Follow-up "Hitech 5645mg not working with Y connector?? "
05-03-2005, 12:34 PM
#1
Follow-up "Hitech 5645mg not working with Y connector?? "
Hitec's response to the 5645 vs Y connector thread appears to indicate that v1.04 servos are having signal sthrength problems???
1) Is this problem only associated with y-connecting servos or will it also manifest itself with long extensions and/or large number of servos.
2) What is the relationship between Futaba PCM RXs and this problem? Why is this not a problem with other RXs? Is this another way of saying the
Futaba PCM RX puts out a much lower signal than ALL other RXs?
Please analyze my GP Christen Eagle setup for potential problems relative to current understandings -- this is an airplane I would rather sit in my hanger rather than take the chance of crashing due to radio or servo problems. Please be ultra conservative with your recommendations. I can easily upgrade to a larger battery if my setup appears to be lean on power -- I do check RX battery voltage after every flight at the field:
1) a single 2200 nimh 6volt battery on an MPI switch (DPDT heavy duty switch)
2) Futaba R129 9-channel PCM RX
3) (4) Hitec HS-5645 servos (servos purchased last summer), one for each airlon. Each servo has a 6" extension through the wing panel. Each servo also has an additional 12" extension to bring it into the fuselage where each set, left and right, are connected to 12" y-connectors. The y-connectors are connected directly to the RX, right on channel 1, left on channel 7.
4) (2) Hitec HS-5625 servos (older servos but purchased after programmer was upgraded to V1.03), one for each elevator half. Each servo has a 12" extension. Right elevator is connected to channel 2 on the RX, the left elevator is connected to channel 8 on the RX.
5) (1) Hitec HS-425 for throttle, connected with no extension to channel 3 on the RX.
6) (1) Hitec HS-81 for choke, with a 12" extension and connected to channel 6 on the RX.
7) (1) Hitec HS-5945 (v1.04) connected to the rudder. It has a 12" extension which is connected to channel 4 on the RX.
NOTEs:
1) The airlons servos' center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 1 and 7 are static at 120 and my subtrim is 0. I am using the Futaba 9C's AIL DIFF function.
2) The elevator servo's center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 2 and 8 are static at 115 and my subtrim is 0. I am using the Futaba 9C's AILEVATOR function with airlons set to 0%.
3) Since I'm still not sure real sure what I can or cannot do with a v1.04 servo, my rudder servo has never been connected to the programmer. Both the subtrim and endpoints are setup'd in the TX. Can I, with NO concern, reset and set the HS-5945, v1.04 center and endpoints with the v1.03 programmer. given that it is a single servo on a single control surface?
1) Is this problem only associated with y-connecting servos or will it also manifest itself with long extensions and/or large number of servos.
2) What is the relationship between Futaba PCM RXs and this problem? Why is this not a problem with other RXs? Is this another way of saying the
Futaba PCM RX puts out a much lower signal than ALL other RXs?
Please analyze my GP Christen Eagle setup for potential problems relative to current understandings -- this is an airplane I would rather sit in my hanger rather than take the chance of crashing due to radio or servo problems. Please be ultra conservative with your recommendations. I can easily upgrade to a larger battery if my setup appears to be lean on power -- I do check RX battery voltage after every flight at the field:
1) a single 2200 nimh 6volt battery on an MPI switch (DPDT heavy duty switch)
2) Futaba R129 9-channel PCM RX
3) (4) Hitec HS-5645 servos (servos purchased last summer), one for each airlon. Each servo has a 6" extension through the wing panel. Each servo also has an additional 12" extension to bring it into the fuselage where each set, left and right, are connected to 12" y-connectors. The y-connectors are connected directly to the RX, right on channel 1, left on channel 7.
4) (2) Hitec HS-5625 servos (older servos but purchased after programmer was upgraded to V1.03), one for each elevator half. Each servo has a 12" extension. Right elevator is connected to channel 2 on the RX, the left elevator is connected to channel 8 on the RX.
5) (1) Hitec HS-425 for throttle, connected with no extension to channel 3 on the RX.
6) (1) Hitec HS-81 for choke, with a 12" extension and connected to channel 6 on the RX.
7) (1) Hitec HS-5945 (v1.04) connected to the rudder. It has a 12" extension which is connected to channel 4 on the RX.
NOTEs:
1) The airlons servos' center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 1 and 7 are static at 120 and my subtrim is 0. I am using the Futaba 9C's AIL DIFF function.
2) The elevator servo's center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 2 and 8 are static at 115 and my subtrim is 0. I am using the Futaba 9C's AILEVATOR function with airlons set to 0%.
3) Since I'm still not sure real sure what I can or cannot do with a v1.04 servo, my rudder servo has never been connected to the programmer. Both the subtrim and endpoints are setup'd in the TX. Can I, with NO concern, reset and set the HS-5945, v1.04 center and endpoints with the v1.03 programmer. given that it is a single servo on a single control surface?
05-05-2005, 12:48 AM
#2
My Feedback: (31)
RE: Follow-up "Hitech 5645mg not working with Y connector?? "
ORIGINAL: hilleyja
Hitec's response to the 5645 vs Y connector thread appears to indicate that v1.04 servos are having signal sthrength problems???
Hitec's response to the 5645 vs Y connector thread appears to indicate that v1.04 servos are having signal sthrength problems???
NOT!
1) Is this problem only associated with y-connecting servos or will it also manifest itself with long extensions and/or large number of servos.
2) What is the relationship between Futaba PCM RXs and this problem? Why is this not a problem with other RXs? Is this another way of saying the
Futaba PCM RX puts out a much lower signal than ALL other RXs?
Futaba PCM RX puts out a much lower signal than ALL other RXs?
The problem is realized form the Futaba equipment not being able to “sink” adequate control signal current with multiple Hitec v1.04 digitals of a single RX channel output.
Please analyze my GP Christen Eagle setup for potential problems relative to current understandings -- this is an airplane I would rather sit in my hanger rather than take the chance of crashing due to radio or servo problems. Please be ultra conservative with your recommendations. I can easily upgrade to a larger battery if my setup appears to be lean on power -- I do check RX battery voltage after every flight at the field:
1) a single 2200 nimh 6volt battery on an MPI switch (DPDT heavy duty switch)
2) Futaba R129 9-channel PCM RX
3) (4) Hitec HS-5645 servos (servos purchased last summer), one for each airlon. Each servo has a 6" extension through the wing panel. Each servo also has an additional 12" extension to bring it into the fuselage where each set, left and right, are connected to 12" y-connectors. The y-connectors are connected directly to the RX, right on channel 1, left on channel 7.
4) (2) Hitec HS-5625 servos (older servos but purchased after programmer was upgraded to V1.03), one for each elevator half. Each servo has a 12" extension. Right elevator is connected to channel 2 on the RX, the left elevator is connected to channel 8 on the RX.
5) (1) Hitec HS-425 for throttle, connected with no extension to channel 3 on the RX.
6) (1) Hitec HS-81 for choke, with a 12" extension and connected to channel 6 on the RX.
7) (1) Hitec HS-5945 (v1.04) connected to the rudder. It has a 12" extension which is connected to channel 4 on the RX.
1) a single 2200 nimh 6volt battery on an MPI switch (DPDT heavy duty switch)
2) Futaba R129 9-channel PCM RX
3) (4) Hitec HS-5645 servos (servos purchased last summer), one for each airlon. Each servo has a 6" extension through the wing panel. Each servo also has an additional 12" extension to bring it into the fuselage where each set, left and right, are connected to 12" y-connectors. The y-connectors are connected directly to the RX, right on channel 1, left on channel 7.
4) (2) Hitec HS-5625 servos (older servos but purchased after programmer was upgraded to V1.03), one for each elevator half. Each servo has a 12" extension. Right elevator is connected to channel 2 on the RX, the left elevator is connected to channel 8 on the RX.
5) (1) Hitec HS-425 for throttle, connected with no extension to channel 3 on the RX.
6) (1) Hitec HS-81 for choke, with a 12" extension and connected to channel 6 on the RX.
7) (1) Hitec HS-5945 (v1.04) connected to the rudder. It has a 12" extension which is connected to channel 4 on the RX.
NOTEs:
1) The airlons servos' center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 1 and 7 are static at 120 and my subtrim is 0. I am using the Futaba 9C's AIL DIFF function.
2) The elevator servo's center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 2 and 8 are static at 115 and my subtrim is 0. I am using the Futaba 9C's AILEVATOR function with airlons set to 0%.
3) Since I'm still not sure real sure what I can or cannot do with a v1.04 servo, my rudder servo has never been connected to the programmer. Both the subtrim and endpoints are setup'd in the TX. Can I, with NO concern, reset and set the HS-5945, v1.04 center and endpoints with the v1.03 programmer. given that it is a single servo on a single control surface?
1) The airlons servos' center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 1 and 7 are static at 120 and my subtrim is 0. I am using the Futaba 9C's AIL DIFF function.
2) The elevator servo's center and endpoints have been setup'd by the Hitec programmer. My TX endpoints for channel 2 and 8 are static at 115 and my subtrim is 0. I am using the Futaba 9C's AILEVATOR function with airlons set to 0%.
3) Since I'm still not sure real sure what I can or cannot do with a v1.04 servo, my rudder servo has never been connected to the programmer. Both the subtrim and endpoints are setup'd in the TX. Can I, with NO concern, reset and set the HS-5945, v1.04 center and endpoints with the v1.03 programmer. given that it is a single servo on a single control surface?
YES, you can reset the v1.03 digital with the programmer. The only issue known is the deviation from programmed parameters of neutral and end-points.
I’ll try and suggest another understanding of this specific problem.
Let’s install your v1.04 digital in a servo set-up rig… OK, now let’s “RESET”
On to programming neutral and end-points; program the servo to neutral at 90 degrees to the servo case and sixty degrees travel in both directions. Moving on lets go back and check the out come of the programming with the manual servo operation mode. If all is well 1500us will net the arm at ninety degrees to the case. What’s up neutral, and end-points are all two degrees rotated from the programmed parameters….. THIS is the PROBLEM in its entirety.
Install the servo in the model and NOW program it to your TX and model needs. You’ll never realize there was or is a problem as your matching the needs of the TX and model to the servo, whatever the arbitrary programmer settings maybe.
