
B–63010EN/02
4. DESCRIPTION OF PARAMETERS
385
7521 Retract time constant
[Data type] Word axis
[Unit of data] m
[Valid data range] 1 to 4000
This parameter sets the time constant for time–setting linear
acceleration/deceleration used in retract operation during high–speed
remote buffer operation for each axis. (Time constant for deceleration at
stop)
NOTE
The time constant setting is shifted according to the data
interpolation period during high–speed remote buffer
operation.
D When the interpolation period is 8 ms, a multiple of 8 in ms
is used as the time constant.
D When the interpolation period is 4 ms, a multiple of 4 in ms
is used as the time constant.
D When the interpolation period is 2 ms, a multiple of 2 in ms
is used as the time constant.
D When the interpolation period is less than 1 ms, the unit of
the time constant is ms.
When the time constant setting is not a multiple of 8, 4, or 2,
it is rounded up to the nearest multiple of 8, 4, or 2.
[Example] When the setting is 9:
1) When the interpolation period is 8 ms, the time
constant is 16 ms.
2) When the interpolation period is 4 ms, the time
constant is 12 ms.
3) When the interpolation period is 2 ms, the time
constant is 10 ms.
4) When the interpolation period is less than 1 ms, the
time constant is 9 ms.
7522 Retract amount
[Data type] 2–word axis
[Unit of data]
Increment system IS–A IS–B IS–C Unit
Linear axis (millimeter input) 0.01 0.001 0.0001 mm
Linear axis (Inch input) 0.001 0.0001 0.00001 inch
Rotation axis 0.01 0.001 0.0001 deg
[Valid data range] –99999999 to 99999999
This parameter sets the amount of travel by retract operation during
high–speed remote buffer operation for each axis.