Fuji Electric Frenic Mega Series - Page 718

App. E Conversion from SI Units
A-22
[2] Calculation formula
(1) Torque, power, and rotation speed
2π
• P [W] ≈
60
• N [r/min]•τ[N•m]
• P [W] ≈ 1.026•N [r/min] • T [kgf•m]
P [W]
• τ[N•m] ≈ 9.55•
N
[r/min]
P [W]
• T [kgf•m] ≈ 0.974•
N[r/min]
(2) Kinetic energy
1
• E [J] ≈
182.4
• J[] • N
2
[(
-1
)]
1
• E [J] ≈
730
• GD
2
[kg•m
2
] • N
2
[(r/min)
2
]
(3) Torque of linear moving load
[Driving mode]
V [m/min]
• τ [N•m] ≈ 0.159
NM [r/min]•ηG
• F[N]
V [m/min]
• T[kgf•m] ≈ 0.159
N
M
[r/min]•η
G
• F[kgf]
[Braking mode]
V [m/min]
• τ[N•m] ≈ 0.159
N
M
[r/min]/η
G
• F[N]
V [m/min]
• T[kgf•m] ≈ 0.159
N
M
[r/min]/η
G
• F[kgf]
(4) Acceleration torque
[Driving mode]
J [kg•m
2
] ΔN[r/min]
• τ[N•m] ≈
9.55
•
Δt[s]
•η
G
GD
2
[kg•m
2
] ΔN[r/min]
• T[kgf•m] ≈
375
•
Δt[s]
•η
G
[Braking mode]
J[kg•m
2
] ΔN[r/min]•η
G
• τ[N•m] ≈
9.55
•
Δt[s]
GD
2
[kg•m
2
] ΔN[r/min]•η
G
• T[kgf•m] ≈
375
•
Δt[s]
(5) Acceleration time
J
1
+J
2
/η
G
[kg•m
2
] ΔN[r/min]
• t
ACC
[s] ≈
τ
M
-τ
L
/η
G
[N•m]
•
9.55
GD
1
2
+GD
2
2
/η
G
[kg•m
2
] ΔN[r/min]
• t
ACC
[s] ≈
T
M
-T
L
/η
G
[kgf•m]
•
375
(6) Deceleration time
J
1
+J
2
•η
G
[kg•m
2
] ΔN[r/min]
• t
DEC
[s] ≈
τ
M
-τ
L
•η
G
[N•m]
•
9.55
GD
1
2
+GD
2
2
•η
G
[kg•m
2
] ΔN[r/min]
• t
DEC
[s] ≈
T
M
-T
L
•η
G
[kgf•m]
•
375