Estun pronet series - Limiting Servomotor Speed During Torque Control

ProNet Series AC Servo User's Manual
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4.7.4 Limiting Servomotor Speed During Torque Control
During torque control, the servomotor is controlled to output the specified torque, which means that the servomotor speed
is not controlled. Accordingly, when an excessive reference torque is set for the mechanical load torque, it will prevail over
the mechanical load torque and the servomotor speed will greatly increase.
This function serves to limit the servomotor speed during torque control to protect the machine.
Without Speed Limit With Speed Limit
(1)Speed Limit Enable
Parameter Description
Pn001
b.□□0□
Use the value set in Pn406 as the speed limit （Internal speed limit ）
b.□□1□
Use the lower speed between V-REF and Pn406 as an external speed limit
input.(External speed limit)
(2)Speed Limit During Torque Control
Pn406
Speed Limit During Torque Control
Setting Range Setting Unit Factory Setting Setting Validation
0～6000
rpm 1500 Immediately
·Set the servomotor speed limit value during torque control.
·Pn005=H.□□1□，Pn406 is motor speed limit value.
·The servomotor’s maximum speed will be used when the setting in this parameter exceeds the maximum speed of the
servomotor used.
Torque