detroit diesel electronic fire commander 23519655

#DETROIT DIESEL ELECTRONIC FIRE COMMANDER 23519655 MANUAL#

I have tested the I/Os, pressure transducer, and wire harness, and I have all the signals that I need to allow it to go into pressure except the signal returning from the DDEC III ECU after the mode button is pressed. The old fire commander that it replaced also had problems switching modes, but the INC and DEC buttons were the only buttons that worked, so we figured the mode button had gone bad. This unit was replaced about 6 months ago and has had problems from day one. This is on a 2001 Spartan chassis with Smeal Body. The problem I am having is it will not go into pressure mode. The maximum number of engine ratings and pressure ranges is three.I am working on a Detroit Diesel Fire commander. A pressure range can be associated with each The pressure ranges are linked to the engine ratings. This feature requires both anĮDM and an Auxiliary Information Module (AIM). J1587/J1708 Data Link by the Electronic Display Module (EDM). Will be open circuited which will either close the vent or open the air inlet.ĭDEC will respond to a proprietary immediate engine shut down message sent over the SAE Once the air pressure has dropped to a lower programmable limit, the digital output This output may be used to either open an air compressor vent or close When the pressure reaches a programmable limit above the pressure set point the DDEC digital Opening the air compressor load switch input deactivates the air compressor control Releasing the switch sets the compressor controls to the lower setting.Ĭlosing (grounding) the air compressor load switch input activates the air compressor control Switch in the decrease position, will decrease the set point pressure at a rate of two increments per Momentarily toggling and releasing the Decrease Switch decreases set point pressure by aĬonfigured air compressor pressure increment (4% default) of the pressure range. The compressor controls to the higher setting.Īll information subject to change without notice. Increase the set point pressure at a rate of two increments per second. Holding the switch in the increase position (grounding the input), will Input) increases set point pressure by a configured air compressor increment (4% default) of Momentarily toggling and releasing the Increase Switch (grounding the “Resume/Accel On”

The initial pressure set point is saved between ignition cycles. Set with DDDL, Vehicle Electronic Programming System (VEPS), or DRS (refer to section 5.1.3) The minimum and maximum pressure setting for each of the horsepower curves is Table 5-1 Engine Operation with Air Compressor ControlsĮach horsepower rating has an associated pressure range. Once the air pressure hasĭropped to a lower programmable limit, the digital output will be open circuited which will either close Output may be used to either open an air compressor vent or close the air inlet. Reaches a programmable limit above the pressure set point the DDEC digital output will be activated. † DDEC will open and close the loading valve as a function of pressure with hysteresis. * The engine will continue to run at PTO maximum speed until the outlet pressure matches the sensor The air compressor solenoid digital output isĬurrent outlet pressure is above the pressure setĮngine speed decreases as required down to Pressure in the system continues to increase and a The engine response to various pressure conditions is listed in Table 5-1.Ĭurrent outlet pressure is below the pressure setĮngine speed increases as required up to PTO The Air Compressor Pressure Sensor provides a Pressure versus the desired output pressure. Engine speed is governed based on the actual air compressor outlet The ECU will activate the Air Compressor Governor Controls when the input 'Air Compressor The desired operating pressure may be varied by the operator, within limits The ECU monitors the air outlet pressure while varying the engine speed and operating a 09/05) 5-17SA821 0509 Copyright © 2005 DETROIT DIESEL CORPORATIONĪir Compressor Control is an optional DDEC feature that allows DDEC to regulate engine speedĪnd Load/Unload a valve in order to maintain a requested compressor outlet air pressure for 5-179Īll information subject to change without notice. 5-117ĥ.18 MANAGEMENT INFORMATION PRODUCTS. 5-95ĥ.14 IDLE SHUTDOWN TIMER AND VEHICLE POWER SHUTDOWN. DDC- DDEC v Application&Instalation ManualĭDEC V APPLICATION AND INSTALLATION MANUALĥ.1 AIR COMPRESSOR CONTROL. 5-179 All information subject to change without notice. 5-117 5.18 MANAGEMENT INFORMATION PRODUCTS. 5-95 5.14 IDLE SHUTDOWN TIMER AND VEHICLE POWER SHUTDOWN.

#DETROIT DIESEL ELECTRONIC FIRE COMMANDER 23519655 MANUAL#

DDC- DDEC v Application&Instalation Manual 1/228 DDEC V APPLICATION AND INSTALLATION MANUAL 5 DDEC FEATURES Section.

Detroit diesel electronic fire commander 23519655