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Comunication between S7-300 and V20 sinamics.

Created by: DavidSerrano at: 4/14/2014 8:58 AM (4 Replies)

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4/14/2014 8:58 AM	Rate (0)
DavidSerrano Posts: 9 Rating: (0)	Hello guys. I have a problem for run motor with v20 for modbus rtu networks, I am getting comunicating between plc and v20 inverter, I change de frequency, i read the frecuency when run de motor in manual, but I can´t run the motor, I have written bits in nº register 40100 STW, I put to true bit 0 and bit 10, but then motor not run. I have attached Stw word, whats bits do i have put to true?, Do you help me? Thank you so much. Attachment stw_word.jpg (1146 Downloads)
DavidSerrano Posts: 9 Rating: (0)
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4/14/2014 10:33 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 11/8/2024 Posts: 5935 Rating: (815)	Hello David, firstly check taking the correct connection makro CN011 (Modbus RTU). Then send in STW1 047E hex. By changing to 047F hexthe drive should switch on and turn with the value sent as setpoint. Please find section 5.5.1.3. and6.2. in the V20s manual. (http://support.automation.siemens.com/WW/view/en/67267484)
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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4/14/2014 12:32 PM	Rate (0)
DavidSerrano Posts: 9 Rating: (0)	Thank you for your answer TechTeam, I have got v20 work, when I have written 16#47F and 16#47E in parameter 40100 (STW). Where did you have see the configuration of WST word in manual?, I don´t find it. Thank you again.
DavidSerrano Posts: 9 Rating: (0)
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4/14/2014 1:49 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 11/8/2024 Posts: 5935 Rating: (815)	Hello, it is a common agreement the first seven bits + bit 10of control word 1. It is with the PLC comunication,Profibus, Profinetalso. The declaration of the control word 1 is found in r54.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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6/11/2014 7:35 AM	Rate (0)
Hit_Formula Experienced Member Joined: 2/20/2010 Last visit: 9/21/2024 Posts: 104 Rating: (7)	Dear David, How could you establish communication of S7-300 CPU and V20 drive? Are you using CP341 module? if yes then can you please hint me for that beacuse here I am not able to do communication between CP341 module to V20 drive communication.

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