Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - MECHATROLINK-II Communications Reference - Manual (Page 141)

4 Operation
4.8.8 Speed Limit Detection Signal (/VLT)
4-56
Internal Speed Limit Function
If the internal speed limit function is selected in Pn002.1, set the limit of the maximum speed of the servomo-
tor in Pn407. The limit of the speed in Pn408.1 can be either the maximum speed of the servomotor or the
overspeed alarm detection speed. Select the overspeed alarm detection speed to limit the speed to the maxi-
mum speed of the servomotor or the equivalent.
Note: The servomotor’s maximum speed or the overspeed alarm detection speed will be used when the setting in this
parameter exceeds the maximum speed of the servomotor used.
External Speed Limit Function
If the external speed limit function is selected in Pn002.1, the motor speed is controlled by the speed limit
value (VLIM). For details, refer to
Σ -V Series User’s Manual, MECHATROLINK-II Commands (No: SIEP
S800000 54).
Pn407
Speed Limit During Torque Control
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 10000 1 min
-1 10000 Immediately Setup
Torque
Parameter Meaning
When
Enabled
Classification
Pn408
n. 0
[Factory setting]
Uses the smaller value of the maximum motor speed
and the value of Pn407 as the speed limit value.
After restart Setup
n. 1
Uses the smaller value of the overspeed alarm detec-
tion speed and the value of Pn407 as speed limit value.