Mitsubishi Electric A800 Plus Series Function Manual page 110

• 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
Normal operation
Line speed command
Start command
Y231 OFF
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.
Pr.190 to Pr.196 setting
Negative logic
114
115
331
Tension feedback is ON.
Tension command
Motor speed
Pr.425
(Break detection waiting time)
ON
ON
Break detection
Tension feedback
Pr.131
FUP
ON
Example of the PID upper limit (FUP) signal
TENSION SENSOR FEEDBACK SPEED CONTROL
Tension sensor feedback speed control details
Lower limit (Pr.132)
PID compensation amount = 0
Pr.137
ON
ON
page 108 for the details of the Y231 signal.)
Turns OFF when the
motor stops running and
the start command turns
OFF.
OFF
OFF
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