Futaba 6XA dual elevator servo mixing
05-26-2007, 08:20 AM
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Futaba 6XA dual elevator servo mixing
Hi all.
I am trying to use two digital servos for the elevators on my pattern airplan.
My transmiter is a PCM 6XA, and the receiver is a 148DP.
Since the system failes to operate both servos through a Y conector (which works fine with non-digitals) I wanted to use PMX1/2 to enslave ch5 to ch2.
I got encoraged by the manual suggesting such a mix as one usefull use for the PMX 1/2 functions:
"PMX1, PMX2 — Programmable Mixes 1 & 2
Your T6XAs/XHs system contains two separate programmable mixers (PMXI and PMX2) with unique capabilities. You may use mixing to correct unwanted tendencies of the aircraft during aerobatics. Each one of these mixers may be programmed to do things that are not built-in programs. This makes them useful for all sorts of different things.
The elevator dual-rate switch in its down position turns on the mixers (if they’ve been activated). The method to be used to program mixers is given for Mixer #1, but the other mixer may be programmed in an identical fashion.
You can use both PMXs to create a custom dual elevator function, where you use two servos for your elevator control, one for each side. Or you may also use the mixers for correcting unwanted flying tendencies, like automatically applying a bit of rudder with throttle to account for torque/P-factor effects, to a corrective elevator motion during knife-edge flight to"
The problems:
1. Ch5 switch remaines active, thus forcing ch5 servo according to the switch position, around which it tries to perform it's slave actions.
2. Mixer on/off ststus stayes depandent on the ELEV D/R switch
3. Trim works only on the master (ch2) servo and not on the slave (ch5) servo.
P.S.
System is operated on 6 VDC TX battery
Thanks in advance for your help
Yaron
I am trying to use two digital servos for the elevators on my pattern airplan.
My transmiter is a PCM 6XA, and the receiver is a 148DP.
Since the system failes to operate both servos through a Y conector (which works fine with non-digitals) I wanted to use PMX1/2 to enslave ch5 to ch2.
I got encoraged by the manual suggesting such a mix as one usefull use for the PMX 1/2 functions:
"PMX1, PMX2 — Programmable Mixes 1 & 2
Your T6XAs/XHs system contains two separate programmable mixers (PMXI and PMX2) with unique capabilities. You may use mixing to correct unwanted tendencies of the aircraft during aerobatics. Each one of these mixers may be programmed to do things that are not built-in programs. This makes them useful for all sorts of different things.
The elevator dual-rate switch in its down position turns on the mixers (if they’ve been activated). The method to be used to program mixers is given for Mixer #1, but the other mixer may be programmed in an identical fashion.
You can use both PMXs to create a custom dual elevator function, where you use two servos for your elevator control, one for each side. Or you may also use the mixers for correcting unwanted flying tendencies, like automatically applying a bit of rudder with throttle to account for torque/P-factor effects, to a corrective elevator motion during knife-edge flight to"
The problems:
1. Ch5 switch remaines active, thus forcing ch5 servo according to the switch position, around which it tries to perform it's slave actions.
2. Mixer on/off ststus stayes depandent on the ELEV D/R switch
3. Trim works only on the master (ch2) servo and not on the slave (ch5) servo.
P.S.
System is operated on 6 VDC TX battery
Thanks in advance for your help
Yaron
05-26-2007, 05:06 PM
#2
RE: Futaba 6XA dual elevator servo mixing
ORIGINAL: yaron_k
Hi all.
I am trying to use two digital servos for the elevators on my pattern airplan.
My transmiter is a PCM 6XA, and the receiver is a 148DP.
Since the system failes to operate both servos through a Y conector (which works fine with non-digitals) I wanted to use PMX1/2 to enslave ch5 to ch2.
I got encoraged by the manual suggesting such a mix as one usefull use for the PMX 1/2 functions:
"PMX1, PMX2 — Programmable Mixes 1 & 2
Your T6XAs/XHs system contains two separate programmable mixers (PMXI and PMX2) with unique capabilities. You may use mixing to correct unwanted tendencies of the aircraft during aerobatics. Each one of these mixers may be programmed to do things that are not built-in programs. This makes them useful for all sorts of different things.
The elevator dual-rate switch in its down position turns on the mixers (if they’ve been activated). The method to be used to program mixers is given for Mixer #1, but the other mixer may be programmed in an identical fashion.
You can use both PMXs to create a custom dual elevator function, where you use two servos for your elevator control, one for each side. Or you may also use the mixers for correcting unwanted flying tendencies, like automatically applying a bit of rudder with throttle to account for torque/P-factor effects, to a corrective elevator motion during knife-edge flight to"
The problems:
1. Ch5 switch remaines active, thus forcing ch5 servo according to the switch position, around which it tries to perform it's slave actions.
2. Mixer on/off ststus stayes depandent on the ELEV D/R switch
3. Trim works only on the master (ch2) servo and not on the slave (ch5) servo.
P.S.
System is operated on 6 VDC TX battery
Thanks in advance for your help
Yaron
Hi all.
I am trying to use two digital servos for the elevators on my pattern airplan.
My transmiter is a PCM 6XA, and the receiver is a 148DP.
Since the system failes to operate both servos through a Y conector (which works fine with non-digitals) I wanted to use PMX1/2 to enslave ch5 to ch2.
I got encoraged by the manual suggesting such a mix as one usefull use for the PMX 1/2 functions:
"PMX1, PMX2 — Programmable Mixes 1 & 2
Your T6XAs/XHs system contains two separate programmable mixers (PMXI and PMX2) with unique capabilities. You may use mixing to correct unwanted tendencies of the aircraft during aerobatics. Each one of these mixers may be programmed to do things that are not built-in programs. This makes them useful for all sorts of different things.
The elevator dual-rate switch in its down position turns on the mixers (if they’ve been activated). The method to be used to program mixers is given for Mixer #1, but the other mixer may be programmed in an identical fashion.
You can use both PMXs to create a custom dual elevator function, where you use two servos for your elevator control, one for each side. Or you may also use the mixers for correcting unwanted flying tendencies, like automatically applying a bit of rudder with throttle to account for torque/P-factor effects, to a corrective elevator motion during knife-edge flight to"
The problems:
1. Ch5 switch remaines active, thus forcing ch5 servo according to the switch position, around which it tries to perform it's slave actions.
2. Mixer on/off ststus stayes depandent on the ELEV D/R switch
3. Trim works only on the master (ch2) servo and not on the slave (ch5) servo.
P.S.
System is operated on 6 VDC TX battery
Thanks in advance for your help
Yaron
First, there is no reason the 2 elevator digital servos shouldn't work thru a Y-harness. If the non digitals work thru the Y-harness, the digitals should also.
Second, I don't believe there is a way in the 6X radios to have dual elev servos on separate channels and still maintain trim for the second elev servo. See this answer from Krysta http://www.rcuniverse.com/forum/m_5884705/tm.htm
Woodie
05-26-2007, 11:53 PM
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RE: Futaba 6XA dual elevator servo mixing
I do appreciate the answer.
In any way - is there a way to make the mix independent on switch position, and is there away to delete the functioning of the ch5 (gear ) switch?
Thanks
Yaron
In any way - is there a way to make the mix independent on switch position, and is there away to delete the functioning of the ch5 (gear ) switch?
Thanks
Yaron
06-20-2007, 07:09 AM
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RE: Futaba 6XA dual elevator servo mixing
found this servo reverser
#
This lightweight electronic servo reverser used to reverse one servo in dual servo applicators such as ailerons, flaps etc. Usually used in conjunction with a Y-Lead, PCB mounted pot for servo centering 4.8~6v usage.
#
This lightweight electronic servo reverser used to reverse one servo in dual servo applicators such as ailerons, flaps etc. Usually used in conjunction with a Y-Lead, PCB mounted pot for servo centering 4.8~6v usage.
06-20-2007, 07:26 AM
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06-20-2007, 03:37 PM
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RE: Futaba 6XA dual elevator servo mixing
You can use the Futaba Dual Servo Reverser. Just plug both elevator servos into it and reverse just one of them:
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
09-07-2007, 12:31 PM
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RE: Futaba 6XA dual elevator servo mixing
ORIGINAL: Bax
You can use the Futaba Dual Servo Reverser. Just plug both elevator servos into it and reverse just one of them:
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
You can use the Futaba Dual Servo Reverser. Just plug both elevator servos into it and reverse just one of them:
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
Can anyone help with that? Further to this, is there a combo of buttons to push to get the INH to show ON??
In the PMX1 menu, when I hit the data+ switch as instructed, it switches from INH to OFF. No how, no way can I get it to show ON. I'm running in PCM mode (not FM, although I can't get it to show ON in either mode.)
I need to run 2 & 5 as 2 separate elevator servos as previously asked.
Thanks.
09-07-2007, 01:13 PM
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RE: Futaba 6XA dual elevator servo mixing
Hi vorager_663rd,
You simply need to follow the steps in our FAQ on this subject for the 6XAS radio:
http://www.futaba-rc.com/faq/faq-6xsuper-q473.html
Sincerely,
Krysta
Product Development & Support Specialist
Futaba Service Center USA
You simply need to follow the steps in our FAQ on this subject for the 6XAS radio:
http://www.futaba-rc.com/faq/faq-6xsuper-q473.html
Sincerely,
Krysta
Product Development & Support Specialist
Futaba Service Center USA
ORIGINAL: voyager_663rd
Not being smart, but I don't want to have to buy another part. The manual says this mix can be done.
Can anyone help with that? Further to this, is there a combo of buttons to push to get the INH to show ON??
In the PMX1 menu, when I hit the data+ switch as instructed, it switches from INH to OFF. No how, no way can I get it to show ON. I'm running in PCM mode (not FM, although I can't get it to show ON in either mode.)
I need to run 2 & 5 as 2 separate elevator servos as previously asked.
Thanks.
ORIGINAL: Bax
You can use the Futaba Dual Servo Reverser. Just plug both elevator servos into it and reverse just one of them:
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
You can use the Futaba Dual Servo Reverser. Just plug both elevator servos into it and reverse just one of them:
FUTM4150 SR10 DUAL SERVO REVERSER
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
Can anyone help with that? Further to this, is there a combo of buttons to push to get the INH to show ON??
In the PMX1 menu, when I hit the data+ switch as instructed, it switches from INH to OFF. No how, no way can I get it to show ON. I'm running in PCM mode (not FM, although I can't get it to show ON in either mode.)
I need to run 2 & 5 as 2 separate elevator servos as previously asked.
Thanks.
09-07-2007, 01:19 PM
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RE: Futaba 6XA dual elevator servo mixing
Thanks very much!
And I see it's not recommended on futaba site. Best bet is to go with a reverser as Bax originally suggested.
And I see it's not recommended on futaba site. Best bet is to go with a reverser as Bax originally suggested.
