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9. SETPOINT CONTROL (Continued...)
This powerful feature allows:
- The activation of
up to 8 wires for switching relays,
solenoids, lamps.
- The “cutting” of
fuel
- The “cutting” of
the ignition
- The activation of
an “engine” light according to fault codes.
There are 16 functions, each function
performs a specific task.
Each function can specify the following
options, but some functions may not need all
options.
- ENABLE: It enables the evaluation of the
function, and results in a TRUE/FALSE
Performance.
- WIRE: A wire (output) can be specified.
If one is specified, then the TRUE
evaluation result in the specified wire
being switched ON, otherwise OFF. A zero
results in no wire activation.
- FUEL CUT: Once enabled, the fuel will be
“cut” if TRUE. The details as how the fuel
is actually “cut” is specified elsewhere.
- IGN CUT: The ignition is “cut” when the
function is true.
- SETPOINT:This is the set point variable
for the comparison to the engine inputs.
- HI/LOW: If HI is specified, then the
function is TRUE when the input is higher
than the set point.
- AND: This option allows the “ANDING” of
this function with ONE other Function.
- OR: This option allows the “ORING” of
this function with ONE other function.
- FUNCTION: It specifies the other
function with which this function should be
combined. The functions are numbered 0-16.
Here is a list of all
functions, with an indication of the installed
options:
| |
Fuel |
Ign |
Wire |
Setp |
Hi
Low |
And
OR |
fff |
| RPM #1 |
x |
x |
x |
RPM |
x |
x |
x |
| RPM #2 |
x |
x |
x |
RPM |
x |
x |
x |
| RPM #3 |
x |
x |
x |
RPM |
x |
x |
x |
| ENGINE TEMP. |
x |
x |
x |
Temp |
x |
x |
x |
| AIR TEMP. |
x |
x |
x |
Temp |
x |
x |
x |
| THROTTLE |
x |
x |
x |
% |
x |
x |
x |
| MAP |
x |
x |
x |
AMP |
x |
x |
x |
| SP#1 |
x |
x |
x |
Volts |
x |
x |
x |
| BOOST CTRL. |
- |
- |
x |
- |
- |
- |
- |
| SP #2 |
- |
- |
x |
Volts |
- |
- |
- |
| SP #3 |
- |
- |
x |
Volts |
- |
- |
- |
| IDLE 2 WIRE |
- |
- |
x |
RPM |
- |
- |
- |
| IDLE 3 WIRE |
- |
- |
x |
none |
- |
- |
- |
| FUEL PUMP |
- |
- |
x |
- |
- |
- |
- |
| REV COUNTER |
- |
- |
x |
- |
- |
- |
- |
| FAULT LIGHT |
- |
- |
x |
- |
- |
- |
- |
Examples:
- Put a lamp on at
6000 RPM or higher. We choose RPM #1, set
HI/LOW = High, RPM=6000, specify a WIRE.
- Switch a CAM
(relay) above 4000 RPM when full throttle.
We choose RPM #1, set HI/LOW=High, RPM=4000,
AND set, F=5 (Throttle) Set throttle
function: 90%, HI
- Put the FAN (relay)
ON when Engine temperature >90C or when full
throttle. Engine temp function: EN, Hi, 90,
OR, 5, WIRE Throttle function: EN, HI, 90%
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Copyright © 2006 Digital Data Systems (Pty) Ltd.
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