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General Mach Discussion / Re: CS Labs CSMIO/P-A
« on: August 13, 2018, 03:17:19 AM »
Hi,
what does the manual say?
What does the Schneider rep recommend, you can bet your bottom dollar they will have all that stuff and would love to sell
it to you.
My general understanding is that because of PWM of the output you DO NOT USE CAPACITIVE FILTERS (on the output) WITHOUT SPECIFIC ADVICE to do so
from the manufacturer. The capacitive current will give the MOSFETs/IGBTs a real toweling at switch on/switch off. If there is capacitance recommended on the output
I would expect a few nF at most.
On the input side you want line reactors. You can use T section filters also but still you don't want to show excess capacitance to the drive.
Craig
what does the manual say?
What does the Schneider rep recommend, you can bet your bottom dollar they will have all that stuff and would love to sell
it to you.
My general understanding is that because of PWM of the output you DO NOT USE CAPACITIVE FILTERS (on the output) WITHOUT SPECIFIC ADVICE to do so
from the manufacturer. The capacitive current will give the MOSFETs/IGBTs a real toweling at switch on/switch off. If there is capacitance recommended on the output
I would expect a few nF at most.
On the input side you want line reactors. You can use T section filters also but still you don't want to show excess capacitance to the drive.
Craig