Torque Characteristics - Mitsubishi Electric Melservo HF-KN Series Instruction Manual

6. HF-KN SERIES
Note 1. When the power supply voltage drops, the output and the rated speed cannot be guaranteed.
2. If the load to motor inertia ratio exceeds the indicated value, contact your local sales office.
3. Except for the shaft-through portion.
4. In the environment where the servo motor is exposed to oil mist, oil, or water, the servo motor of the standard specifications
may not be usable. Please contact your local sales office.
5. The following figure shows the vibration directions. 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
6. V10 indicates that the amplitude of a single servo motor is 10 μm or less. The following figure shows the servo motor mounting
position for measurement and the measuring position.
Servo motor
Top
Bottom
7. The following shows permissible load for the shaft. Do not subject the shaft to load greater than the value in the specifications
list. The value assumes that the load is applied independently.
L

6.3.2 Torque characteristics

When the power supply input of the servo amplifier are 3-phase 200 V AC or 1-phase 230 V AC, the torque
characteristic is indicated by the heavy line.
1000
100
10
0 1000 2000 3000 4000
Speed [r/min]
Measuring position
Radial load
L: Distance from flange mounting surface to load center
Thrust load
POINT
For the system where the unbalanced torque occurs, such as a vertical axis
system, it is recommended that the unbalanced torque of the machine be kept at
70% or less of the motor's rated torque.
[HF-KN13] [HF-KN23]
1.2
1.0
0.8
Short-duration
running range
0.6
0.4
Continuous
0.2
running range
0
0 1000 2000 3000 4000 4500
Speed [r/min]
4500
[HF-KN43]
2.5 4.5
4.0
2.0
3.5
3.0
1.5
Short-duration
2.5
running range
2.0
1.0
1.5
1.0
0.5
Continuous
0.5
running range
0
0 1000 2000 3000 4000 4500
Speed [r/min]
6 - 3
[HF-KN73]
8.0
7.0
6.0
5.0
Short-duration
running range
4.0
3.0
2.0
Continuous
1.0
running range
0 0
0 1000 2000 3000 4000 4500 0
Speed [r/min]
Short-duration
running range
Continuous
running range
1000 2000 3000 4000 4500
Speed [r/min]