IAI America ERC2 - Manual (Page 93)

5. Data Entry
70
(4) Acceleration/Deceleration x Enter the acceleration/deceleration at which the actuator will be moved, in [G].
Basically, you should set values within the rated range specified in the
catalog.
The input range is greater than the rated range in the catalog, in order to
accommodate situations where you want to “shorten the tact time when the
transferring mass is much smaller than the rated loading capacity.”
If the load vibrates during acceleration/deceleration and causes problem,
decrease the set values.
Increasing the set value makes acceleration/deceleration quicker, while
decreasing the set value makes acceleration/deceleration more gradual.
Caution: When setting the speed and acceleration/deceleration, refer to 1.3, “Specifications” and enter
appropriate values that will prevent the actuator from receiving excessive impact or vibration, by
considering the installation conditions and shape of the load. Increasing the speed and
acceleration/deceleration changes the ltransferring mass significantly, and the actuator
characteristics also vary from one model to another. Therefore, consult IAI’s Sales Engineering
Section for the maximum limits that can be entered in your specific application.
(5) Push x Select “positioning operation” or “push & hold operation.”
The factory setting is “0.”
0: Normal positioning operation
Other than 0: Push & hold operation (The set value defines the current-
limiting value.)
(6) Threshold x This field is not used for this controller.
The factory setting is “0.”
(7) Positioning band x The meaning of the positioning band varies between “positioning operation”
and “push & hold operation.”
“Positioning operation”
The set value defines the distance
before the target position at which the
position complete signal will turn ON.
Increasing the positioning band
quickens the start of the next operation
in the sequence, meaning that the tact
time can be reduced. Set an
appropriate value based on the overall
balance of your system.
Speed
Acceleration Deceleration
Time
S
ta
rti
ng
po
si
tio
n
Ta
rg
et
po
si
tio
n
The position complete
signal turns ON here.
Positioning band
Target
position