GREAT PLANES ElectriFly GPML0056 Instruction Manual

5-CHANNEL MINI FM RECEIVER 72MHZ
WITH 30A ELECTRONIC SPEED CONTROL
INSTRUCTION MANUAL FOR R/C AIRCRAFT USE
Congratulations on your purchase of the ElectriFly
5-Channel Mini FM Receiver with ESC! This single-
conversion receiver with built-in electronic speed
control has been updated to be compatible with
Futaba, Hitec, JR and Airtronics FM transmitters
and is a perfect choice for use in park flyer and smaller
electric R/C airplanes and gliders. As an FM (frequency
modulated) narrow-band system, it's far less vulnerable
to interference than AM receivers. While few receivers of
the same physical size and weight can match its in-
flight range, the ElectriFly 5-Channel FM Rx exhibits
excellent interference rejection characteristics for clean,
trouble-free flights. With a maximum ground range of
890 feet, it is great for smaller aircraft, this receiver
is not well suited for large aircraft.
An extra step has been taken to help reduce the size
and weight of equipment on-board the aircraft, by
incorporating a 30Amp (max.) electronic speed control into
the receiver itself. With features that include "Safe Start" to
prevent accidental motor starts, BEC circuitry, low voltage
cut-off for maintaining radio control, thermal shutdown
and more, the ESC circuitry is more than just a novelty, it
is a convenient, intelligent and powerful addition to the
receiver. Please read this entire manual carefully and use
your radio system safely. Pay special attention to all
precautions and warnings to ensure the safest operation.

WARNINGS

• Do not fly simultaneously on a frequency that is
already being used in your area. Doing so could
create unwanted interference and cause a crash and
possibly bodily harm.
• Do not fly in the rain or at night. Water can permanently
damage many of the components in the radio system,
possibly causing loss of control and a crash.
• Only fly at licensed R/C flying fields. Fly at safe
distances away from other people, objects in the air,
buildings, electrical lines, or any other object which
could possibly impede safe flying. Failure to do so could
cause a crash and possibly bodily harm and physical
damage to other property.
• Never cut or shorten the antenna. Always extend the
Rx antenna to maximum length when flying. Failure
to do so could reduce the effective range of the radio
system, possibly resulting in a crash. Always test the
radio system before use. Failure to ensure proper
radio operation before flight could result in a crash.
• Do not store the radio system in extreme heat
(exceeding 104ºF) or cold (below -14ºF), in direct
sunlight, in high humidity, in high vibration
environments, or in dusty areas.
• Never use more than 10 volts DC for the main
battery pack.
• The ceramic capacitors must be properly installed on
the motor to prevent radio interference.
• Always disconnect the motor battery from the ESC
when not in use.
• Always switch on the transmitter before applying power
to the ESC.
• Use heat shrink to insulate any bare wires from the
motor battery to the ESC and from the ESC to the
motor to prevent a short circuit.
• Allow the ESC to cool before touching.
• Do not attempt to use anything except Futaba
™
single conversion FM receiver crystals.
• Do not attempt to use 72MHz low-band crystals with
receivers tuned to the 72MHz high-band and vice-versa.
MOUNTING THE
RECEIVER / SPEED CONTROL
Determine the best location for the Rx/ESC inside the
fuselage. The location should allow good airflow for
proper cooling and permit the motor wires to reach the
motor. It is highly recommended to put cooling air
intake holes in the front of the fuselage and exit holes
towards the aft end.
The best method to mount the Rx/ESC in the fuselage
is with hook and loop material. This allows the ESC to
be removed and repositioned easily. If the ESC will be
mounted on wood, first saturate the wood with thin CA
and allow to dry. This will provide a good surface for the
Velcro to adhere to. Cut a piece of Velcro (both hook and
loop) approximately 1/2" x 1". Remove the backing from
the hook (hard) material and attach it to the inside of
the fuselage. Clean the bottom of the ESC with rubbing
alcohol and attach the loop (soft) material.

INSTALL THE MOTOR CAPACITORS

.10µF CAPACITOR (104)
SOLDER TO SIDE
OF MOTOR
BRUSH TERMINAL
Motors generate radio noise which can interfere with
your receiver and cause problems. Your ESC includes
two 100µF (104) and one 47µF (473) non-polarized,
ceramic capacitors. These capacitors must be used at
all times and on every motor to help reduce the radio
noise generated by the motor and prevent possible
damage to the ESC.
1. Cut a piece of heat shrink tubing long enough to
cover one of the leads on both of the 100µF
capacitors, leaving approximately 1/4" of the lead
exposed at the bottom.
POSITIVE (+)
BRUSH TERMINAL
.047µF CAPACITOR (473)
SILVER BAND
SCHOTTKY DIODE
NEGATIVE (–)
brand
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