Tension sensor feedback torque control details
TENSION SENSOR FEEDBACK TORQUE CONTROL
151
6
• When using each signal, assign the function to
Pr.190 and Pr.196 (output terminal function selection)
referring to the
following table.
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
for the details of the Y231 signal.)
• 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
Output signal
Pr.190 to Pr.196 setting
Positive logic
Negative logic
FDN
14
114
FUP
15
115
Y231
231
331
Tension feedback
Pr.137
Pr.131
ON
ON
ON
FUP
Example of the PID upper limit (FUP) signal
Содержание A800 Plus Series
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