Hi,
I'm an Engineering student, I working on a self-balancing robot based on Arduino.
I am using the power driver Wingxin model IBT-2,
the site of those who produce them is: ALFS-TECH.taobao.com
which is totally in Chinese and also with the translation I did not understand how to do to write an email!
The driver uses two BTS7960 (half H-bridge) that support 24V and 43A
The problem is that the driver no signs of life! Has anyone used or can help me?

I enclose a photo of the driver!
The connections I've made are:
Driver side Arduino side
-pin1 = LPWM -> pwm arduino (controlled with analogWrite)
-pin4 = L_EN -> Arduino digital pin driven HIGH
pin8-= GND -> Arduino GND
- Power supply + B,-B -> 12Vdc battery
- + M,-M -> connected to a small motor for test (10Watt-12V)
I made several attempts but the motor has not moved! (While the classic driver with L298 work perfectly)
If someone can give me any suggestions I thank you in advance!