Mitsubishi Electric Sensorless Servo Global PM Motor EM-A Series (with Gear Reducer)
EM-A / Mitsubishi Electric Corporation (Official website) / Listed on page 1 of the document
An energy-saving IE5-compliant PM motor offering high-precision speed control and positioning with encoder-free sensorless control. Available in gear reducer models from 0.4 to 2.2 kW.
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Specifications
| Output | 0.4～2.2 kW |
|---|---|
| Number of poles | 4 (0.4 and 0.75 kW) / 6 (1.5 and 2.2 kW) |
| Rated frequency | 100 (0.4 and 0.75 kW) / 150 (1.5 and 2.2 kW) Hz |
| Motor rated rotational speed | 3000 r/min |
| Motor maximum rotational speed | 4000 r/min |
| Motor maximum torque | 200 % |
| Positioning accuracy | 200 p/rev |
| Speed fluctuation rate | ±0.05 % |
| Speed control range | 1:1000 |
| Output shaft rotational speed | 100～600 r/min |
| Protection structure | Indoor type (IP44) |
| Enclosure structure | Totally enclosed, self-cooled type |
| Ambient temperature | 0～+40 ℃ |
| Relative humidity | 90 or less %RH |
| Altitude | 1000 or less m |
| Heat resistance class | 130（B）/ 155（F） |
| Brake specification | DC spring-applied brake type (DC24V) |
| Moment of inertia J (without brake) | 3.72～16.5 ×10−4kg・m2 |
| Mass (0.4 kW, without brake) | 7.9 kg |
| Mass (2.2 kW, with brake) | 30.3 kg |
Description
Used in combination with Mitsubishi Electric general-purpose inverters (FR-A800, FR-E800, FR-D800). PM sensorless vector control achieves a speed fluctuation rate of ±0.05% and a speed control range of 1:1000 (1:10 for FR-D800). The servo lock function generates holding torque when stopped. Employs a salient-pole permanent magnet motor; with FR-A800/FR-E800, positioning is also possible via contact signals or CC-Link. Models compliant with overseas standards (UL/cUL, CE/UKCA) are also available.
Features
- IE5-compliant energy-saving motor
- Stops precisely without sensor (encoder)
- Speed fluctuation rate ±0.05% (with digital input)
- Maximum torque 200%
- Positioning accuracy 200 p/rev
- Overseas standard specifications compliant with UL/cUL and CE/UKCA
Applications
- Semiconductor manufacturing lines
- Liquid crystal manufacturing lines
- High-precision conveyance equipment
FAQ
- Q. Which Mitsubishi Electric inverters can the EM-A Series be used with?
- A. It is used in combination with Mitsubishi Electric general-purpose inverters (FR-A800, FR-E800, FR-D800).
- Q. Can the EM-A Series perform positioning and speed control without an encoder? What are the speed fluctuation rate and speed control range?
- A. Using encoder-free PM sensorless vector control, it achieves a speed fluctuation rate of ±0.05% and a speed control range of 1:1000 (1:10 for FR-D800). The positioning accuracy is 200 p/rev.
- Q. What are the output, number of poles, rated frequency, and motor rated rotational speed of the EM-A Series?
- A. The output is 0.4 to 2.2 kW. The number of poles is 4 (0.4 and 0.75 kW) / 6 (1.5 and 2.2 kW), the rated frequency is 100 Hz (0.4 and 0.75 kW) / 150 Hz (1.5 and 2.2 kW), and the motor rated rotational speed is 3000 r/min.
- Q. Can the EM-A Series generate holding force when stopped? What are the brake specifications?
- A. The servo lock function generates holding torque when stopped. The brake specification is a DC spring-applied type (DC24V).
- Q. What are the protection structure and environmental conditions of the EM-A Series?
- A. The protection structure is indoor type (IP44) and the enclosure is totally enclosed self-cooled type. The ambient temperature is 0 to +40 °C, relative humidity is 90 %RH or less, and altitude is 1000 m or less.
Written by AI based on the content of the source documents.
Source documents
- Catalog 三菱電機センサレスサーボ グローバルPMモータ EM-Aシリーズ 4 pages Open page 1