Mitsubishi Electric QD75MH1 User Manual page 126

5 DATA USED FOR POSITIONING CONTROL
Pr.1
1: The speed limit value setting range is 0.001 to 2000000.000[degree/min], but it will be decupled
2: The speed limit value setting range is 1 to 2000000000( × 10
[Table 1]
setting value
Value set with peripheral device (unit)
0 : mm 0.01 to 20000000.00 (mm/min)
1 : inch 0.001 to 2000000.000 (inch/min)
2 : degree 0.001 to 2000000.000 (degree/min)
3 : PLS 1 to 50000000 (PLS/s)
and become 0.01 to 20000000.00[degree/min] by setting " Pr.83 Speed control 10 x multiplier
setting for degree axis" to valid.
and become 1 to 2000000000 ( × 10
setting for degree axis" to valid.
Pr.8 Speed limit value
Set the maximum speed during positioning and OPR operations.
The maximum speed during positioning control has to be limited in consideration
of the drive unit and control target specifications.
Take account of the following when determining the speed limit value:
1) Motor speed
2) Workpiece movement speed
Pr.9 Acceleration time 0, Pr.10 Deceleration time 0
Pr.9
" Acceleration time 0" specifies the time for the speed to increase from zero
to the speed limit value (
Pr.10
" Deceleration time 0" specifies the time for the speed to decrease from the
speed limit value (
Velocity
Pr.9
Acceleration time 0
1) If the positioning speed is set lower than the parameter-defined speed limit
value, the actual acceleration/deceleration time will be relatively short. Thus,
set the maximum positioning speed equal to or only a little lower than the
parameter-defined speed limit value.
2) These settings are valid for OPR, positioning and JOG operations.
3) When the positioning involves interpolation, the acceleration/deceleration time
defined for the reference axis is valid.
-2
degree/min) by setting " Pr.83 Speed control 10 x multiplier
Pr.8
).
Pr.8
) to zero.
Pr.8
Speed limit value
Positioning speed
Actual
acceleration
time
Deceleration time 0
Pr.10
5 - 29
Value set with PLC program (unit)
1 to 2000000000 (×10
1 to 2000000000 (×10
1 1 to 2000000000 (×10
1 to 50000000 (PLS/s)
-3
degree/min), but it will be decupled
Time
Actual deceleration time
MELSEC-Q
-2
mm/min)
-3
inch/min)
-3
degree/min) 2