11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 5
11.2.2 Selection of 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.
(1) Regenerative energy calculation
M
Friction
torque
Unbalance
torque
T
F
T
U
Servo
motor
speed
Generated
torque
Time
Up
V
tf (1 cycle)
Down
(+)
(-)
(Power running)
(Regenerative)
t
psd2
t
2
t
3
t
4
t
1
t
psa2
t
psd1
t
psa1
1)
2)
3)
4)
5)
6)
7)
8)
Formulas for calculating torque and energy in operation
Regenerative
power
Torque applied to servo motor [N•m]
Energy E [J]
1)
T
1
=
9.55 • 10
4
(J
L
/
ˤ
+ J
M
) • V
•
t
psa1
1
+ T
U
+ T
F
E
1
=
2
0.1047
• V • T
1
• t
psa1
2)
T
2
= T
U
+ T
F
E
2
= 0.1047 • V • T
2
• t
1
3)
T
3
=
9.55 • 10
4
-(J
L
•
ˤ
+ J
M
) • V
•
t
psa2
1
+ T
U
+ T
F
E
3
=
2
0.1047
• V • T
3
• t
psa2
4), 8)
T
4
, T
8
= T
U
E
4
, E
8
0 (No regeneration)
5)
T
5
=
9.55 • 10
4
(J
L
/
ˤ
+ J
M
) • V
•
t
psd2
1
- T
U
+ T
F
E
5
=
2
0.1047
• V • T
5
• t
psd2
6)
T
6
= -T
U
+ T
F
E
6
= 0.1047 • V • T
6
• t
3
7)
T
7
=
9.55 • 10
4
-(J
L
•
ˤ
+ J
M
) • V
•
t
psd2
1
- T
U
+ T
F
E
7
=
2
0.1047
• V • T
7
• t
psd2
From the calculation results in 1) to 8), find the absolute value (Es) of the sum total of negative energies.
Summary of Contents for MELSERVO-JE MR-JE-100A
Page 23: ...1 FUNCTIONS AND CONFIGURATION 1 12 MEMO ...
Page 29: ...2 INSTALLATION 2 6 MEMO ...
Page 91: ...3 SIGNALS AND WIRING 3 62 MEMO ...
Page 171: ...5 PARAMETERS 5 44 MEMO ...
Page 195: ...6 NORMAL GAIN ADJUSTMENT 6 24 MEMO ...
Page 221: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 26 MEMO ...
Page 249: ...8 TROUBLESHOOTING 8 28 MEMO ...
Page 255: ...9 DIMENSIONS 9 6 MEMO ...
Page 263: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 293: ...11 OPTIONS AND PERIPHERAL EQUIPMENT 11 30 MEMO ...
