SMD-7615 Can´t read Faults...is this normal?

[666mille]

I have 2 SMD-7615 ethernet stepper motor drives. I have a problem to read out any error message from the device over invoke node. Is this normal?

Over invoke node Axis->Read Faults I get no error. Over Axis->Get Last Error I get no error.

But I see an error if I read out Axis->Read Status->Fault Occured. This bit is true. The same from Axis->Read Motion I/O->Drive Fault Active this bit is also true.

But I will know which error occurs without looking on the two status LED´s on the front of the device.

Has there anybody an idea what do I wrong?

Thank you very much!

kind regads

Holger

[DesasterMaster]

Hi Holger,

what motion controller are you using?

Have you tried the "Read Error Message" VI from the motion palette?

Best wishes

[666mille]

Hi Dennis,

thx for the reply.

I´m using the SMD-7615 Stepper Motor controller.

I have no "Read Error Message" VI on the Softmotion palette.

regards

Holger

[DesasterMaster]

Hi Holger,

I am sorry, the "Read Error Message" is a VI in the Palette for the 73xx Devices, not for Softmotion.

Have you tried the "Read Modal Error" Method?

Best wishes

[Karl-G]

Holger,

Unfortunately, the SMD-761x Ethernet stepper drives do not have a SoftMotion method available to read back specifically which fault has occurred. The full list of supported properties and methods on this axis type can be found at the link below:

https://zone.ni.com/reference/en-XX/help/371093U-01/nimclvfb/dt/eng/generated/ethernetpropmethod/

Karl

[666mille]

Hi Karl,

thx for the answer! Thats good to know. But this must be explained in the datasheet from the Stepper drive, too. This is an important information which error has occured. I have thougt, that all errors which are indicated by the front led´s, can be read out.

On the other hand i´m confused, because with the "NI Stepper Configuration Utility" it is possible to read out the last 10 errors.

So it must be possible to get the information.

Do have any experience about that? I don´t want to wireshark the ethernet bus.

Holger

[666mille]

Ok.....after 2 hours work I have written my own Sub-Vi to read out the last 8 error faults.

It´s a short UDP message. I have wireshark the ethernet traffic with the stepper configuration utility.

THX on all

regards

Holger