Problem FB41 PID

rikita

Member
Join Date
Apr 2015
Location
algeria
Posts
27
hi , I'm trying to implement PID in step 7 using FB41.the FB41 is implemented in OB35. I know how to set parameters of PID also I know the inputs type, outputs type . the problem I get always max value at the output of the FB41 I dn't know why !
knowing that I set Kp=2 , Ti= 2s , Td= 500ms
taking SP = 2 and PV=1 I get at the output max value (LMN_PER=27648) where is the problem :(
 

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