Hello,

I'm using a Sinamics G120 with CU240E-2 PN-F and am having issues with the digital inputs when running with any macro that uses the I/O on the front of control panel. DI0, DI2, DI4 work fine, DI1, DI3, and DI5 do not. Applying 24V directly to the inputs and checking the CU DI status parameter I get nothing on those ports. Tried swapping control units, same result. 

I was taking a wild guess that this might have something to do with the failsafe inputs combining DI0/1, DI2/3 and DI4/5, but none of the macros I was testing used F-inputs, unless there's something I'm missing.

Thanks for any help.

Thanks Christoph,

Connecting the second DI COM to 0V fixed the problem. 

I am using configuration 4, using external power supply. I checked the conections to terminals 69 and 34, it is ok because DI1 and DI5 works fine.

My inverter has a profinet interface and I configured it with macro 7. Like i did with almost 80 inverters in the same pannel and all of them worked! But the others 15 inverters present the same problem with DI3...

Do you know if there is some parameter that enable/disable DI3?

Or, i'm thinking that there is hardware or firmware error...

New question published by nibbzz is split to a separate thread with the subject G120 VFD, digital inputs status table is not updating.

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New question published by Johny1234 is split to a separate thread with the subject G120 vfd not powering up.

Best regards
Min_Moderator