Mitsubishi Electric TM-RFM, Instruction Manual

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7. TM-RFM SERIES
7 - 5
Note 1. When the power supply voltage drops, the output and the rated speed cannot be guaranteed.
2. If the load inertia moment ratio exceeds the indicated value, contact your local sales office.
3. To configure the absolute position detection system, always connect the battery and absolute position storage unit to the servo
amplifier. For details of the battery, refer to each servo amplifier instruction manual. Refer to section 6.3 for details of the
absolute position storage unit.
4. Shaft-through portion of the rotor and the connector area are excluded. IP classifies the degrees of protection provided against
the intrusion of solid objects and water in electrical enclosures.
5. In the environment where the direct drive motor is exposed to oil mist, oil, and water, a standard specification direct drive
motor cannot be used. Provide measures to prevent dust and/or water on the machine side.
6. The following figure shows the vibration direction. The indicated values are the maximum values. When the direct drive motor
stops, fretting is likely to occur at the bearing. Therefore, suppress the vibration to about the half the permissible value.
X
Y
7. V10 indicates that the amplitude of a direct drive motor alone is 10 μ m or less. The following figure shows the direct drive
motor installation position for measurement and the measuring position.
Measuring position
8. Axial and moment loads, which are applied to the direct drive motor's rotor (output shaft) during operation, can be calculated
as below. The axial and moment loads must be maintained to be equal to or below the permissible value.
F (Outer force)
Axial load
= F + load mass
L F (Outer force)
Axial load
= F + load mass
Moment load
= F × L
L
F (Outer force)
A
Bearing
Axial load
= Load mass
Moment load
= F × (L + A)
Direct drive motor
Motor OD
[mm]
Dimension
A
[mm]
TM-RFM002C20
TM-RFM004C20
TM-RFM006C20
φ 130 19.1
TM-RFM006E20
TM-RFM012E20
TM-RFM018E20
φ 180 20.2
TM-RFM012G20
TM-RFM048G20
TM-RFM072G20
φ 230 24.4
TM-RFM040J10
TM-RFM120J10
TM-RFM240J10
φ 330 32.5
9. Absolute accuracy changes depending on the mounting condition of the load and the surrounding environment.
10. Follow the restrictions in section 2.10 when using this product at altitude exceeding 1000 m and up to 2000 m above sea level.