---
title: General Brushless Motor Wiring Method B - EURARI
description: Brushless motor wiring method B explained: alternative lead configuration, connection diagram and startup precautions for BLDC motors. Wiring guide from EURARI.
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  - [Support](https://eurari.com/en/support)
- General Brushless Motor Wiring Method B
 
#  General Brushless Motor Wiring Method B 

09 September 2025

This document introduces the general wiring method A for the Ø28 series of brushless motors.

 | Connection mode B |  |
|---|---|

 | Pin NO. | SIGN AL | I/O | Specification | Remark |
|---|---|---|---|---|
| 1 | Vcc | IN | DC 12V(Operating range:8V ~15V) | Red wire, motor power supply |
| DC 24V(Operating range:8V ~ 26V) |
| 2 | GND | IN | Ground | Black wire,Ground |

 | 3 | FG | VOH | OUT | 1.5V≤V≤, at5V | Yellow wire,this is the open collector output(NPN),which can detect the rotation speed using the FG output according to the phase shift |
|---|---|---|---|---|---|
| VOL | 3mA max |
| Signal current | 3 pulse,can be customized |
| Output pulse | 0- 5.0V |
| 4 | CW&CCW | Input voltage | IN | 0-5.0V | White wire, CCW/CW Select |
| VOH | Min 1.5V | CCW ,High=CCW |
| VOL | Max 0.6V | CW ,Low=CW |
| 5 | PWM | VOH | IN | Mini 1.5V | Blue wire |
| VOL | Max 0.6V | Motor stop,High=stop |
| Input voltage |  | Motor running,low=start |
| PWM frequency | Advised 20kHz~ 30kHz |  |
| Note:   1、Vcc and GND can not be used interchangeably.   2、Please switeh CW/CCW after the motor is fully stopped. In order to avoid any damage.   3、How to start the motor: Red wire connect to the positive, black and white wires connect to the GND.If CCW direction: Connect white wire to low level power; If CW direction: Connect both black、 white and orange wires to low level power. |



  

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