
The Mitsubishi MR-J2S-100A-S004 is a general-purpose AC servo amplifier from the MELSERVO J2-Super series, designed for precise motor control in industrial automation and control systems. This 1 kW servo drive employs sine-wave PWM control and current control methodology to deliver accurate position, speed, and torque control capabilities. The amplifier converts command signals from controllers into precise voltage and current outputs required to drive servo motors with high accuracy. It supports multiple control modes including position control, speed control, and torque control, offering versatility across diverse industrial applications. The unit features a built-in dynamic brake and comprehensive protection functions including overcurrent shut-off, regenerative overvoltage protection, overload protection, encoder error detection, and undervoltage/instantaneous power failure protection. The MR-J2S-100A-S004 includes RS-232C/RS-422 PC interface capability, a 5-digit LED display, and multiple digital and analog I/O options for flexible system integration in manufacturing, packaging, material handling, and precision positioning applications.
Item Details
- Brand Name: Mitsubishi
- Manufacturer: Mitsubishi Electric Corporation
- Item Type Name: AC Servo Amplifier
- Product Family / Series: MELSERVO J2-Super Series
- Model Number: MR-J2S-100A-S004
- Base Model: MR-J2S-100A
- Interface Type: Universal Interface
Product Specifications
- rated_output_power: 1 kW
- supply_voltage: 3-phase 200-230 VAC or 1-phase 230 VAC
- frequency: 50/60 Hz
- permissible_voltage_fluctuation: 170-253 VAC
- permissible_frequency_fluctuation: ±5%
- output_voltage: 170 V
- output_frequency_range: 0-360 Hz
- control_system: Sine-wave PWM control, current control method
- dynamic_brake: Built-in
- control_modes: Position control, speed control, torque control
- max_input_pulse_frequency: 500 kpps (differential receiver), 200 kpps (open collector)
- command_pulse_multiplying_factor: Electronic gear A: 1-65535, 131072; B: 1-65535, 1/50
- speed_command_input: 0-10 VDC
- torque_command_input: 0-8 VDC
- input_impedance: 10-12 kΩ
- digital_inputs: 24 VDC sink/source (EMG, LSP, LSN, SON, RES, PC/ST1/RS2, TL/ST2/RS1, SP2)
- communication_interface: RS-232C/RS-422
- display: 5-digit LED display
- parameter_adjustment: 4 keys/buttons
- inrush_current_main_circuit: 120 A
- inrush_current_control_circuit: 100-130 A
Additional Details
- Lifecycle Status: Discontinued
- Protection Functions: Overcurrent shut-off, regenerative overvoltage shut-off, overload shut-off (electronic thermal), servo motor overheat protection, encoder error protection, regenerative error protection, undervoltage/sudden power outage protection, overspeed protection, excessive error protection
- Encoder Compatibility: Incremental or absolute encoders
- Compatible Servo Motors: HC-SFS81, HC-SFS102, HC-SFS103, HC-LFS102 series
- Mounting Clearance Requirements: 40 mm above, 10 mm each side
- Ambient Operating Temperature: 0 to +55 °C
- Storage Temperature: -20 to +65 °C
- Relative Humidity: ≤90% (non-condensing)
- Cooling Method: Natural convection (no fan for 100A model)
Measurements
- Weight: 1.7 kg
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
Regardless of where the product is shipping from, PLC Direct covers all duties for US-based shipping destinations. For non-US-based shipping destinations, customers are responsible for duties as appropriate.
PLC Direct's focus is on balancing price with lead time. Some but not all products can be expedited. If you have questions about delivery ETAs, please contact our team.

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