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Drive keeps in A0051 - Pre-OP-Mode

Drive keeps in A0051 - Pre-OP-Mode

alink
New Contributor

Hello,

if there isn't connected an engine to a drive, after power on, the ctrlX Drive keeps in "A0051OPmode" and EtherCat "Pre-OP" often.

alink_0-1721226982051.png

Normally, if there isn't an engine connected and PLC starts, PLC will check if there is an engine (and what type) to load right engine parameters or to set it into "PA" (parking axis).

In the picture above, the process worked right, command for "PA" was set and drive was switched back to "OM". But EtcherCat keeps in Pre-OP and doesn't switch to "OP".

The only way to fix it is to set whole ctrlX-system (ctrlX-core) to setup and then back to OP, then drive is in OP as well.

What's the reason for drive doesn't switch to ready and OP, how to fix that?

Steps to set drive in OP:

first: switch to "setup"

alink_1-1721227401916.png

then: back to "OP"

alink_2-1721227448827.png

Now, it works

alink_3-1721227470991.png

Axis (still no engine connected) is in "A0014 parking axis" and OP

alink_4-1721227588364.png

Thanks for help

 

 

5 REPLIES 5

Drives_Uwe
Community Moderator
Community Moderator

As alternative one can use the "Simulation" mode as configuration inside the drive instead of the "Parking axis" command.

Drives_Uwe_0-1721320335812.png

 

Thanks for reply, but PA is not the issue. PA is working fine.

The problem is:

On power on and no engine is connected with the drive, EtherCat communication of the drive keeps in Pre-OP without any reason or error. The only way to set it in OP is via ctrlX-webpage switching to setup and back to OP. And it doesn't matter if an engine is connected or not.

If an engine is connected at power on EtherCat is in OP. If you then disconnect an engine there are no issues, switching axis to PA and back is no problem and works perfect.

I don't understand why drive keeps in Pre-OP but is there a way to restart master communication? Switching to CM clear error back to OM doesn't help.

alink_0-1721378491390.png

 

Hi, I think the behaviour is based on the configuration at this place.

Siva_0-1721806671712.png

May be you can try enabling, "Slaves have to reach the master state" and check. Also you can define the Master state after system request "Operating/ Setup".

Hope this setting solves your problem

alink
New Contributor

Thanks for hint, tested this setting. But there is no other effect to this topic.

alink_0-1722339657241.png

What to see with ctrlX I/O is: Status message: 0x0026: inconsist settings

Would be nice to get info what is inconsist.

The strange thing: If status is set back to INIT manually then, without doing any other thing, reaching OP is no issue, no error, no inconsist setting, nothing.

Axis is set as Parking Axis and everything is as it should be.

The issue "inconsist settings" is always and just after power on with no connected engine then the drive keeps in Pre-OP with this message.

 

CodeShepherd
Community Moderator
Community Moderator

Please check parameter S-0-0423 as it is a list of invalid parameter.

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