
3.SPECIFICATIONS SVM B-65322EN/02
- 16 -
- For vertical movement
The amount of regenerative discharge (power [W]) when the operation
duty for downward rapid traverse is D(%)
(a) SI unit system
5)n (Expressio ][
100
10047.12
1
W
D
VmThw ×⋅⋅×=
−
Th: Upward torque that the motor applies at the time of
downward rapid traverse [N
⋅m]
Vm: Motor speed at rapid traverse [min
-1
]
D : Operation duty [%] for downward rapid traverse
D is set to 50% maximum. Usually, D is less than 50%.
(b) CGS unit system
5)n (Expressio ][
100
10026.12
2
W
D
VmThw ×⋅⋅×=
−
Th: Upward torque that the motor applies at the time of
downward rapid traverse [kg
⋅cm]
Vm: Motor speed at rapid traverse [min
-1
]
D : Operation duty [%] for downward rapid traverse
D is set to 50% maximum. Usually, D is less than 50%.
If the motor load moves up and down, the sum of expressions 4 and 5
gives the amount of energy regenerated per regeneration cycle.
w = w1 + w2 [W] (Expression 6)
From Table 3.6.2, select a separated regenerative discharge resistor
whose regenerative discharge capacity is larger than the regenerative
energy obtained in expression 6.
Table 3.6.2 Regenerative discharge capacity of separated regenerative
discharge resistors
Separated regenerative discharge
resistor
Regenerative
discharge capacity
Condition
A06B-6130-H401 (30 Ω) 20 W
(Caution)
A06B-6130-H402 (30
Ω)
100 W
Wind speed
of 0 m/s
CAUTION
Do not use a regenerative resistor cable longer
than 1 m. Otherwise, it is likely that the
regenerative circuit in the amplifier may
malfunction or the amplifier may be damaged.
NOTE
If the permissible value of a separated
regenerative discharge resistor is exceeded during
use, the unit overheats, resulting in the built-in
thermostat operating to issue an overheat alarm.