Copyright © 2003-2007 Eagle Tree Systems, LLC
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After the sensor is glued and completely dry, remove the small spacer and rotate the drive train or propeller to ensure complete
freedom of movement. Also make sure that the sensor won’t vibrate and come in contact with the magnets during operation. If this
happens, the sensor will be destroyed, and the eLogger could be damaged.
Once these steps are complete, plug the Futaba style connector on the sensor into the eLogger as shown in figure 1. Note that a
standard Futaba style servo extension cable can be used to lengthen the RPM sensor wire if needed.
Using Existing RPM Sensors
Several of our customers have been able to use existing RPM sensors, such as governors or turbine sensors, with our products. The
following steps must be followed:
1)
Determine the “pinout” of the existing sensor. Compatible sensors will have Power, Ground, and Signal connections. The
eLogger’s RPM pinout, from left to right, is: Power (black wire), Ground (red wire), Signal (white wire).
2)
Devise a “Y” cable to connect your existing sensor to it’\s connection, and also to the eLogger’s RPM connection. NOTE:
Power for the sensor should come only from the connection the sensor is normally plugged into. So, only Gound and Signal
wires should be routed from the existing sensor to the eLogger. The power wire of the Y cable between the sensor and the
eLogger should be cut before connecting it to the eLogger. This is necessary to avoid connecting the power of the existing
sensor connection to the eLogger’s power connection.
3)
Thoroughly test the system to make sure the sensor still works with whatever it was originally connected to, after Y’ing to the
eLogger.
Monitoring your Model’s Throttle Position with the eLogger
Connecting the Throttle Servo Y-Cable to
your Throttle, and to the eLogger
IMPORTANT: Make sure you connect the
battery pack to the eLogger only AFTER
connecting the throttle Y cable to the eLogger
(and all other connections).
The eLogger logs
servo positions by measuring the pulses coming from
your receiver to the throttle servo, via the optional Y
cable. The Y Cable has 3 connections. The
“Futaba” male plug (at the “base of the Y”) connects
to the eLogger as shown in Figure. The universal
male and female plugs of the Y cable connect to your
receiver’s throttle channel, and to your throttle servo,
respectively. See Figure 2 for connections of the Y
cable to your Receiver and Servo.
Note that when the Y cable is connected to
your receiver, there is a common ground connection produced between your receiver and your battery pack,
which is also connected to the eLogger. This will bypass any optical or other isolation that might be built into the
ground connections of your ESC.
We are aware of no issues with connecting a wire between battery ground and
receiver ground in these cases, but proceed with caution (at your own risk) as there is the unlikely possibility that your
hardware may be damaged by such a connection, and make sure you do an antenna down range check after making this
change.
Installing and Using the Windows™ Application
Installing the Windows Application
The supplied Windows application is compatible with USB equipped PCs running Windows 7, Vista, XP, Windows 98SE,
Millennium, or Win 2K. The application is not compatible with Windows 98 Original Edition (Gold), or NT 4, even if the PC has
USB support.
