BRKC-180

[cncdrive]

The purpose of the braking circuit is to damp the voltage rise when the motor is deccelerating rapidly and when it acts as a generator feedring current back to the power supply and rising voltage.
So, the braking circuit is to protect the power supply and the drive from overvoltage events happening on motor deccelerations.
You should connect the braking circuit in parallel with the power supply. Positive side of the BRKC to the positive side of the power supply rail and the negative side of the BRKC to the negative side of the power supply.
If you have more than one power supply installed separately (not connected up in parallel or in series) then you will need to install separate BRKC for each.
And even for one PSU you can install more than one BRKC circuits in parallel if the regenerative energy is that high, because the BRKC boards will then share the power dissipation,
so if the motor creating a large regenerative energy or if more motors are running from the same PSU then one BRKC might be not enough to dissipate all the regenerative energy created by the motors.
The user should verify the heating of the BRKC after installation with test runs of the machine and if heating of the BRKC seems excessive then install more BRKC in parallel to make sure the resistors on the BRKC will not overheat on the long runs.