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Use braking resistor larger than recommended?
Created by: bruno_rocha49 at: 6/16/2024 1:28 PM (2 Replies)
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| 6/16/2024 1:28 PM | |
Joined: 2/10/2024 Last visit: 6/16/2024 Posts: 1 Rating:
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Can I put a braking resistor larger than recommended for my drive? the recommended one is 1200 watts and 27 ohms, the one I have is 1500 watts and 60 ohms ------------------------------------------------------------------------------------------ |
Last edited by: The Helping Hand at: 06/17/2024 07:10:06New subject after splitting |
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| 6/16/2024 4:54 PM | |
Joined: 12/18/2014 Last visit: 11/18/2024 Posts: 34239 Rating:
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And which drive have you? |
| 6/18/2024 1:00 PM | |
Joined: 10/11/2006 Last visit: 11/18/2024 Posts: 5941 Rating:
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Hello bruno_rocha49, keep in mind that braking chopper and braking resistor are working together. So you also have to pay attention to the load cycles of the braking chopper of the used drive as well. Additionally you have to pay attention to the required peak braking power, because when using a braking resistor with nearly double the resistance value (27Ω to 60Ω) this would cut peak braking power into half. P=U²/R You can get in contact with your responsible Siemens contact, who can also support you with technical data of the braking chopper in question. https://www.automation.siemens.com/aspa_app?ci=yes |
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With best regards, |
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