Mitsubishi MR-J3-11KB4-LR | 22-bit Absolute Encoder
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Mitsubishi MR-J3-11KB4-LR Servo Drive: High-Resolution Precision
Ultimate accuracy for demanding automation. The Mitsubishi MR-J3-11KB4-LR is a 1.1kW servo drive featuring a 22-bit absolute encoder. It delivers exceptional positioning precision and operates on 400V AC power.
Key Advantages
- Ultra-High Resolution: 22-bit absolute encoder provides over 4 million positions per revolution for extreme accuracy.
- High Voltage Operation: Direct 3-phase 400V AC input simplifies connection to industrial power networks.
- Flexible I/O: Digital I/O, analog inputs, and pulse train inputs allow for versatile system integration.
- Active Cooling: Forced air cooling ensures consistent performance during continuous, demanding cycles.
- Robust Environment: Operates in a wide humidity range (10-90% RH) and temperatures from 0°C to 55°C.
Technical Specifications
Brand: Mitsubishi Electric
Full Model: MR-J3-11KB4-LR
Series: MELSERVO-J3 Series Servo Drive
Rated Output Power: 1.1 kW (1100 Watts)
Power Supply: 3-phase 400V AC, 50/60 Hz
Encoder System: High-Resolution 22-bit Absolute Encoder
Control Modes: Position, Speed, Torque Control (typical for series)
Inputs/Outputs: Digital I/O, Analog Inputs, Pulse Train Inputs
Cooling Method: Forced Air Cooling (Fan-Cooled)
Operating Temperature: 0°C to +55°C
Operating Humidity: 10% to 90% RH (non-condensing)
Enclosure: Open Structure (IP00)
Communication: RS-422 / SSCNET III (typical for series)
Protection Functions: Standard overcurrent, overload, and overvoltage protection.
Installation & Configuration
Install the MR-J3-11KB4-LR in a protected control cabinet. Connect to a three-phase 400V AC power source. Ensure the cooling fan has unobstructed airflow. Use the high-resolution absolute encoder for precise positioning; the motor will know its exact position immediately on power-up. Configure the digital I/O for control signals and the analog/pulse inputs for command reference based on your application needs.
Expert FAQs
What is the benefit of a 22-bit absolute encoder?
It provides extremely fine position feedback, enabling sub-arc-minute accuracy. This is critical for applications like semiconductor manufacturing, precision inspection, or high-end CNC machining.
What does the "LR" in the model number likely signify?
"LR" often indicates a specific product version, potentially with a long cable option, a regional specification, or a particular feature set like enhanced resolution.
Can this drive operate without a battery for the absolute encoder?
Yes, true absolute encoders in Mitsubishi systems often use a multi-turn data retention method that does not require a battery to maintain position data.
Is the forced cooling always required?
For this power rating and precision class, forced cooling is necessary to maintain thermal stability, which directly impacts the accuracy and longevity of the system.
Who should use this high-precision drive?
It is designed for applications where positioning accuracy and repeatability are paramount, such as in precision assembly, optical positioning, laser processing, and high-end robotics.
Package & Warranty
Package Includes:
1 x MR-J3-11KB4-LR Servo Drive
1 x Instruction Manual
Warranty: Protected by a 12-month warranty.
Shipping: Shipped internationally via FedEx, UPS, and DHL.
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