Mitsubishi HG-KR23 MELSERVO-J4 200W AC Servo Motor

Mitsubishi Electric HG‑KR23 is a low‑inertia, small‑capacity AC servo motor from the MELSERVO‑J4 series, designed for high‑frequency positioning and acceleration/deceleration applications. Rated output 200 W (0.2 kW) at 200 V AC class, 3‑phase. Straight shaft design with built‑in 22‑bit absolute encoder (4,194,304 pulses/revolution) for high‑precision position feedback without battery‑backed homing. IP65 enclosure. 60 mm × 60 mm flange mounting. Natural cooling, no external fan.

Applications:

• High‑frequency positioning in pick‑and‑place and assembly automation

• Semiconductor manufacturing and electronics assembly

• Food processing machinery (e.g., cutting, conveying)

• Printing and packaging machinery for precise motion control

Core Specifications:

• Rated output power: 200 W (0.2 kW)

• Rated current: 1.3 A

• Maximum current: 4.6 A

• Supply voltage: 200 V AC class (3‑phase)

• Rated torque: 0.64 N·m

• Maximum torque: 2.2 N·m (instantaneous)

• Rated rotational speed: 3,000 rpm

• Maximum rotational speed: 6,000 rpm

• Moment of inertia: 0.221 × 10⁻⁴ kg·m²

• Encoder: 22‑bit absolute encoder (4,194,304 pulses/revolution)

• Shaft type: Straight shaft (without key)

• Flange mounting: 60 mm × 60 mm

• Connection: 4‑pin rectangular connector

• Protection rating: IP65 (excluding shaft‑through portion)

• Cooling method: Natural cooling (fanless)

• Ambient operating temperature: 0 °C … +40 °C

Advanced Specifications:

• Power rate at continuous rated torque: 18.3 kW/s

• Permissible instantaneous speed: 6,900 rpm

• Recommended load to motor inertia ratio: ≤ 26 times

• Maximum radial load: 245 N

• Maximum axial load: 98 N

• Insulation class: 130 (B)

• Vibration rank: V10

• Weight: approx. 0.91 kg

• Storage temperature: –15 °C … +70 °C

System Integration:

• This servo motor belongs to the Mitsubishi Electric MELSERVO‑J4 series.

• Compatible servo amplifiers: MR‑J4‑20A (pulse train interface), MR‑J4‑20B (SSCNET III/H interface), and MR‑J4W□‑□□B multi‑axis amplifiers (200 W rating).

• Requires MR‑J4 series compatible servo amplifier for operation.

• For absolute position retention during power‑off, install an MR‑BAT6V1SET battery backup unit.

• For detailed installation, wiring, and parameter setting, refer to the MELSERVO‑J4 Instruction Manual.

Related Products:

• MR‑J4‑20B – 200 W servo amplifier with SSCNET III/H interface

• MR‑J4‑20A – 200 W servo amplifier with pulse train interface

• MR‑J3ENCBL2M‑A1 – Encoder cable, 2 m (standard bending life)

• MR‑PWS1CBL2M‑A1 – Power cable, 2 m

• MR‑BKS1CBL03M‑A – Battery cable for absolute encoder