IAI America ERC2 User Manual
Page 59
5. Explanation of Operating Functions
40
(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 load is much smaller than the rated transferring mass.”
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 1.5, “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 transferring 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
Starting positio
n
Ta
rg
et
positio
n
The position complete
signal turns ON here.
Positioning band
Target
position