NSK EDD Megatorque Motor, User Manual

Page: 321 / 398

9. Details of Command and Parameter
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
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
WCD : (Application use only)

This parameter is only used for the EDD MegaTerm. Do not change the setting.
WCDA: (Application use only)

This parameter is only used for the EDD MegaTerm. Do not change the setting.
WCDB: (Application use only)

This parameter is only used for the EDD MegaTerm. Do not change the setting.
WCDC: (Application use only)

This parameter is only used for the EDD MegaTerm. Do not change the setting.
WCDD: (Application use only)

This parameter is only used for the EDD MegaTerm. Do not change the setting.