CC data log results...is this good?

[WhatRLaws4]

I dont really know what Im looking at with my Castle Creations data logging. The graph is much easier to read than the file i saved...just lots of numbers taken every few seconds. Anyways, i got the avg and max readings noted, tell me if Im safe. The set up is a leopard 5698 910kv, Castle Creations Hydra Ice2 200HV, 2x4s 5000mah Turnigy 40-50c lipos for 8s total running 5.5mm bullets, and a x452 prop. Water was very choppy, ran for about 7min total. 1 min into running the collet on the motor came loose from the cable...turned off my trans and full throttle kicked in for a few seconds. Turned it back on and it stopped. Forgot to adjust my failsafe I think. Tightened the cable collet, then back off and running.
Volt: avg 37.3 max 45.2
Ripple: avg .9 max 4.34
Current: avg 6.9 max 130.2
Amp hours: avg .38 max 1.96
Watts: avg 221 max 3951
Temp: avg 73 max 115
RPM: avg 13331 max 116004?? I double check, but that cant be correct.
Throttle in: avg 1.570 max 1.989
Power Out: avg 13.9 max 100.

So...am i good?? Est speed was 50ish.

[hobby_man]

depends on what your looking for

[fla350tt]

you might have to set the number of poles for the motor in the esc to get the rpm read out correct. I am new at this and I had to do that with mine.

[Fluid]

Reading the average, maximum and minimum numbers is pretty worthless if you want to find out anything meaningful about your setup. You need to look at the graphs....but not all at once, only look at one or two at a time. Graph the rpm and the current to see what the averages were for the part of the run where you are full throttle. Check the ripple current, it should never be above 10% of pack voltage, and then only for a second or so. See how hot your ESC got - much over 200* and you may be headed for trouble. You have to download the "Graph Viewer" to see the graphs, they are there if you saved the files. And yes,re-set the motor pole count to your motor to obtain the correct rpm.


.

[WhatRLaws4]

ok...Ill make sure to set the pole count next time I run. Leo 5698 are 4pole, correct? My main concer was the ripple...4.34. Is that volts? If so, thats over 10%. What would reduce that? Higher C rating? Castle suggested using 4 packs instead of 2. I just dont want the added weight or expense of running 4 packs if I dont need to.

[keithbradley]

A cap bank can help, but the max numbers can be misleading sometimes. When you look at the graph you should be able to tell if that was an isolated occurance that happened for a split second, or a common problem during your runs.

[Fluid]

ok...Ill make sure to set the pole count next time I run. Leo 5698 are 4pole, correct?

You don't set it when you run, it's when you are reading the graph. If you saved the data you can change the pole count in the Castle Link window under the Edit tab. That Leopard is a 4-pole motor.

My main concer was the ripple...4.34. Is that volts? If so, thats over 10%. What would reduce that? Higher C rating?

Your packs are not delivering the power the motor is demanding, they are the weak link depressing the voltage. If the high ripple is more than a second or so, or happens often it can damage the ESC - Castle says that one of the main causes of ESC failure is a high ripple current. Better packs, or running in parallel should reduce the ripple. As Keith stated, a cap bank can help, but it is a bandaid. Shorten the power wires as much as practical, this will help a lot if the wires are long. While it is often impractical, ideally the power wires should only be 6"-8" total length from the pack to the ESC board. The closer you can get to that the better. Good connectors help too.



.

[WhatRLaws4]

So....maybe switching to some quality Dinogy 65c packs would be in order? Would running 2x4s 5000 65c packs for 8s 5000mah be better or worse that 4x4s 5000mah 40c packs for 8s 10000mah? I would really prefer sticking with only 2 packs in the hull vs 4 total. I understand its easier on the lipos w 4 packs, but wouldnt 2 65c packs sufice at the expense of a little run time? Would stepping up to 2x5s 5000mah 65c help anything other than speed? I just want solid reliability out of this..thats it. Im already plenty happy with the speed on 8s, so anything more is just a bonus. I will be switching to 8mm bullets ASAP no matter what however.