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CCS/AMC1200: The AMC1200 overload capacity is weak

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Part Number:AMC1200

Tool/software: Code Composer Studio

Hi All,

We used the AMC1200 in the inverter(0.75KW/380V),the output current is 2.5A when the U/V/W is no-load,theoretically,according to the design,

the inverter is truned off  in 1 minute when 150% overload(the output current is 5A) and in 3 minutes when 200% overload(the output current is 5A),

but now,access the load(motor or others),the inverter will be turned off when the output current is 3-4A if the 200& overload.

Can your team help to analyze the issue,thanks.

the diagram is on the attachement to evaluate(we used the ACPL-C790 is OK in the production).


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