Detroit Diesel DDEC VI Application And Installation page 349

Once the PTO set speed is established, the Resume/Accel Switch can be used to increment the set
speed at a programmable rate up to the maximum PTO speed (Max PTO Spd Resume Accel Sw).
Releasing the Resume/Accel Switch will set the engine speed at the current operating speed.
The Set/Coast Switch will decrement the set speed at a programmable rate, down to the minimum
PTO speed (Min PTO Spd Set Coast Sw). Releasing the Set/Coast Switch will set the engine
speed at the current operating speed.
Cab PTO speed is disabled for any of the following:
□ Turning the Cruise Master Switch off
□ Vehicle speed is greater than "Max Road Speed in PTO Mode" (programmable – default
10 km/h)
□ VSS fault
□ Park Brake is off (if configured)
□ Park Brake or Service Brake Applied (PTO Dropout Serv Brk Prk Brk)
□ Clutch Pedal is pressed (PTO Dropout or Clutch Enabled)
□ Cruise Switch Fault
□ Optimized Idle is Active
If PTO Throttle Override is enabled (PTO Throttle Override Enabled), the throttle pedal can
override the PTO engine speed up to the maximum engine speed for Throttle Override (Throttle
Override Max Engine Spd). The previous PTO set speed will become active again, if it is greater
than the engine speed equivalent to the throttle pedal percentage.
DDEC will exit the Cab PTO Mode for Automated/Automatic Transmissions for the following:
□ Shift in Progress message received over J1939
□ Valid TSC1 command received from the transmission
□ Transmission in gear (selected gear or current gear)
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
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