battery Parameters .............................................................35
6. MONITOR MENU ................................................................36
7. TUNING GUIDE ...................................................................38
8. DIAGNOSTICS & TROUBLESHOOTING .........................47
9. MAINTENANCE ...................................................................52
APPENDIX A Guidelines for BDI Setup
APPENDIX B Curtis WEEE / RoHS Statement
APPENDIX C Programming Devices
APPENDIX D Mating Connectors & Replacement Parts
APPENDIX E Specifications: enAble® 40 System

Curtis enAble® 40 Manual, Rev. E v
FIGURES
FIG. 1: Curtis enAble® 40 Powerchair Control System ....................... 1
FIG. 2: Mounting dimensions, 1740 powerbase .................................. 5
FIG. 3: Mounting dimensions, 1741 user handcontrol ......................... 6
FIG. 4: Mounting dimensions, 1742 attendant control ........................ 7
FIG. 5: Basic wiring diagram, 1740 powerbase ..................................... 8
FIG. 6: Wiring for the Multi-Function inputs ...................................... 9
FIG. 7: Connecting the control modules to the powerbase ................. 10
FIG. 8a: Handcontrol: Drive-Only keypad .......................................... 12
FIG. 8b: Handcontrol: Drive + Lights keypad ...................................... 13
FIG. 8c: Handcontrol: Drive + Actuators keypad ................................. 14
FIG. 8d: Handcontrol: Drive + Actuators + Lights keypad ................... 15
FIG. 9: Handcontrol: LCD display icons ........................................... 16
FIG. 10: Attendant control module ...................................................... 17
FIG. 11: Electronic gating,
using the Gate Shape parameter ............................................. 23
FIG. 12: Dynamic turn radius control,
using the Speed Full Turn and Speed No Turn parameters ..... 23
TABLES
TABLE 1: Handcontrol (1741) diagnostics ........................................... 48
TABLE 2: Attendant control (1742) diagnostics ................................... 51
TABLE E-1: Specifications, 1740 powerbase ...........................................E-1
TABLE E-2: Specifications, 1741 handcontrol ........................................E-1
TABLE E-3: Specifications, 1742 attendant control ................................E-1
FIGURES / TABLES

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Curtis enAble® 40 Manual, Rev. E
OVERVIEW
The Curtis enAble® 40 Powerchair Control System provides outstanding
versatility packaged in an easy-to-install, easy-to-use set of three components:
a powerbase (motor controller) with optional seat actuators and lights, an
ergonomic handcontrol with an intuitive icon LCD display, and an optional
compact attendant control. The enAble® 40 provides the perfect solution for
rear, mid, and front drive powerchairs. With its advanced seating control, it
will also be the right fit for many Rehab chair configurations.
1
1 — OVERVIEW
Fig. 1 Curtis enAble® 40
Powerchair Control System:
powerbase (1740),
user handcontrol (1741),
attendant control (1742).
Like all Curtis motor control products, the enAble® 40 system offers superior
control of drive performance, delivering a ride that is smooth and responsive in
all modes: acceleration, deceleration, forward or backward, on smooth indoor
surfaces, up a hill, or over gravel. Key features include
Powerbase:
✔ Best-in-market drive feel and control for front-, mid-, and
rear-wheel drive chairs.
✔ Full 50 and 75 amp power ratings in a rugged, compact, and
sealed enclosure.
✔ Revolutionary MyChair™ parameter tunes the overall chair
feel to fit each user’s unique needs — with a single parameter.
✔ Patented Auto-Trim automatically and continuously corrects
steering alignment, which can be thrown off by tire, motor,
and gearbox wear and replacement.
✔ Integration of lights and actuators provides these options at a
minimum cost and without installation of additional wiring
or modules.
✔ Four independent configurations in each powerbase, with
every parameter stored.

2 Curtis enAble® 40 Manual, Rev. E
1 — OVERVIEW
✔ Three flexible Multi-Function input pins for advanced seat
actuator inhibits, speed limiting, and swivel chair functions
usually found only on high-end systems.
✔ Powerbase software is upgradable in the field or in the factory.
✔ Onboard or offboard charging up to 8 amps accommodates
high capacity batteries.
✔ Compatible with the Curtis 1313 handheld programmer and
1314 PC Programming Station.
User handcontrol:
✔ Stylish and ergonomic design.
✔ Intuitive at-a-glance icons on LCD display with backlight,
viewable in any lighting.
✔ Four keypad configurations that match the application.
✔ Up to nine programmable speed modes are quickly and easily
accessible while driving.
✔ Industry standard 3-pin XLR charger/programmer port.
✔ Key-lock function to lock out unwanted drivers.
✔ Rugged and flexible communications cable.
✔ Field replaceable joystick and communications cable.
Attendant control:
✔ Easily connected to the system, with plug-in-line autoconnect
feature.
✔ Programmable takeover control.
✔ Field-replaceable joystick and communications cable.
The enAble® 40 system introduces a number of unique features. Here are some
brief descriptions.
Configurations
The powerbase stores four “configurations” — which are complete setups with
data settings for every parameter. This means the OEM can have four configu-
rations in one product—in effect, four products in one. The dealer can stock
just one “4-in-1” model and use the Configuration parameter to select the most
appropriate data block for each chair and each customer.
Each configuration is a complete setup, including two profiles for each.
This means the 1740 actually holds eight different ready-made setups.

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Curtis enAble® 40 Manual, Rev. E
1 — OVERVIEW
Profiles
Each configuration in the enAble® 40 has two complete operational profiles, each
with its own speed, acceleration, and other response parameters. The profiles
are used two ways:
• MyChair™ — where Profiles 1 and 2 can be blended to provide
a range of “feels,” through very simple and safe programming.
• Swivel Chair Mode — where Multi-Function Input 3 selects
between Profile 1 or Profile 2.
MyChair™
The MyChair™ function provides a very fast and simplified way for the therapist
to custom tune a chair to a specific user. With this one parameter, the therapist
can adjust the aggressiveness and speed of the chair to suit the situation.
MyChair™ works by blending the key parameters from Profiles 1 and 2
as the MyChair™ parameter is adjusted from 1.0 (Profile 1) to 2.0 (Profile 2) in
0.1 steps (for 11 different “blends”). Normally the OEM sets the parameters of
Profile 1 for a slower and less responsive chair and Profile 2 to the fastest and
most responsive settings. By adjusting the MyChair™ parameter, the therapist
can easily select between factory-determined safe minimum and maximum drive
configurations without understanding the details of chair stability, compensa-
tion, turn control, etc.
Swivel Chair
The Swivel Chair feature allows the Mode/Seat input to select between Profiles
1 and 2 while automatically switching the motor drive directions and wheel
position parameters, for chairs that have a two-position seat. These chairs pro-
vide front-wheel drive for high speed outdoor mode and rear-wheel drive for
indoor mode by simply rotating the seat 180 degrees.
MyChair™ does not work in Swivel Chair mode. Profile 1 is used when
the switch is open and Profile 2 when the switch is closed.
Selectable Speed Modes
The therapist can select from 2 to 9 different speed modes for the user to access
with the up/down speed mode buttons on the handcontrol. The therapist can
set each speed mode independently in a linear or non-linear progression. This
allows the therapist and user to select just the right number and speed for all
conditions of driving. Some need only “indoor” and “outdoor” modes while
other users prefer to use three or four different speed modes just around the
normal walking pace to make travel with pedestrian friends and family easier.

4 Curtis enAble® 40 Manual, Rev. E
Multi-Function Inputs
The enAble® 40 introduces a level of seat and vehicle speed limiting/inhibit
modes normally found on only the highest end Rehab systems. Three Multi-
Function Inputs on the powerbase plus the Inhibit on the handcontrol charger
port allow for flexible charger configurations (onboard/offboard), seat actuator
halts in one or both directions, and up to four separate speed limits linked to
these inputs.
Possible applications include:
• Inhibit drive and lock out tilt back (but not height or tilt
forward) for an offboard charger.
• Limit the drive speed when the seat is tilted, with a second
limit if the seat is raised.
• Provide an end-of-travel for any seat function.
• Lock out lift when the seat is reclined.
• Add a variable speed limit based on a seat tilt pot or seat
height pot.
Auto-Trim
As the chair is used the gearbox, motor brushes, and tires wear. This adversely
affects the straight-line drive performance and “trim” of the chair. The Auto-
Trim feature continuously monitors the driving behavior of the chair and
corrects the trim automatically to provide consistent straight-line performance
over the lifetime of the chair.
Dynamic Turn Radius Control
As the chair drives faster, its momentum increases dramatically and making
quick sharp corners can upset the balance and steering feel of the chair. The
Curtis proprietary Dynamic Turn Radius Control tempers the aggresssiveness
of the steering as a function of speed to provide an always-in-control feel at
every speed and through every turn.
Familiarity with your Curtis enAble® Powerchair Control System will help you
install and operate it properly. We encourage you to read this manual carefully. If
you have questions, please contact the Curtis office nearest you.
1 — OVERVIEW

5
Curtis enAble® 40 Manual, Rev. E
2 — INSTALLATION & WIRING
2
Fig. 2 Mounting
dimensions, Curtis 1740
powerbase.
Dimensions in millimeters (and inches)
INSTALLATION AND WIRING
INSTALLING THE ENABLE® 40 SYSTEM
The enAble® 40 modules—powerbase, user handcontrol, and attendant con-
trol—have been designed for convenient installation.
Mounting the 1740 Powerbase
The powerbase is easily mounted to the chair by means of two bolts, and can
be oriented in any position.
A groove on the underside of the powerbase simplifies alignment when
the powerbase is mounted on a tube, and provides stability.

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Curtis enAble® 40 Manual, Rev. E
Mounting the 1741 Handcontrol
Brass inserts in the user handcontrol allow it to be securely mounted and re-
moved/reinstalled many times. The handcontrol is designed to fit both tube
and plate mounting systems.
Fig. 3 Mounting
dimensions, Curtis 1741
user handcontrol.
Dimensions in millimeters (and inches)
2 — INSTALLATION & WIRING

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Curtis enAble® 40 Manual, Rev. E
Mounting the 1742 Attendant Control
Like the handcontrol, the attendant control has brass inserts that allow it to be
securely mounted and removed/reinstalled many times. The field replaceable
cable can be rotated to either of two positions, fore and aft.
Fig. 4 Mounting
dimensions, Curtis 1742
attendant control.
Dimensions in millimeters (and inches)
2 — INSTALLATION & WIRING

8 Curtis enAble® 40 Manual, Rev. E
Fig. 5 Basic wiring diagram, Curtis 1740 powerbase.
2 — INSTALLATION & WIRING
POWERBASE WIRING
Wiring for the 1740 powerbase is shown in Figure 5. The connections to the
14-pin connector are optional, depending on the level of functionality desired.
For use with the simplest handcontrol (the basic drive-only version), no logic
connections are required; for use with the full featured handcontrol (drive with
lights and seat actuators), all the connections shown in Figure 5 are required.
Additional features can be added to the system by wiring additional components
to the Multi-Function pins (4–7); see Figure 6.
The motor and battery connector housings have been specifically designed
for the enAble 40 system and must be purchased directly from your Curtis
dealer or sales representative. The electrical connectors are standard AMP parts.
Curtis also provides a kit with all the parts required to connect the high power
wiring to the powerbase. See Appendix D for part numbers.
14-pin logic connector
The recommended mating connector housing is 14-pin Molex Mini-Fit Junior,
p/n 39-01-2145. The pins for the connector should be Molex H.C.S. Plus, p/n
45750-3xxx, which are suitable for 16 AWG wire. Consult Molex specifications
for housing material and pin plating options. The pin-out is as follows:
Pin 1 Seat Motor 1+ Pin 8 Seat Motor 1-
Pin 2 Seat Motor 2+ Pin 9 Seat Motor 2-
Pin 3 B+ Pin 10 Running Lights -
Pin 4 B- Pin 11 Front Right Turn -
Pin 5 Multi-Function Input 1 Pin 12 Front Left Turn -
Pin 6 Multi-Function Input 2 Pin 13 Rear Right Turn -
Pin 7 Multi-Function Input 3 Pin 14 Rear Left Turn -
BATT M2
M1 +–
4
1 1
8
M2M1
Actuator 1
Actuator 2
Rear L Turn
Rear R Turn
Front L Turn
Front R Turn
Running Lights

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Curtis enAble® 40 Manual, Rev. E
2 — INSTALLATION & WIRING
Fig. 6 Wiring for the
Multi-Function inputs.
Molex High Current Contacts must be used for onboard charging
through this connector. Allowable current is 8 amps continuous.

10 Curtis enAble® 40 Manual, Rev. E
1741
HANDCONTROL
1740 POWERBASE
1742
ATTENDANT
CONTROL
1740 POWERBASE
4
1
5
2
3
Pin 1 B+
Pin 2 B-
Pin 3 Inhibit (active to ground/B-)
Pin 4 TXD
Pin 5 RXD
2 — INSTALLATION & WIRING
CONNECTING THE CONTROL MODULES
The communications cable on the 1741 user handcontrol and on the 1742
attendant control each terminate in a plug that fits into the powerbase’s 6-pin
connector. The attendant control’s cable includes a Y-junction into which the
user handcontrol’s cable connects, as shown in Figure 7.
5-pin charger/programmer port
The user handcontrol has a 5-pin port that accommodates a battery charger and
a programmer (although not at the same time). The charger plug’s three pins
fit into sockets 1, 2, and 3. The programmer plug’s two pins fit into sockets 4
and 5. Both plugs are designed to snap securely into the port.
Allowable current for a charger in this port is 8 amps continuous.
The inhibit pin (pin 3) halts all chair travel during charging. Additionally,
it can prevent specific actuator movements.
Fig. 7 Connecting the
control modules to the
powerbase.
(view looking
into the port)

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Curtis enAble® 40 Manual, Rev. E
3 USER HANDCONTROL
(1741)
The enAble® 40 handcontrol is designed to be user-friendly. The keypad buttons
are responsive and clearly marked. The LCD display is crisp and clear, with
intuitive icons and backlighting to enhance daytime and nighttime readability.
The communication cable is thin, flexible, and field replaceable.
The handcontrol is the main user interface to the control system. All user
commands come from the handcontrol’s keypad and joystick. The handcontrol
is also the information center of the system. All faults, errors, limits, and status
(operational characteristics) are displayed on its LCD display.
JOYSTICK
Moving the joystick straight forward and straight backward proportionately
controls the travel speed of the chair. Neutral (center position) always requests
no movement. Two deadbands, one around neutral and one at the full throw
(against the gate), provide a zone at each extreme where small movements—caused
by tremors, bumps, etc.—do not cause changes in vehicle speed.
Moving the joystick right and left (side to side) proportionately controls
the turning radius and turn rate of the vehicle.
Quickly reversing the joystick engages the Quick Stop feature.
KEYPADS
Four versions of the handcontrol are available: Drive Only, Drive with Lights,
Drive with Actuators, and Drive with Actuators and Lights.
Four keypad layouts correspond to the four versions:
Drive Only (4 buttons):
■ on/off, ■ horn, ■ speed up, ■ speed down.
Drive + Lights (8 buttons):
■ on/off, ■ horn, ■ speed up, ■ speed down, ■ L turn, ■ R turn, ■ headlights, ■ hazard lights.
Drive + Actuators (6 buttons):
■ on/off, ■ horn, ■ speed up, ■ speed down, ■ seat mode 1, ■ seat mode 2.
Drive + Actuators + Lights (8 buttons):
■ on/off, ■ horn, ■ speed up, ■ speed down, ■ L turn, ■ R turn, ■ headlights, ■ mode.
The functions of the various buttons are described in the following pages.
3 — USER HANDCONTROL

12 Curtis enAble® 40 Manual, Rev. E
Drive Only (4-button keypad)
The Drive Only keypad has four buttons: On/Off, Horn, Speed Up, and Speed
Down. These four basic buttons are standard on all the keypad versions.
On/Off Button
The Power On/Off button is located at the top of the keypad, above the display.
This button can also be used to lock the chair; see Handcontrol menu, page 24.
Pressing the power button while the chair is being driven engages the Emer-
gency Stop feature.
Horn Button
Pressing the Horn button sounds the horn. The horn is generally used to alert
nearby pedestrians to the oncoming chair. Beyond this basic function, the
horn can be programmed to provide several other functions: a back-up alarm,
audible feedback for button presses, and an error code beep (see Sound &
Display menu, page 27).
Speed Down and Speed Up Buttons
The Speed Down and Speed Up buttons are used to select the speed mode.
Pressing the Speed Down button selects the next lower speed mode each time
it is pressed, while pressing the Speed Up button selects the next higher speed
mode. The speed modes function like incremental positions on a variable speed
pot.
Fig. 8a Keypad for basic
Drive Only handcontrol;
these buttons are standard
on all the keypads.
3 — USER HANDCONTROL

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Curtis enAble® 40 Manual, Rev. E
Fig. 8b Keypad for the
Drive
+ Lights handcontrol.
Drive with Lights (8-button keypad)
This keypad’s eight buttons are the standard four (On/Off, Horn, Speed Up,
Speed Down) plus a Running Lights button, two buttons for the turn indica-
tors (left and right), and a Hazard Lights button.
Running Lights Button
Pressing the Running Lights button turns on the headlamps and any other
running lights on the chair. Pressing the button again turns them off. When
the lights are on, the running lights icon in the LCD is illuminated.
Turn Indicator Buttons
The Left and Right Turn Indicator buttons activate the corresponding turn
indicators. Pressing the turn indicator button again will turn the indicator off.
Also, note that pressing the opposite turn indicator button will cancel the first
indicator and activate the new one.
The turn indicator icons in the LCD flash in synchronicity with the
actual turn indicator lights.
Hazard Lights Button
The Hazard Lights button activates the hazard lights: i.e., flashing left and
right turn signals, front and rear. They will continue to flash even if the system
is powered down. Pressing the button again turns them off.
3 — USER HANDCONTROL

14 Curtis enAble® 40 Manual, Rev. E
Drive with Actuators (6-button keypad)
This keypad’s six buttons are the standard four (On/Off, Horn, Speed Up,
Speed Down) plus two buttons to activate the two actuator modes. The mode
buttons show one dot (for Mode 1) and two dots (for Mode 2).
Actuator Mode Buttons
With this handcontrol, there’s a button for each mode: Actuator Mode 1 and
Actuator Mode 2. The joystick must be in neutral before pressing an actuator
mode button. Pressing both Mode buttons simultaneously causes both actuators
to be active (assuming Simultaneous Mode is programmed On). If Actuator
Mode 1 is programmed Off (=0), either button will select Actuator Mode 2.
The fill-in portions of the LCD’s chair icon illuminate to indicate the active
actuator(s). In this example, Actuator Mode 1 is the seatback, Actuator Mode 2 is
the seat, and Simultaneous Mode is programmed On. See Seat menu, page 28.
Fig. 8c Keypad for
the Drive
+ Actuators
handcontrol.
3 — USER HANDCONTROL
MODE 1
BUTTON ( )
PRESSED
MODE 2
BUTTON ( )
PRESSED
BOTH
MODE BUTTONS
PRESSED
MODE 1
BUTTON ( )
PRESSED
MODE 2
BUTTON ( )
PRESSED
MODE 1 AND MODE 2
BUTTONS ( + )
PRESSED
Once in actuator mode via one of the mode buttons, repeatedly moving the
joystick to the right will cycle through the available actuator options. To exit
actuator mode, either move the joystick to the left or press the button corre-
sponding to the active mode again.