Go Back  RCU Forums > Electric Aircraft Universe > Brushed/Brushless motors, speed controls, gear drives
Hobbywing platinum 120A v4 ESC cutting off at full power >

Hobbywing platinum 120A v4 ESC cutting off at full power

Community
Search
Notices
Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

Hobbywing platinum 120A v4 ESC cutting off at full power

Thread Tools
 
Search this Thread
 
Old 12-25-2023 | 07:45 PM
  #1  
gt_jumper's Avatar
Thread Starter
 
Joined: Feb 2005
Posts: 270
Likes: 0
Received 0 Likes on 0 Posts
From: townsvilleqld, AUSTRALIA
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
  #2  
ron_van_sommeren's Avatar
 
Joined: Sep 2002
Posts: 645
Likes: 0
Received 22 Likes on 17 Posts
From: Nijmegen / Nederland
Default

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
  #3  
gt_jumper's Avatar
Thread Starter
 
Joined: Feb 2005
Posts: 270
Likes: 0
Received 0 Likes on 0 Posts
From: townsvilleqld, AUSTRALIA
Default

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 calculatorswatt-metersdiy motor tips&tricksCumulus 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.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.