Hacker ESC Operation

[Griffo]

I recently purchased a second hand Hacker 40-O-Heli ESC for my Corona fixed pitch heli.

I am having problems with speed control. When I apply power the RPM's build up just enough to lift the heli off the ground but it is extremely difficult to maintain even RPM as the ESC seems to want to keep building speed. When I try to back off a little it just stops :eek: . Not good for a fixed pitch heli! I experienced varied throttle response on following attempts, one of which seemed to almost go full throttle with only a touch of throttle input.

I've been over the .pdf manaul on the Hacker website and I'm not sure exactly what the issue could be.

I'm using a JR x-3810 computer transmitter in Heli mode with the throttle curve set to Normal. I assume that since it is a fixed pitch heli the pitch curve does not apply.

One thing I did notice is that when I connect the RX/ESC battery I hear an initial "Beep beep" then after about 5 seconds I get another "5 beeps". This is with the TX throttle set to Zero.

I would really appreciate some help :confused:

[stall warning]

The beeps you hear appear to be the same as mine.

The "rpm's rising" description sounds like the slow spool up mode or possibly
it is in governor mode. I don't think you want to be in gov mode for
fixed pitch. The slow spool up should time out after a point.

Give the Hacker guy some time to respond to be sure.

Ron

[Griffo]

Thanks Ron, I'll wait for confirmation from Hacker before firing it up again :).

[Griffo]

Hmm I've sent an email to Hacker but still no response from reps.

I've had a bit of a play with the ESC and discovered that it was in fact in Governer mode (hence the intial two beeps). I've now changed this to Normal mode and will give it another shot later on. Hopefully the problem will be fixed :).

The ESC programmer box sure would make this a lot easier, and I notice there a many functions that can only be changed with the programmer. Do hacker have any suppliers or reps here in Australia?

[Paintfly]

Hi Griffo.

Hacker Germany will be closed for three weeks starting yesterday. Alot of Europe has shut down for what seems a weird time of the year to be off on holiday.

Hope this helps.
Paintfly