Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 320

12. SERVO MOTOR
6. The vibration direction is as shown in the figure. The value is the one at the part that indicates the maximum value (normally the
opposite-to-load side bracket). When the servo motor stops, fretting is likely to occur at the bearing. Therefore, suppress the
vibration to about half of the permissible value.
Servo motor
X
Y
Vibration
7. V-10 indicates that the amplitude of a servo motor alone is 10 m or less. The following figure shows the servo motor installation
position for measurement and the measuring position.
Servo motor
Top
Measuring
Bottom
8. For the symbols in the table, refer to the following diagram. Do not subject the shaft to load greater than these values in the
table. These values are applicable when the loads are applied independently.
L
Radial load
Thrust load
(2) Torque characteristics
When the input power supply specifications of the servo amplifier are 1-phase 230VAC, the torque
characteristics are indicated by heavy lines. Part of the torque characteristics are indicated by broken lines for
the 1-phase 100VAC power supply and by thin lines for the 1-phase 200VAC power supply.
[HF-KN053]
0.6
0.5
0.4
Short-duration
running region
0.3
0.2
0.1 Continuous
running region
0
0 1000 2000 3000 4000 4500
Speed [r/min]
1000
100
10
0 1000 2000 3000 4000 5000 6000 7000
Speed [r/min]
position
L : Distance from flange mounting surface to load center
POINT
For the system where the unbalanced torque occurs, such as a vertical axis
system, the unbalanced torque of the machine should be kept at 70% or less
of the rated torque.
[HF-KN13]
1.2
1
0.8
Short-duration
running region
0.6
0.4
0.2
running region
0
0 1000 2000 3000 4000 4500
Speed [r/min]
[HF-KN23]
2.5
2
1.5
1
0.5
Continuous
0
0
12 - 17
[HF-KN43]
4.5
4
3.5
3
2.5
Short-duration
running region 2
1.5
1
Continuous
0.5
running region
0
1000 2000 3000 4000 4500
Speed [r/min]
Short-duration
running region
Continuous
running region
0 1000 2000 3000 4000 4500
Speed [r/min]