
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT
- 151 -
- For vertical operation
(a) When the SI unit system is used
2)n (Expressio ][10047.1
1
JtaVmThQ ⋅⋅⋅×=
−
Th: Upward supporting torque applied by the motor during
downward rapid traverse [N⋅m]
Vm: Motor speed during rapid traverse [min
-1
]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
(b) When the CGS unit system is used
2)n (Expressio ][10026.1
2
JtaVmThQ ⋅⋅⋅×=
−
Th: Upward supporting torque applied by the motor during
downward rapid traverse [kg⋅cm]
Vm: Motor speed during rapid traverse [min
-1
]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
If the operation is vertical, the regenerative energy per operation is a
sum of the values of Expressions 1 and 2.
R = P + Q [J] (Expression 3)