10/6/2015 10:11 AM | |
Joined: 7/2/2015 Last visit: 8/19/2024 Posts: 2 Rating: (0) |
Hi I am using S7 1200 PLC . I want to use pid compact to control pressure trough manupulating the speed of motor using ACS850 vfd. The pressure sensor input range is -10 to 5mbar as a 4-20mA receive pressure value nearest 0 to -3mbar,so i use setpoint is -1.16mbar, i have tried pretunning but i obtain the error process value is close to setpoint, For successive pretunning formula, sp-pv >0.3 (high pv-low pv) according to this formula pretuning is not possible, if possible then anyboady help us
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Last edited by: Min_Moderator at: 10/7/2015 10:03:03 AMNew subject after splitting |
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