NSK MEGATORQUE M-ESB-YSB2020AB300 - Page 345

— A-22 —
B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
Appendix 5: Regeneration Dump Resistor
2
2
3
3
t
t
y
y
p
p
e
e
2
2
5
5
t
t
y
y
p
p
e
e
l The relation of recommended maximum velocity and inertial load described above for 180° and
360° indexing is shown in Figure A-24 as an example.
l The regeneration is observed in the area A.
Example:
Point B Moment of Inertia : 5kgm
2
Velocity : 1.5 r.p.s.
Regeneration occurs when decelerating under above conditions.
® The regeneration dump resistor is not necessary when indexing angle is less than 360°.
® The external regeneration dump resistor may be necessary in the area A.
Contact NSK representative for more details about the external regeneration dump resistor.
Figure A-24: Relation between the recommended maximum velocity and load inertia.
180° indexing
1 0.50.1 105 100 50 500
0.10.05 1 0.5 10 5 10050
3.0
2.5
2.0
1.5
1.0
0.5
0
A
Velocity [rps]
Moment of Inertia [kg
･
m
2
]
Inertia GD
2
[kgf
･
m
2
]
360° indexing
PointB
YSB2020 YSB5120YSB4080 YSB3040 YSB5240
l Consult with NSK representative on the recommendation of other use conditions.