Pegasus-35H
™
By
Castle Creations
™
Micro Digital Helicopter Motor Control
Pegasus-35H™
User Guide
Page 1 of 2
Rev 8-dated 02/18/02
This document, Pegasus-35H™ software, and Pegasus-35H™ PCB layout are all Copyright
1998-2000 by Patrick del Castillo and
Castle Creations
™
Warning!
High power motor systems can be very dangerous! High currents can
heat wires and batteries, causing fires and burning skin. Follow the wiring directions
carefully! Model helicopters equipped with high power motors can kill. Always fly at a
sanctioned field. Never fly over or near spectators. Even though this controller is
equipped with a safety arming program, you should still use caution when connecting the
i b
1.0
Features of the
Pegasus-35H™
:
•
Microprocessor controlled
•
Low Resistance (.0011 ohms)
•
High rate (2800 Hz) switching (PWM)
•
Up to 35 Amps continuous current (with proper air
flow)
•
Battery Eliminator Circuit (BEC) provides power
to receiver and servos - eliminates separate receiver
battery
•
Audible arming signal alerts when system is armed
•
Six to eight cells with three standard micro servos
and gyro
•
Six to eight cells with two high-torque micro servos
and gyro
•
Up to ten cells with two standard micro servos and
gyro
•
Eighteen cells MAX with BEC disabled.
•
Safe “power on” arming program ensures motor
will not accidentally turn on
•
Low torque “soft start” prevents damage to fragile
gearboxes
•
Auto shut down when signal is lost or radio
interference becomes severe
•
Rugged surface mount construction
2.0
Wiring Your
Pegasus-35H™
:
Tools required:
Wire cutters Wire strippers (optional)
Soldering Iron (25-40 watts - Do not use a soldering “gun”)
Parts required
:
Solder (rosin core “electronic” solder - do not use acid core “plumbers” solder)
Battery connector
2.1
Adding the Battery Connector
The battery connector is attached to the left side of the controller (looking down at the heat sink/label).
Cut the wires to the length you require on the battery side. Strip off of the wire insulation to expose just
enough wire to attach the battery connector. (Note: if you do not have a pair of wire strippers, you can
use a modeling knife to carefully cut through the insulation around the wire. Then the insulation should
easily pull off the wire.) Attach the battery connector to the wires ENSURING THAT THE POLARITY
(red wire to battery red wire, black wire to battery black wire) IS CORRECT, following the instructions
for the battery connector.
2.2
Attaching the Motor Leads
The motor is connected to the right side of the controller (looking down at the heat sink/label). Cut the
wires to the length you require on the motor side. Strip the wire insulation to expose just enough wire to
solder the wires to the motor terminals. (Note: If you do not have a pair of wire strippers, you can use a
modeling knife to carefully cut through the insulation around the wire. Then the insulation should easily
pull off the wire). There should be a ‘+’ symbol or a RED DOT on the end of your motor which
indicates which terminal must be connected to the RED wire. Connect the other terminal to the white
wire. A fuse (30-45 amps) may be connected inline in either the black or red power wire. A fuse is
recommended for the safest operation.
DO NOT PLACE A FUSE IN THE CIRCUIT BETWEEN
THE BATTERY AND SPEED CONTROL. YOU COULD LOSE CONTROL OF THE MODEL.
Align the wires carefully and solder to the motor terminals. Ensure that all connections (battery and
motor) are correctly polarized.
IMPORTANT NOTE:
YOU MUST BE SURE THAT ALL CONNECTIONS ARE CORRECT WHEN
CONNECTING THE SPEED CONTROL. Incorrectly connecting the speed control could cause
permanent damage to the controller.
Battery Connector Pegasus-35H
™
Fuse* Motor
Fig 1: System power wiring diagram * Suggested 30-45 Amp
2.3
Connecting the Receiver
Connect the receiver lead (the three color, twisted wires with a connector on the end) to the throttle
channel on your receiver (usually channel 3). Do not connect a battery to the receiver, as the Pegasus-
35H
™
will supply power to the receiver and servos through the receiver connector. If you are using
more than ten cells, you will need to use a separate receiver battery. See the section 4.0 (under the
heading BEC) for instructions on disabling the BEC to use a separate receiver battery.
ALWAYS PERFORM A RANGE CHECK BEFORE FLYING WITH ANY NEW SPEED
CONTROL! PERFORM YOUR RANGE CHECK AT FULL THROTTLE, HALF THROTTLE
AND NO THROTTLE.
Pegasus-35H
™
←
Batt Motor
→
