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Old June 13th, 2014, 05:40 AM   #1
antonydias
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Question Unable to control vlt2800 via profibus using s7300


I am unable to control an Danfoss inverter VLT 2800 via profibus using Siemens S7300 PLC.
Communication between PLC & VLT 2800 is established using Type PPO 3(I/O address 256).

I programmed as follows

L W#16#047E
T PQW 256
L W#16#4000
T PQW 258

But the inverter is not getting start commands.

Kindly guide
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Old June 13th, 2014, 09:48 AM   #2
PLC
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16#047F enables the drive - bit 0 on
16#047E stops the drive - bit 0 off
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Old June 13th, 2014, 10:37 AM   #3
antonydias
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Thanks, but i tried W#16#047F but still i am unable to start the inverter
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Old June 13th, 2014, 10:54 AM   #4
KalleOlsen
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What do you read in the status word from the drive?
You must decipher the hex code and relate it to the individual status bits.

Kalle
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Old June 14th, 2014, 08:29 AM   #5
antonydias
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I was able to start the inverter,some parameters of the danfoss inverter had to be changed,

Thanks for the support
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Old June 14th, 2014, 08:40 AM   #6
osmanmom
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1.) Terminal 12 and 27 link ?

2.) Parameter 512

3.) W#16#047C

please manual user.
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Old September 22nd, 2022, 06:29 AM   #7
Imrul
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Dear Sir,
I want to know How I make "configuration telegram system" in VLT 2800 with S7 314c 2PN/DP
We complete Hardware configuration by GSD

But could n't complete LAD(PIW718 and PQW 718) as well as Parameter setup in VLT2800.


Kindly assist me regarding my issue as urgent basis
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Old September 22nd, 2022, 08:29 AM   #8
osmanmom
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i forgot how to do it ,,

any snap shot picture on the hardware
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Old September 22nd, 2022, 10:53 AM   #9
Imrul
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Dear sir,
As per your request, I have attached here the print screen of HW and LAd design.
I hope you will check and advise me, how I progress my learning about VLT2800 with S7 300.
I don't understand the program
If you want my sample program more undersigning I will send you.
For your kind information program file size is more than 5MB so it need send through email.
Attached Files
File Type: docx Profibus LAD Programing Problem.docx (334.2 KB, 3 views)
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Old September 23rd, 2022, 09:47 AM   #10
osmanmom
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please read this manual user

https://files.danfoss.com/download/Drives/MG27E402.pdf


https://files.danfoss.com/download/Drives/MG90A502.pdf
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