Mitsubishi Electric HF-SP702 MELSERVO J3 Series AC Servo Motor

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Manufacturer: Mitsubishi Electric
Product No.: HF-SP702
Country of origin:United States
Product Type: AC Servo Motors
Payment: T/T, Western Union
Weight: 500g
Dimensions: 450 mm x 300 mm x 280 mm
Shipping port: Xiamen
Warranty: 12 months

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Description

Designed to execute precise velocity and torque profiles within heavy industrial environments, the Mitsubishi Electric HF-SP702 delivers dependable mechanical power when integrated into automated drive systems. This medium-inertia AC servo motor is engineered specifically to match the electrical characteristics of the MELSERVO J3 amplifier platform, ensuring rapid response times and minimal settling deviation during high-duty cycling operations.

Features

Medium rotor inertia configuration optimized for stable load matching in applications with fluctuating mechanical loads.
High-resolution absolute/incremental encoder integration to enable ultra-precise closed-loop positioning feedback.
Robust IP67 protective sealing (excluding the shaft-through portion) to withstand harsh oil, dust, and moisture environments.
Standard heavy-duty MS circular connectors for secure power and encoder wiring terminations.

Applications

Multi-axis CNC machining centers and automated metal forming machinery.
High-speed industrial material handling and gantry system positioning.
Heavy-duty packaging and bottling machinery requiring precise speed control.
Automotive welding and assembly line positioning axes.

Technical Specifications

Parameter	Specification
Manufacturer	Mitsubishi Electric
Model Number	HF-SP702
Product Series	MELSERVO J3 Series
Compatible Servo Amplifier	MR-J3-700A / MR-J3-700B / MR-J3-700T
Rated Output Capacity	7.0 kW
Rated Speed	2000 r/min
Maximum Rotation Speed	3000 r/min
Rated Torque	33.4 N-m
Power Facility Capacity	10 kVA
Supply Voltage Class	200 VAC
Enclosure Protection Rating	IP67 (excludes shaft-through portion)
Shipping Weight (Calculated)	33 kg (72.7 lbs)
Package Dimensions (Calculated)	450 mm x 300 mm x 280 mm

Empirical Engineering Insights

Alternative Models & Compatibility

While native to the MR-J3 amplifier series, the HF-SP702 can be migrated to the newer MR-J4 series (e.g., MR-J4-700A) by configuring the drive for J3 compatibility mode. This migration requires designated conversion cables for both the high-resolution encoder line and the main power connector due to differences in physical terminal sizing and pinouts.

Application Pitfalls & Engineering Notes

Operating this motor at continuous high duty cycles requires adequate heat dissipation. Ensure it is bolted to a steel or aluminum mounting flange of at least 400 mm x 400 mm x 20 mm to prevent thermal alarms on the drive. For vertical applications, avoid using this standard model; instead, deploy the brake-equipped variant (HF-SP702B) to prevent load drop during emergency stops or power failures.

Commissioning & Wiring Tips

To eliminate electromagnetic interference (EMI) issues with high-resolution feedback signals, ensure the encoder cable shield is grounded directly to the amplifier cabinet's main backplate. Power cables carrying the high-frequency PWM drive outputs must be routed separately from sensor and control lines, maintaining a minimum physical clearance of 30 cm.

Installation Guidelines

CRITICAL WARNING: Verify that all incoming three-phase AC power sources are completely locked out and tagged out before beginning the installation process. Wait a minimum of 20 minutes after de-energizing to allow the internal bus capacitors of the MR-J3 amplifier to fully discharge (verify zero voltage across the L+ and L- terminals with a calibrated multimeter).

Mechanical Coupling: Align the motor shaft carefully with the load input. Use high-quality flexible couplings to prevent radial or axial force overloads on the motor bearings during operation.

Cable Connection: Securely thread the MS circular connectors for both power and encoder cables. Ensure the rubber O-rings are fully seated within the connector threads to maintain the integrity of the IP67 moisture seal.

Grounding Setup: Terminate the motor ground wire to the designated grounding point on the amplifier base, securing it tightly to prevent high-frequency noise leakage.

Key Features:

#AC Servo Motors #MELSERVO J3

Can I use the HF-SP702 motor with an MR-J4 series amplifier?

Yes, but it requires operating the MR-J4 amplifier in J3 compatibility mode. You must also use specific conversion cables for both the encoder and the motor power connections to adapt to the different terminal physical interfaces.

What external thermal precautions should be taken for this motor?

The motor relies on natural convection and heat dissipation through its mounting flange. Ensure it is bolted to a steel or aluminum mounting plate of adequate surface area, and maintain ambient temperatures below 40 degrees Celsius in the enclosure.

Does this model include an integrated electromagnetic brake?

No, the standard HF-SP702 model does not feature an integrated brake. For vertical axes or loads requiring a holding brake during power-off states, the HF-SP702B variant must be used.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical 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 .

TECHNICAL SPECIFICATIONS

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Mitsubishi Electric HF-SP702 MELSERVO J3 Series AC Servo Motor