Search found 73 matches

by Firedog
Apr 06 2021 10:26am
Forum: EBike Troubleshooting
Topic: Stromer ST2 - drive error code 0X210002
Replies: 5
Views: 161

Re: Stromer ST2 - drive error code 0X210002

You searched for the that error code? I had no trouble finding lots of guys with the same error. You now seemed intent on repairing the ST2 not using a generic controller. Great idea, I can help much with that. Controllers can be repaired. If you can't test the controller's mosfets, go back to Grin ...
by Firedog
Apr 05 2021 2:23am
Forum: EBike Troubleshooting
Topic: Stromer ST2 - drive error code 0X210002
Replies: 5
Views: 161

Re: Stromer ST2 - drive error code 0X210002

First, figure out which of the small wire is the thermistor. Usually it's 10K ohms at room temp between thermistor wire and black. I would suggest that you get a "ebike tester" (~$15). It will tell you if the halls and phase wire output is normal and if the controller has any problems. Tes...
by Firedog
Mar 31 2021 5:13pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

The motor probably needs more phase amps than normal due to the low pole count. What are your phase amp/battery amp settings? Interesting. It 17amp max. 36/48v controller with a 54v battery rated for 30amps continuous. If I could survive the shaking below 10mph it feels pretty good above 10. The co...
by Firedog
Mar 31 2021 12:48pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

Amberwolf, I just watched Justin's video on Salvaging a BionX hub motor with bad internal controller. https://www.youtube.com/watch?v=Wc8OJtFRUng The BionX has 24coils/22magnets/halls every 8 coils (120degrees). He used a Phaserunner3 controller, software and a Window's computer to automatically opt...
by Firedog
Mar 30 2021 3:48pm
Forum: EBike Troubleshooting
Topic: Stromer ST2 - drive error code 0X210002
Replies: 5
Views: 161

Re: Stromer ST2 - drive error code 0X210002

I have several ST1 hub motors. Those have the controller inside the hub which sometimes failed. I opened the hub removed the controller and brought the 3 phase and 5 Hall sensor wires out to a 30A generic controller and its a great bike. I believe the ST2 has the controller in the battery area so th...
by Firedog
Mar 29 2021 9:06am
Forum: EBike Technical
Topic: 3 phase wire combination
Replies: 8
Views: 235

Re: 3 phase wire combination

Please confirm you are using 2 controllers; one for each motor.
by Firedog
Feb 09 2021 11:36pm
Forum: EBike Troubleshooting
Topic: I have a bldc Q5O1 controller and am having trouble wiring my lcd 8H display
Replies: 17
Views: 561

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

Those controllers work well. No PAS input, so if your bike had that; no more. The throttle with cruise control is better better than PAS, IMO. From the "Manual" and the circuit board, you should be able to figure out most of the wire except for 2 or 3. The Red and Black thick wires go to t...
by Firedog
Feb 09 2021 2:00am
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

This E+'s hub motor has 30 magnets and 24 coils with 3, 40L hall sensors with 2 coils between each hall. Rotating the motor shows 6 unique hall signals using an LED ebike tester. The pattern repeats 15 times during a 360* of the wheel. The stock pattern includes all three halls on at the same time w...
by Firedog
Feb 05 2021 11:14am
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

Can't seem to leave a problem alone. I looked close at the hall mounting. All are mounted with the bevelled edge away from the magnets. That's right side up, I think. The motor has 24 coils and 27 magnets. Stock hall spacing is 2 coils, but with 5 hall pads available, the spacing can be changed to 1...
by Firedog
Feb 04 2021 10:42pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

Thanks to amberwolf and others, but I'm going have to give up tying to use and external controller work with the E+ hub. It would have been really nice to come up with a simple method to convert 60 degree hub motor to 120. I think that's still possible, but I think there are other things going on wi...
by Firedog
Feb 04 2021 9:27pm
Forum: EBike Technical
Topic: ¿How do I put the cassette on a rear hub without the freewheel?
Replies: 5
Views: 236

Re: ¿How do I put the cassette on a rear hub without the freewheel?

$10 for multiple freewheels all day long on amazon. I got boxes of the $10 variety freewheels 14/28t 5,6 ,or 7 speed on cheapo bikes. Free to any one that want to pick 'em up. To me, those are worthless on a 25mph ebike conversion, since above 15mph you can't pedal fast enough to assist the motor a...
by Firedog
Feb 04 2021 1:32am
Forum: EBike Technical
Topic: ¿How do I put the cassette on a rear hub without the freewheel?
Replies: 5
Views: 236

Re: ¿How do I put the cassette on a rear hub without the freewheel?

Freewheels are used on most inexpensive rear hub motors. The coasting ratchet is build in. You bought a cassette which is just a stack of gears that fit over a ratcheting hub and can be used for many gearing combos. Cassettes are simplier and usually less expensive, especially if you need an 11t to...
by Firedog
Feb 04 2021 1:10am
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

It did work on the tester correctly, right? But now it doesn't, *after* having tested it on the controller? The LEDs flashed in correct order the with the testers 4.75v powering all 3 halls and the 74LS00 inverter. When I used the controllers 4.9V to power only the inverter, the blue hall LED was l...
by Firedog
Feb 03 2021 9:39pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Having trouble with inverter circuit.

I use the battery powered ebike tester to compare the hall signals of my E+ hub motor to a Voilamart 800w that has 120 degree timing. Both hubs have 6 unique patterns as you slowly rotate the wheel forward which then repeat. The left set is the E+, stock. Center set the Voilamart hub. Right set is t...
by Firedog
Feb 02 2021 9:17pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

I missed doing the most basic test. My external controllers also run sensorless motors: unplug the halls and the E+ is sensorless motor. In the shop, wheel up, I connected only the phase wires. Did the "learning" routine to get the correct direction and let the controller know the halls ar...
by Firedog
Feb 02 2021 1:33am
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

Best guess is the halls are not in the usual 120-degree positions, and instead are 60-degree. Some controllers simply don't support that at all, and some just don't do it well, and some have to be manually set to the right way. I tested the motor with a motor/controller tester before connecting to ...
by Firedog
Feb 01 2021 9:12pm
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

Re: I gutted a E+'s "in hub" controller - strange results

IIRC the EMS E+ did NOT use a three phase motor. The Tidalforce that it was based on used a 7 phase motor. I am not sure if the E+ used seven phases or some other number, but when I looked at it years ago I thought it would not be easy to convert. Tidal force is 7 phase, but I've always understood ...
by Firedog
Feb 01 2021 2:10am
Forum: EBike Troubleshooting
Topic: I gutted a E+'s "in hub" controller - strange results
Replies: 26
Views: 1024

I gutted a E+'s "in hub" controller - strange results

I was given a 2010 era E+ bike several years ago. It had rear direct hub motor with the controller inside and a similar sized front hub containing 30 NiMH "D" cells (36v) and a very complex charge boards. When the bike worked, the performance and features were really good. To improve it, I...
by Firedog
Jan 25 2021 12:11pm
Forum: Items Wanted
Topic: Wanted: Crystalyte APM display
Replies: 2
Views: 505

Re: Wanted: Crystalyte APM display

No longer needed.
by Firedog
Nov 15 2020 2:36am
Forum: Items for Sale - New
Topic: Tool battery (Makita) mounts for ebikes
Replies: 28
Views: 2942

Re: Tool battery (Makita) mounts for ebikes

Hi, Is it possible to build a mount that could provide 84 Volts, a reasonable number of Ah, and still fir in a stealth b52 bomber? How about 96V? Of course, Each battery is 18V10.5ah. Connect as many in series as you dare and you are kinda stuck choosing a voltage which is a multiple of 18V. As far...
by Firedog
Nov 15 2020 2:17am
Forum: Items for Sale - New
Topic: Tool battery (Makita) mounts for ebikes
Replies: 28
Views: 2942

Re: Tool battery (Makita) mounts for ebikes

Mounting them is fine. How about charging 6 bricks? Even with dual charger you would need to attend 3 times to fully charge. Not that convenient. You have choices. 1. The chargers are fast (9 or 6 amps =~ 1 hour) and play music when a battery is finished charging. Some keep the chargers near and do...
by Firedog
Jul 31 2020 9:54am
Forum: Items for Sale - New
Topic: Tool battery (Makita) mounts for ebikes
Replies: 28
Views: 2942

Re: Tool battery (Makita) mounts for ebikes

I'd love to know more about the battery builder you have. Very jealous you can go around the marketing and proprietary junk that comes with the big box tools. OK, Here's my tool battery source. Alex, Sales Manager OCT BATTERY & PLC SYSTEM Co., Ltd alex@oct-power.com He builds tool batteries rep...
by Firedog
Jul 28 2020 1:46pm
Forum: Items for Sale - New
Topic: Tool battery (Makita) mounts for ebikes
Replies: 28
Views: 2942

Re: Tool battery (Makita) mounts for ebikes

Here's my latest build using those expensive Makita battery mounts and six cheap 18v10.5ah batteries (54v21ah = 1134wh). It's a pretty compact package. The build is for an elite road racer who needs a lead bike (mule) to train behind. Apparently, elite riders can't get competitive just solo riding. ...
by Firedog
Jul 11 2020 1:03pm
Forum: Items for Sale - New
Topic: Tool battery (Makita) mounts for ebikes
Replies: 28
Views: 2942

Re: Tool battery (Makita) mounts for ebikes

Wineboyrider, It looks like you considered all the problems and have found decent solutions. Go for it! I didn't see a 6ah version until you mention it and that's a big difference. If you can fit 3 in parallel that will be a nice ride. The battery I opened was a clone marked 6ah but only had 20, 2ah...