How to set Ethernet communication timeout using an option card on ATV630 ?
Today, I like to talk about the ATV630 Variable Speed Drive Ethernet communication timeout ...
... when using an option card installed on drive instead of the embedded Ethernet port.
You can see the ATV630 Drive I have is ...
... got an embedded Ethernet port, which is in all ATV630.
And then we also installed a VW3A3720 option card on this drive.
What I'm going to describe also complies with the ATV320.
The VW3A3721 option card as well is the same set up for both Ethernet option cards on the ATV630.
Under the Ethernet option card, so I am under the setting for the 'Modbus TCP/EtherNet IP' option card in 'Slot A'.
By default, the drive will be in 'EtherNet / IP' mode and you can see that there is no timeout adjustment here.
However, if you click to the 'Modbus TCP' settings there is a 'Holdup Time'.
This is the timeout adjustment for the option card communication channel.
Regardless if the using Modbus TCP or EtherNet / IP on the option card, this is the time for the timeout.
So the drive has to see a communication on that channel,
within this time period or it will trip and generate an error.
To adjust that timeout you will go to the Modbus TCP settings make whatever change you wanted to have on the timeout.
Then verify and confirm the change by clicking on the check box.
Once you have done that, that new timeout will be active for both Modbus TCP and EtherNet / IP.
So you can continue to program the drive if you are using Modbus TCP or click to the EtherNet / IP and make your adjustment there.
I do want to point out the note that mentions that the PLC must be stopped before changes can is taking into account ...
... and also that the drive has to be restarted after the changes are made.
If the PLC is already connected to the drive even if it's not in control,
it will prevent the drive changes from being saved.
So you need to stop your PLC or configured with the PLC not connected.
Then, once change you have made you have to reset the drive which is to power cycle or a reset through SoMove.
I point that again that the settings for the embedded Ethernet port only apply to the embedded communication port.
Changes made to this port don't impact the Modbus TCP option card ...
... and changes made under the option card don't impact the embedded Ethernet port.
Once you have made any change that you want, you do have to power cycle the drive or reset it.
Since I am connected to my drive, I can do that quicker way and I can select a 'Restart device'.
This will reboot the CPU without requiring a full power cycle.
That can save time when you are working on a very large drive, you don't have to wait for the DC bus to be completely bleed off.
So we go and set OK.
You see that the drive reboots.
The drive will take a second to reset the CPU and then my change will be in effect.
I hope this helps. Please provide any comments and feedback and we will try to make your life easier with this drive.
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