Kelly Ebike Brushless DC Motor Controller User
’s Manual
V 3.3
Page 8
9- Reversing switch input
10- Brake switch input
11- Hall phase C
12- Hall phase B
13- Hall phase A
14- RTN: Signal return
Notes:
1. All RTN pins are internally connected. RTN is internally connected to B-.
2. Switch to ground is active. Open switch is inactive
Caution: Make sure all connections are correct before applying power. Otherwise it may
damage the controller! Please securely wire B- before applying power. It's preferred to place
contactor or breaker on B+. Please place precharge resistor on any breaker! It can cause
damage without it!!!