RE: Hitec 5955 problems  
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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> RE: Hitec 5955 problems
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RE: Hitec 5955 problems - 2/11/2005 9:46:18 PM   
Crash90



Posts: 2315
Joined: 10/5/2002
From: Cressona, PA, USA
Status: offline 		Mglavin. Are you saying is that the only problem with the 5955 and the programmer is that the points eg:center, and end may be slightly off when moving from the programmer to the Rx?
What about the problems that were reported in the beginning of this thread? Has that been tied to the programmer also or what?

< Message edited by Crash90 -- 2/11/2005 9:50:38 PM >

(in reply to Maudib)
       Post #: 76

RE: Hitec 5955 problems - 2/12/2005 12:33:05 AM   
mglavin



Posts: 5200
Joined: 11/29/2001
From: Elverta, CA, USA
Status: offline
quote:

ORIGINAL: jrjohn

Mike, If I put one of the 5955 servo's on the rudder of my 28% airplane and don't do any programing. (just radio subtrim) will I run into any of the troubles that guys are talking about. such as the guy that says one locked up at full deflection and caused a crash.


John

Were not aware of any ongoing or known problem with the viability of the new TG servos to date, less the programmed deviation offsets mentioned previously.

The safest bet I believe is to not program them. BUT so many users have been using them re-programmed to date without issue that I believe its plausible to assume they are functioning reliably as such, my experience is same, no problems.

In the past failures of the digitals have largely been contributed to the specific installation, specifically; power distribution, inadequate power under load and or poor quality and or dirty electrical contacts contributing to electrical losses. These are high power servos and require HD components and better than average battery power. Additionally many problems are linked to user set-up, specifically; improperly programmed TX's and or servos. These anomalies may cause binding allowing the servos to work against each other and or consume excessive power.

In some situations all appears well, yet when several servos are operating simultaneously, voltage degradation ensues and the servos lack adequate power, resisting flight loads they heat up and in some cases soft reboot (cycle to end-point and reinitialize) when the power falls below minimum requirements. Unfortunately this scenario is all too common.

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RCU Community Moderator
Hitec * Multiplex Field Representative

(in reply to jrjohn)
       Post #: 77

RE: Hitec 5955 problems - 2/12/2005 12:51:03 AM   
mglavin



Posts: 5200
Joined: 11/29/2001
From: Elverta, CA, USA
Status: offline
quote:

ORIGINAL: Crash90

Mglavin. Are you saying is that the only problem with the 5955 and the programmer is that the points eg:center, and end may be slightly off when moving from the programmer to the Rx?

What about the problems that were reported in the beginning of this thread? Has that been tied to the programmer also or what?


Crash

I haven't had issue with the jittering, except when coupled to an inadequate power source. I'm using the TG servos in 40% Edge now without any problems. Programmed and all. While a may sound like a broken with regard to utilizing HD quality components and adequate power sources and distribution, these problems are almost always traced to same. In many cases cycling the connectors has merit too.

You have to consider the worst case and that these super servos can momentarily consume better than three amps each! A gaggle of these monsters are power hungry and need to be appropriately fed.

_____________________________

Michael Glavin
RCU Community Moderator
Hitec * Multiplex Field Representative

(in reply to Crash90)
       Post #: 78

RE: Hitec 5955 problems - 2/12/2005 1:54:06 AM   
Crash90



Posts: 2315
Joined: 10/5/2002
From: Cressona, PA, USA
Status: offline 		Thanks. In your opinion then, to properly power say 6 5955 servos in a 35% plane. Assuming that all the connecters and extensions were properly applied. What would you recommend as a minimum power supply? I was thinking of using a single 2300mah lithium. Possibly unregulated. ( I know Hitec doesn't support this.)

(in reply to mglavin)
       Post #: 79

RE: Hitec 5955 problems - 2/12/2005 7:09:56 AM   
mglavin



Posts: 5200
Joined: 11/29/2001
From: Elverta, CA, USA
Status: offline
quote:

ORIGINAL: Crash90

Thanks. In your opinion then, to properly power say 6 5955 servos in a 35% plane. Assuming that all the connecters and extensions were properly applied. What would you recommend as a minimum power supply? I was thinking of using a single 2300mah lithium. Possibly unregulated. ( I know Hitec doesn't support this.)



Please describe your installation in detail, i.e., servo location, wyes if any and channel count anticipated and the like.

A single 2300mAh Lithium is NOT an adequate power source... At best this battery can provide around 4.6 Amps sustained and I actually doubt it will do that for very long. Maybe two 2300mAh.

I'm getting ready to dive into the reality of all these numbers. I recently purchased a programmable electronic load device, I'll use this device to simulate real time flight loads intermittent and sustained to determine the needs and actual battery capabilities. I also have a programmable electronic power supply, it s amazing what we can learn from this stuff.

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Michael Glavin
RCU Community Moderator
Hitec * Multiplex Field Representative

(in reply to Crash90)
       Post #: 80

RE: Hitec 5955 problems - 2/12/2005 7:17:58 AM   
RCadmin



Posts: 13181
Joined: 11/28/2001
From: Belle Mead, NJ, USA
Status: offline 		Members. In the direct support forums answers should be provided only by the company or its rep. I understand many of you are trying to simply help but please allow the company to field the questions. They are here and will do so and give official answers. If you do have followup questions in an existing thread you may certainly ask them and the company will respond "officially".

If for some reason you prefer to get answers from the members here as well as possibly the company or its rep(s) then simply ask in the regular radio forum where the general membership may respond freely. If a poster asks a question here in direct support it is indicating their intention they prefer to have only the company officially answer the question.

thanks everyone

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(in reply to mglavin)
       Post #: 81

RE: Hitec 5955 problems - 2/12/2005 1:29:27 PM   
Crash90



Posts: 2315
Joined: 10/5/2002
From: Cressona, PA, USA
Status: offline 		Just a 6 servo setup. 1 per aileron 1 per elev half 1 for the rudder and 1 for throttle. This setup would be going into a 2.6M composite.

Oh, and thanks. So you would recommend at least 2 2300mah.

(in reply to mglavin)
       Post #: 82

RE: Hitec 5955 problems - 2/13/2005 1:23:44 PM   
sillyness



Posts: 2282
Joined: 1/1/2002
From: Demorestville, ON, CANADA
Status: offline
quote:

I am about to receive the 5955 and i must say i am feeling a bit ancious about using it. I do not intened to use the programer on it which is from one what i can gather the key problem but what concerns me is that I have had two reports back from a freind regarding the 5995. In one case the servo failed and remain at about 7% this was after only a handfull of flights, the plane was landed saifly and everything was ok. On the second instance the servo failed and locked at full delection and so the only way to get the thing on the ground without too much damage was a flat spin. Luckily the only damage was to the undercarriage but the consequences could have been far worse. In both cases the bottom of the servo had burnt out or melted i am not sure.


Any feedback on this? I just ordered one. If these things are locking up again (like the 5945s) then I have a NIB 5955 for sale.

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(in reply to Crash90)
       Post #: 83

RE: Hitec 5955 problems - 2/14/2005 6:37:44 PM   
Brendan Lugo



Posts: 279
Joined: 11/11/2004
From: Poway, CA, USA
Status: offline 		The problems we have seen have been related to programming the servo (v 1.04) with the programmer which has v 1.03 software. This has created a problem where the center and end points set with the programmer seem to shift 3 degrees one direction. This has not affected the operation of the servo, just the ability to properly set the center and end points.


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Hitec RCD
Multiplex USA

(in reply to sillyness)
       Post #: 84

RE: Hitec 5955 problems - 2/17/2005 9:32:17 AM   
Kato


 

Posts: 90
Joined: 8/20/2002
From: Trondheim, NORWAY
Status: offline 		Brendan,

After programing; Will the center shift to one position that is fixed each time you move the stick and thats it, or will the center change each time you move the stick??

This is not clear.

Kato

(in reply to Brendan Lugo)
       Post #: 85

RE: Hitec 5955 problems - 2/17/2005 2:35:25 PM   
mglavin



Posts: 5200
Joined: 11/29/2001
From: Elverta, CA, USA
Status: offline 		Kato

While each servo may differ slightly, the offset deviation is consistent of each servo. It simply becomes the programmed center and end-point parameter. This becomes a "fixed position" at center and end-points.

_____________________________

Michael Glavin
RCU Community Moderator
Hitec * Multiplex Field Representative

(in reply to Kato)
       Post #: 86

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