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HomeAircraftHelicopterFlybarless Rotor Head SystemsBrain iKon › HobbyWing Platinum Pro and the Brain
08-26-2017 04:30 PM  11 months agoPost 1
gliesian

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Ocean City, NJ, USA

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Do I plug the THRO into CH1 or GOV, and why?

Thanks,
Robert

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08-26-2017 09:11 PM  11 months agoPost 2
JurassicJet

rrNovice

WI

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Throttle goes to channel 1 and the GOV goes to GOV on the Ikon. The Hobbywing ESC must be programmed to fixed wing mode, otherwise the two governors will fight each other.

Why does it need to be done this way? No clue. It's all PFM to me.

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08-27-2017 08:23 AM  11 months agoPost 3
rik

rrNovice

Italy

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Throttle output signal is on CH1 of Brain and go to ESC.
ESC RPM signal needed to have the feedback for the Brain Governor, go to GOV port of Brain (Gear ratios and pole count must be set in Brain software).

Note1: Hobbywing "OPTO" ESC have a different RPM output signal compared to the standard ESC with BEC that don't work correctly, and these "OPTO" versions don't work with ANY external governor brand (any flybarless governor brand or any dedicated governors brand) so if you have an "OPTO" version the only option is to use the internal ESC governor giving up the benefits of a proactive governor.

Note2: Hobbywing rebranded by Align, cannot updated to the telemetric firmware. If you have the Align rebranded version you can't have telemetric infos loggable by Brain2.

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08-27-2017 09:31 AM  11 months agoPost 4
Dawiev

rrApprentice

Middle East

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Use this with the "OPTO" ESC to Brain Gov port :
https://www.hobbywingdirect.com/pro...riant=219217336

This gives the correct RPM signal to use Brain governor.

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08-27-2017 10:14 AM  11 months agoPost 5
rik

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Italy

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Obviously unless you add in to the model a separate sensor to read RPM.
But this with his added cost, wires, weight and space needed.
The same is valid for the needed separate BEC.
These two things together vanish the price vantage over the non OPTO (with BEC) ESC versions.

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08-27-2017 11:54 AM  11 months agoPost 6
Dawiev

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Middle East

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$4 and 6g an issue ? See posted link for size specs.

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08-27-2017 05:18 PM  11 months agoPost 7
JurassicJet

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WI

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Throttle output signal is on CH1 of Brain and go to ESC.
ESC RPM signal needed to have the feedback for the Brain Governor, go to GOV port of Brain (Gear ratios and pole count must be set in Brain software).

Note1: Hobbywing "OPTO" ESC have a different RPM output signal compared to the standard ESC with BEC that don't work correctly, and these "OPTO" versions don't work with ANY external governor brand (any flybarless governor brand or any dedicated governors brand) so if you have an "OPTO" version the only option is to use the internal ESC governor giving up the benefits of a proactive governor.

Note2: Hobbywing rebranded by Align, cannot updated to the telemetric firmware. If you have the Align rebranded version you can't have telemetric infos loggable by Brain2.
Are you positive about this?

The reason that I ask is that I have my Hobbywing Platinum 130HV Opto ESC plugged into my Brain and the governor via the Brain/Ikon seems to work fine. The only anomaly that I noticed is that when you are in the Ikon governor panel, the readout of the RPM jumps around as far as the readout, but the motor runs fine at a consistent RPM. I have my RPM set at 1440 (scale 700 heli) and it is pretty much spot on from what I can tell.

I personally do not think that any other connections are required. In fact, I asked this question directly to a tech at either Heli Direct or James at Jeti USA (don't remember which one) and he specifically told me that no other connections nor add-ons are necessary. Plug and play. So, since it works for me and others have affirmed my setup, I question whether your advice is correct.

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08-30-2017 06:40 AM  11 months agoPost 8
rik

rrNovice

Italy

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You can see below the scope image that is the signal of RPM output of a Platinum OPTO V4 130A when a spool-up start (RPM raising from zero).

As you can see at the start the pulse amplitude is higher than 0-3.3V (that is the normal amplitude for a digital signal and in long term a so high voltage pulses can also damages the Brain input), but when RPM raise the minimum voltage level raise over to 1V. And raise more with higher RPM. This is a too high digital level so, the processor can not be able to recognize the switch from high to low level. Neither the "change rate".
With very low RPM (scale heli) maybe that it is possible that work. Problems start with high RPM.

Better to use a separate RPM sensor.

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08-30-2017 02:20 PM  11 months agoPost 9
JurassicJet

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WI

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Thank you for posting that rik. How fortuitous that you just posted this because last night I ordered an RPM sensor.

I thought that plugging the ESC into the Ikon would work the way I did it originally, but apparently not because I could not get the GOV to work from the Ikon.

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