I have managed to get the amplifier to work, a freeload voltage of 1.418V is detected with a 10V input. George had advice me a instrumentation amplifier INA125 that has a higher tolerance of noise, which may be useful. The output is ready to be connected to the microcontroller and to be used as a parameter to control the stepper motor.
The motor is connected to the driver, that needs to be connected to the microcontroller in the next stage. It requires several digital inputs, one will turn the motor in every rising edge, another selects the direction the motor is truing.
I am still navigating my way round the language by reading the command manual as well as examples on the Galil wbsite.
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