Programming Requirements & Flexibility; Dual Speed Axle; Operation; Installation - Detroit Diesel DDEC VI Application And Installation

5.5

DUAL SPEED AXLE

The Dual Speed Axle feature allows a digital input to be configured to switch between two
axle ratios for calculation of vehicle speed.
5.5.1

OPERATION

When the digital input is open the first axle ratio will be used. When the switch is grounded, the
second axle ratio will be used. The vehicle must be stopped before switching the axle ratios.
5.5.2

INSTALLATION

The Dual Speed Axle Switch is pin 1/1 on the CPC.
5.5.3 PROGRAMMING FLEXIBILITY & REQUIREMENTS
The digital input listed in Table 5-10 can be configured by VEPS or DRS.
Parameter
Parameter
Group
2nd Axle Speed Switch
13
13 1 01 DI Selection
Table 5-10 Dual Speed Axle Digital Input
Both axle ratios listed in Table 5-11 must also be programmed with VEPS, DRS or DDDL 7.0.
Parameter
Parameter
Group
8 Axle Ratio
Two Spd Axle
8
Second Axle Ratio
Table 5-11 Programming the Axle Ratios
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
Config
1 = Enable Dual Speed Axle
2 = Enable Transmission Retarder Input
3 = FUSO Auxiliary Brake Cut Switch
Description
Indicates the first axle ratio
of the vehicle.
Indicates the second axle
ratio of the vehicle.
Options
0 = Hardwired
1 = CCVS1
2 = CCVS2
3 = CCVS3
0 = Disable
Range
1.0 – 20.00
1.0 – 20.00
Default Access
VEPS,
0 = Hardwired
DRS
VEPS,
0 = Disable
DRS
Default
5.29
5.29
5-19