
B-63943EN-1/02 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
- 797 -
P0
P1 P2
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
0 8000 16000 24000 32000 40000 48000
Speed mm/min
Acceleration mm/sec
2
P5
Fig. 7.2.5 (l) Acceleration pattern in case of - move and acceleration
(4) In case of minus move (down) and deceleration
Because torque of Gravity works against the output torque of
motor and torque of friction works forward to the output torque
of motor, torque for acceleration/deceleration is as follows.
Maximum torque : 90(=100-20+10) (Nm)
Speed 0 to 2000(min
-1
)
Torque at rapid traverse : 69(=79-20+10) (Nm)
Speed 3000(min
-1
)
Minimum torque : 48(=58-20+10) (Nm)
Speed 4000(min
-1
)
0
20
40
60
80
100
0 1000 2000 3000 4000
Speed(min
-1
)
Torque(Nm)
P0 P1
P5
Fig. 7.2.5 (m) Torque for Acc/Dec in case of - move and deceleration
Parameter setting is as follows,
Parameter No. Setting Unit Remarks
Acceleration
at P0
19563 9356 0.01% Set half the acceleration at P1, or
9356.
Acceleration
at P1-P2
19564,19565 18712 0.01% At P1 and P2, 90(Nm) can be
used for the acceleration/
deceleration, so set the ratio 7717
(mm/sec
2
) to 4124 (mm/sec
2
).
(1.8712 = 7717 / 4124)
Acceleration
at P3-P4
19566 to
19567,
0 0.01% 0 is set because P3 to P4 are
skipped.
Acceleration
at P5
19568 14345 0.01% At P5, 69(Nm) can be used for the
acceleration/deceleration, so set
the ratio 5916 (mm/sec
2
) to 4124
(mm/sec
2
).
(1.4345 = 5916 / 4124)