SR100A Speed Controller
V2.0
Dear customer,
Congratulations on the purchase of your new Phoenixtech SR Series Brushless ESC. This
latest series of controllers is unique in that it is equipped with a robust internal switching
Battery Eliminator Circuit (BEC) that allows the use of up to 6 lithium polymer cells in
series without the need for an external BEC. This internal BEC delivers 5.2 volts to your
receiver and servos and is capable of delivering a continuous 3 Amps of current, 4 Amps
peak.
Please read and pay careful attention to the following instructions before you start
to work with your motor and controller. These instructions contain important
programming information that can keep you from ruining your motor, batteries,
and ESC. Model aircraft can cause serious injury and destruction of property. This
is not a toy!
Your SR Series controller is equipped with a ferrite ring “choke” to minimize
interference. Depending on your radio system, you may or may not need this
device. It is easily removed by unwrapping the wire from around the ring. Always
range check your flight system on new aircraft with the motor running before
flying.
Wire Connections:
Motor Connections - The speed controller can be connected to the motor by soldering the
3 wires directly or with high quality connectors. Always use new connectors, which
should be soldered carefully to the cables and insulated with a heat shrink tube.
Battery connections – Solder the connectors of your choice on to the red and black
battery wires. The red wire corresponds to battery (+) and the black wire to battery (-).
Reversing the battery connections will destroy the ESC. The maximum length of the
battery pack wires should be 6 inches.
Receiver connection – Plug the “JR” connector into the receiver throttle channel.
Installing the Controller:
Install the controller in the model so that it is free from vibration and shock, using Velcro
or double sided foam tape. Make sure there is sufficient cooling for the controller by
ducting air through cooling holes from outside airflow. Failure to do this could cause
controller shutdown or damage. Mount the BEC switch securely.
Transmitter set up:
Check that throttle end point settings are +/-100%.
For Futaba transmitters, reverse the throttle channel.
Normal start up:
Switch the transmitter on and pull the throttle stick down to idle position.
Connect battery pack to the controller
Turn receiver switched “On” (BEC switch on).
You will hear one tone for Brake on or two tones for Brake off.
The position of full throttle will be calibrated automatically.
You motor now is ready to run.
SAFETY WARNING:
zAlways connect the motor battery pack just before flight and disconnect it
immediately after landing. The battery will be drained if left connected.
zOnce the motor battery pack is connected, handle the model with extreme care!
