Chapter 16 digital outputs & pwm outputs, 1 description – Haltech E6K User Manual
Page 95
89
CHAPTER 16
DIGITAL OUTPUTS & PWM OUTPUTS
16.1 Description
The E6K possesses up to two special purpose digital output channels (depending on whether
or not the ECU is operated in Advanced Modes), each of which may be programmed to
perform a certain function. Each output channel is a pull-to-ground style signal suitable for
switching solenoids, relays or low-power dashboard lamps. The E6K also possesses 4
dedicated PWM outputs that are available all the time, irrespective of engine configuration.
Each PWM output is a 12V square waveform that is modulated in both frequency and duty
cycle.
Each channel employs a 4.0A peak / 1A hold current driver. This is suitable for driving most
relays, solenoids, and other low power devices. Do not connect any device which requires
more than 1 amp continuous current directly to the ECU - it will not operate properly. If you
are switching high currents, use a suitable relay, either mechanical or solid state, and control
the operation of the relay with the ECU.
A number of output functions exist within the E6K ECU. You may select any function to be
executed on any output channel, but there are restrictions on how many times a function can
be selected across all four PWM channels and the two Digital Out channels, eg: a maximum
of two wastegate channels may be selected to control a twin turbo engine configuration.
Following is a list of available functions to choose from:
Output Description
Digital Out 1–2
PWM 1 – 4
Max #
Turbo Wastegate
NO
•
2
Bypass Air Control (BAC)
NO
•
1
Dual Intake Valve
•
•
Unrestricted
Torque Convertor Control
•
•
1
Thermofan
•
•
Unrestricted
Intercooler Fan
•
•
Unrestricted
Shift Light
•
•
Unrestricted
Aux Fuel Pump
•
•
Unrestricted
Stall Saver
•
•
1
Staging Signal
•
•
Unrestricted
Turbo Timer
•
•
1
NOS Switch
•
•
1
Anti-Lag Switch
•
•
1
Ignition Bypass
NO
NO
Restricted
Tacho Output
NO
NO
Restricted
Ignition Toggle
NO
NO
Restricted
Note : In some Advanced mode applications, one or two of the Digital Outputs are not
available. Torque Converter Clutch Control cannot be used if a Home Trigger is being used in
Advanced Mode.