NSK Megatorque PS Series, User Manual

Page: 298 / 370

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P VG: Velocity Gain
This parameter sets the velocity loop proportional gain.
◊
Refer to “5.4.2. Setting Velocity Loop Proportional Gain (VG)” for details.
Category Parameter
Format VG data
Data range 0.10 to 255.00
Shipping set
0.50
1.50
:
The version of the driver unit is not printed on front panel. Ex :
EDC-PS1006AB502
:
The version of the driver unit is printed on front panel. Ex :
EDC-PS1006AB502-A, ～
If the parameter VG is changed, the parameters SG (Servo gain) will be cleared to zero (0).
P VGL: Velocity Gain, Lower
This parameter set the velocity loop proportional gain for a stopping Motor in the gain switching
function.
◊
Refer to “8.5.4. Automatic Rain Switching” for details.
◊
The automatic gains switching is effective when the parameter GP (Gain switching
point” is set to [GP > 0].
Category Parameter
Format VGL data
Data range 0.10 to 255.00
Shipping set
0.50
1.50
:
The version of the driver unit is not printed on front panel. Ex :
EDC-PS1006AB502
:
The version of the driver unit is printed on front panel. Ex :
EDC-PS1006AB502-A, ～
ÌÌ
VL: Velocity Limiter
This parameter sets the limits to the velocity for a positioning operation caused by the internal
commands (Positioning commands, jogging, and Home Return) and the threshold to report the
abnormal velocity command in pulse train positioning operation.
The parameter VL will be automatically set when the parameter FR (Feedback signal resolution) is
specified.
◊
Refer to “7.2.8.1. Resolution of Position Feedback Signal” for details.
◊
The limiting velocity is to control the frequency of the position feedback signal not to
exceed 781 [kHz].
In case of the operation caused by the internal commands, the velocity is limited to the setting of
the parameter VL regardless of the settings of other parameters such as the parameter MV.
In case of the pulse train command operation, the warning C0 (Pulse command/Feedback error)
occurs referring to the setting of the parameter VL as a guide.
Category Parameter
Format VL data
Data range 0.001 to 10.000 [s
-1
]
Shipping set 10.000