AC500-ECO PID Control with ACS550 VFD
Hello
IM working on a Water Pump project,and what they asking me to do is to control the speed of AC550 VFD According to presser (That's to control the flow of the water and to be away from high presser )
So When i press run button the VFD should run and the speed according to the analog presser value , if this value increase the VFD Speed Should decrease .
am using ac500-eco and AI561 AN AO561 (Analog input and Analog output ) .
is this possible to do ?
and if there is any Function Block can do that ?
if its better to make an PID Control or just convert the analog input and send it to analog output to the vfd ?
IM working on a Water Pump project,and what they asking me to do is to control the speed of AC550 VFD According to presser (That's to control the flow of the water and to be away from high presser )
So When i press run button the VFD should run and the speed according to the analog presser value , if this value increase the VFD Speed Should decrease .
am using ac500-eco and AI561 AN AO561 (Analog input and Analog output ) .
is this possible to do ?
and if there is any Function Block can do that ?
if its better to make an PID Control or just convert the analog input and send it to analog output to the vfd ?
Asked 6 months ago
Answers
0
Greetings,
Not sure why you want to use the AC500 PLC to do the PID when the ACS550 has a PID built inside the drive.
Before you get too involved with the PLC, get out your ACS550 manual and read all about the "PID Control macro"
For PID control you will be using the following Parameter's:
1106
(1301, 1303, 3001)
1107, 1108
2001, 2002, (2007, 2008)
4016, 4018, 4019
If by chance you needed to communicate with the ACS550 to grab data for your process. I would do it via RS485 which comes standard on the drive. There are examples of PLC function blocks to communicate with the ACS550 on ABB's web site.
If your process needs a fast response I would stay inside the drive and let it's PID do the job.
If your process needs to respond to more than One Feedback Loop then it would require a external PLC.
Hope that helps.
Not sure why you want to use the AC500 PLC to do the PID when the ACS550 has a PID built inside the drive.
Before you get too involved with the PLC, get out your ACS550 manual and read all about the "PID Control macro"
For PID control you will be using the following Parameter's:
1106
(1301, 1303, 3001)
1107, 1108
2001, 2002, (2007, 2008)
4016, 4018, 4019
If by chance you needed to communicate with the ACS550 to grab data for your process. I would do it via RS485 which comes standard on the drive. There are examples of PLC function blocks to communicate with the ACS550 on ABB's web site.
If your process needs a fast response I would stay inside the drive and let it's PID do the job.
If your process needs to respond to more than One Feedback Loop then it would require a external PLC.
Hope that helps.
Answered 6 months ago
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