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Communicating CPU224 with Frequency Inverter NORDAC500e

11/4/2010 8:23 PM	Rate (0)
abflussreiniger Posts: 3 Rating: (0)	Dear friends, There is an asynchronous motor whose speed is controlled by NORDAC500e frequency inverter. I would like to add this speed control to CPU224. Later I may control the speed from a HMI. In the attachment I sent the connections of this FI. Moreover, what kind of program should I write for the control? Thank you from now, Attachment inverter I-O.jpg (263 Downloads)
abflussreiniger Posts: 3 Rating: (0)
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11/4/2010 9:43 PM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	Hello, Using of http://support.automation.siemens.com/WW/view/en/21763310 plus NORDAC 500e manual could do the "trick". best regards, Hristo Mihalev

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11/6/2010 11:17 AM	Rate (0)
Tomy Master Platinum Member Joined: 5/4/2009 Last visit: 1/1/2026 Posts: 916 Rating: (40)	Dear abflusserreiniger... If you want to control the drive via analog signal, you can order CPU222 with EM232(2AQ) it will do the job for you. You have another option, if thereferred drive has modbus slave capability, then you can use USS_Library instruction to achieve your goal. If you have further question I will be more than happy to help you. Have luck. Tomy.
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11/19/2010 7:26 PM	Rate (0)
abflussreiniger Posts: 3 Rating: (0)	Dear Tomy, Thank you for your information. Hardware section is OK, could you help me, what will the Step7 program look like while the parameters are as follows: AIW0: Asynchronous motor 1 speed information AIW2:Asynchronous motor 2 speed information AQW2:Asynchronous motor 1 speed command AQW4:Asynchronous motor 1 speed command
abflussreiniger Posts: 3 Rating: (0)
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