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autotuning

PLC – PID auto-tuning function for temperature control

Users may not be familiar with a new temperature environment. In this case,  its advisable to use the PID auto-tuning functionality to improve the PID parameters settings. To do so, selecting auto-tuning (S3+4 = K3) for an initial adjustment is suggested. After initial tuning is completed, the instruction will auto modify control mode to the mode exclusively for adjusted temperature (S3+4 = K4). In this example, the control environment is a heating oven. See the example program below:

Picture 1

Results of initial auto-tuning:

Picture 2Picture 3

Results of using adjusted parameters generated by initial auto-tuning function:

Picture 4

From the figure above, we can see that the temperature control after auto-tuning is working fine and it spent only approximately 20 minutes for the control. Next, we modify the target temperature from 80°C to 100°C and obtain the result below:

Picture 5

From the result above, we can see that when the parameter is 100°C, temperature control works fine and costs only 20 minutes same as that in 80°C.

If you want to test it right away, here is the PLC program ready to download:

PID Autotining PLC program example

We hope this tool is useful for all of you and make your work better. Enjoy it !

ASDA-A2 and ASDA-B2 motor tuning procedure

As many of you should know, to tune a servo motor is not a piece of cake.
To have a good tune, you have to take care of the load, the inertia, the gearbox, etc..

To help you in this task, Delta provide different kind of tools.

1. ASDA-Sizing
This software is really useful to calculate the interta and the Torque needed of your system.
With this tool you can calculate the power of the motor needed and avoid bad experiences in customer’s hose

You can dowload it for free (as usual) on Delta’s web page.
But If you already installed ASDA Soft, check your computer, because probably it would be there.
ASDA-MSizing v1.04

2. Autotuning
Depending of the drive the ASDA-Soft have different autotuning tools.
On the video, we adjust (without load) some ASDA-B servodrive

On the other side, for the ASDA-A2 servodrives, our Service team, did the following PDF to help you in that task.
Simple TUning ASDA-A2&B2

Good tuning for everybody!

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