Estun pronet series - Limiting Torque; Internal Torque Limit

ProNet Series AC Servo User's Manual
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4.9 Limiting Torque
The servo drive provides the following three methods for limiting output torque to protect the machine.
NO. Limiting Method Reference Section
1 Internal torque limit 4.9.1
2 External torque limit 4.9.2
3 Torque limiting by analog voltage reference 4.9.3
4.9.1 Internal Torque Limit
Maximum torque is always limited to the values set in the following parameters.
Pn401
Forward Torque Limit
Setting Range Setting Unit Factory Seeting Setting Validation
0～300
1% 300 Immediately
Pn402
Reverse Torque Limit
Setting Range Setting Unit Factory Seeting Setting Validation
0～300
1% 300 Immediately
·The setting unit is a percentage of rated torque.
·The maximum torque of the servomotor is used, even though the torque limit is set higher than the maximum torque of
the servomotor. (as is the case with the 300% factory setting)
t
Speed
Maximum torque
t
Speed
Limiting torque
Pn402
Pn401
With No Internal Torque Limit
Maximum torque can be output
With Internal Torque Limit
■Note:
Too small a torque limit setting will result in insufficient torque during acceleration and deceleration.
Position
Tor
q
ue S
p
eed
Position
Tor
q
ue
S
p
eed