Yaskawa MP930 User Manual
Page 199

Parameters
5.1.2 Parameter Lists
5 -14
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Relationship of Servopack User Constants to MP930 Parameters
Some MP930 controller parameters and Servo Amp user constants have the same function. Set
these parameters carefully.
List of Parameters Requiring Special Attention
The following table shows parameters with the same function.
MP930
Servopack
OWxx10: Position loop gain
Cn-000A: Position loop gain
OWxx11: Feed forward gain
Cn-001D: Feed forward compensation
OWxx1D: Speed loop gain
Cn-0004: Speed loop gain
OWxx0C: Linear acceleration time
Cn-0020: Second level linear acceleration/de-
celeration time constant
OWxx14: Averaged number of revolutions
Cn-0026: Average move time
Fixed parameter 3: Encoder selection
Cn-0001 bE: Encoder selection
Fixed parameter 8: Number of FB pulses per revolu-
tion
Cn-0011: No. of encoder pulses
Fixed parameter 21: Gear ratio, load end
Cn-0024: Electronic gear ratio, numerator
Fixed parameter 20: Gear ratio, servomotor end
Cn-0025: Electronic gear ratio, denominator
Fixed parameter 17 b7: Forward Stored Stroke Limit
Function Selection
Cn-0014 b2: 0: P-SOT mask
Fixed parameter 17 b8: Reverse Stored Stroke Limit
Function Selection
Cn-0014 b3: N-SOT mask
Fixed parameter 24: Positive stored stroke limit
Cn-002F: Forward direction soft limit
Fixed parameter 25: Negative stored stroke limit
Cn-0031: Reverse direction soft limit
OWxx33: Zero point output width
Cn-002A: Zero point position range
Parameters Motion Programs Can Write
The following Servopack user constants can be written from a motion program. (Servopack
user constants are simultaneously written whenever setting parameters are written from a mo-
tion program).
Parameter Name
Motion Program Format
MP930
Servopack
Second Level Linear
Acceleration/Deceleration
Time Constant
ACC[X]6000;
→
OWxx0C
Cn-0020
Average Move Time
SCC[X]6000;
→
OWxx14
Cn-0026
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