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Lost one of the phases - will this affect the motor or the converter?

Created by: Xtopher at: 3/25/2022 3:24 PM (1 Replies)

3/25/2022 3:24 PM	Rate (0)
Xtopher Member Joined: 3/17/2022 Last visit: 1/23/2023 Posts: 1 Rating: (0)	am having a challenge on a sinamics v20 converter compact. I was running a three phase motor using sinamics converter with three phase input voltage. I lost one of the phases but the drive did not show any fault/alarm on the display and the motor is still running. my question is will this affect the motor or the converter? ------------------------------------------------------------------------------------------ Split from Sinamics v20 for FAN application.
	Last edited by: Jen_Moderator at: 03/28/2022 09:18:45 New subject after splitting
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3/27/2022 11:39 AM	Rate (0)
Tractor Gold Expert Joined: 3/27/2008 Last visit: 11/22/2024 Posts: 1148 Rating: (142)	A phase loss will create a high DC Link ripple, and it this monitoring which will trigger a supply failure. If the motor is lightly loaded, the ‘ripple’ will be low, and the drive will maintain a supply to the motor, with an alarm showing. Whilst the motor will not be damaged, the Dc Link capacitors will be working hard with excessive ripple. Tractor
	Tractor
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