Yaskawa SGDH Linear Sigma Series - Manual (Page 312)

9 Operation
9.11.1 Internal Force Limit (Limiting Maximum Output Force)
9-68
9.11 Limiting Force
The SERVOPACK provides the following four methods for limiting output force to protect the machine.
9.11.1 Internal Force Limit (Limiting Maximum Output Force)
Maximum force is always limited to the values set in the following parameters.
For safe operation at setup of linear servomotor, the factory setting of Pn483 and Pn484 are 30%, which are
relatively low. After having set up the linear servomotor, increase the settings of Pn483 and Pn484 to the
desired level. (Set to 800% if there is no restriction.)
Setting
Level
Limiting Method Reference Section
1 Internal force limit 9.11.1
2 External force limit 9.11.2
3 Force limiting by analog voltage reference 9.11.3
4 External force limit + Force limiting by analog voltage reference 9.11.4
Pn483 Forward Force Limit
Setting Range Setting Unit Factory Setting Setting Validation
0 to 800 % 30 Immediately
Pn484 Reverse Force Limit
Setting Range Setting Unit Factory Setting Setting Validation
0 to 800 % 30 Immediately
The settings in these parameters are constantly enabled. The setting unit is a percentage of rated force.
If the force limit is set higher than the maximum force of the linear servomotor, the maximum force of the linear servomotor
is used.
No Internal Force Limit
(Maximum force can be output.)
Internal Force Limit
Too small a force limit setting will result in insufficient force during acceleration and deceleration.
Speed Position Force
Speed Position Force
Speed
Maximum force
t
Speed
Limiting force
Pn484
Pn483
IMPORTANT