YASKAWA VS-626M5 Instruction Manual page 288

Appendix
15.3.2 Acceleration/deceleration Capacity
Acceleration Time
Inertial Moment J
Output Characteristics (30 min. Rating)
Maximum Output During Acceleration/de-
celeration
15
Calculation Conditions
J
Table 15.5 Calculation Conditions
Item
2.5 s (0 to 6,000 min
0.5 s (0 to 1,500 min
0.13 kg
M
Load:
Motor:
Basic low speed N
(kW)
0
120% of 30 min. rated output
Calculations
J
In the example shown in Table 15.5, as a result of performing the calculations, the motive force required
from the acceleration/deceleration time is as follows: Upper formula: 30 min. rated 7.5 kW (47.7 NSm);
Lower formula: 15 kW (95.0 N
At 0 to 1,500 min
D
2
 
2 π 0.13 × 1500
P
=
M 60
1000 × 0.5
At 0 to 6,000 min
D
2 0.13 × (6000
 
2 π
P
=
M 60
−1
)
−1
)
2
m
S
2
0.10 kg m
S
2
0.03 kg m (assuming load to be x 0.3)
S
−1
: 1,500 min
B
0
1500
⋅ m).
−1
2
= 6.41
(kW)
−1
)
2 +1500 2
= 10.89
2000 × 2.5
15 -16
Value
Max. output (120%)
30 min. rating
−1
(min )
6000
(kW)