Tension sensor feedback speed control details
TENSION SENSOR FEEDBACK SPEED CONTROL
109
4
• 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.
Output signal
Pr.190 to Pr.196 setting
Positive logic
Negative logic
FDN
14
114
FUP
15
115
Y231
231
331
Winding diameter
compensation amount
Break detection
Start command
ON
OFF
OFF
OFF
ON
Y231
Pr.425
(Break detection waiting time)
PID compensation amount = 0
Normal operation
Tension feedback is ON.
Tension command
Turns OFF when the
motor stops running and
the start command turns
OFF.
Line speed command
Motor speed
Lower limit (
Pr.132
)
Tension feedback
Pr.137
Pr.131
ON
ON
ON
FUP
Example of the PID upper limit (FUP) signal
Summary of Contents for A800 Plus Series
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