CSMIO/IP-M and PM752 Drivers

**Neale** · 27-01-2020

If it's this pulse edge problem - certainly sounds like it! - then you can either swap over the "step" connections at one end (IP/M or driver) or change the "active high/low" setting for the step pulses in Mach4. I'm assuming that it has a setting for that, just like Mach3. I had this problem on my Z axis which is why it didn't show up for a while - you see the problem when there are lots of direction changes on that axis and for mainly profile cutting, there aren't many on Z.

**JAZZCNC** · 27-01-2020

Originally Posted by Neale

If it's this pulse edge problem - certainly sounds like it! - then you can either swap over the "step" connections at one end (IP/M or driver) or change the "active high/low" setting for the step pulses in Mach4.

Just as an also to this for others having this problem, some drives let you change the step edge using a dip switch.