Class1 CAT 105216 User Manual

105216

VERNIER THROTTLE SYSTEM

for

Caterpillar

Electronic

Engines

Class1

607 NW 27 Ave.

Ocala, FL 34475

Ph: [phone]

Fax: [phone]

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Overview

Throttle Interface Control Module

System Overview

Class1

The
as the Felsted Electronic Vernier II Control) and other potentiometer controls to be used with electroni­cally controlled engines. This unit will work with electronically controlled Caterpillar Engines (C10,
C12, 3176, 3406, 3116B and 3126B) using a Pulse Width Modulated (PWM) Signal.

The interface converts a linear voltage input (potentiometer) into a PWM signal to control the engine.
True variable speed control is attained and the unit will maintain a selected engine RPM irrespective of
the engine load within it’s horsepower and torque capabilities. The interface can be used to govern
engine speed for various applications including PTO driven generators and pumps. There is an inter­nal fast idle function that can be activated with a remote fast idle input (12 VDC)

Included in the package The throttle control is available alone or as a package shipped with the
following components.

Vernier Throttle Interface is designed to allow industry standard vernier style controls (such

Interface module
Vernier control
User manual
Mating Connector and wiring

Operation

Variab le Throttle Control When the interface has power provided by the interlock circuit, variable

engine control is available to the operator using the vernier control. If the vernier control is open more
than 50% when power is applied to the interface, the interface will maintain the engine at idle RPM until
the throttle is closed and then re-opened. This feature prevents sudden unexpected increases in
engine speed when the unit is initially activated.

High Idle Control An input is available to bring the engine speed to a pre-determined engine RPM
(High Idle) from a remotely mounted switch or load management device. This speed is set by an
internal potentiometer.

Installation

Control Module The interface module requires minimal space

watertight and may be mounted in any location that is not subject to extreme temperature or vibration.

Wiring The interface package comes with cables and leads to make the following connections:

Vernier Control
Power and Ground
Engine Control Signal
High Idle connection

(5” x 6” x1.5”). The module is

Refer to the diagrams in the manual for specific wiring requirements.

Refer to the engine manufacturer’s Electronic Application & Installation Guides for detailed information
on engine electrical interfacing.

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Interlocks

Class1 provides a variety of engine controls that are used in a broad range
of applications, therefore it is impossible for Class1 to determine the suitabil­ity of a particular control for any specific application. The flexibility of our
products allows them to be used in a limitless number of custom applications.
Class1 can advise you of the features that are available on a given product
so that you can determine what product will meet your needs. We believe
that the Original Equipment Manufacturer’s (OEM) engineering departments
should be qualified experts in their product field and are the authorities on
product application and safety. Since our products are typically used in safety
critical applications, the OEM must undertake appropriate testing to prevent
injury to the end user.

W ARNING

!

NOTE: The interlock schemes shown in this manual are examples only and may not be suit­able for specific applications. The throttle interface is active whenever power is applied.

IT IS THE PURCHASER’S RESPONSIBILITY TO DETERMINE
THE SUIT ABILITY OF ANY PRODUCT FOR AN INTENDED
APPLICA TION, AND TO INSURE THA T IT IS INST ALLED
AND GU ARDED IN ACCORDANCE WITH ALL APPLICABLE
FEDERAL, ST A TE, LOCAL AND NFP A SAFETY AND HEAL TH
REGULA TIONS, CODES AND ST AND ARDS.

Special Programming The ECM must be programmed for remote throttle operation and there

are several considerations including vehicle speed and max RPM that need to be configured.

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