Pyramid Overview: Core Value First
Author: Oiltech Controls
The Mitsubishi MR-J3-700A servo amplifier delivers 7kW rated power and 37A output for demanding automation tasks. It provides 170VAC motor output and operates from 200-230VAC industrial grids. I apply sine-wave PWM with current regulation to achieve stable precision. The MR-J3-700A supports RS-422 communication and integrates a dynamic brake for safe high-speed motion control.
Key Technical Specifications
- Brand: Mitsubishi | Series: MELSERVO-J3 | Model: MR-J3-700A
- Rated Output: 7kW / 37A | Output Voltage: 170VAC (3-phase)
- Main Supply: 200-230VAC, 3-phase, 28.9A, 50/60Hz
- Voltage Range: 170-253VAC permissible fluctuation
- Control Circuit: 200-230VAC, 1-phase, 0.3A, 45W power draw
- Communication: RS-422 differential transmission
- Control Method: Sine-wave PWM + current regulation
- Operating Range: 0 to +55°C industrial ambient
- Frame Structure: IP00 force-cooled open architecture
- Interface Supply: 24VDC external feed
Performance & Application Highlights
- I optimize CNC motion, robotics, and fast-cycle automation.
- I maintain torque consistency with clean sine-wave output.
- I stabilize servo accuracy during voltage fluctuation swings.
- I support command integrity through RS-422 communication.
- I fit production lines requiring responsive motion profiles.
Installation Guidance
- Install in ventilated control panels for proper airflow.
- Use shielded cabling to minimize EMI influence.
- Ground the cabinet before energizing main power.
- Match servo motor rating to MR-J3-700A power class.
- Tighten terminals to rated torque before commissioning.
Package Contents
- One Mitsubishi MR-J3-700A servo amplifier
- Mounting screw set and power terminals
- RS-422 interface terminal plate
- Basic wiring reference sheet
Shipping Information
- FedEx / UPS / DHL international dispatch available
- ESD-protected and foam-reinforced packaging
- Tracking shared upon fulfillment
FAQ
- Does it support 7kW servo motors?
Yes, I support 7kW and 37A rated operation. - Is dynamic braking included?
Yes, a built-in dynamic brake sits in the power stage. - Does it handle high-speed positioning?
Yes, RS-422 improves response and feedback speed. - Can it run from 200-230VAC 3-phase grids?
Yes, I operate directly on 200-230VAC systems.
Contact & Ordering
- Email: info@oiltechcontrols.com
- WhatsApp: +86 158 8020 0923
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