{"product_id":"mitsubishi-electric-hg-jr703-hg-jr-series-ac-servo-motor","title":"Mitsubishi Electric HG-JR703 HG-JR Series AC Servo Motor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered for demanding industrial motion control, the \u003cstrong\u003eMitsubishi Electric HG-JR703\u003c\/strong\u003e 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 \u003cstrong\u003e22-bit absolute encoder\u003c\/strong\u003e, 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Inertia Design:\u003c\/strong\u003e Provides superior control stability for high-load systems with fluctuating inertia ratios.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Feedback:\u003c\/strong\u003e Integrated 22-bit absolute encoder (4,194,304 pulses\/revolution) for exceptional position accuracy and velocity smoothness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e Class IP67 ingress rating (excluding the shaft pass-through) permits reliable operation in wet or dusty processing environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Compatibility:\u003c\/strong\u003e Fully matched with Mitsubishi MELSERVO-J4 series servo amplifiers (7.0 kW ratings) for rapid commissioning and tuning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eLarge-scale material handling systems and heavy transfer gantries\u003c\/li\u003e\n  \u003cli\u003eHigh-speed industrial printing presses and paper converting machinery\u003c\/li\u003e\n  \u003cli\u003eAutomated press feed systems and heavy metal forming lines\u003c\/li\u003e\n  \u003cli\u003eMulti-axis gantry robots and heavy-duty positioning tables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHG-JR703\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries Name\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHG-JR Series (MELSERVO-J4)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRated Output Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e7.0 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRated Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1500 r\/min\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMaximum Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3000 r\/min\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRated Torque\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e44.6 Nm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEncoder Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e22-bit Absolute Encoder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIP Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP67 (excluding shaft)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 40 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eJapan\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e29.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 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.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDue 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.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eHigh-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.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING: HIGH VOLTAGE \u0026amp; RESIDUAL CHARGE RISK\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eBefore 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eMechanical Alignment:\u003c\/strong\u003e Mount the motor onto a rigid, flat surface. Ensure accurate alignment with the driven shaft using a flexible coupling to prevent radial and axial forces from exceeding the specified bearing limits.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eCable Routing \u0026amp; Strain Relief:\u003c\/strong\u003e Connect the power cable (U, V, W, PE) and the encoder cable, ensuring that there is no tension or sharp bending angles. Securely latch the IP67 connectors to preserve environmental sealing.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eInitial Jog Test:\u003c\/strong\u003e Perform an initial test run in JOG mode without mechanical load coupling to verify correct rotation direction and feedback continuity before executing full automatic cycles.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102128267627,"sku":"HG-JR703","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/hg-jr703-adcsnnv0ep3.png?v=1776137691","url":"https:\/\/www.plcprotech.com\/pt\/products\/mitsubishi-electric-hg-jr703-hg-jr-series-ac-servo-motor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}