IAI America LSA-W21SS - Manual (Page 33)

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Condition [2]: Thrust during continuous operation
Confirm that the thrust during continuous operation, or Ft, which also takes into consideration the load
and duty, is smaller than the rated thrust of the large linear actuator.
Here, Fd indicates the thrust required for deceleration and can be calculated as follows:
M: Slider
weight
m: Slider load (kg)
d: Commanded deceleration (m/s
2
)
Ff: Traveling resistance (N: as described earlier)
If the obtained thrust during continuous operation Ft is smaller than the rated thrust, the actuator can be
operated in the applicable conditions.
Large linear servo actuator LSA-W21SS, LSA-W21SM Rated thrust
 200 N
Large linear servo actuator LSA-W21HS, LSA-W21HM Rated thrust
 400 N
The actuator can be used in any operating conditions that satisfy both conditions 1 and 2 specified above.
If either condition cannot be satisfied, take appropriate measures such as reducing the slider load,
acceleration or duty.
[Slider weight]