Altivar 61 Modbus connection

Anonymous user · ‎2014-10-29

So, I have my Schneider Electric SmartStruxure Building Operation Automation Server....and I have my Schneider Electric Altivar 61 VSD...I even have my Schneider Electric Altivar 61 Modbus Widget that was created by someone clever....but do I have communication?

Not

One

Bit

(See what I did there? Bit? 10111110000? Ha haa haa *cough*...Ahem.)

ANYway.

Does anyone have any idea how to get a modbus run signal, sent from the SBO automation server, to actually physically start the altivar 61 VSD? We've tried power cycling, polarity swapping/verification, mucking about with signals/settings, verifying the modbus signal addresses etc and so forth. No luck. The VSD speed comes though to the VSD, but it still won't start.

The ATV61 power object is attached for reference.

Thank you for your help!

Renae M@

Anonymous user · ‎2015-03-09

A big thank you to those who responded. Turns out the issue is that our VSDs will not accept signals from both hardwired and modbus connections at the same time. We had an AOM switch hardwired to the 'start' contacts on the VSD so when in manual the VSD would start. This meant that the VSD would not ever accept a signal from the modbus to start.

Our solution for the future is probably going to be to use modbus as a monitoring system only, never for control. All control and critical monitoring will be via hardwired points.

See Answer In Context

CraigEl · ‎2014-10-29

Hi Renae

I'm pretty sure you will have to set some parameters in the drive to tell it to start from the modbus signal. I'll see if i can find what those might be by trawling through a manual or two.

CraigEl · ‎2014-10-29

Page 16 of the attached should guide you to what you need I think.

FlatBeach · ‎2014-10-30

I have uploaded this guide to the community. This is what we do in denmark to get it to work.

CraigEl · ‎2014-10-30

Nice one Johnny

Anonymous user · ‎2015-03-09

A big thank you to those who responded. Turns out the issue is that our VSDs will not accept signals from both hardwired and modbus connections at the same time. We had an AOM switch hardwired to the 'start' contacts on the VSD so when in manual the VSD would start. This meant that the VSD would not ever accept a signal from the modbus to start.

Our solution for the future is probably going to be to use modbus as a monitoring system only, never for control. All control and critical monitoring will be via hardwired points.

Sergio77 · ‎2023-04-17

is this manual valid for ATV 630?