Mitsubishi HG-SN102J-S100 AC Servo Motor J4

Mitsubishi HG-SN102J-S100 AC Servo Motor for MelServo-J4 Automation

The Mitsubishi HG-SN102J-S100 is a high-performance AC servo motor engineered for the MelServo-J4 series drive platform, delivering precision torque control, reduced operating load, and reliable operation across demanding industrial production environments. Designed to meet the efficiency requirements of modern manufacturing lines, this servo motor integrates seamlessly into Mitsubishi Electric’s closed-loop motion control ecosystem, enabling factories to reduce idle power draw, minimize heat generation, and extend equipment service intervals.

In energy-intensive production environments — from automotive assembly to electronics manufacturing — the HG-SN102J-S100 contributes directly to measurable reductions in per-cycle operating load. Its low-inertia rotor design allows faster acceleration and deceleration profiles, which translates into tighter production line takt times without increasing peak power demand. When paired with the MR-J4-10A servo amplifier, the system achieves dynamic braking energy recovery, feeding regenerative power back into the DC bus and reducing net energy draw during repetitive motion cycles.

The motor’s encoder feedback system provides high-resolution position data to the MR-J4W2-22B multi-axis amplifier, enabling the MELSEC iQ-R series PLC — such as the R04CPU — to execute real-time motion corrections with sub-millisecond latency. This level of closed-loop responsiveness is critical for applications where positional drift leads to material waste or rework, both of which carry hidden energy costs. The RD77MS4 Simple Motion Module further extends multi-axis synchronization capability, allowing the HG-SN102J-S100 to operate in coordinated gantry or conveyor indexing configurations without sacrificing throughput efficiency.

From an condition monitoring perspective, integrating the HG-SN102J-S100 into a system that includes the ME96NSR-MB power monitoring unit allows plant engineers to capture real-time current, voltage, and power factor data at the drive level. This data feeds into the SCADA or MX MESInterface layer, enabling operating load benchmarking per production batch. Facilities pursuing ISO 50001 maintenance planning certification benefit from this granular visibility, as it supports the identification of inefficient operating windows and enables demand-side load shifting.

The HG-SN102J-S100 is also compatible with the GOT2000 series HMI (such as the GT2710-VTBA), which provides operators with live servo status, alarm history, and energy trend visualization on the shop floor. When an abnormal load condition is detected — such as increased friction from a worn bearing or misaligned coupling — the HMI displays predictive maintenance alerts before a failure event occurs, reducing unplanned downtime and the associated unplanned downtime of emergency restarts and production recovery cycles.

For distributed I/O architectures, the motor’s drive system integrates with the NZ2GF2B1-16D CC-Link IE Field Network remote I/O module, enabling centralized control of multiple servo axes from a single MELSEC Q series or iQ-R master station. This network topology reduces wiring complexity, lowers installation labor costs, and supports fast fault isolation — all of which contribute to a leaner, more energy-efficient production infrastructure.

Every HG-SN102J-S100 unit supplied by ZYPLC undergoes pre-shipment functional testing, including no-load run verification, encoder signal integrity check, and insulation resistance measurement. Units are shipped with full documentation and are covered by a warranty terms confirmed during quotation from the date of delivery. Stock is maintained for fast dispatch, supporting both urgent replacement orders and planned maintenance schedules.

Product Specification Table

System Compatibility and Application

The HG-SN102J-S100 is designed to operate as a core actuator within a layered industrial automation system. At the drive layer, the MR-J4-10A servo amplifier manages current regulation and regenerative energy recovery, ensuring that deceleration energy is not dissipated as heat but returned to the shared DC bus. In multi-axis configurations, the MR-J4W3-222B three-axis amplifier allows three HG-SN motors to share a common power supply, reducing peak demand charges and simplifying cabinet thermal management.

At the control layer, the MELSEC iQ-R R04CPU executes high-speed motion programs with cycle times as low as 0.5 ms, enabling the servo system to respond to load disturbances before they propagate into positional error or energy spikes. The RD77MS16 Simple Motion Module coordinates up to 16 axes simultaneously, making it suitable for complex multi-servo applications such as pick-and-place systems, winding machines, and CNC-style cutting equipment.

At the monitoring layer, the ME96NSR-MB power monitoring relay captures energy data at the panel level, while the GOT2000 GT2710-VTBA HMI presents this data to operators in real time. The NZ2GF2B1-16D CC-Link IE Field remote I/O module handles digital signal aggregation from sensors and limit switches distributed across the production line, feeding status data back to the PLC for energy-optimized sequencing logic.

Maintenance and Replacement Notes

In a typical packaging line application, replacing a conventional induction motor drive with the HG-SN102J-S100 and MR-J4 amplifier combination can reduce axis-level operating load by Actual operating results depend on the installed system, load profile, and commissioning parameters. The servo system’s ability to hold position at zero speed without continuous high current draw — unlike a stalled induction motor — is particularly valuable in indexing and clamping applications where dwell time is significant.

In press-fit and assembly applications, the motor’s high-resolution encoder enables force estimation through current monitoring, allowing the control system to detect abnormal resistance early in the press cycle. This capability reduces the incidence of over-press faults, which not only waste energy but also damage tooling and workpieces. Early fault detection, combined with predictive maintenance alerts from the GOT2000 HMI, reduces mean time between failures and keeps overall equipment effectiveness (OEE) at target levels.

For facilities operating multiple shifts, the MELSEC iQ-R PLC can implement operational-efficiency standby modes during scheduled breaks, automatically reducing servo amplifier output and enabling sleep mode on non-critical axes. This programmatic maintenance planning, enabled by the HG-SN102J-S100’s fast restart capability, can contribute to measurable reductions in facility-wide energy bills without impacting production throughput.

ZYPLC maintains ready stock of the HG-SN102J-S100 to support both planned maintenance replacements and emergency breakdown scenarios. All units are sourced through verified supply channels, tested prior to shipment, and backed by a warranty terms confirmed during quotation. Fast global dispatch ensures minimal production downtime for customers across Asia, Europe, and the Americas.

Product Sourcing FAQ

Q1: How much energy can the HG-SN102J-S100 save compared to a conventional induction motor in the same application?
In servo-controlled positioning applications, the HG-SN102J-S100 with MR-J4 amplifier typically achieves Actual operating results depend on the installed system, load profile, and commissioning parameters.

Q2: Is the HG-SN102J-S100 compatible with existing MelServo-J3 series amplifiers?
No. The HG-SN102J-S100 is designed exclusively for the MR-J4 series amplifier platform and uses the SSCNET III/H optical communication interface. It is not backward-compatible with MR-J3 amplifiers. For J3 systems, Mitsubishi offers a migration path using the MR-J4 upgrade kit, which ZYPLC can advise on.

Q3: What is the pre-shipment testing process for this motor?
Each unit undergoes a no-load functional run test to verify smooth rotation and encoder signal integrity, an insulation resistance test between windings and frame, and a visual inspection for mechanical damage. Test records are available upon request. All units are covered by a warranty terms confirmed during quotation from the delivery date.

Q4: Can this motor be used in high-humidity or washdown environments?
The standard HG-SN102J-S100 carries an IP65 rating with an optional shaft seal, making it suitable for environments with water splash and dust ingress. For full washdown applications, consult ZYPLC for availability of enhanced sealing options or alternative HG-series models with higher IP ratings.