
B-63943EN-1/02 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
- 795 -
P0
P1 P2
0
1000
2000
3000
4000
5000
6000
7000
0 8000 16000 24000 32000 40000 48000
Speed mm/min
Acceleration mm/sec
2
P5
Fig. 7.2.5 (h) Acceleration pattern in case of + move and acceleration
(2) In case of plus move (up) and deceleration
Because torque of Gravity and friction work forward to the
output torque of motor, the torque for acceleration/deceleration is
as follows.
Maximum torque : 130(=100+20+10) (Nm)
Speed 0 to 2000(min
-1
)
Torque at rapid traverse : 109(=79+20+10) (Nm)
Speed 3000(min
-1
)
Minimum torque : 88(=58+20+10) (Nm)
Speed 4000(min-1)
0
50
100
150
0 1000 2000 3000 4000
Speed(min
-1
)
Torque(Nm)
P0 P1
P5
Fig. 7.2.5 (i) Torque for Acc/Dec in case of + move and deceleration
Parameter setting is as follows,
Parameter
No.
Setting Unit Remarks
Acceleration
at P0
19557 13514 0.01% Set half the acceleration at P1, or 13514.
Acceleration
at P1-P2
19558,
19559
27027 0.01% At P1 and P2, 130(Nm) can be used for
the acceleration/ deceleration, so set the
ratio 11146 (mm/sec
2
) to 4124 (mm/sec
2
).
(2.7027 = 11146 / 4124)
Acceleration
at P3-P4
19560 to
19561
0 0.01% 0 is set because P3 to P4 are skipped.
Acceleration
at P5
19562 22662 0.01% At P5, 109(Nm) can be used for the
acceleration/deceleration, so set the ratio
9346 (mm/sec2) to 4124 (mm/sec2).
(2.2662 = 9346 / 4124)