How to control the 4 axis synchronization with two RMC75E

If I have two RMC75E-MA2,How do I connect them to control 4 axes like RMC150.

You can connect them to control 2 axes each. Do you need to synchronize the motion between the two RMC75E’s? You can use a PLC to command both RMC’s. If you do not have a PLC in the system, you can use the Enable Output on one RMC to trigger the Fault Input (make sure to disable the Fault Input Autostop) on the other RMC to that they can perform motion at the same time.