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MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
Storage item Storage details
Md.108
Servo status
This area stores the servo status.
•
Zero point pass
Turns ON if the zero point of the encoder has been passed even once.
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Zero speed
Turns ON when the motor speed is lower than the servo parameter “zero speed.”
•
READY ON
Indicates the ready ON/OFF.
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Servo ON
Indicates the servo ON/OFF.
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Servo alarm
Turn ON during the servo alarm.
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In-position
The dwell pulse turns ON within the servo parameter “in-position.”
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Torque limit
Turns ON when the servo amplifier is having the torque restricted.
•
Absolute position lost
Turns ON when the servo amplifier is lost the absolute position.
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Servo warning
Turn ON during the servo warning.
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Update timing : 1.7ms
Md.109
Regenerative load ratio
•
The rate of regenerative power to the allowable regenerative power is indicated
as a percentage.
•
When the regenerative option is used, the rate to the allowable regenerative
power of the option is indicated.
(Buffer memory) %
•
U
p
date timin
g
: 1.7 ms
Md.110
Effective load torque
•
The continuous effective load torque is indicated.
•
The average value of the load rates for the past 15 seconds to the rated torque is
stored as a percentage, rated torque being 100%.
(Buffer memory) %
•
Update timing: 1.7 ms
Md.111
Peak torque ratio
•
The maximum torque is indicated. (Holding value)
•
The peak values for the past 15 seconds are indicated, rated torque being 100%.
(Buffer memory) %
•
Update timing: 1.7 ms