
3.SPECIFICATIONS SVM B-65322EN/02
- 14 -
- For vertical movement
(a) SI unit system
2)n (Expressio ][10047.1
1
JtaVmThQ ⋅⋅⋅×=
−
Th: Upward torque that the motor applies at the time of
downward rapid traverse [N
⋅m]
Vm: Motor speed at rapid traverse [min
-1
]
ta : Rapid traverse acceleration/deceleration time [sec]
(b) CGS unit system
2)n (Expressio ][10026.1
2
JtaVmThQ ⋅⋅⋅×=
−
Th: Upward torque that the motor applies at the time of
downward rapid traverse [kg
⋅cm]
Vm: Motor speed at rapid traverse [min
-1
]
ta : Rapid traverse acceleration/deceleration time [sec]
If the motor load moves up and down, the sum of expressions 1 and 2
gives the amount of energy regenerated per regeneration cycle.
R = P + Q [J] (Expression 3)