Wheelchair motors not moving with joystick - please help

Hey,
I purchased an old electric wheelchair a little while back for a project. I ended up removing the motors, and the electromagnetic brake attached to it so I only had +and - wires coming from the motors. I basically removed everything from the chair including the joystick controls and motors. Now Ive decided to put it back together in its most basic form, ie frame, wheels, motors and joystick. The chair is an old merits, with a penny and giles joystick/computer unit as pictured here: esolutionsusa.com/ebay/Travi … 29_4_2.JPG
I can get the unit to turn on, but the battery meter is flashing 3 bars which means left motor wiring fault. I had connected the motors the way they came off before with the wires the right way around, yet I cant get them move with the joystick. The only thing different is that there are 4 wires (2 for each motor) that used to run the electromagnetic brakes. I think it thinks theres an error because they are not connected to anything. I have also tried applying voltage to them and also connecting them together to make it think the brakes off. The motors work perfect when connected directly to 24v supply.
The chair worked fine before I dismantled it, the only thing different is the brake wires from the control unit are not connected because I removed the brakes on the motors for something else. I hope someone can help me in some way. I’m sure its something easy that ive just missed, I hope!

Cheers!
Tim

Hi Tim,

Welcome to the RobotShop/Lynxmotion Forum.

Looking online (as i have no experience with the Wheelchair) i found that the brake motors might need to be connected to the controller unless it think there is a problem.
Those Wheelchairs have safety feature so you don’t run someone in a wall.

Here is part of what i found:

I am not sure what the controller need to see…

Thanks for your help. I think it had to do with putting a resistor in place of the brake wires. I connected up the brake wires from the motor to the control unit but it still didn’t work unfortunately. The electromagnetic brake part was removed but the end housing with the wires were attached back on the motor. This might be some of the reason why it is not working because different resistance, but I cant see why.

Cheers

Hi there I know it’s been long time since this was posted but I’ve got the same problem. Did you ever find a fix to this? I’ve tried putting resistors in place however that didn’t work for me and it’s still showing an error