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DBW
The functions associated with operating the electronic throttle are only for testing
stationary engines (generators, test benches, engine dynometers). For safety
reasons, do not use the electronic throttle service on the road !!!!
In order to use the electronic throttle (DBW) you need an additional control unit. DBW Module
(driver) which controls the engine throttle based on the control signal from the EMU. The module
input is connected to one of the EMU outputs (injector, AUX, stepper). The electronic throttle is
equipped with two potentiometers that determine the current percentage of its opening. The
second potentiometer (POT INV) produces an inverse signal from the primary potentiometer (POT)
The sum of the two voltage signals will always remain 5V. If irregularities are detected the throttle
is automatically closed in transition to safe mode. This DBW safety function will be disabled if only
one potentiometer is connected.
The diagram shows how to connect the module DBW, EMU and the electronic throttle
Terminal
A
+12V after ignition fuse 7.5A!
B
Power ground
C
EMU ground
D
Input Signal (Connect to Injector, AUX or Stepper Motor)
E
Motor -
F
Motor +
ATTENTION !
DBW MODULE CONNECTORS DESCRIPTION
Description
Page 112
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