07-05-2012, 11:02 AM
Wingtipper,
I've had a similar thing happen with a Turnigy thrust 40A esc, the inbuilt BEC didn't have the herb to drive the servo's, it wasn't putting out anywhere near it's rated current and obviously faulty
Please note, that weather the motor is running or not shouldn't effect the ESC's innternal BEC.
The BEC doesn't provide any power for the motor. It only powers the servo's and the reciever. It's the reciever that provides the PWM signal to the ESC this is true but the amount of power needed for that signal is very small compaired to what's required to drive a servo.
Concider measureing the amount of current your servos are drawing too. You might have one servo that is drawing a lot of current and causing the ESC's BEC to over load. This is another possibility, but an easy enough one to diagnose with a multi-meter. Bring it over one afternoon and I can have a look at it if you like.
Good thing you noticed this before it went into the air !!
I've had a similar thing happen with a Turnigy thrust 40A esc, the inbuilt BEC didn't have the herb to drive the servo's, it wasn't putting out anywhere near it's rated current and obviously faulty
Please note, that weather the motor is running or not shouldn't effect the ESC's innternal BEC.
The BEC doesn't provide any power for the motor. It only powers the servo's and the reciever. It's the reciever that provides the PWM signal to the ESC this is true but the amount of power needed for that signal is very small compaired to what's required to drive a servo.
Concider measureing the amount of current your servos are drawing too. You might have one servo that is drawing a lot of current and causing the ESC's BEC to over load. This is another possibility, but an easy enough one to diagnose with a multi-meter. Bring it over one afternoon and I can have a look at it if you like.
Good thing you noticed this before it went into the air !!
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci