
22
Push-motion operation
Push-motion operation is a function that keeps the rod or table pushed up against the workpiece, as with an
air cylinder.
Please check the usage instructions and precautions below prior to use.
[Precautions]
· When pushing, the static and dynamic allowable moments of the guide must be taken into consideration.
[Push force adjustment]
· The push force during push-motion operation can be adjusted by
changing the "Push force (%)" on EleCylinder.
· Please check the push force for the applicable model in the "Correlation
Diagrams between Push Force and Current Limit" on the production
specification page, and select a model that matches your conditions.
[Lead selection method]
Select a lead with the desired push force within the recommended current
limit value range (colored area of the graph).
Lead 4 would be appropriate for the EC-T3 type shown in the figure to the
right if a push force of 8N is desired. Selecting lead 2 would limit the
adjustment range.
<Correlation Diagram between Push Force and Current Limit>
EC-T3
(Example)
Push f
or
ce
(N)
Recommended area
Current limit value (%)
40
30
20
10
0
50 60 70 80 90 100 110
0
2
4
6
8
10
12
14
16
18
20
22
Lead 2 (upper limit value)
Lead 2 (average value)
Lead 2 (lower limit value)
Lead 4 (upper limit value)
Lead 4 (average value)
Lead 4 (lower limit value)
· The "Correlation Diagram between Push Force and Current Limit" show lower guidelines for push force for each current limit value.
· Individual differences in the motor and variations in machine efficiency may cause the push force lower limit to be exceeded, even if
the current limit value is the same.
This is especially true when the current limit value is 30% or lower, in which case the push force lower limit could be exceeded by
40% or more.
Caution
Overhang load length (ℓ)
This is the approximate offset at which the actuator can operate smoothly even when the workpiece or
bracket is offset from the slider. Vibration or other factors could cause failure if the approximate length is
greatly exceeded. The product should therefore be used within the approximate length. Please refer to the
reference page of each model for detailed figures.
ℓ
ℓ