Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
Engineered for demanding industrial motion control, the Mitsubishi Electric HG-JR703 AC servo motor delivers high-inertia performance within the MELSERVO-J4 drive ecosystem. This industrial-grade rotary motor is optimized for applications requiring stable torque output and high-capacity load management. Equipped with a high-resolution 22-bit absolute encoder, it provides precise positioning accuracy and feedback reliability, even under severe operating conditions. The robust IP67-rated construction ensures longevity in environments prone to dust, moisture, and non-corrosive oil splashes, making it a standard choice for heavy-duty manufacturing and automation systems.
| Parameter | Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | HG-JR703 |
| Series Name | HG-JR Series (MELSERVO-J4) |
| Rated Output Power | 7.0 kW |
| Rated Speed | 1500 r/min |
| Maximum Speed | 3000 r/min |
| Rated Torque | 44.6 Nm |
| Encoder Type | 22-bit Absolute Encoder |
| IP Protection Rating | IP67 (excluding shaft) |
| Ambient Operating Temperature | 0 to 40 degC |
| Country of Origin | Japan |
| Shipping Weight (Calculated) | 29.0 kg |
The HG-JR703 acts as the direct technical successor to legacy HC-SFS702 series motors. When migrating from legacy series, parameters within the MR-J4 servo amplifier must be reconfigured to match the 22-bit absolute resolution profile. Ensure that the associated power and encoder cables are upgraded to match the modern dual-lock connector design, as pinouts differ from legacy screw-clamp terminals.
Due to the 7.0 kW power class and high-inertia design, the regenerative energy generated during deceleration cycles can be substantial. When designing the control panel, standard internal drive regeneration capacity is frequently exceeded during rapid deceleration cycles. Install an external, properly rated regenerative option resistor (such as the MR-RB137-4) to prevent overvoltage trips (AL.30/AL.33) on the driver. Ensure that there is adequate ventilation around the non-drive end to prevent thermal trip faulting in high duty-cycle operations.
High-resolution encoders are sensitive to electromagnetic interference (EMI). Run the power and encoder cables in separate conduits with a minimum clearance of 30 cm. Verify that the motor frame is grounded directly to the main system PE panel bus using a low-impedance ground strap. For absolute position operation, set parameter PA03 in the MR-J4 amplifier before initiating the homing sequence.
Before performing any wiring or mechanical coupling on the motor, de-energize the main circuit breaker of the servo amplifier. Wait at least 15 minutes for the internal bus capacitors to discharge fully. Verify that the charge lamp on the front of the amplifier is completely off before touching terminals.
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Engineered for demanding industrial motion control, the Mitsubishi Electric HG-JR703 AC servo motor delivers high-inertia performance within the MELSERVO-J4 drive ecosystem. This industrial-grade rotary motor is optimized for applications requiring stable torque output and high-capacity load management. Equipped with a high-resolution 22-bit absolute encoder, it provides precise positioning accuracy and feedback reliability, even under severe operating conditions. The robust IP67-rated construction ensures longevity in environments prone to dust, moisture, and non-corrosive oil splashes, making it a standard choice for heavy-duty manufacturing and automation systems.
| Parameter | Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | HG-JR703 |
| Series Name | HG-JR Series (MELSERVO-J4) |
| Rated Output Power | 7.0 kW |
| Rated Speed | 1500 r/min |
| Maximum Speed | 3000 r/min |
| Rated Torque | 44.6 Nm |
| Encoder Type | 22-bit Absolute Encoder |
| IP Protection Rating | IP67 (excluding shaft) |
| Ambient Operating Temperature | 0 to 40 degC |
| Country of Origin | Japan |
| Shipping Weight (Calculated) | 29.0 kg |
The HG-JR703 acts as the direct technical successor to legacy HC-SFS702 series motors. When migrating from legacy series, parameters within the MR-J4 servo amplifier must be reconfigured to match the 22-bit absolute resolution profile. Ensure that the associated power and encoder cables are upgraded to match the modern dual-lock connector design, as pinouts differ from legacy screw-clamp terminals.
Due to the 7.0 kW power class and high-inertia design, the regenerative energy generated during deceleration cycles can be substantial. When designing the control panel, standard internal drive regeneration capacity is frequently exceeded during rapid deceleration cycles. Install an external, properly rated regenerative option resistor (such as the MR-RB137-4) to prevent overvoltage trips (AL.30/AL.33) on the driver. Ensure that there is adequate ventilation around the non-drive end to prevent thermal trip faulting in high duty-cycle operations.
High-resolution encoders are sensitive to electromagnetic interference (EMI). Run the power and encoder cables in separate conduits with a minimum clearance of 30 cm. Verify that the motor frame is grounded directly to the main system PE panel bus using a low-impedance ground strap. For absolute position operation, set parameter PA03 in the MR-J4 amplifier before initiating the homing sequence.
Before performing any wiring or mechanical coupling on the motor, de-energize the main circuit breaker of the servo amplifier. Wait at least 15 minutes for the internal bus capacitors to discharge fully. Verify that the charge lamp on the front of the amplifier is completely off before touching terminals.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|