Description
The Mitsubishi MR-J4-70A servo amplifier is a highly capable MELSERVO-J4 series servo amplifier designed for precise motor control. This servo amplifier can handle a fuse current rating of 20A and a fuse voltage rating of 300VAC for its main circuit power supply. Its instantaneous maximum output rating is 2625W, and its tolerance rating against instantaneous power failure is 1150W, ensuring reliable performance even with fluctuating power. For smooth and efficient operation, the MR-J4-70A supports an inrush current rating of 34A from the main circuit and 20A to 30A from the control circuit. Additionally, its built-in regenerative resistance rating is 20W, and it supports energy efficiency during deceleration and regenerative processes. The servo amplifier exhibits an impressive inverse efficiency rating of 85%. With a capacitor charging capacity of 18J, the MR-J4-70A ensures stable operation by providing sufficient energy storage during dynamic movement. Its rated output voltage value is 170 VAC (3-phase), and its rated output current value is 5.8 A. It supports robust motor control in various applications. The MR-J4-70A servo amplifier’s main circuit voltage can be 3-phase or 1-phase AC voltage, and its main circuit voltage range is 200 to 240 VAC at 50 Hz/60 Hz. The main circuit current rating is 3.8 A. The control circuit voltage is 1-phase voltage, and the control circuit voltage range is 200 to 240 VAC at 50/60 Hz, with a rated current of 0.2 A. The control circuit can handle voltage fluctuations ranging from 170 to 264 VAC (1-phase). With a power consumption rating of 30W, the control circuit operates efficiently while providing the necessary signals for precise servo control. The MR-J4-70A servo amplifier supports Sine-wave PWM control and a current control system for accurate motor positioning and smooth operation. The servo amplifier incorporates a dynamic brake, enhancing safety and stability during deceleration. It can handle maximum input pulse frequencies of 4 Mpulses/s (for the differential receiver) and 200kpps (for the open collector), enabling responsive and dynamic motor control. The MR-J4-70A has a force-cooled, open structure with an IP20 rating that is suitable for indoor use.
