Yaskawa
eLearning
This video will provide an introduction to Yaskawa's DriveWorksEZ (DWEZ) software.
This includes an overview of the DWEZ program itself,
how to enable DWEZ on a drive,
parameters associated with DWEZ,
the purpose of the ID/serial number which must be entered during installation,
and the available connection types.
Now before we go too far down the rabbit hole you may find yourself wondering
"Well why do i need DWEZ in the first place?"
"What are the benefits?"
"What can it do?"
DriveWorksEZ is a function block based software tool
which will allow you to create custom logic and mathematical functions
within an A1000, V1000, or U1000 drive.
If you have an application which requires more
functionality than the standard drive parameters,
DWEZ will be the software tool for you.
Here's an application example which will
clarify when DWEZ can be utilized and also shows how simple it is to use.
Let's say we have a drive on a machine.
The machine has a Run and an Interlock.
When the two switches are closed, then the drive will run forward.
The machine control panel also has an override.
When this switch is active the drive will run forward,
despite the position of the other two switches.
For this we can drag three digital inputs onto our blank page.
So I'm going to grab Digital Input One, Digital Input Two, and Digital Input Three.
To make the program easier to read,
you can name these digital inputs.
I will name Digital Input One = Run,
Digital Input Two = Interlock,
and Digital Input Three = Override.
The Run and Interlock inputs must both be true
for the drive to run forward.
So therefore, we would want to use an AND block.
The output of the AND block will be connected to an OR block.
All you need to do is drag connections from your digital inputs to the input of the AND block,
the output of the AND block to your OR block,
and then our Digital Input Three, which is our Override,
to the input of OR block.
The output of the OR block is going to get connected to a Forward command block.
Now you'll start to see what we're building here.
If the Run and Interlock are
both closed, or the Override is closed, then the drive will run forward.
Let's start working on the frequency reference next.
For this let's say the application has an analog input on the machine.
So to do that we will simply drag, let's say, analog input A1
on to our page.
There is also a need to sometimes speed up the drive with the keypad.
The user would like a keypad input on the drive to add to the existing analog reference.
With DWEZ, this can be accomplished with ease.
Drag a keypad input on to the page.
Grab an ADD block
and drag that onto the page.
Connect the analog input and the keypad input to the ADD block.
The output of the ADD block will be connected to the frequency command.
Label the blocks to make future reference to the program easier.
Once you have your program created you simply compile the program,
download it to the drive,
and then enable DWEZ.
We'll dive more into detail how to accomplish this later.
It is important to note that there are two versions of DWEZ software,
Standard and Pro.
The two versions work identically.
The differences lies in how
many function blocks are available and how many connections are
allowed in your DWEZ program.
Also, notice how the number of block and connections changes with the type of
drive being used.
V1000 will have the least blocks and available connections.
While the A1000 and U1000 has higher functionality.
During this course we'll be using an A1000 drive.
We will start out by using the Standard version,
which you should have installed while watching the previous video.
As we start getting in the deeper stuff and
more complex applications, it is necessary to upgrade to the Pro version,
primarily due to the limited number of connections available in the Standard version.
If you are interested in DWEZ Pro,
you should get in contact with your sales rep. or distributor.
This will help guide you through the certification process.
Remember DWEZ is available as Standard in the V1000, A1000, and U1000 drives.
Since DWEZ is built into these drives,
you need to enable the DWEZ function in the drive.
Parameter A1-07 is where this is done.
By default A1-07 is equal to "0" (Disabled).
meaning there could be a DWEZ program loaded into the drive but it is not
active since it is
well you know disabled.
You can enable DWEZ by setting this to a 1.
You can also have the ability to enable DWEZ on-the-fly
by putting this is setting to a "2",
and then programming a digital input to 9F, which will enable or disable DWEZ,
depending on the switches position.
However, there is no need to set parameter A1-07 beforehand.
When you write your DWEZ program to the drive, A1-07 will be set to "1" automatically.
While we're talking about parameters
let's mention that the Q parameters in the drive are reserved for DWEZ.
When you have a DWEZ program written to a drive,
you will see the Modified Constants list will be updated
and include some Q parameters that differ from the default
A standard two or three wire initialization will clear out your Q parameters.
So be careful before clearing out a drive
as it will most likely result in improper program operation.
When DWEZ was installed you had to enter the ID or serial number
provided in the email from Yaskawa.
This is because any program which you create in DWEZ is considered
intellectual property.
DWEZ will only let you open a project file which was
created with the same ID which you have on your PC.
You can verify the ID by looking at the Help/About DriveWorksEZ
and you will find the ID listed here.
It is necessary to provide this ID to Tech Support when seeking assistance.
It's also important to note that Tech Support can help with function block
behavior and connection issues.
But they won't be able to help you out in
assisting you building a program or debugging your program.
There are a number of ways in which you can connect your computer
to the drive using DWEZ.
These are listed under File and by selecting DWEZ Properties.
So here you can see there's RS-232, USB, and Ethernet.
RS-232 will most likely be used when you're connecting to a V1000 drive.
The V1000 drive does not have a USB port.
Since most new computers don't have a 232 or serial connection on them,
you'll have to get an adapter and install a driver for that adapter.
USB would be the preferred method for the A1000 and U1000 drive.
Both of those drives have a built-in USB port.
Lastly, you can also connect to ethernet.
So this will require an ethernet option card installed onto the drive.
Be sure to follow along in the next video to learn about DWEZ basics.