Mitsubishi Electric A800 Plus Series Function Manual page 175

Winding diameter calculation setting
Integral action and PID manipulated amount during initial winding
diameter calculation at a start (Pr.1258, Pr.1259)
• The limit for manipulated amount of PID control for dancer roll can be set to prevent a motor from over-speeding during
initial winding diameter calculation at a start.
• Set the limit for manipulated amount of integral control action of PID control in Pr.1258 Integral term limit at start.
• Set the limit for manipulated amount of PID control in Pr.1259 PID term limit at start.
PID calculated value = Gain G  Kp (1 +
Differential term
Td S
Proportional term
Deviation
Gain
Integral term
Gain
Winding diameter calculation completion signal (Y232 signal)
• After initial winding diameter calculation at a start is completed, the Winding diameter calculation completion at start (Y232)
signal is output.
• For the Y232 signal, set "232 (positive logic) or 332 (negative logic)" in one of Pr.190 to Pr.196 (output terminal function
selection) to assign the function to the output terminal.
174
WINDING DIAMETER COMPENSATION FUNCTION
Gain
G
Kp
G
Kp
G
1
+ Td  S)
Ti  S
Kp
1/(Ti S)
Pr.1258
Manipulated
amount
Pr.1259