Castle Creation Phoenix 85HV robustness
08-26-2009, 05:17 PM
#1
Thread Starter
Castle Creation Phoenix 85HV robustness
For those Phoenix 85HV users, how long your ESC have been used?
Mine only last 291 flights, then blew the capacitors in flight, resulted to dead-stick landing. The ESC never crashed, never over current. My typical peak current was ~72 Amp, temperature of ESC after one Master sequence was ~135F. Same settings since last year, failed in a routine practise flight.
This is the third Phoenix 85HV failed in my club. The other two had ~200 flights, same condition....... never crash or over current. Failed during routine practise with no reason. However, the other pattern flyer in my club had ~500 flights w/o any issue. All of us were using the same settings. So not sure what's the root of cause. Any ideas? Thanks!
Luke
Mine only last 291 flights, then blew the capacitors in flight, resulted to dead-stick landing. The ESC never crashed, never over current. My typical peak current was ~72 Amp, temperature of ESC after one Master sequence was ~135F. Same settings since last year, failed in a routine practise flight.
This is the third Phoenix 85HV failed in my club. The other two had ~200 flights, same condition....... never crash or over current. Failed during routine practise with no reason. However, the other pattern flyer in my club had ~500 flights w/o any issue. All of us were using the same settings. So not sure what's the root of cause. Any ideas? Thanks!
Luke
08-26-2009, 06:31 PM
#3
RE: Castle Creation Phoenix 85HV robustness
Luke, how does the battery lead length compare between the 85HV users in your club. Some say excessive battery length puts a strain on the capacitors. I have not had an inflight failure and my battery leads are not minimized.
Woodie
Woodie
08-26-2009, 06:42 PM
#4
Thread Starter
RE: Castle Creation Phoenix 85HV robustness
Don:
Unlike Dale, Michael and Kevin, mine is relative longer since my battery packs are closer to the CG. I will check if there is any possibility that G-force will pull the cables onto the capacitors. Thanks!
Luke
Unlike Dale, Michael and Kevin, mine is relative longer since my battery packs are closer to the CG. I will check if there is any possibility that G-force will pull the cables onto the capacitors. Thanks!
Luke
08-26-2009, 06:57 PM
#5
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RE: Castle Creation Phoenix 85HV robustness
It's not a physical strain. The longer leads result in more energy being dumped into the capacitors and a tendency to overheat. Many ESCs give a maximum recommended length for battery leads. If you want to run longer leads you're suppose to add extra capacitors.
08-26-2009, 07:21 PM
#7
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RE: Castle Creation Phoenix 85HV robustness
Perhaps the capacitors don't like the big charge current when the batteries are connected?
Just my two cents worth...
Cheers
Jason.
Just my two cents worth...
Cheers
Jason.
08-26-2009, 08:03 PM
#8
RE: Castle Creation Phoenix 85HV robustness
ORIGINAL: lsjpeng
I 'm talking about 1'' vs. 3'' long. I don't think this is the root of cause.
I 'm talking about 1'' vs. 3'' long. I don't think this is the root of cause.
I doubt that is the issue then.
Woodie
09-03-2009, 05:54 PM
#9
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RE: Castle Creation Phoenix 85HV robustness
temp seems a bit high, also if you using a connector that causes alot of arcing that could cause a issue also...
been using CC HV in pattern and small surveillance planes for 5 years without problems...
scott
been using CC HV in pattern and small surveillance planes for 5 years without problems...
scott
09-06-2009, 02:36 PM
#10
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RE: Castle Creation Phoenix 85HV robustness
Also, before mine died (approx 85 flights) I was having occasional synchronization problems. I have a new one from CC, have not yet decided to use it, the Jeti is working flawlwssly, thank you Don, and it's lighter.
Dale
Dale
