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Zoom › which one happened? motor or sc?
02-11-2006 06:30 PM  12 years agoPost 1
derf9h

rrNovice

TOLEDO, OHIO

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i was hovering around in my basement yesterday trying to configure my new 401 gyro, and i could barely get the thing to take off except at low stick input. i took it upstairs and realize my collective servo wasn't traveling all the way up or down and it was basically stuck in full postive pitch. i came to the conclusion thats why the heli wouldn't take off, too much load on the motor because of pitch. so i went to bed and woke up this morning with high hopes. i went downstairs, turned on my tx, turned on the switch for the speed control, let it arm, then pushed the arming button for the speed control and went to hit the up stick on the throttle and nothing happened with the motor. the collective was moving, all the servos work, but the motor is running?

how can i see if maybe i fried my motor by running full pitch on accident yesterday or do you think it was my speed control that got fried? how can i test these things?

here is my setup:

shogun v2
2200 lipo
electron 6 rx
futaba 7c tx
eflite maxx 25 speed control
stock 400 brushed motor
hs-56hb's all around
futaba 401 gyro
foam main blades

any ideas or suggestions would be great, thanks

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02-12-2006 01:27 AM  12 years agoPost 2
PacketStorm

rrApprentice

Atlanta, GA - USA

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Get a voltmeter and check the voltage between the two wires from the ESC to the motor - try DC then AC mode - DO NOT ACCIDENTLY PUT METER INTO AMPS MODE!

See what kind of voltage you see and report here - ramp it up to full throttle.

I'm guessing you aren't hearing the arming beeps and tones anymore right? What about the LED on the ESC - if it has one? Does the brushed setup give beeps and tones in the first place like a brushless does?

Let us know what you try and what you observe.

Edit: I just now realized you don't have a brushless setup...so I totally rewrote this post. I also realized my double answer to the other "double post."

You fly...you crash...it's life

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02-12-2006 01:39 AM  12 years agoPost 3
Rob_T

rrElite Veteran

..

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A brushed motor can be tested on any DC power source with the right sort of voltage and current capability. For speed 400s, I use a 4.8V receiver battery to give them a quick test. (I never use lipos while testing, I dont want to risk a faulty motor shorting out the lipo).

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