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I2t motor model calculation CU S120

Created by: joel bitar at: 5/3/2013 7:36 AM (2 Replies)

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5/3/2013 7:36 AM	Rate (0)
joel bitar Posts: 1 Rating: (0)	Hi, How is the I2t calculated in S120 CU? I have no KTY sensor or other temperature sensor more than a PTC for trip and alarm. The reason I need to know is that I need to know which parameter that is used to do the I2t motor model calculation. And I would also like to know which parameter is using the 12t calculation, such as "motor utilization". The driven object is An AC-servo, permanent magnet synch. //Joel
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5/3/2013 8:15 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 10/11/2024 Posts: 5911 Rating: (809)	Hello, it`s parameter p612.0 = HIGH. Dependency: Refer to: r0034, p0604, p0605, p0606, p0611, p0615, p0617, p0618, p0619, p0625, p0626, p0627, p0628 see list manual parameter description: http://support.automation.siemens.com/WW/view/en/68041075/0/en Further I recommend to use FW4.5 HF6 or higher. Because there areextended temperatur models (also for standstill and so on).
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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12/5/2013 11:01 AM	Rate (0)
Graeme Platinum Member Joined: 6/4/2008 Last visit: 10/10/2024 Posts: 1502 Rating: (324)	Hi TechTeam, Does this motorthermal model improvment apply to Servomotors or only to Induction motors? I am using 1FK motors, and by default the i2t calculation is turned off (p612.0) I am trying to justify to a machine builder the benefits of upgrading Simotion Firmware from 4.2 to 4.3 (which obviously will upgrade the Sinamics to 4.5) and hopefully better protect the motors. Regards, Graeme
	Last edited by: Graeme at: 12/6/2013 10:16 AM Motor type Last edited by: Graeme at: 12/5/2013 11:03 AM
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