YASKAWA SGMJV User Manual page 159

5 Operation
5.5.4 Speed Limit in Torque Control
Internal Speed Limit Function
If the internal speed limit function is selected in Pn002, set the limit of the maximum speed of the motor in
Pn407.
The limit of the speed in Pn408 can be selected from the maximum speed of the motor or the excessive speed
alarm detection speed. Select the overspeed alarm detection speed to limit the speed to the maximum or equiv-
alent speed of the motor.
Pn407
Note:
• The servomotor's maximum speed will be used when the setting in this parameter exceeds the maximum speed of
Pn408
External Speed Limit Function
If the external speed limit function is selected in Pn002, set the V-REF input signal and Pn300.
Type
Input
Inputs an analog voltage reference as the servomotor speed limit value during torque control.
<Note>
• The smaller value of the speed limit input from the V-REF on the Pn407 (Speed Limit during Torque Con-
trol) is enabled when Pn002.1 is set to 1.
• The setting in Pn300 determines the voltage level to be input as the limit value. Polarity has no effect.
• When Pn300 is set to 6.00 (factory setting) and 6 V is input to V-REF (CN1-5, 6), the speed is limited to the
rated speed of the servomotor.
Pn300
5-52
Speed Limit During Torque Control
Setting Range
0 to 10000
The setting in this parameter is enabled when Pn002.1 is set to 0.
•
the servomotor used.
Parameter
Use the smaller value between maximum motor rota-
n. 0 tion number and the value of Pn407 as speed limit
value.
Use the smaller value between excessive speed alarm
n. 1 detection speed and the value of Pn407 as speed limit
value.
Signal Connector
Name Pin Number
V-REF CN1-5
SG CN1-6
Speed Reference Input Gain
Setting Range
150 to 3000 0.01 V/rated speed
Setting Unit Factory Setting
-1
10000
1 min
Meaning
External speed limit input
Signal ground for external speed limit input
Setting Unit Factory Setting
600
Torque
When Enabled
Immediately
When Enabled Classification
After restart
Name
Position Torque
Speed
When Enabled
Immediately
Classification
Setup
Setup
Classification
Setup