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Hobbywing platinum 120A v4 ESC cutting off at full power

Old 12-25-2023, 07:45 PM
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gt_jumper
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Question Hobbywing platinum 120A v4 ESC cutting off at full power

Im new to electric planes, and was hoping someone might shed some light on a few bugs in my setup
My throttle response is docile and not snappy like i see in videos, and at full throttle the motor resets for a split second.
I have the following setup
*pilot RC 67" Laser
*4200mah 6s 70c pack
*Hobbywing platinum 120A V4 ESC
*disconnected BEC, running a separate RX pack
*Dualsky GA2000.4
*pilot RC 18x10 electric wood prop

Any ideas how to fix the slow throttle and the full throttle power cut?
TIA

Old 12-31-2023, 07:24 AM
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ron_van_sommeren
 
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More info is needed for debugging:
Current at WOT (wide open throttle)
Same for RPM and battery voltage drop
Motor velocity konstant Kv (expressed in rpm/volt, it has a massive effect, cubed, on current and power drawn)

Note that Kv says nothing about max.continuous power, the motor in your toothbrush and the the motors in a 1:1 train can have same Kv.

With the above info you can try
www.rcgroups.com/electric-power-systems-13

Prettig weekend Ron
• Without a watt-meter you're in the dark ... until something starts to glow •
E-flight calculatorswatt-metersdiy motor tips&tricksCumulus MFC

Last edited by ron_van_sommeren; 12-31-2023 at 07:29 AM.
Old 01-01-2024, 02:39 PM
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gt_jumper
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Originally Posted by ron_van_sommeren
More info is needed for debugging:
Current at WOT (wide open throttle)
Same for RPM and battery voltage drop
Motor velocity konstant Kv (expressed in rpm/volt, it has a massive effect, cubed, on current and power drawn)

Note that Kv says nothing about max.continuous power, the motor in your toothbrush and the the motors in a 1:1 train can have same Kv.

With the above info you can try
www.rcgroups.com/electric-power-systems-13

Prettig weekend Ron
Without a watt-meter you're in the dark ... until something starts to glow
E-flight calculators watt-meters diy motor tips&tricks Cumulus MFC
Hi mate, the GA2000.4 is a 400KV unit. I didnt put a wattmeter on it but i was betting on it being higher that 2400watt. The ESC was sent back, I tried programming it for my purpose using the optional programmer box and it did the opposite when back in the model. Then it wouldnt even read the ESC when i tried to reprogram it. The whole power train is being replaced with a Tmotor AM670 combo. I will be staying well away from Hobbywing.

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