sh030106u.pdf - 第332页

11. OPT ION S AND P ERI PHER AL EQU IPMENT 11 - 11 (2) 400 V clas s Servo amplifi er Regenerati ve power [W] Built-in regenerative resist or MR- RB1H-4 [82 Ω] (Note 1) MR- RB3M-4 [120 Ω] (Note 1) MR- RB3G-4 [47 Ω] (Note …

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11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 10
11.2 Regenerative options
CAUTION
Do not use servo amplifiers with regenerative options other than the combinations
specified below.
Otherwise, it may cause a fire.
11.2.1 Combination and regenerative power
The power values in the table are resistor-generated powers and not rated powers.
(1) 200 V class
Servo
amplifier
Regenerative power [W]
Built-in
regenerative
resistor
MR-RB032
[40 Ω]
MR-RB12
[40 Ω]
MR-RB30
[13 Ω]
MR-RB3N
[9 Ω]
MR-RB31
[6.7 Ω]
MR-RB32
[40 Ω]
(Note 1)
MR-RB50
[13 Ω]
(Note 1)
MR-RB5N
[9 Ω]
(Note 1)
MR-RB51
[6.7 Ω]
MR-J4-10B
(-RJ)
30
MR-J4-20B
(-RJ)
10 30 100
MR-J4-40B
(-RJ)
10 30 100
MR-J4-60B
(-RJ)
10 30 100
MR-J4-70B
(-RJ)
20 30 100 300
MR-J4-100B
(-RJ)
20 30 100 300
MR-J4-200B
(-RJ)
100 300 500
MR-J4-350B
(-RJ)
100 300 500
MR-J4-500B
(-RJ)
130 300 500
MR-J4-700B
(-RJ)
170 300 500
Servo
amplifier
(Note 2) Regenerative power [W]
External regenerative
resistor (accessory)
MR-RB5R
[3.2 Ω]
MR-RB9F
[3 Ω]
MR-RB9T
[2.5 Ω]
MR-J4-11KB
(-RJ)
500 (800)
500
(800)
MR-J4-15KB
(-RJ)
850 (1300)
850
(1300)
MR-J4-22KB
(-RJ)
850 (1300)
850
(1300)
Note 1.
A
lwa
y
s install a coolin
g
fan.
2. Values in parentheses assume the installation of a coolin
g
fan.
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 11
(2) 400 V class
Servo amplifier
Regenerative power [W]
Built-in
regenerative
resistor
MR-
RB1H-4
[82 Ω]
(Note 1)
MR-
RB3M-4
[120 Ω]
(Note 1)
MR-
RB3G-4
[47 Ω]
(Note 1)
MR-
RB5G-4
[47 Ω]
(Note 1)
MR-
RB34-4
[26 Ω]
(Note 1)
MR-
RB54-4
[26 Ω]
(Note 1)
MR-
RB3U-4
[22 Ω]
(Note 1)
MR-
RB5U-4
[22 Ω]
MR-J4-60B4(-RJ) 15 100 300
MR-J4-100B4(-RJ) 15 100 300
MR-J4-200B4(-RJ) 100 300 500
MR-J4-350B4(-RJ) 100 300 500
MR-J4-500B4(-RJ) 130 300 500
MR-J4-700B4(-RJ) 170 300 500
Servo amplifier
(Note 2) Regenerative power [W]
External
regenerative
resistor
(accessory)
MR-RB5K-4
[10 Ω]
MR-RB6K-4
[10 Ω]
MR-J4-11KB4(-RJ) 500 (800) 500 (800)
MR-J4-15KB4(-RJ) 850 (1300) 850 (1300)
MR-J4-22KB4(-RJ) 850 (1300) 850 (1300)
Note 1.
A
lwa
y
s install a coolin
g
fan.
2. Values in parentheses assume the installation of a coolin
g
fan.
(3) 100 V class
Servo amplifier
Regenerative power [W]
Built-in
regenerative
resistor
MR-RB032
[40 Ω]
MR-RB12
[40 Ω]
MR-J4-10B1(-RJ) 30
MR-J4-20B1(-RJ) 10 30 100
MR-J4-40B1(-RJ) 10 30 100
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 12
11.2.2 Selection of regenerative option
A regenerative option for a horizontal axis can be selected with the rough calculation shown in this section.
To select a regenerative option precisely, use the capacity selection software.
(1) Rotary servo motor
(a) Regenerative energy calculation
Servo motor
Moving part
N
V
W
L
F
C
2)
1)
V
3)
4)
Forward
rotation
6)
5) 7)
Reverse
rotation
8)
Time
Feed speed of moving part
t
psa1 t1 tpsd1 t2 tpsa2 t3 t4tpsd2
V: Feed speed of moving part [mm/min]
N: Servo motor speed (N = V/ΔS) [r/min]
Δ
S: Travel distance per servo motor
revolution (ΔS = P
B
)
[mm/rev]
P
B
: Ball screw lead [mm]
L
B
: Ball screw length [mm]
D
B
: Ball screw diameter [mm]
W
L
: Moving part mass [kg]
F
C
: Load antidrag setting [N]
T
L
: Load torque converted into equivalent
value on servo motor shaft [N•m]
[N•m]
η: Drive system efficiency
µ: Friction coefficient
J
L
: Load moment of inertia converted into
equivalent value on servo motor shaft
[kg•cm
2
]
J
M
: Moment of inertia of the servo motor [kg•cm
2
]
π: Pi constant
g: Gravitational acceleration [m/s
2
]