Triangle pattern – IAI America SCON-CA User Manual

Page 346

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Chapter 10

Appendix

336

[When triangle pattern]

t

�a

= Vt/a

Vt : Arrival speed (m/s) a : Command acceleration (m/s

2

)

Velocity

mm/s

Time

s

Positioning

finish time

Acceleration

zone

Deceleration

zone

Positioning time

Triangle Pattern

(3) t

�f

is the rated speed movement time. Figure out from the rated speed movement distance.

t

�f

= Lc/V

Lc : Rated speed movement distance (m)

V : Command speed (m/s)

Rated speed movement distance = Movement distance - Acceleration distance - Deceleration distance

Acceleration distance (Deceleration distance) = V

2

/2a

(4) t

�d

is the deceleration time. If the acceleration and deceleration settings are the same, this

should equal to the acceleration time.

t

�d

= V/a

V : Set speed (trapezoid pattern) or arrival speed (triangle pattern) (m/s)

a : Command deceleration value (m/s

2

)

If the figured out continuous operation thrust Ft is smaller than the rated thrust, the operation is

available.

Actuator rated thrust lead 2.5 type : 5100N

Lead 1.25 type : 10200N

If the value is too larger, it is necessary to have an action such as to shorten the pressing time,

make the standby time longer, make the pressing force smaller, etc.

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