Need Plane Electrical System Planning Help
07-16-2012, 05:14 PM
#1
Thread Starter
Need Plane Electrical System Planning Help
I hope this is in the right forum;
I bought a 33% Extra 300L ARF and a DLE 111 engine. I am using a Spectrum DX8 and planning to use Hitec HV digital servos. Before I place the order for the electrical components, I think I need some help. I searched this forum for wiring diagrams, etc. and read for hours. I now have a few ideas on what needs to be done. But the whole electrical system(s) still seems a bit murky.
I have the AR8000 receiver that came with the DX8. I am not planning to use the AR8000’s telemetry, at this time. I am also looking at the AR 9110 PowerSafe receiver. My concern with the AR8000 is the current handling capability of the receiver. Will it consistently drive all the Hitec servos? Or should I just bite the $200 bullet and get the AR9110 PowerSafe Receiver? I would like to use the AR8000.How would it need to be powered (e.g. just plug two Receiver Power Packs into the servo bus)??
For the Flight Control System, I am tentatively planning to use: Two (redundant) 2000 mah 2S LiPo Receiver Power Packs, one DPST power supply cut-off switch, the AR8000 or AR9110 receiver and five HS-5585MH High Voltage Digital Servos for ailerons, elevators and throttle and one HS 5765MHHigh Voltage Digital servo for the rudder.
For the DLE 111, I am planning to use another 2000 mah 2S LiPo Receiver Power Pack and a SPST power supply cutoff switch.
For the two above applications, is a Voltage Regulator necessary? I was told that the Servos and DLE’s Electronic ignition will handle the 2Ss’ 8.2 – 7.4 VDC w/o a voltage regulator. However, HH’s description on the “High-Output LiPo Regulator with Switchby Losi” says it is required for the use of the Receiver Power Packs. Cutting the voltage down to 6 VDC is not really where I want to be. I was thinking 7 volts would take advantage of the servos’ full torque. Are these Losi VRs required? The only real plus of this would be the shutoff switches integrated into the VRs. But, if I use these VRs, I would need three (i.e. one for each of the Receiver’s supplies and one for the engine’s ignition.) Seems like a bit of overkill here. ?
What are your thoughts about using a BEC off the receiver’s power packs for the engine’s ignition? It saves the weight and cost of a third battery. But it does tie the two systems together essentially making a single failure mechanism.
I am not sure I understand the “softswitch” function of the AR 9110. Does that switch turn off the receiver and servos, etc. thus eliminating the need for the hardwired shutoff switches between the batteries and receiver? If not, just what does it do?
Does anyone have a recommended schematic/wiring diagram for this type of 33% scale plane setup? It seems it would really help to sell us the right stuff and have the customers happy too.
07-16-2012, 06:07 PM
#2
My Feedback: (2)
RE: Need Plane Electrical System Planning Help
ORIGINAL: Len Todd
Does anyone have a recommended schematic/wiring diagram for this type of 33% scale plane setup? It seems it would really help to sell us the right stuff and have the customers happy too.
I hope this is in the right forum;
I bought a 33% Extra 300L ARF and a DLE 111 engine. I am using a Spectrum DX8 and planning to use Hitec HV digital servos. Before I place the order for the electrical components, I think I need some help. I searched this forum for wiring diagrams, etc. and read for hours. I now have a few ideas on what needs to be done. But the whole electrical system(s) still seems a bit murky.
I have the AR8000 receiver that came with the DX8. I am not planning to use the AR8000’s telemetry, at this time. I am also looking at the AR 9110 PowerSafe receiver. My concern with the AR8000 is the current handling capability of the receiver. Will it consistently drive all the Hitec servos? Or should I just bite the $200 bullet and get the AR9110 PowerSafe Receiver? I would like to use the AR8000.How would it need to be powered (e.g. just plug two Receiver Power Packs into the servo bus)??
For the Flight Control System, I am tentatively planning to use: Two (redundant) 2000 mah 2S LiPo Receiver Power Packs, one DPST power supply cut-off switch, the AR8000 or AR9110 receiver and five HS-5585MH High Voltage Digital Servos for ailerons, elevators and throttle and one HS 5765MH High Voltage Digital servo for the rudder.
For the DLE 111, I am planning to use another 2000 mah 2S LiPo Receiver Power Pack and a SPST power supply cutoff switch.
For the two above applications, is a Voltage Regulator necessary? I was told that the Servos and DLE’s Electronic ignition will handle the 2Ss’ 8.2 – 7.4 VDC w/o a voltage regulator. However, HH’s description on the “High-Output LiPo Regulator with Switch by Losi” says it is required for the use of the Receiver Power Packs. Cutting the voltage down to 6 VDC is not really where I want to be. I was thinking 7 volts would take advantage of the servos’ full torque. Are these Losi VRs required? The only real plus of this would be the shutoff switches integrated into the VRs. But, if I use these VRs, I would need three (i.e. one for each of the Receiver’s supplies and one for the engine’s ignition.) Seems like a bit of overkill here. ?
What are your thoughts about using a BEC off the receiver’s power packs for the engine’s ignition? It saves the weight and cost of a third battery. But it does tie the two systems together essentially making a single failure mechanism.
I am not sure I understand the “softswitch” function of the AR 9110. Does that switch turn off the receiver and servos, etc. thus eliminating the need for the hardwired shutoff switches between the batteries and receiver? If not, just what does it do?
