Supra/Pbx-11/PEC - Can I use ECM motors?

Supra/Pbx-11/PEC - Can I use ECM motors?

Supra-RS - The Supra can support up to 4 0-10v DC stages by adding a K210050 --10VDC expansion kit PBx-11 -
The PBx-11 has 2 0-10v DC stage outputs located in the display board. *These two stages track the variable AC stages and are not independent from the AC stages.
PEC- The PEC has no 0-10v DC support.