400W servo - Leadshine ACS806 + ACM604V60 driver - PSU size?

[dsc]

Gary,

good stuff, looking at the specs the CD422 can do upto 750W, so I'll go for a CD422 + 750W AC SMH80 servo.

Regards,
dsc.

[Gary]

That's a big motor, with a 3:1 ratio that would be a continuous torque of 7.17Nm and a peak of 21.33Nm at 1000 RPM.
Thats a big jump up form 400W.

[dsc]

I know Gary, but with the smaller 400W motor the peak torque is 3.82Nm and with a 2.5:1 ratio, this gives me less than 10Nm peak. From the tests I've done I need around 12Nm, so I'd rather go slightly bigger and later on downgrade. Plus the price difference between the 400W and 750W is almost nothing, size-wise it might matter, so I'll have a think about it.

Regards,
dsc.