Hello,
I'm am engineer for a plastic manufacturer. We swapped out a oem motor with one of equivalent nameplate stats made by marathon on our roll stand. The new motor was auto-tuned in the floor prior to re-assembly to the gearbox.
On machine start I noticed there was some process issues and ended up using my foot per minute tach (this how we control speed at the PLC) to find out the new motor was having a -12fpm mismatch from commanded speed.
This middle motor is the master, the bottom and top motor follow the commanded FPM of the middle. The top and bottom have the proper speed output and set-point. They are commanded to be 65fpm, and we see 65fpm.
The middle is commanded to 65fpm, and it is only seeing 52fpm. The A1000 is setup with a -10 to 10v analog on A1 and no parameters were changed only the motor. The motor nameplate is 100% identical.
Is there a parameter to scale the input vs output? How will I tune this without getting into the PLC output scalar (password protected by OEM)
I'm am engineer for a plastic manufacturer. We swapped out a oem motor with one of equivalent nameplate stats made by marathon on our roll stand. The new motor was auto-tuned in the floor prior to re-assembly to the gearbox.
On machine start I noticed there was some process issues and ended up using my foot per minute tach (this how we control speed at the PLC) to find out the new motor was having a -12fpm mismatch from commanded speed.
This middle motor is the master, the bottom and top motor follow the commanded FPM of the middle. The top and bottom have the proper speed output and set-point. They are commanded to be 65fpm, and we see 65fpm.
The middle is commanded to 65fpm, and it is only seeing 52fpm. The A1000 is setup with a -10 to 10v analog on A1 and no parameters were changed only the motor. The motor nameplate is 100% identical.
Is there a parameter to scale the input vs output? How will I tune this without getting into the PLC output scalar (password protected by OEM)