Sinamics V20: F2 Overvoltage

привода и частотники
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pacotabaco
Posts: 5
Joined: Wed Nov 18, 2020 1:29 pm

Sinamics V20: F2 Overvoltage

Post by pacotabaco » Tue Nov 24, 2020 8:44 am

Hi guys, thanks for your attention.

The drive fails when is close to decelerate (its a roller conveyor for pallets), I tried increasing dec time but its the same.
I thought to acquire a braking resistor and the V20 braking module but definitively I have no space in the electric panel.
Yesterday I changed P1254=0 (no auto regulation of Vdc_max) and it worked but just during 1 or 2 hours, after that it continued to fail.

Any help is welcome.

Le Chat
Posts: 21
Joined: Mon Aug 13, 2018 2:29 pm

Re: Sinamics V20: F2 Overvoltage

Post by Le Chat » Wed Nov 25, 2020 1:13 am

Hello

The braking resistor can be installed in a side of the electric panel not inside

I think the better option is a breaking resistor if the dec time fails.

Check the following:
The Vdc regulator must be enabled
(P1240) and correctly parameterized.

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