Leadshine makes a shunt regulator specificaly for this.
https://www.zappautomation.co.uk/sr5...regulator.html

You can use a switching supply with a stepper system, but they are not ideal, but if you do, use a nonregulated switching supply. like the sps type.

Quote Originally Posted by the great waldo View Post
Hello All
I've just taken the plunge and bought a Leadshine MX3660 all in one box. The manual recommends using a shunt regulator/ capacitor to stop back voltage? blowing up the stepper drivers in an e stop situation. Does anyone know of the values of the capacitor required (48 volt switching power supply 3 x Nanotec ST6018L3008-A 4.3V 3.0amp stepper wired in parallel ) Or does any one have a circuit diagram of a shunt regulator that I could make. Also would it be better to use a non switching power supply transformer caps and rectifier ?
Thanks in advance

Cheers

Andrew