Tension Feedback Detection; Pid Control Gain Setting; Integral Control Action Setting; Differential Control Action Setting - Mitsubishi Electric A800 Plus Series Function Manual

• When using each signal, assign the function to Pr.190 and Pr.196 (output terminal function selection) referring to the
following table.
Output signal
Positive logic
FDN 14
FUP 15
Y231 231
PID upper/lower limit hysteresis width (Pr.137)
When the tension feedback value fluctuates, the FUP/FDN signal may chatter (turn ON and OFF repeatedly), depending on
the position.
To prevent the signal chattering, configure Pr.137 PID upper/lower limit hysteresis width to set a hysteresis for the FUP
and FDN signals.
NOTE
• Pr.137 setting does not affect the operation of the Y231 signal. (Refer to
• When a value other than "9999" is set in Pr.137, depending on the fluctuation of the tension feedback value, the FUP/FDN
signal may not turn ON even if the tension feedback value exceeds the Pr.131 setting or falls below the Pr.132 setting.
6.5.5

Tension feedback detection

A signal is output while the tension feedback value maintains the specified normal level.
NOTE
• For the details, refer to
6.5.6

PID control gain setting

Set the proportional band, integral time, and differential time for PID control.
NOTE
• For the details, refer to
6.5.7

Integral control action setting

The manipulated amount for PID integral action can be limited by setting parameters.
The integral control action can be enabled or disabled (the integral term is held) according to the PID control deviation.
Integral control can be disabled by the signal input. (The integral term value is cleared.)
NOTE
• For the details, refer to
6.5.8

Differential control action setting

Differential control can be disabled by the signal input. (The differential term value is cleared.)
NOTE
• For the details, refer to
Pr.190 to Pr.196 setting
Negative logic
114
115
331
Tension feedback
Pr.131
FUP
ON
Example of the PID upper limit (FUP) signal
page 107.
page 84.
page 85.
page 86.
TENSION SENSOR FEEDBACK TORQUE CONTROL
Tension sensor feedback torque control details
Pr.137
ON
ON
page 150 for the details of the Y231 signal.)
6
151