Timeline for Will Undervoltage Damage A Brushless Fan?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Dec 30, 2023 at 16:40 | comment | added | Abel | If using cheap chinese fans with limited docs, buy an extra and test the heck out of the spare | |
| Dec 30, 2023 at 14:41 | history | edited | Kokachi | CC BY-SA 4.0 |
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| Dec 30, 2023 at 14:21 | comment | added | Kokachi | Will a 1N4744A zener diode in series before a fan cut-off at 15 volts? fan uses 0.2 watts at 24v | |
| Dec 30, 2023 at 4:34 | comment | added | hobbs | @Kokachi you buy it, you connect the + to the + and the - to the -. | |
| Dec 29, 2023 at 16:47 | history | edited | SteveSh | CC BY-SA 4.0 |
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| Dec 29, 2023 at 16:36 | comment | added | Kokachi | @hobbs Please show me how to do that? | |
| Dec 29, 2023 at 16:35 | comment | added | Kokachi | @ChesterGillon The fan I use are generic either oiled containing or a ball bearing Chinese fans with just 2 wires so no signal from the third wire. Usually the names like Sunon or Pengda like such and poor without available datasheets. | |
| Dec 29, 2023 at 16:26 | comment | added | hobbs | Just put a low-voltage disconnect on it and don't worry? | |
| Dec 29, 2023 at 15:54 | comment | added | Andy aka | What does the fan's data sheet say about supply voltage range? | |
| Dec 29, 2023 at 15:53 | comment | added | Chester Gillon |
@Kokachi As for how can I know if the fan has stalled or stopped some fans have a Tachometer Signal output, which can be used to measure the fan rotation speed, or detect if the rotor has locked. Have you a particular 24 V fan in mind?
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| Dec 29, 2023 at 15:42 | comment | added | DKNguyen | With your eyes. | |
| Dec 29, 2023 at 15:41 | comment | added | Kokachi | Alright I can test it with a variable supply but how can I know if the fan has stalled or stopped? | |
| Dec 29, 2023 at 15:18 | comment | added | DKNguyen | Probably depends on whether the fan has voltage cutoff circuitry or not. Test with a variable supply to see when the fan stops running (and when it stops starting up, which may not be the same). You might also be able to finagle something using the third control pin on the fan. | |
| Dec 29, 2023 at 15:11 | history | asked | Kokachi | CC BY-SA 4.0 |