The drive will turn the motor on at one speed with a M03/M044 command and not accept or without an S command. In my case there was a minimum speed setting in the drive parameter. The drive see s M03 and turns on, then it reads the min value in its parameters and runs the motor at that speed, regardless if you issue an S command or not. Once I got the 0-10v analog working, the motor works normally. But it will still go to minimum speed with just an M03/M04 when you forget an S command.
Mike