Hardware Differences        


This page is currently under development.  As the release of the CMD-2EX-SA gets closer this page will be updated with the most current information.


The CMD-2EX-SA was designed to be drop-in compatible with the PMX-2EX-SA

The enclosure style of the CMD-2EX-SA, are very close to the enclosures used of the PMX-2EX-SA. The CMD-2EX-SA are also pin to pin compatible to the PMX-2EX-SA. In most cases, no changes to mounting and connector locations, panel cutouts, brackets, or cable harnesses will be necessary.

Some new features are using pins which were labeled N/C in the PMX-2EX-SA. Please review the manual before connecting the CMD-2EX-SA to your system.


Hardware differences between the CMD-2ED-SA and PMX-2ED-SA.

       Stepper Motor Drivers:

       1. CMD-2ED-SA used a more advanced stepper motor driver, Toshiba TB67S128FTG, which addes the following features

               - 

       2. Motor Axis power LED and Enable LED added.

       3. Micro-stepping can be set (full to 1/8) with jumpers on PCB for backwards compatiblity. If no microstepping jumpers are installed, microstepping (full to 1/128) can be set in the softwere and changed on-the-fly.

       4. Jumper set current setting adjusted to match stepper motors from Nippon Pulse.

       5. On PCB Potentiometer added for custom current setting adjustment.

       

       6. Position latching inputs were added to pin 20 (Latch X-axis) and pin 24 (Latch Y-axis) of the 50-Pin Connector Control/Encoder IO connector.


Last updated Wednesday, July 22, 2026