Welcome to Part 5 and the final lesson
of “How to control a VFD with a PLC”.
We have created this series of lessons
discussing the steps to configure and program communication
between a Rockwell ControlLogix PLC and a Siemens VFD.
As a prerequisite, please watch lessons 1 to 4.
We have provided the links to these lessons in the description area.
Here at RealPars,
we love making videos that help you to discover new and exciting topics,
so if you enjoy viewing this video as much as we enjoyed making it,
click the like button below.
Remember to click subscribe and the little bell
and you’ll receive notifications of new RealPars videos
when they become available,
so you’ll never miss another one!
In Part 5, this video, we will pick up where we left off in part 4
to complete the VFD configuration
and the communication path between the gateway
and the Rockwell ControlLogix processor.
In the previous part, I left off right after completing the Motor
and its nameplate data configuration.
Let’s pick up from the last step of the motor configuration
where we had configured the “Important parameters” of the motor.
In the “Important parameters” display, as you can see,
I set some of important parameters
according to the motor’s datasheet.
I continued by selecting the “Next” button
and the “Pump Configuration Summary” display appeared.
I selected the “Finish” button to continue.
Over the next few steps,
we will be configuring the parameters we used in the Parts 1 and 2
to allow the VFD to communicate with the ControlLogix 5000 PLC.
You can learn more about the VFD parameters and their usage
via the “SINAMICS S120/S150” manual.
We have put the link to this manual in the description
if you are watching this video on YouTube
or any other social media platform.
Now, under the “Drives” folder,
I expand the “RealPars_Drive_1”.
Then I double click on “Communication” item.
Within the “Receive direction” tab I will click into the “PZD 2”
and click in the white area next to the “hex” box,
Then I open the “RealPars_Drive_1” menu
to select “p1070[0], the Main Setpoint”.
Next, under the “Transmit direction” tab,
I will enter a few more parameters.
First I click into the “PZD 1”.
Then I locate r2089[0],
the “send binector-connector convertor status word,
Status word 1” and select it by clicking on it.
If you open the “SINAMICS S120/S150” Parameter Manual,
and search for the r2089[0],
you will find out where the ZSW word naming derives from.
From previous parts of this video series,
you can remember the ZSW1 status words in the spreadsheet,
which were sent from the Siemens VFD
toward the Rockwell PLC via the HMS Anybus Gateway.
I will complete the remaining entries here in the “Transmit direction” Tab.
I click into the “PZD 2”.
Then I select “Further interconnections”.
I locate r63[0], the “Actual Speed Value, Unsmoothed” entry
which represents the “N_ACT” communication tag from the spreadsheet.
Then I hit OK.
I click into the “PZD 3”.
I open the “RealPars_Drive_1” menu
to locate r68[0], the “Absolute Current Actual Value, Unsmoothed”.
This is the “I_ACT” tag from the spreadsheet.
I then select it by clicking on it.
For the next word, I click into the “PZD 4”.
Then I select “Further interconnections”.
I scroll down until I select “r80[0],
the Torque Actual Value, Unsmoothed”.
It is the “M_ACT” tag from the spreadsheet.
To continue, I hit OK.
I click into the “PZD 5”. Then I select “Further Interconnections”.
I find and expand “r63[0]”.
Then I select r63[1], the “Actual Speed Value, Smoothed” with p0045”.
This parameter represents the “N_ACT_SMOOTH” communication tag from the list.
To continue I press OK.
I click into the “PZD 6”.
Then I open the “Realpars_Drive_1” menu to locate r68[1],
the “Absolute Current Actual Value, Smoothed with p0045”.
This word represents the “I_ACT_SMOOTH” from the spreadsheet tags.
I select it by clicking on it.
I click into the “PZD 7”. Then I select “Further Interconnections”.
I scroll down to find and expand “r80[0]”.
Then I select r80[1], the “Torque Actual Value, Smoothed with p0045”.
This entry represents the “M_ACT_SMOOTH” communication tag name.
To continue I hit OK.
Finally, for the last parameter,
I click into the “PZD 8”. Then I select “Further interconnections”.
I scroll down to find and expand “r82[0]”.
Then I select r82[1], the “Active Power Actual Value, Smoothed with p0045”.
This entry represents the “P_ACT_SMOOTH” communication tag.
To continue I press OK.
Now on the final tab, “Binector connector converter”,
you can see that the first slot, “Status word 1 sources”,
Automatically changes to “p2051[0]”.
We have completed the configuration of the PZD (or process data) interface selection
for PROFIBUS communication to the HMS module.
This concludes the last video of this series,
ControlLogix PLC and Siemens VFD Communication Part 5.
I hope you have enjoyed learning what will support you in your upcoming project.
Want to learn PLC programming in an easy to understand format
and take your career to the next level?
Head on over to realpars.com