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09-10-2006 01:49 PM  14 years ago
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Irish886

rrApprentice

coventry RI

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GV1 STSW mode
Sorry this is long. I have two raptor 50's and have the same JR649 9Ch PCM RX on both and a FUtaba 9253 in one machine(replaced a JR DS811) as the Throttle servo and a 9252 in the other. I had the 9253 machine first ans set everything up fine accept I had to reverse the throttle switch in my radio to be reverse so it would be correct in the GV1. Now I have the exact same set up on the other machine but using the 9252(I wanted the throttle to be the same in both memory positions) and the STSW mode is reversed. When I put the throttle stick to the low side in normal mode it is ON and when in the full throttle mode it is OFF. So to make it work correct I have ot put the throttle in the radio back to Norm position for that memory position. I don't want to have the throttle oposite from one memory position to the other. If I ever make a mistake and forget to change memory positions from one machine to the other in the radio and start it up it will be at full throttle in the low position. I know that the 9253 is a gyro servo but Futaba said it would be fine. I wanted a faster servo on hte Throttle so it would not lag the pitch throttle. Could the different servo's cause this?? They are both Futaba so I figured it would be the same.

Irish
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09-10-2006 01:57 PM  14 years ago
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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wrong, Sir
If I ever make a mistake and forget to change memory positions from one machine to the other in the radio and start it up it will be at full throttle in the low position.
the GV-1 will be ARMED, but will NOT have the throttle at WFO, as you won't have meet the 80% of RPM parameter to engagement.

Worst case is the gv-1 will dis-engage at full stick position, and will NOT dis-engage at the bottom. Do you have an additional channel that you can use for gov on/off switched??

Another alternative is to reverse the throttle arm coming off the servo, i.e. instead of pushrod coming from the bottom, re-route it to come from the top???

James
GOOD guy list-39, BAD guy list-0
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09-10-2006 09:34 PM  14 years ago
Irish886

rrApprentice

coventry RI

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I thought of that
Thanks fro the response It was late last night when I was doing this and agter thinking about it I came up with changing the link arm on them so that they match the radio setting.
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09-11-2006 01:24 AM  14 years ago
Irish886

rrApprentice

coventry RI

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FYI Gyro servo Vs Reg Servo
Ok with the FUT9253 as a throttle servo plugged into the GV1 and using a JR9303 the signal is opposite the FUT9252. What I mean is the STSW mode on the GV1 with the throttle stick all the way back is ON with the 9252 and the REV SW on the radio to Normal plus it puts the engine to full throttle. With the exact same set up but with the 9253 the STSW is OFF and the throttle is off. There is no way I can have the same set up on the radio for both memory positions unless I change one of the servos. So it looks like I will be getting another 9252 and have a spare Gyro servo.

AGRAV8 the throttle is full open if I forget and select the wrong memory location. I do have a master on off using another channel and it will override the STSW and shut off the Gov. The thing that I want to have is the throttle act the same in both the setups. Right now to have the Gov work right I have to have the Rev switch in Rev for the 9252 and in normal for the 9253 and if I get them mixed up it will be at full throttle with the stick in back position.

Irish
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09-11-2006 03:37 AM  14 years ago
JasonF

rrApprentice

Northern VA

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Bypass the GV1 on both machines. Connect the throttle directly to the receiver. Now see if you can get both throttles to work properly the way you want. Once you have done this, reconnect the GV1 on the machine you were satisfied with. If it's still good, now connect the offending GV1 and make its settings the same as the other one.

GV1 doesnt change your throttle setup or direction, it just works in conjunction with it.

This assumes that 9253 and 9252 rotate the same direction for a given command, can anyone confirm this?

Jason
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09-11-2006 12:23 PM  14 years ago
Irish886

rrApprentice

coventry RI

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STSW
Jason
Part of what I sis in troubleshooting was to take the 9253 I have for the Gyro on the machine I was having trouble with and connected it to the GV1 as the throttle and it worked the same as the other machine. So there is something different in the Gyro Servo. They have to be turning opposite of the 9252 for this to happen. So no matter what I do I have to have one of the machines in REV Thro. I will take the 9253 out and put back the slower servo till I get another 9252. For the flying I do it will not be that much of a problem. Thanks for the input.

Irish
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09-11-2006 12:50 PM  14 years ago
Peefor

rrVeteran

Norfolk UK

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Irish
Is there a possibility that you have overlooked a 'reverse' setting somewhere in your radio setup?
Futaba servos 9252/9253/9254 all rotate in the same direction for a given stick input. As far as I know JR servos rotate in the opposite direction for the same stick input.
9253's work perfectly as throttle servos......at least with Futaba Tx's
Pete
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09-11-2006 01:34 PM  14 years ago
Irish886

rrApprentice

coventry RI

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PEEFOR
I copied my original set up from my first Raptor to my second one and I went through all the settings. All I know now is if I put the 9253 on the throttle in both helis they work the same and if you put any other Servo in there they are opposite. When it first happened I was hoping that the GV1 would let me switch the ON/OFF with the Data setting but it wont it either is INH or ON I believe. I will look at the rotation again when I get home and see if the 9253 and 9254 turn the same way. I don't believe they do or I would not have to change the RE SW setting. Maybe it is because I am using JR radio and RX and the Futaba servo?

Irish
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11-26-2006 07:25 AM  14 years ago
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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well, had it happen to me...
and I figured it out. HOORAY !

set the reverse on the TX to make the servo go in the correct direction. Thats not so bad.... BUT, now the STSW is backwards, right??

SO, FIX IT !

Go to the screen that you teach it idle, full, and stop positions. Do THAT, and it then teaches the GV-1 that low stick is where STSW sould be off.

How about them apples??

James
GOOD guy list-39, BAD guy list-0
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