Instruction manual

11 - 21
11. OPTIONS AND AUXILIARY EQUIPMENT
11.2 Regenerative brake options
CAUTION
The specified combinations of regenerative brake options and servo amplifiers
may only be used. Otherwise, a fire may occur.
(1) Combination and regenerative power
The power values in the table are resistor-generated powers and not rated powers.
Regenerative power[W]
Servo amplifier
Built-in
regenerative
brake
resistor
MR-RB032
[40
]
MR-RB12
[40 ]
MR-RB30
[13 ]
MR-RB31
[6.7 ]
MR-RB32
[40 ]
MR-RB50
[13 ]
MR-MB51
[6.7 ]
MR-J3-10B (1) 30
MR-J3-20B (1) 10 30 100
MR-J3-40B (1) 10 30 100
MR-J3-60B 10 30 100
MR-J3-70B 20 30 100 300
MR-J3-100B 20 30 100 300
MR-J3-200B 100 300 500
MR-J3-350B 100 300 500
MR-J3-500B 130 300 500
MR-J3-700B 170 300 500
(Note) Regenerative power[W]
Servo
amplifier
External
regenerative brake
resistor (Accessory)
MR-RB5E
[6
]
MR-RB9P
[4.5 ]
MR-RBB9F
[3 ]
MR-RB6B-4
(20 )
MR-RB60-4
(12.5 )
MR-RB6K-4
(10 )
MR-J3-11KB 500 (800) 500 (800)
MR-J3-15KB 850 (1300) 850 (1300)
MR-J3-22KB 850 (1300) 850 (1300)
MR-J3-11KB4 500 (800) 500 (800)
MR-J3-15KB4 850 (1300) 850 (1300)
MR-J3-22KB4 850 (1300) 850 (1300)
Note: Values in parentheses assume the installation of a cooling fan.
(2) Selection of the regenerative brake option
Use the following method when regeneration occurs continuously in vertical motion applications or when it
is desired to make an in-depth selection of the regenerative brake option:
(a) Regenerative energy calculation
Use the following table to calculate the regenerative energy.
M
Friction
torque
Unbalance torque
T
F
T
U
Servo motor speed
Generated torque
Time
Up
No
tf(1 cycle)
Down
( )
( )
(Driving)
(Regenerative)
T
psd2
t2 t3 t4t1
T
psa2
T
psd1
T
psa1
1)
2)
3)
4)
5)
6)
7)
8)