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Hello everybody! Please I need some help!
I´m trying to command a G120 with  a V350 via modbus (over Rs485 - two wires). The communication its ok, but I can´t change to Run status the inverter. 

The Starter display the following:

image.thumb.png.a9808e25a9e58e804256042008738b2f.png

image.thumb.png.7853a714b90d9b912fac227e2ae0dcdb.png


My program is the following

First: I write 0x47E in the parameter 40100

image.png.120bc717ccf8967959b8168afb94fc72.png

Seond: I write the Main Set point in the parameter 40101

image.png.e2834482a3dd0f555fc531240187815e.png

Third: I write the command 0x47F in the parameter 40100

image.png.29d97b1764ed2bcc3276a4fe634b351a.png

if someone can send me an example or give me some help, I will be very grateful!!

Thanks a lot!!

Mario

 

 

image.png

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Hi,

Some quastions:

1) Is it speed and 8E1 (simens default) settings  commisioned corectly in V350 com settings?

 2) Is it G120 setpoint channel sw. = Modbus, Control channel = Modbus?

3) Is it G120 correctly commisioned and all self autotune done and all autotune settings written to the drive . Drive do not allow to net control before autotune done (default).

4) What is with modbus status when command was send?

 

maybe this document is useful:

https://static1.squarespace.com/static/5357e4cfe4b02760ee8a9506/t/53ecf6f2e4b03c7a36fcfed3/1408038642976/MicroBridge+Modbus+Plus+to+G120+App+Note.pdf

chapter Verifying the Installation

 

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On 10/10/2020 at 11:41 PM, Joe Tauser said:

Do you have the wired Enable signal on the drive terminals connected (DI0)?

Joe T.

Hello Joe, DIO es connected to a sensor, The signal is ok I try with DI0 in ´1´ or ´0´ but the result is the same, the inverter is stopped.

image.png.442da528486e2d918a438978dd3ecf79.png

 

All the inputs have the right connection and I chek if the signals are OK.

All is ok, but the problem persist.... 😞

 

 

 

image.png

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On 10/10/2020 at 4:35 PM, kratmel said:

Hi,

Some quastions:

1) Is it speed and 8E1 (simens default) settings  commisioned corectly in V350 com settings?

 2) Is it G120 setpoint channel sw. = Modbus, Control channel = Modbus?

3) Is it G120 correctly commisioned and all self autotune done and all autotune settings written to the drive . Drive do not allow to net control before autotune done (default).

4) What is with modbus status when command was send?

 

maybe this document is useful:

https://static1.squarespace.com/static/5357e4cfe4b02760ee8a9506/t/53ecf6f2e4b03c7a36fcfed3/1408038642976/MicroBridge+Modbus+Plus+to+G120+App+Note.pdf

chapter Verifying the Installation

 

Hi!,

First of all, thanks for your time!. I respond your questions:

1) Is it speed and 8E1 (simens default) settings  commisioned corectly in V350 com settings?

The comunication it´s ok because I can write and read diffents parameters (I set 8 bits, Even and  1 stop bit)

 2) Is it G120 setpoint channel sw. = Modbus, Control channel = Modbus?

I can´t find the control channel parameter.

3) Is it G120 correctly commisioned and all self autotune done and all autotune settings written to the drive . Drive do not allow to net control before autotune done (default).

Autotune is done

4) What is with modbus status when command was send?

The modbus Status is 0 (communication OK

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Hi, in

Verifying the Installation

chapter of document in my above post present Modbus registers that can be sw. OFF1 bit directly.

Please try to do this for test - it is the same idea as Joe provide with DI0 but via software.

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On 10/13/2020 at 3:30 PM, kratmel said:

Hi, in

Verifying the Installation

chapter of document in my above post present Modbus registers that can be sw. OFF1 bit directly.

Please try to do this for test - it is the same idea as Joe provide with DI0 but via software.

Hello!

I try set the parameter 40003 ( number 2 in visilogic) but the communication state change to "5". Another question, the "big endian" formtat, used by Siemens, could be  the origin of the problem?

Thanks for your time and help!

 

Best regards

Mario

 

 

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Hello People!

I solved the problem!!!! It was a mistake in the stw confiuration, I correct this with the values of the manual:

image.png.a8a30e5c49cbc0aaf5b92fe8c46519e4.png

Thank you for your help and time! If in the future I can help with something, please count on me!

Best Regards

 

Mario

 

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On 10/16/2020 at 6:59 PM, kratmel said:

Great news. 

If it possible - please select by red ink parameters in table that you change for rectify problem. 

And this table can be useful for another forum users.

 

Hello,

I can solve my problem setting the G120 parameteres like the information of the table (parameteres marked in yellow) 

image.png.722c7e10be5e4ecdcfb51053e9232c5f.png

image.png.7ab1a0c1784c5a15794c613f8b8a29bc.png

image.png.6a7fd0f9fc2ff6f50bb0f1fb8c966c22.png

image.png.1822d830554e0247be1bee3ab690863c.png

Best regards!

 

Mario

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