MR-J4-70A-RJ

At the heart of the Mitsubishi MELSERVO MR-J4 series, the MR-J4-70A-RJ model serves as a versatile digital AC servo amplifier. This device offers a rated output power of 0.75 kW, translating to 750 watts of effective energy management. Its design delivers a rated output current of 5.8 A while maintaining a 3-phase output voltage of 170 V AC. The supply voltage options include both 200 to 240 V AC in single or three-phase setups, as well as a 283 to 340 V DC range.

The MR-J4-70A-RJ is engineered to control one axis, allowing precise motion control and response. It incorporates a user-friendly control interface that accepts generic pulse train inputs or analog voltage signals, enhancing compatibility with various control systems. An essential feature of this amplifier is its built-in dynamic brake that aids in efficient stopping and smooth performance.

For feedback, the device utilizes a 22-bit absolute and incremental encoder, capable of resolving up to 4,194,304 pulses per revolution. This level of accuracy ensures tight control over motor positioning. Furthermore, its speed frequency response reaches 2.5 kHz for optimal speed loop performance.

Communications are facilitated through RS-422 or RS-485 protocols, allowing for effective data exchange and integration into networked systems. The amplifier is rated at IP20 for protection, confirming its suitability for indoor environments. It functions under a fully closed-loop control system, which can be configured in either 2-wire or 4-wire types to adapt to your specific application needs. Forced ventilation cooling is employed to maintain operational integrity under varying loads and conditions.