Hi. Now i see a problem same you :

- I use CU320 , Encoder 1024 rpm and SMC30. I see fault F31131, i see help of Siemens and now i want change parameter P0425.

--> My problem : When change P10 from 0 to 4 ( 0: ready, 4 : Encoder commisioning ) have problem with project's parameter ? (My system required always operate. I'm afraid some one parameter will change when P10 = 0 to 4 / P10 = 4 to  0) 

Help me. Thanks !!!

Thanks !!!

i remain a little question : Now parameter P0425 is 1024, i want to change value > 1024. Have problem for hardware of inveter ?

Hello,

you just have to watch the encoder pulses on the datasheet and then change parameters 425 and probably the p408 (not sure, compare datasheet values with actual sinamics value). Then return p10 =1 and try it again.

You shouldnt have any problem with the inverter...

New question published by +84989056958 is split to a separate thread with the subject S120, encoder defect, change control type from speed control with Encoder to speed control encoderless.

Best regards
Min_Moderator

Hello I have 31118 fault sol.

If this alarm come then please connect your vfd to earth then fault 31118 not comes.