Yaskawa Sigma II Servo Drive

[Giridhar_Rajan]

Hi all,

I have a Yaskawa SGDH Sigma II Servo drive package. I wish to communicate with it using the PC's Serial port. The drive directly accepts one axis motion commands. I wish to know the details of the communication protocol that it uses and the list of commands that it accepts. I am using LabVIEW for development. Are there any Dlls available?

Regards,

Giridhar Rajan

Cruiser Controls

Mumbai, India

[Brian_Beal]

Which motion controller is attached to that drive?  Doesn't Yaskawa offer the syntax for it?   I have used Labview with a LegendMC, which I believe uses the SMC 3010.  I used ethernet communications, but the commands were the same for the 232 port.  The SMC 3010 is really a Galil motion controller that Yaskawa puts their name on.

[Giridhar_Rajan]

Hi Brian,

Thanks for your reply. The motion control is inbuilt in the drive itself. I don't have any motion contoller, connected to the drive. The drive itself can accept position commands via the serial port and then execute them. It has connectors for encoder f/b too. I am not able to find the syntax on the internet. I had sent a mail to yaskawa support and got no reply till now. Somebody please help.

Regards,

Giridhar Rajan

Automation Engineer, Design

Cruiser Controls

Mumbai, India

[Brian_Beal]

All I can recommend is to try the commands that the LegendMC uses.  I don't have any documentation with me, but I believe the following should produce a move:

SH (turn on servo)

PA:1000 (move to absolute position of 1000 counts)

BG (begin motion)

Try them one at a time.  You should get a blinking cursor back if everything is OK.  If it doesn't like the command, a "?" will be sent back.

[Brian_Beal]

Check this out: http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5QVLZC/$file/Application%20Modules%20Catalog.pdf#...

As you can see, there are a variety of motion controllers that can attach to the Sigma II drive.  This documument also has some serial command examples.

[P.Cixous]

I use a SGDH sigma II with a NS600,

with a hyper terminal:

bits/s=9600
given bits=7
evenness=even
stop bits=1
flux control=none

to control it, you can use these commands:

YSVON           on
YSVOFF         off
YJOGPXXX    free runing in the positive way ( xxx always >0)
YJOGNXXX    free runing in the negative way ( xxx always >0)YSPDXXX      speed control ( xxx always >0)
YPOSIXXX     position control ( xxx ><0)
YPOSAXXX    other position control  ( xxx ><0)
ST                  start in speed control
STOP
...
Y is the number (the name) given to your SGDH.
XXX is the value of the position or the speed (beware of the speed unit).
when you give a speed with SPD you must give a position with POSI or POSA and then ST.

[Giridhar_Rajan]

Hi,

Thanks a lot for your reply, Brian and Cixous . This info should do I guess. This forum rocks.

Regards,

Giridhar Rajan

Automation Engineer, Design

Cruiser Controls

Mumbai, India

[ChadE]

You may also want to check out the PCI-7390 with direct connectivity to Yaskawa Sigma II. 

NI PCI-7390 4-Axis Controller for PCI with Isolation

Regards,

[Bipin]

Hi,

Similar to PCI-7390, are there any PXI version to connect to Yaskawa drive.

Best Regards,

Bipin

[jLo]

Hi Bipin,

There is no PXI version of the PCI-7390.

Justin