T-34 Brushless problem
01-16-2009 | 08:41 PM
#1
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From: Ingalls, IN
T-34 Brushless problem
I ordered the T-34 with brushless upgrade and it went together well, no thanks to terrible instructions, but looks rather good for $99. The Ailerons,Rudder, Elevator work fine but the motor just turns slowly and very jumpy. The motor seams to not take commands from my transmitter and just violently shakes and turns. When I start it up I get two beeps with the second beep being of a higher tone and then the motor just turns randomly. Any ideas John? Thanks, Dan.
PS. Fast shipping is appreciated and although the plane isn't quite working yet, it seams exactly what I had in mind. PLEASE HELP ME GET THIS BIRD IN THE AIR!!!
PS. Fast shipping is appreciated and although the plane isn't quite working yet, it seams exactly what I had in mind. PLEASE HELP ME GET THIS BIRD IN THE AIR!!!
01-17-2009 | 12:02 AM
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From: Poolesville, MD
RE: T-34 Brushless problem
It sounds like one of two possibilities...
- One: And the most likely... one of the three wires to the brushless motor from the ESC has become disconnected.
Check to see that all three are plugged in.
- TWO: You may be turning on the plane with the transmitter on, but in the wrong throttle position. This prevents the ESC from learning the stick movement range of the throttle, causing the problem you are seeing... OR... the programming of the ESC is currently wrong for your motor.
I would look to the wires first though...
- One: And the most likely... one of the three wires to the brushless motor from the ESC has become disconnected.
Check to see that all three are plugged in.
- TWO: You may be turning on the plane with the transmitter on, but in the wrong throttle position. This prevents the ESC from learning the stick movement range of the throttle, causing the problem you are seeing... OR... the programming of the ESC is currently wrong for your motor.
I would look to the wires first though...
01-17-2009 | 11:38 AM
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From: Ingalls, IN
RE: T-34 Brushless problem
Neither of those solutions worked. I tried throttle at 0 , 1/4 , 1/2 , 3/4 , and full. I also checked the connections and all were very good. I am using a JR XP6102 computer radio with a JR R600 Rx that I am not very familiar with. Are there settings in the computer radio that could be affecting this action?
01-17-2009 | 01:45 PM
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From: Poolesville, MD
RE: T-34 Brushless problem
Normally when the ESC is first turned on, it expects to see the throttle at one position, then as you move it down to full idle, it "learns" the throttle range and arms the ESC.
If the ESC is not able to read the throttle range, moving the stick can result in a limited low range which in turn results in what you are seeing.
You may need to be sure that your TX is set up for maximum throttle "throws" or range too.
-
If the ESC's timing is not set up properly for the motor or for the wrong cell count, you will also experience what you are seeing....
-
If there is a broken or shorted winding on the motor, you will also get the same result.
You could check each of the three connectors from the motor with a meter to see if this is the case.
-
Of course if the battery is not putting out the proper voltage the ESC could be cutting out power to the motor too.
PM John here with all of this.
If the ESC is not able to read the throttle range, moving the stick can result in a limited low range which in turn results in what you are seeing.
You may need to be sure that your TX is set up for maximum throttle "throws" or range too.
-
If the ESC's timing is not set up properly for the motor or for the wrong cell count, you will also experience what you are seeing....
-
If there is a broken or shorted winding on the motor, you will also get the same result.
You could check each of the three connectors from the motor with a meter to see if this is the case.
-
Of course if the battery is not putting out the proper voltage the ESC could be cutting out power to the motor too.
PM John here with all of this.
