|12-19-2009, 12:32 PM||#1|
I am: Steve S
Join Date: Feb 2009
Location: Red Deer
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Help Wanted For Trex E
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Can anyone tell me what method OTHER THAN USING THE FLIGHT LIPO to check thigs like Servo set up, Blade pitch, Blade Tracking ect.
What Voltage is safe to hook up to the ESC/BEC to run the REX 450 electrics. I am sick of charging a flight LiPo and using that to perform checks (what a waste)
My intent is to use a Power suply unit (110v Input - ?v Output)with deans connectors so I can run checks as long as I wish WITHOUT USING THE FLIGHT LIPO.
What is a safe input voltage?
Set up is:
- Align Trex 450 V2
- Hitec HS-65MG Metal Gear Servos
- Futaba 401 / 9257
- Spectrum AR6200 w/t additional receiver
- Stock ESC (RCE-BL35X 35A Brushless ESC)
Last edited by lemonsorbie; 12-19-2009 at 12:38 PM.
|12-19-2009, 12:44 PM||#2|
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I am: Gary L
Join Date: Aug 2008
Location: Tecumseh, Ontario
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Re: Help Wanted For Trex E
As with my 450 and 600, it may be difficult to access the receiver once everything is installed, but a much better way to do setups is to unplug the BEC from CH #3 and use a regular flight pack to power the radio system. This also has the advantage of preventing the rotor system from lighting off until you complete the flight control setup.
Most systems have a working range of 4.5-6V, (3-4 Alkaline or 4-5 NiCad or NiMH batteries). You can buy the battery holders at Radio Shack, (The Source) and if you do not have a connector, one from the LED Power or HD indicators from an old PC fit the pin spacing.
An even better method for testing and flight is to separate your ESC and BEC supply circuits by adding a stand-alone BEC, such as one from Castle Creations or Ultimate. You can select your output voltage.
On my 450 I run an Ultimate at 6V which speeds up the servos and adds torque. Just be sure that ALL your components can handle the voltage. In your case the Futaba 9257 servo will NOT handle anything over 4.5V, (the 9650 is rated for 6V) so if you opt to run the HS65's there, (they will handle it fine) you would now need a step-down regulator for the tail servo.
p.s. Most wall wart power supplies are maxed out at 4-500MAh. This will NOT be enough to cover your needs, which can come close to or exceed 3A.
Last edited by Cougar429; 12-19-2009 at 12:53 PM.
|12-19-2009, 02:13 PM||#3|
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I am: Chang P
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Re: Help Wanted For Trex E
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