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V90 temperature

Created by: sinnaiG at: 7/17/2020 10:08 PM (4 Replies)

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7/17/2020 10:08 PM	Rate (0)
sinnaiG Bronze Member Joined: 7/20/2009 Last visit: 1/16/2024 Posts: 61 Rating: (3)	What is the normal operation temperature for a servo motor V90? I have read that it is to hot... but over what temperature i will have problems; What is the limit?? Thanks

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7/20/2020 3:27 PM	Rate (0)
0_Einstein Diamond Member Joined: 7/7/2010 Last visit: 12/6/2024 Posts: 15468 Rating: (2455)	What is set on the drive's control unit's parameters for the motor? That is the limit if the motor automatically configures the parameters for the drive (like a Siemens Drive-Cliq motor). Otherwise, you use motor data and motor datasheet data to configure those parameters manually. sinnaiG What is the normal operation temperature for a servo motor V90? I have read that it is to hot... but over what temperature i will have problems; What is the limit?? Thanks
	science guy
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7/21/2020 12:48 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/5/2024 Posts: 5960 Rating: (820)	Dear sinnaiG, The 1FL6 motors have isolation/heating class B. The frequency converter has an accordingly I²t protection internaly. E.g. 50°C steady on the surface feels very hot by touching it (you'll get burning injury), but it is not too hot for the motor. Please consider, that all non ventilated servo motors disipating the heat via a sufficient flange mounting onto the steel (or aluminum) structure. A thermal isolated mounting avoids disipating the heat.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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8/2/2020 12:31 PM	Rate (0)
sinnaiG Bronze Member Joined: 7/20/2009 Last visit: 1/16/2024 Posts: 61 Rating: (3)	Dear Technology Team I understand that 50C is not to hot for the motor, not even 70 or 80C but what is to HOT? What it means that "have isolation/heating class B" ? r0632 can reach 130C an steel work? It reduce the life time depending on the temperature? And how?

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8/3/2020 2:01 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/5/2024 Posts: 5960 Rating: (820)	Dear sinnaiG, What is hot: Without having a certain value by measurement, hot cannot being determined. As I wrote before in the example, for humans 50°C is too hot and will cause injuries on the skin. The 1FL6 motor has an isolation class B, which means that for for these motors the winding may have a temperature of 80°C (K) over the max. incomming/environmental temperature of 40°C. This ensures, that the limit of 130°C for class B is not exceeded. Thats, what the motor is designed for. If the environmetal temperature is higher, e.g. 50°C, the motors load needs being reduced in order not to reach / exceed the limit. r0632 shows the actual calculated motors winding temperature. These motors have no ventilation, hence the heat disipation is via the flange and the structure. Exceeding this limit has negative effects to the el. isolation capability and the aging of the motors material. E.g. decreasing isolation resistance and in the worst case ground /winding faults.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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