Lingenfelter L460135297 Lingenfelter LNC-TC1 Torque Cut Module RPM Limit v1.1 - Manual (Page 9)

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External module control operation (also see Table A on page 14):
If you have an external device (shifter controller, transmission controller etc.) that you want to have
control the torque cut, this can be done in two primary ways.
The first method would be if your external device can provide a 0-5 volt variable voltage output and
you still want the LNC-TC1 to control the duration of the torque cut. In this case you could send the
control signal to the purple wire, much like the load cell input signal. You would connect nothing to the
orange Input On wire and you would set the Kill Enable Offset Voltage to what ever voltage change
your external device could generate. Keep in mind the external device would have to supply 2.5 volts
for a no torque cut condition and then go above or below 2.5 volts to command a torque cut. In this
configuration you would be in Time Based Mode so the LNC-TC1 would ignore any torque cut request
that occurred within 0.050 seconds of a previous request.
If you want the external device to control when and for how long a torque cut occurs, then you would
connect the signal output from your device to the orange Input On wire and set the Kill Enable Offset
Voltage to position F (ALT) and the Kill Time to position F (OFF). In this mode when ever your device
provided a 12 volt signal to the orange wire, the LNC-TC1 would be in torque cut operation. The length
of the torque cut would be controlled by how ever long the voltage signal is applied to the orange wire.
Torque Cut Wiring for the LNC-TC1
The orange wire is a 12 volt input signal wire. It is used for controlling the operating modes and in
some modes to control the length of the torque cut.
The gray wire is a 5V output wire. This wire is used for data logging.
The red (5V) wire should be connected to the positive (+) voltage wire on the load cell.
The black (ground) wire on the LNC-TC1 must be connected to the negative (-) voltage wire on the
load cell.
The purple (signal) wire on the LNC-TC1 should be connected to the signal wire on the load cell.
RPM Limiting & 2-step/Launch Control Operation
The independent coil drive of the LNC-TC1 provides sequential ignition kill when RPM limiting is
active. The desired RPM limiting is set as shown on page 4 using the x1000 and x100 RPM increment
rotary dials. The activation for the Launch Control/2-Step function is controlled by the ground (green)
or +12 volt (yellow) activation wires.
If you are triggering off of the clutch switch, the 2-step will trigger each time you depress the clutch
pedal. If you do not want the 2-step to trigger when you engage the clutch pedal once you are moving
then you will need to install a momentary switch or use the Lingenfelter MPH activated switch. With
the MPH activated switch you can set at what MPH you want the 2-Step activation to be disabled.