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MR-J3-70B
The MR-J3-70B is a servo amplifier developed by Mitsubishi in the MELSERVO MR-J3 series. It operates efficiently within a power supply range of 200 to 230 VAC, making it suitable for various industrial applications. The unit supports a control circuit powered by 200 to 230 VAC at 50/60 Hz and consumes 30 watts for its operation.
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Technical specifications for MR-J3-70B
| Manufacturer | Mitsubishi |
|---|---|
| Product Type | Servo Amplifier |
| Product Line | MELSERVO MR-J3 |
| Part Number | MR-J3-70B |
| Weight | 3.06 lbs (1.39 kg) |
| Power Supply Rating | 200 to 230 VAC |
| Control Circuit Power Supply | 200 to 230 VAC, 1-phase, 50/60 Hz |
| Control Circuit Power Consumption | 30 Watts |
| Interface Power Supply | 24 VDC |
| Control Method | Sine-wave PWM control, current control method |
| Dynamic Brake | Built-in brake |
| Structure (IP rating) | Self-cooling, open (IP00) |
| Ambient Operating Temp. | 0 to 55°C |
| Inrush Current | 54A (main circuit), 20 to 30A (control circuit) |
| Built-in Regenerative Resistor | 20 Watts |
| Inverse Efficiency | 80% efficiency |
| Capacitor Charging | 18 Joules |
The MR-J3-70B servo amplifier from Mitsubishi is designed for precise motion control within the MELSERVO MR-J3 lineup. It accepts a power supply rating of 200 to 230 VAC, offering flexibility for different installations. Featuring a control circuit operational at the same voltage with a frequency of 50/60 Hz, the amplifier's power consumption stands at 30 watts.
This model employs sine-wave PWM control combined with a current control method, enhancing its performance and allowing for smooth operation. A dynamic brake is integrated into the design, providing effective motor deceleration when required. The structure of the MR-J3-70B is self-cooling and classified as IP00, indicating it is an open type without additional environmental protection.
The device operates efficiently at ambient temperatures that range from 0 to 55 degrees Celsius, so it remains versatile in a variety of settings. Notably, it can endure an inrush current of 54A in the main circuit while the control circuit has an inrush current capacity of 20 to 30A. For enhanced performance, a built-in regenerative resistor rated at 20 watts allows for effective energy management within the system.
The amplifier has an inverse efficiency rating of 80%, showcasing its effective power usage, and it is capable of charging capacitors with a total of 18 Joules. Overall, the MR-J3-70B servo amplifier is a reliable component for motion control, enabled by its robust design and effective operational characteristics.
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