Has anyone tried the new PowerFlex 527s?
I've been working on a project using these. The 527s now use the motion planner in the PLC and are treated as motion objects (they are placed in the motion group).
So to command the 527, rather than accessing elements of the Input or Output assembly instance (.Start, .Stop, etc...), one has to use the motion instructions (MSO, MSF, MAJ, etc...).
Before, it was relatively simple to change the drive speed. I could have a PID loop or other calculation writing to the frequency command output member.
Now it seems I either have to re-execute an MAJ or do a MCD (change dynamics) each time the speed reference changes. It seems like a lot of work just to change drive speed.
Is there some other way to actively manage the speed at high frequency?
Thanks.
I've been working on a project using these. The 527s now use the motion planner in the PLC and are treated as motion objects (they are placed in the motion group).
So to command the 527, rather than accessing elements of the Input or Output assembly instance (.Start, .Stop, etc...), one has to use the motion instructions (MSO, MSF, MAJ, etc...).
Before, it was relatively simple to change the drive speed. I could have a PID loop or other calculation writing to the frequency command output member.
Now it seems I either have to re-execute an MAJ or do a MCD (change dynamics) each time the speed reference changes. It seems like a lot of work just to change drive speed.
Is there some other way to actively manage the speed at high frequency?
Thanks.