Mitsubishi Electric MELSERVO-JN Series, Инструкция по эксплуатации

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11 - 21
11. OPTIONS AND PERIPHERAL EQUIPMENT
11.2 Regenerative options
CAUTION
The specified combinations of regenerative 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.
Servo amplifier
Regenerative power[W]
Built-in regenerative
resistor
MR-RB032
[40 ]
MR-RB12
[40 ]
MR-JN-10A(1) 30
MR-JN-20A(1) 10 30 100
MR-JN-40A 10 30 100
(2) Selection of the regenerative 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 option.
(a) Regenerative energy calculation
Friction
torque
Unb
ala
nce
to
rqu
e
T
F
T
U
M
( )
( )
t
1
t
2
t
3
T
psa1
T
psd1
T
psa2
T
psd2
t
4
tf(1 cycle)
No
Up
Time
Se
rv
o
mo
to
r s
pee
d
G
ene
ra
te
d
to
rq
ue
1)
2) 4)
5)
3)
6)
8)
7)
(Driving)
(Regenerative)
Down
Formulas for calculating torque and energy in operation
Regenerative power Torque applied to servo motor [N٠m] Energy [J]
1)
T
1
= (J
L
J
M
) N
0
9.55 x 10 4
1
T
psa1
T
U
T
F
E
1
= 0.1047
2
N
0
T
1
T
psa1
2)
T
2
= T
U
+ T
F
E
2
= 0.1047 N
0
T
2
t
1
3)
T
3
= (J
L
J
M
) N
0
9.55 x 10 4
1
T
psa1
T
U
T
F
E
3
= 0.1047
2
N
0
T
3
T
psd1
4), 8)
T
4
= T
U
E
4
0(No regeneration)
5)
T
5
= (J
L
J
M
) N
0
9.55 x 10 4
1
T
psa2
T
U
T
F
E
5
= 0.1047
2
N
0
T
5
T
psa2
6)
T
6
= T
U
T
F
E
6
= 0.1047 N
0
T
6
t
3
7)
T
7
= (J
L
J
M
) N
0
9.55 x 10 4
1
T
psa2
T
U
T
F
E
7
= 0.1047
2
N
0
T
7
T
psd2
From the calculation results in 1) to 8), find the absolute value (Es) of the sum total of negative energies.