Installation Guide

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SportBEC installation guide

November 2007

Introduction:

SportBEC is a switch-mode BEC specifically designed for sport planes, glow

conversions, helicopters and more. It is designed for use with flight batteries from three

to eight lithium cells, or up to 21 Nickel cells. The generous 3.5A current rating ensures a

large safety margin when powering multiple servos. The product incorporates a throttle

pass-through feature, which allows you to simply plug it in and go, without having to

modify your ESC. SportBEC is designed for use with ESCs that are already lithium-

aware and have the proper cutoff voltage.

Summary of content (8 pages)

PAGE 1
SportBEC installation guide November 2007 Introduction: SportBEC is a switch-mode BEC specifically designed for sport planes, glow conversions, helicopters and more. It is designed for use with flight batteries from three to eight lithium cells, or up to 21 Nickel cells. The generous 3.5A current rating ensures a large safety margin when powering multiple servos. The product incorporates a throttle pass-through feature, which allows you to simply plug it in and go, without having to modify your ESC.
PAGE 2
Installation Instructions: Step 1: Connect the brown and red wires labeled +BATT and –BATT to the positive and negative input wires of your ESC. It is usually most convenient to attach the wires at the battery connector as shown. When you do this, you are putting SportBEC’s power wires in parallel with your ESC’s power wires. It is good practice to seal the battery connections with heatshrink tubing.
PAGE 3
Step 2: Plug the radio connector of your ESC into the port on the SportBEC in the proper polarity. Depending on your brand of ESC, the signal wire that connects to the pin marked with the yellow-circled ‘S’ may be yellow, white or orange. By plugging the ESC into the SportBEC, the BEC function of the ESC is disabled and no further modification of the ESC is necessary. This will not affect the ESC’s low voltage cutoff or any other ESC function because SportBEC passes the throttle signal straight through.
PAGE 4
Step 3: Plug the radio connector of the SportBEC into the throttle port of your receiver (usually channel 3). Step 4: Secure the SportBEC to the airframe with Velcro, double sided tape or rubber bands. Verify ESC and servo functionality before your first flight. For best results, ensure that the SportBEC is installed at least 2-3 inches away from your receiver.
PAGE 5
Updated instructions for opto-isolated speed controls, or speed controls without BECs: The installation procedure for SportBEC is slightly different if you have an opto-isolated speed control, or if your speed control does not have a built in BEC. This design style is common with Jeti ESCs, and high voltage Castle ESCs. If you are having trouble identifying whether your speed control has a BEC or not please contact Dimension Engineering and we can help.
PAGE 6
Step 2: Plug your speed control’s pigtail into the throttle port of your receiver as normal.
PAGE 7
Step 3: Plug SportBEC’s pigtail into the battery port of your receiver, or any other empty channel. Optional step 4: If you want, you can put a small piece of tape to cover SportBEC’s exposed pins but this is purely optional. Step 5: Secure the SportBEC to the airframe with Velcro, double sided tape or rubber bands. Verify ESC and servo functionality before your first flight. For best results, ensure that the SportBEC is installed at least 2-3 inches away from your receiver.
PAGE 8
Recommended setups: SportBEC is designed to supply up to 3.5 amps. Generally speaking, this is enough to handle the vast majority of servo setups, as long as you are not flying giant scale aircraft. The following are provided as preliminary guidelines. Servo Type 6g servos (HS-50, GWS Pico,etc.) 9g servos (HS-55, GWS naro, etc.