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6-21
6-7 Torque Limit Switching
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
6
Applied Functions
6-7 Torque Limit Switching
The function switches the torque limit by the operation directions, and depending on the
Forward External Torque Limit (PCL), the Reverse External Torque Limit (NCL), and the
Forward/Reverse Torque Limit Input Commands from the MECHATROLINK-II
communications.
This function is used in the following conditions.
• When push-motion operation, such as pressing, is performed.
• When the torque at startup and during deceleration should be suppressed to protect the
mechanical system, etc.
The Torque Limit Selection (Pn521) is used to select a method to switch the torque limit.
Operating Conditions
The torque limit switching function works under the following conditions.
Parameters Requiring Settings
Conditions
Operating
Mode
*1
POSITION CONTROL mode, SPEED CONTROL mode, FULL CLOSING
CONTROL mode
Others
• Servo-ON state
• The factors other than control parameters are set correctly.
This includes the torque limit. The motor operates normally without any failures.
*1.This switching function is disabled in the TORQUE CONTROL mode. Only the No.1 Torque Limit
(Pn013) is effective.
Parameter
number
Parameter name
Explanation
Reference
Pn521
Torque Limit Selection
Select the torque limit based on the various
parameters and input signals.
Pn013
No. 1 Torque Limit
Set the No. 1 motor output torque limit value.
Pn522
No. 2 Torque Limit
Set the No. 2 motor output torque limit value.
Pn525
Forward External Torque
Limit
Set the forward torque limit using a network signal.
Pn526
Reverse External Torque
Limit
Set the reverse torque limit using a network signal.
Содержание OMNUC G5 R88D-KN series
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