Mitsubishi MR-J3-500BS4: 5kW High-Performance Servo Amplifier

Control powerful industrial axes with advanced safety features. The Mitsubishi MR-J3-500BS4 is a 5-kilowatt servo amplifier in the 400V class. It combines high power output with integrated drive safety functions. This drive is built for demanding applications requiring reliable, high-torque motion control.

Detailed Technical Specifications

• Product Model: Mitsubishi MR-J3-500BS4 (MELSERVO J3 Series).
• Power Rating: 5000 W (5 kW) rated output, 14 A rated current.
• Power Supply: 380-480V AC, 3-phase input (400V Class).
• Communication: SSCNET III/H high-speed fiber optic motion network.
• Built-in Features: Dynamic brake, regenerative resistor, and integrated drive safety functions.
• Operating Temperature: 0°C to +55°C ambient.
• Safety Standards: Designed to support functional safety configurations (refer to manual for specific SIL/PL ratings).

Installation & System Integration

• Power Requirements: Requires a stable 3-phase 400V class power supply. Ensure facility voltage is within the 380-480V AC range.
• Motor Compatibility: Pairs with Mitsubishi HC-SF, HC-RF, and HC-UF series 400V class servo motors of corresponding power (5kW).
• Safety Configuration: The integrated safety functions (like Safe Torque Off - STO) require proper configuration and wiring to safety devices (e.g., door switches, E-stops) via the drive's dedicated safety terminals.
• Cooling: High power output necessitates adequate cooling. Ensure sufficient airflow in the control cabinet and consider ambient temperature conditions.
• Network Integration: Connects via fiber optic cable to a Mitsubishi motion controller (e.g., Q/R series) for centralized programming and control.

Packaging & Support Details

• The servo amplifier is shipped as a single unit in protective packaging.
• This high-power drive is covered by our standard warranty terms.
• Global express shipping is available via FedEx, UPS, and DHL.

Expert FAQs

• What specific safety functions are typically "integrated"?
  Common functions include Safe Torque Off (STO), Safe Stop 1 (SS1), and Safe Stop 2 (SS2). These functions safely disable motor torque or bring the axis to a controlled stop via a safety-rated circuit within the drive itself.
• Is the built-in regenerative resistor sufficient for all applications?
  For the built-in resistor, it handles typical regenerative energy. For high-inertia loads or very frequent start/stop cycles (high duty cycle), an external, higher-capacity regenerative resistor unit is often required and can be connected to the drive.
• What is the benefit of the 400V class over 200V class drives?
  For the same power output, a 400V drive draws lower current (Amps). This means smaller gauge power cables, reduced line losses, and often more efficient operation, especially in facilities with 400V infrastructure.
• Can this drive operate on a 480V nominal system?
  Yes, the 380-480V AC range explicitly includes 480V. This is common in North American industrial facilities. Always verify the actual supply voltage at the installation point is within this range.
• How does SSCNET III/H benefit a multi-axis system?
  It allows precise synchronization of multiple axes (like in a robot or CNC) with minimal communication delay (jitter). Commands from one central controller reach all drives almost simultaneously, enabling complex coordinated motion.

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