New Generation Controller -- Technology Breaking Through!

[GoldenMotor]

Magic! ... It can drive your ebike with failed motor hall sensors, throttle, breaker, or all of them failed together!



Special Features:

Available for 24V,36V and 48V brushless motors
Cruise Speed Control
Regenerative Braking
Hall sensor failure redundency (Automatically switch to sensorless control)
Other failures redundency (Work with failed throttle and power breaker)
You can force it to work with lower voltages (e.g 48V to 36V, 36V to 24V)
Report failure components by beeps
Anti-theft alarm
Motor phase self detection and calibration
Support Forward and Reverse
Excessive Current Protection
Low Voltage Protection
High Reliability

[e-lmer]

I have questions about my new BAC-281

1) What are the D T and S connections?

2) I do not know whare to connect the three
    battery gauge wires.

3) There are two wires connected to a horn button and
    two connections on the controller marked horn.
    Is this 12V to run an external horn?  Can I run a
    12V LED light system with this?

I would like english translation of the text
for all the pins on the 12 pin connector.

The goldenmotor.com diagram explains these pins:
 1
 2 Brake Cut out (regen?)
 3 D?
 4 throttle green (signal?)
 5 S?
 6 throttle red (power?)
 7 Power + (vcc) 
 8 common ground
 9 T?
10
11
12 cruise control

Thank you.
Duane Smeckert

[Echo]

hello everyone,

I am echo from goldenmotor, the connection way of the BAC-281 is on our web site:
http://www.goldenmotor.com/e-Bike-DIY/BAC-281%20Wiring%20Diagram.pdf

I hope this can help you.
Any more assistant, pls feel free to let me know.

[delta]

Hello Echo,

   
I'd like to give more information than the scheme of connections. I purchased an MX-24C-EB and I do not know the maximum voltage, and how the slightest change, nor do I know if the connections of cruise control are simply bypassing. Thank you.

[e-lmer]

Echo;

Thank you.  I had already reviewed that diagram.

It does not show the battery level indicator connections.

It does not describe the horn connection, but you supplied
a horn button and there is a horn indicator on the controller.

All of the writing is in Chinese, I would like translations for pins
1, 3, 5, 9, 10 and 11.


Thank you.
Duane Smeckert

[TOM]

 1 (No programme)
 2 Brake Cut out (pin2 and pin8)
 3 reverse(pin2 and pin8)
 4 throttle green(pin4,pin6 and pin8)
 5 S(No programme)
 6 throttle red (pin4,pin6 and pin8)
 7 Power + (vcc)  lock(pin7 and power ground)
 8 common ground
 9 T(No programme)
10 (No programme)
11 (No programme)
12 cruise control(pin8 and pin12)

[TOM]

(two connections on the controller marked horn)
This place must install especial horn from goldenmotor.
This horn can alarm and find out problems about your bicycle.

I have questions about my new BAC-281

1) What are the D T and S connections?

2) I do not know whare to connect the three
    battery gauge wires.

3) There are two wires connected to a horn button and
    two connections on the controller marked horn.
    Is this 12V to run an external horn?  Can I run a
    12V LED light system with this?

I would like english translation of the text
for all the pins on the 12 pin connector.

The goldenmotor.com diagram explains these pins:
 1
 2 Brake Cut out (regen?)
 3 D?
 4 throttle green (signal?)
 5 S?
 6 throttle red (power?)
 7 Power + (vcc) 
 8 common ground
 9 T?
10
11
12 cruise control

Thank you.
Duane Smeckert

[TOM]

MX-24C-EB
If you power 36V to MX-24C-EB,it couldn't be burned.
If you power is 12V,through the cruise control,your motor can still work at half speed.
If you throttle,electric brake,hall sensors are all broken,through the cruise control,still work

Hello Echo,

   
I'd like to give more information than the scheme of connections. I purchased an MX-24C-EB and I do not know the maximum voltage, and how the slightest change, nor do I know if the connections of cruise control are simply bypassing. Thank you.

[e-lmer]

So there is no battery charge indicator on the BAC-281?

That seems important.

[Leslie]

LOL no battery level indicator.  Although I think this is important to some Ive never needed it on the big batts.

However it's got some redeeming features, I havent blown any sensors yet but I'm guessing soon sensors will become redundant..

[e-lmer]

It's odd that the throttle that shipped with it came
with a level indicator.  I know they have them without
because my first kit had an external level meter on the
throttle.

I mostly like the meter because it tells me the switch is on.
I guess I can wire up something instead.

I hooked everything up, but it looks like something is wrong.
(The colors are wrong on the diagram, but the pins are
listed so it's good there.)

I may have hooked up just the power, the throttle,
the motor and the hall sensors. 

It all worked on the other speed controller.

Does anyone know what kind of buzzer hooks up
to the speaker jacks? Maybe it's trying to tell me something.

[e-lmer]

Ok, the nice twist throttle with the integrated
battery indicator that I just bought is incompatible
with the new speed controller.

Is this just a wiring thing?

The thumb throttle that came with is ok, but it makes
it hard to use the shifters.

[johngalt2112]

Wow, this controller is cool, but I'm confused on a couple things.  First, If I'm using the 20 AH li-ion batts,  where do I wire the charge wire for the batts at on the controller to make the regen brake work?  Right now, the brake will cut out the motor power, but not brake.  Second, is there no logic switch connection? How do I get level indicator connection?  Could I wire it to positive on battery and have it work right or no? Thanks all! Great biking.

[biohazardman]

Wow, this controller is cool, but I'm confused on a couple things.  First, If I'm using the 20 AH li-ion batts,  where do I wire the charge wire for the batts at on the controller to make the regen brake work?  Right now, the brake will cut out the motor power, but not brake.  Second, is there no logic switch connection? How do I get level indicator connection?  Could I wire it to positive on battery and have it work right or no? Thanks all! Great biking.

My guess is that once you are moving it works like the rest of the regen controllers.  You simply let off on the throttle and you should feel the regen.  Using the brake usually, cuts out the motor completely so defeats any regen capability.  No extra wires should be needed it should charge through the same wires that run power to the motor.  Often there is a jumper setting to enable or disable the regen function.  Once it is enabled, it should werq as described.

[johngalt2112]

Hey, thanks for the reply bio.  Okay, so the charging is working right and so is the regen brake.  But, I can't get the pedelec to work.  It is plugged to the right port.  It says in online inst. to push the push the cruise control button twice to enter pedelec mode, but that doesn't work.  Also, I don't know where to plug in the logic switch and batt meter? are these problems related?