Class1 ANALOG - 120478 User Manual
FORM-ENG-0018 REV A 06-02-03
ISO 9001 CERTIFIED
607 NW 27th Ave
Phone: (352) 629-5020 or 800-533-3569
Ocala, FL 34475
Fax: (352)-629-2902
TECHNICAL PRODUCT DATASHEET
Electronic Throttle
(Analog version)
P/N 119971
FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
PRODUCT GROUP
PRODUCT
TECHNICAL DATA SHEET
THROTTLE CONTROL
Twister Electronic Throttle (Analog version)
P/N 119971 REV 1.20
PAGE
DATE 10/1/2010
BY AMS
1 OF 16
1.
REVISION LOG ..................................................................................................................................................................................... 2
2. PART NUMBERS .................................................................................................................................................................................. 3
2.1. SYSTEM PART NUMBERS .................................................................................................................................................................. 3
3. OVERVIEW ............................................................................................................................................................................................ 4
3.1. PRODUCT DESCRIPTION ................................................................................................................................................................... 4
3.2. THROTTLE READY LED INDICATOR .................................................................................................................................................... 5
3.3. ACTIVE LED INDICATOR ................................................................................................................................................................... 5
3.4. CONTROL KNOB ............................................................................................................................................................................... 5
3.5. IDLE BUTTON.................................................................................................................................................................................... 5
4. CONFIGURATION ................................................................................................................................................................................. 6
4.1. ENTERING PASSWORDS .................................................................................................................................................................... 6
4.2. INTERLOCK POLARITY ....................................................................................................................................................................... 6
4.2.1. Positive polarity (default) .......................................................................................................................................................... 7
4.2.2. Ground polarity ......................................................................................................................................................................... 7
4.3. KNOB ROTATION .............................................................................................................................................................................. 7
4.3.1. Clockwise rotation increases RPM (default) ............................................................................................................................. 7
4.3.2. Counter-clockwise rotation increases RPM .............................................................................................................................. 7
4.4. INITIAL DEADBAND CLICKS ................................................................................................................................................................ 8
4.5.
LOAD DEFAULTS ............................................................................................................................................................................... 8
4.6. ENGINE RPM RANGE CONFIGURATION .............................................................................................................................................. 8
4.6.1. Idle RPM configuration ............................................................................................................................................................. 9
4.6.2. Maximum RPM configuration ................................................................................................................................................... 9
4.7.
OUTPUT RAMP RATE ......................................................................................................................................................................... 9
5. OPERATION ........................................................................................................................................................................................ 10
5.1. INITIALIZATION ............................................................................................................................................................................... 10
5.2. INTERLOCKING (ENABLING THE TWISTER) ........................................................................................................................................ 10
5.3. CONTROLLING ENGINE SPEED ......................................................................................................................................................... 11
5.3.1. Returning the engine speed to idle ......................................................................................................................................... 12
6. MOUNTING & INSTALLATION........................................................................................................................................................... 13
6.1. PANEL CUTOUT DIMENSIONS ........................................................................................................................................................... 13
6.2. TWISTER SIDE-VIEW DIMENSIONS .................................................................................................................................................... 13
6.3. MAINTENANCE ............................................................................................................................................................................... 14
7. WIRING ................................................................................................................................................................................................ 14
7.1. TWISTER CONNECTOR .................................................................................................................................................................... 14
7.2. TWISTER WIRING ............................................................................................................................................................................ 14
8. TECHNICAL DETAILS ........................................................................................................................................................................ 15
9. REFERENCES ..................................................................................................................................................................................... 16
9.1. LIST OF FIGURES ............................................................................................................................................................................ 16
9.2. LIST OF TABLES .............................................................................................................................................................................. 16
9.3. LIST OF PASSWORDS ...................................................................................................................................................................... 16
Manual P/N 120478
FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
1. Revision Log
Rev Date Changes
1.00 11/16/2009 Initial revision
1.10 9/7/2010 Clarified password entry.
1.20 10/1/2010 Added passwords for “slow” output mode
PAGE
PRODUCT GROUP
PRODUCT
TECHNICAL DATA SHEET
THROTTLE CONTROL
Twister Electronic Throttle (Analog version)
P/N 119971 REV 1.20
DATE 10/1/2010
BY AMS
Product specifications in this manual are subject to change without notice.
2 OF 16
Manual P/N 120478
FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
PRODUCT GROUP
PRODUCT
2. Part numbers
2.1. System part numbers
Twister Electronic Throttle (analog) system kit TWIST-A
TECHNICAL DATA SHEET
THROTTLE CONTROL
Twister Electronic Throttle (Analog version)
P/N 119971 REV 1.20
PAGE
DATE 10/1/2010
BY AMS
3 OF 16
Kit includes
Twister Electronic Throttle (analog) QTY-1 119971
Twister main system harness QTY-1 120430
Knob rotation direction label set QTY-1 120462
Documentation (available from Class 1’s website - www.class1.com)
Twister Electronic Throttle Manual (this manual) 120478
Twister Quick Manual 120319
Manual P/N 120478
FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
PRODUCT GROUP
PRODUCT
3. Overview
3.1. Product description
The Twister Electronic Throttle (p/n 119971) controls engine speed using a variable analog voltage connected to the
engine ECM for remote throttle applications. The Twister’s analog voltage range is 0.235 volts to 4.448 volts and the
minimum (idle) and maximum voltages can be configured between the standard range for specific engine
manufacturer requirements (refer to section 4.6).
The Twister utilizes L
READY LED is on the left-side of the control knob and the blue ACTIVE LED is on the right-side of the control knob.
The Twister has a control knob and an idle button for the operator to control engine speed. The control knob allows
manipulation of the engine speed within the configured (and engine allowable) RPM range. The idle button returns
the engine speed to the configured idle RPM.
TECHNICAL DATA SHEET
THROTTLE CONTROL
Twister Electronic Throttle (Analog version)
P/N 119971 REV 1.20
PAGE
DATE 10/1/2010
BY AMS
4 OF 16
ight Emitting Diodes (LED) to convey status information to the operator. The green THROTTLE
Figure 1. Twister controls and indicators.
THROTTLE READY LED………………… section 3.2
ACTIVE LED………………………………. section 3.3
Control knob……………………………….. section 3.4
Idle button………………………………….. section 3.5
Manual P/N 120478
FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
3.2. Throttle ready LED indicator
The green THROTTLE READY LED indicator shows the status of the Twister interlock input (pin 3) and analog signal
diagnostic information.
FAST FLASH
DOUBLE BLINK NOT PERMITTED
3.3. Active LED indicator
The blue ACTIVE LED indicator shows the status of the Twister control.
PRODUCT GROUP
PRODUCT
Twister Electronic Throttle (Analog version)
LED state Throttle control Description
ON PERMITTED Twister interlock input (pin 3) is active.
OFF NOT PERMITTED Twister interlock input (pin 3) is NOT active.
(10 Hz)
NOT PERMITTED
LED state Throttle control Description
ON ACTIVE The twister is in control of engine RPM.
OFF NOT ACTIVE The Twister is not controlling the engine RPM (engine at idle).
FLASHING AT RPM LIMIT
TECHNICAL DATA SHEET
THROTTLE CONTROL
Table 1. Throttle ready LED states.
P/N 119971 REV 1.20
Analog signal error (voltage too low).
Verify analog +5 VDC reference and signal line voltage.
Analog signal error (voltage too high).
Verify analog ground reference and signal line voltage.
The Twister’s control knob is being rotated while the analog output
signal voltage is already at the configured limit (minimum or
maximum).
PAGE
DATE 10/1/2010
BY AMS
5 OF 16
Table 2. Active LED states.
3.4. Control knob
The control knob is the operator’s interface for RPM control. The control knob is rotated to change the engine speed
(RPM). The control knob can be configured to increase engine speed with clockwise or counter-clockwise rotation
(section 4.3).
3.5. Idle button
The idle button is the operator’s interface to return the engine’s speed to its idle RPM. Press and hold the idle button
for a half-second to ramp the engine speed to idle and release active engine control from the Twister. The Twister
ramps the output signal down at a rate of 0.9 volts per second.
Manual P/N 120478
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