Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 71

■Operation characteristics (in an example of backward operation)
During the "W" period after the tuning cycle is finished, the output value is held at the output Lower Limit Value (LLV), and
then normal PID control is started. The value "W" can be obtained by the expression "W = (50 + KW)/100  ( - on)", and
the wait setting parameter "KW" can be set in the parameter (s3)+28. (Setting range: Kw = -50 to +32717 [%]) (When the
abnormal range is specified, "W" is handled as "0")
Output value (MV)
Output upper
limit value (ULV)
Output lower
limit value (LLV)
Input value
SV+SHPV
SV (target value)
SV-SHPV


on
  
0 1 2
SHPV: PV Input threshold (hysteresis)
a

W
9 PID CONTROL FUNCTION
9.7 Auto-Tuning
9
Time
Time (s)
69