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MELSEC-A
5 DATA USED FOR POSITIONING CONTROL
Pr.119
Feed forward gain
Set the feed forward gain factor for position control.
When the setting is 0%, feed forward control is not performed.
When the setting is 100%, droop pulses are not generated during constant-speed
operation.
However, if sudden acceleration/deceleration is made, overshoot increases. (The
guideline of the acceleration/deceleration time at 100% is 1s or more.)
POINT
When setting this parameter, always set "
Pr.108
Auto tuning" to "2: Manual mode
2".
Pr.120
In-position range
Set the droop pulse range in which the in-position output is provided to the AD75.
Set this parameter in the unit of "
Pr.106
Feedback pulse".
Example) When setting
10 m as the in-position range at the ballscrew lead of
10mm and the feedback pulse of 8192 pulse, set the value indicated by
the following expression.
10
10
-6
10 10
-3
8192
=
8.192
8
Pr.121
Solenoid brake output
Set a time delay from when the solenoid brake interlock signal (MBR)
turns OFF until the servo amplifier shuts OFF the base circuit.
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