User Manual

e:\manuals\throttles\LDSBBT.p65

Throttles

The basic input for most engines is a variable 0-5 VDC signal at the remote throttle input of the

ECM.

This input has various naming conventions and is manufacturer dependent.

DDC Variable Speed Gover nor (VSG)

CAT PT O Throttle P osition (Multifunction Input #3)

CAT HEUI Accelerator Input (Remote Accelerator Position Sensor)

Cummins Remote Throttle P edal P osition Input

Navistar Remote Sensor Output

All of these will be referred to as “Remote Throttle Inputs” except in the individual engine

sections. With the exception of DDEC engines, all remote throttle applications must be pro-

grammed into the ECM. This can be performed using the appropriate engine softw are.

The remote throttle must be turned on in order to use it. This is a digital input for most engines

and should the point at which safety interlocking is performed.

DDC Switch from 525 to 510

CAT K999GN PT O ON/OFF s witch (MFI#1)

Cummins Remote Accelerator Switch (Remote Throttle On/OFF s witch)

Navistar 97CC Variable Enable

All engines except CAT provide a 5 VDC signal and a ground to be used with a remote throttle.

Installation consists of connecting the 5 VDC supply to terminal C on the throttle (Red Wire),

Signal Ground to ter minal A (Black Wire) and the remote throttle input to ter minal B (Green

Wire).

+5VDC Output Terminal C on the Vernier (RED)

DDC 916 circuit

CAT NA

Cummins Remote Throttle +5VDC (VSensor B)

Navistar 97DD Reference Voltage

Ground Terminal A on the Vernier (BLACK)

DDC 952 Sensor Return

CAT NA (993-BR Input Sensor Common #2)

Cummins Remote Throttle Return

Navistar 97WA Signal Retur n

97DF Switch Voltage

Signal Terminal B on the Vernier (GREEN)

DDC 510 Variable Speed Gover nor 0-5 VDC

CAT G845-PU Accelerator Input (Input #8) 10%-90% PWM

Cummins Remote Throttle P edal Position Input 0.25-4.2 VDC

Navistar 99F Remote Sensor Output 0.25-4.2 VDC