Search found 476 matches

by TommyCat
Feb 27 2021 3:14pm
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

I hope this picture is adequate for use in your other thread. I’m happy to take additional photos if it will benefit the tutorial. Let me know. Very kind of you to offer! As your most recent ones had the small resistor and hall harness a bit harder to see. I decided to go with this pic as of now, w...
by TommyCat
Feb 27 2021 9:31am
Forum: EBike Troubleshooting
Topic: BBSHD 52V - Full/partial power cut-outs with stable battery at 54V
Replies: 3
Views: 74

Re: BBSHD 52V - Full/partial power cut-outs with stable battery at 54V

I'd double check the Shark's cradle connections as it seems to be a known issue. https://electricbike.com/forum/filedata/fetch?id=46171&d=1521358854 As seen in this informative thread... https://electricbike.com/forum/forum/knowledge-base/batteries-aa/12542-luna-hardcase-battery-documentation?p=...
by TommyCat
Feb 26 2021 9:24am
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

Looks good. :)

How's everything testing out for you?
by TommyCat
Feb 24 2021 9:23am
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

...Also let me know if it's better to use 5 volts or 9 volts for the power source. I agree with Amberwolf. Using a voltage source that is as close to your actual supplied 5vdc source of your controller. Would be, IMHO, a better choice. Especially if working on something with "intermittent"...
by TommyCat
Feb 23 2021 9:46am
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

The schematic drawing wasn’t clear to me, but your picture is worth a thousand words, I get it now, the probe needs to be on the other side of the resistor from the power source. Nice photoshop work by the way! :thumb: Glad to see we are on the same page. The photo editing program I used was paint....
by TommyCat
Feb 22 2021 9:49am
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

... I’m not quite sure why you instructed to review the diagram again though, is there something else not right or not recommended other than turning the resistor around? Just wanted to make sure that you understood my written directions by comparing it to the illustration. So that you would end up...
by TommyCat
Feb 21 2021 4:29pm
Forum: EBike Troubleshooting
Topic: Throttle problem
Replies: 2
Views: 74

Re: Throttle problem

Screen shots of your controller's setpoints.
Type of throttle, hall or potentiometer?
Throttle output voltage readings.
Battery particulars.
New build or running for some time?

The more information, the better...




Regards,
T.C.
by TommyCat
Feb 21 2021 3:45pm
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

Mock-up is not quite right... If you were to move your meter's RED test lead probe to the other side of the resistor, leaving everything else the same. I think you would have it. Review the diagram... 5vdc power supply to hall sensor 5vdc supply in and one side of the resistor, Red meter probe and h...
by TommyCat
Feb 21 2021 9:27am
Forum: EBike Troubleshooting
Topic: Intermittent no power problem
Replies: 53
Views: 879

Re: Intermittent no power problem

Perhaps these will help...


Image


Image


As taken from this thread... see it for complete details.
Testing BLDC motor's Phase Wiring - Hall Sensors and Wiring.



Regards,
T.C.
by TommyCat
Feb 20 2021 9:29am
Forum: Motor Technology
Topic: Adding hall sensors - Best positions?
Replies: 10
Views: 245

Re: Adding hall sensors - Best positions?

Here's an advanced hall sensor placement thread which may help. Bit over my head, but it does have some graphics... :)
http://mitrocketscience.blogspot.com/20 ... t-for.html


Regards,
T.C.
by TommyCat
Feb 15 2021 9:38am
Forum: EBike Technical
Topic: Power Meter Project
Replies: 15
Views: 364

Re: Power Meter Project

:thumb: I like to use a similar set-up to monitor charger operation... yNcjyf4KPx4 See it built here (post #47)... https://electricbike.com/forum/forum/builds/ebike-building-directions/48457-1st-build-e-bike-rider-magic-pie-v5-rear-bottle-batt-52v-11-5ah-huffy-parkside?p=72784#post72784 With a more ...
by TommyCat
Feb 09 2021 10:32am
Forum: EBike Technical
Topic: S900 display parameter settings
Replies: 2
Views: 91

Re: S900 display parameter settings

This manual may give you more information on those setpoints. But bear in mind, manufactures have control over the firmware programming of there product's controllers/displays. And as such may not allow changing or provisions of some features offered by others... a main reason why display replacemen...
by TommyCat
Feb 09 2021 10:16am
Forum: EBike Troubleshooting
Topic: I have a bldc Q5O1 controller and am having trouble wiring my lcd 8H display
Replies: 17
Views: 515

Re: I have a bldc Q5O1 controller and am having trouble wiring my lcd 8H display

... cause ill say ive cut all the connectors off the wires Gulp :shock: All the connectors off of all the wires? Do you still have them in the connector groups ? Did all the wiring colors match the given explanations above? :( If so use process of elimination... To get you started, of course you ha...
by TommyCat
Feb 08 2021 10:38am
Forum: EBike Troubleshooting
Topic: I have a bldc Q5O1 controller and am having trouble wiring my lcd 8H display
Replies: 17
Views: 515

Re: Help to wire my 48v 1500w ebike without a display

i am trying to wire up my 48v 1500w ebike without using any display at all The somewhat amusing translation of the controller's wiring connectors has been the most helpful. Thank you. In order for the controller's internal power to be actuated. You must connect the "door lock" wire to bat...
by TommyCat
Feb 05 2021 10:22am
Forum: EBike Troubleshooting
Topic: Hall effect troubleshooting
Replies: 10
Views: 386

Re: Hall effect troubleshooting

I knew that old 5v wall wart would come in handy one day. In your face, better angels of not-hoarding old electronic junk! :lol: :thumb: This may help to check the halls without a controller connected... https://i.imgur.com/NktFBwJ.jpg And put another way... https://electricbike.com/forum/forum/kno...
by TommyCat
Feb 03 2021 10:21am
Forum: EBike Technical
Topic: Re wiring diagram for a 5 to 1 wiring harness
Replies: 11
Views: 610

Re: Re wiring diagram for a 5 to 1 wiring harness

That leaves the throttle The throttle has 3 pins. How can I tell the polarity? Perhaps I can use a digital multimeter to do this? On a hall sensored throttle would probably be safest if you look to see ( or OHM) where the wires attach to... https://i.imgur.com/FxWvw5r.jpg If testing the wires comin...
by TommyCat
Feb 02 2021 1:19pm
Forum: EBike Troubleshooting
Topic: Are generic Chinese controllers and throttles non-adjustable?
Replies: 26
Views: 746

Re: Are generic Chinese controllers and throttles non-adjustable?

Well said Amberwolf! (where's that like button?) Just wanted to say that some have reported that the #1 mod that removes the dead zone at the beginning of the twist, resulted in a smoother start. Not sure why but perhaps it allows taking advantage of the very slight voltage curve hesitation at the s...
by TommyCat
Feb 01 2021 5:17pm
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 326

Re: Kelly KBS-E controller Variable Brake Regen setup issues

But not pin 3 :warn: Sorry... :oops: mis-typed and left off the 1. EDITED post. But to clarify, my point was to just point out that switching the two wires would not be a way of verifying correct regen operation as they use different inputs for operation. I don't know if one is dependent on the oth...
by TommyCat
Feb 01 2021 11:14am
Forum: EBike Troubleshooting
Topic: limitation for a throttle ?
Replies: 4
Views: 214

Re: limitation for a throttle ?

I am a little bit sceptic about this schematic, Perhaps this output graph will help you... https://i.imgur.com/E40Kw1H.jpg it will lower voltage for hall sensor, and it can stop working under some voltage like 3V... 2.7vdc to be closer... Just a hair over half throttle input. Better i thing is conn...
by TommyCat
Feb 01 2021 10:13am
Forum: EBike Troubleshooting
Topic: limitation for a throttle ?
Replies: 4
Views: 214

Re: limitation for a throttle ?

Sounds like this throttle mod would work nicely for you... https://i.imgur.com/fiSLCIJ.jpg With more description and explanations in it's thread seen here... https://electricbike.com/forum/forum/kits/golden-motor-magic-pie/70584-guide-to-hall-sensor-throttle-operation-testing-and-modification?p=7058...
by TommyCat
Feb 01 2021 10:04am
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 326

Re: Kelly KBS-E controller Variable Brake Regen setup issues

Perhaps this set-up thread on the Kelly KBSxx controller will help... https://endless-sphere.com/forums/viewtopic.php?f=2&t=92899 I even swapped the no.2 wire (Brake AN) to the no.13 wire (Brake Switch) just to see whether there is manufacturing defect but still not working. The no. 2 pin would ...
by TommyCat
Feb 01 2021 9:41am
Forum: EBike Troubleshooting
Topic: Are generic Chinese controllers and throttles non-adjustable?
Replies: 26
Views: 746

Re: Are generic Chinese controllers and throttles non-adjustable?

I seem to have hit the nail on the head in my original post re parabolic vs linear voltage which is exactly what you plotted for pot throttles at the end of your instructional write up. The output difference took me quite by surprise. But certainly explains why POT throttle riders like how their th...
by TommyCat
Jan 31 2021 5:42pm
Forum: EBike Troubleshooting
Topic: Are generic Chinese controllers and throttles non-adjustable?
Replies: 26
Views: 746

Re: Are generic Chinese controllers and throttles non-adjustable?

Have a look at my hall sensor throttle thread... :shock: https://electricbike.com/forum/forum/kits/golden-motor-magic-pie/70584-guide-to-hall-sensor-throttle-operation-testing-and-modification Should tell you every thing you need to know about, and testing your throttle. Perhaps a profile will help ...
by TommyCat
Jan 30 2021 8:50am
Forum: EBike Non-hub Motor Drives
Topic: Mysterious Surron BAC throttle issue
Replies: 4
Views: 161

Re: Mysterious Surron BAC throttle issue

Here is a thread with a similar problem with the equipment that you have. May give you helpful clues, and what to look for...

https://electricbike.com/forum/forum/ma ... on-problem



Regards,
T.C.