Golden Motor Vector - Setting the controller Voltage Golden Motor Canada

How to Set the Voltage and Parameters on a Golden Motor Vector Controller

In this guide, we’ll walk you through how to connect and configure your Golden Motor Vector Controller using the official software and a USB programming cable. This example uses Windows 7, but the steps are similar for other versions of Windows.

Step 1: Connect the USB Programming Cable

Start by plugging in your Golden Motor USB cable. You should see a light on the cable—either red or blue. The color may vary by batch but doesn’t indicate functionality.

Next, right-click Computer, go to Properties, and open the Device Manager. Under Ports (COM & LPT), you’ll see the COM port assigned to the USB device. In this case, it appeared as CH340 COM8.

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Step 2: Open the Vector Software and Select the Correct COM Port

Open the Golden Motor Vector Controller software. Make sure the USB cable is already connected to the bike’s controller and the correct COM port is selected. In this case, COM8 is selected.

Click “Connect.” If you see an error message, do not close it yet.

Now, turn on the battery by switching the key or activating the power. Once powered, you should see live controller data populate on the right-hand side of the software. This confirms successful connection.

Step 3: Configure Controller Parameters

After the controller is connected, you can configure various settings.

Electric Braking (Regen):

Enable if you want regenerative braking.

Reverse Function:

Enable if using on a trike. You can also leave it enabled on a two-wheeled bike without wiring a reverse button.

Pedal Assist Ratio:

Skip this for now unless you’re configuring pedal assist—covered in another guide.

Step 4: Set the Battery Voltage

Click on the Battery Voltage setting. Double-click to open the options, then choose your battery voltage: 24V, 36V, or 48V.

After selecting the voltage, click Save Parameters to Controller at the top of the software.

This sets the voltage profile and updates safety thresholds:

At 48V: max voltage = 62V, cutoff = 42V

At 36V: max voltage = 52V, cutoff = 31V

These protect your battery from overcharging or deep discharge. If you’re using lithium iron phosphate (LiFePO4) or lead-acid batteries, different thresholds apply.

Step 5: Set Current Limits

Set the Battery Current to what your battery can safely handle. Golden Motor batteries can support 25A, but you may want to set a lower value for gentler use.

Peak Current is the maximum burst current allowed on takeoff—useful for strong acceleration but rarely sustained.

Step 6: Set Wheel RPM

Default RPM is usually 380. You may need to refer to a reference chart to match your wheel size and motor windings.

Step 7: Configure Reverse Speed

If using reverse (typically on trikes), you can set the Maximum Reverse Speed to control how fast the motor spins backward.

Step 8: Regenerative Braking Strength

Electric Brake Peak Phase controls the strength of regen braking.

Default: 50% (suitable for rear wheels).

For front wheel motors, consider reducing to avoid tire lock-up.

Step 9: Acceleration Ramp (Upramp Speed)

Set Acceleration to control how fast the motor reaches full speed from a stop.

Default is 100% (fastest). Lower values (e.g., 50–70%) are good for conserving battery and reducing wheel spin—especially on front hub motors.

Step 10: Save Parameters

Once you’ve set everything, click Save Parameters to Controller again to finalize the changes. You can now disconnect safely.

This completes the setup process. If you're unsure about specific RPM values, battery types, or need assistance with other features like pedal assist or display integration, feel free to contact Golden Motor support.