Estun pronet series - External Torque Limit

ProNet Series AC Servo User's Manual
- 118 -
4.9.2 External Torque Limit
This function allows the torque to be limited at specific times during machine operation, for example, during press stops
and hold operations for robot workpieces.
An input signal is used to enable the torque limits previously set in parameters.
(1)Related Parameters
Pn403
Forward External Torque Limit
Setting Range Setting Unit Factory Setting Setting Validation
0～300
1% 100 Immediately
Pn404
Reverse External Torque Limit
Setting Range Setting Unit Factory Setting Setting Validation
0～300
1% 100 Immediately
Note: The setting unit is a percentage of rated torque (i.e., the rated torque is 100%).
(2)Input Signals
Type
Signal
Name
Connector Pin
Number
Setting Meaning Limit Value
Input /P-CL
CN1-41
(factory setting)
ON(low level) Forward external torque limit Pn403
OFF(high level) Forward internal torque limit Pn401
Input /N-CL
CN1-42
(factory setting)
ON(low level) Reverse external torque limit Pn404
OFF(high level) Reverse internal torque limit Pn402
When using this function, make sure that there are no other signals allocated to the same terminals as /P-CL and /N-CL.
(3)Changes in Output Torque during External Torque Limiting
Example: External torque limit (Pn401，Pn402) set to 300%
/P-CL(Forward External Torque Limit Input)
High level Low level
/N-CL
(Reverse
External
Torque
Limit Input)
High
level
Speed
Torque
Pn402
0
Pn403
Low
level
Speed
Torque
Pn401
0
Pn404
Note: Select the servomotor rotation direction by setting Pn001=b.□□□0 (standard setting, CCW=Forward direction).
Position To r
q
ueS
p
eed
Position Tor
q
ueS
p
eed