First TwinCAT PLC Project on a Beckhoff IPC
Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.
Manufacturer: Mitsubishi Electric
Product No.: HG-SR352BJ
Country of origin:United States
Product Type: AC Servo Motors
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Delivering robust dynamic performance in demanding industrial motion control systems, the Mitsubishi Electric HG-SR352BJ functions as a high-capacity rotary servo motor within the HG-SR Series. Engineered with a 3.5 kW rated output and a rated speed of 2000 r/min, this medium-inertia unit features an integrated electromagnetic brake and oil seal to guarantee positioning retention and environmental protection during vertical axis or high-load operations.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | HG-SR352BJ |
| Series Name | HG-SR |
| Rated Output | 3.5 kW |
| Rated Speed | 2000 r/min |
| Rated Current | 14 A |
| Maximum Torque | 50.1 Nm |
| Electromagnetic Brake | Integrated (Holding Brake) |
| Oil Seal | Integrated |
| Insulation Class | Class 155 (F) |
| Vibration Rank | V10 |
| Atmospheric Environment | Indoors, free of corrosive/flammable gas, oil mist, and dust |
| Motor Net Weight | 22.0 kg |
| Shipping Weight (Calculated) | 23.0 kg |
The HG-SR352BJ is fully matched with the Mitsubishi MELSERVO-J4 amplifier range, specifically the MR-J4-350A and MR-J4-350B drive modules. When upgrading from legacy HC-SFS series models (such as the HC-SFS352B), verify mounting depth adjustments and encoder adapter cable configurations, as physical connector interfaces have changed.
Always ensure that the electromagnetic brake is used strictly for holding and not dynamic braking. Attempting to use the brake to decelerate a moving load will result in premature wear of the internal friction plates and eventual positioning failure. Additionally, ensure the oil seal is regularly inspected in environments where high-temperature gear fluid accumulates near the shaft flange.
Due to the high-frequency switching cycles of the MR-J4 amplifier, the motor power cable and the encoder cable must run through separate shielded conduits to prevent signal corruption. Always ground the motor frame directly to the common cabinet backplate using a low-impedance grounding strap to prevent ground loop currents from interfering with the absolute encoder feedback.
Ensure all AC main power lines feeding the servo amplifier are disconnected and locked out prior to physical installation. Allow the amplifier's internal bus capacitors to discharge fully (verify voltage drop below 50 VDC across terminal blocks) before terminating the power or brake wiring on the HG-SR352BJ.
Mount the motor securely on a rigid metal foundation. Misalignment between the motor shaft and the load can damage internal bearings and cause premature oil seal failure. Use a flexible coupling.
Connect the encoder cable and power-with-brake connectors. Ensure the connector seals are completely seated to preserve the IP protection rating. Do not apply excessive radial or axial load to the connectors during routing.
Prior to starting test runs, verify brake release operation by manually supplying the nominal holding-brake voltage (24 VDC) and checking that the shaft rotates freely.
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Returns & Warranty

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Returns & Warranty
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| Country of origin |
United States
|