Rotary Servo Motors
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Filter in catalog →Frequently asked questions
What drive systems are compatible with the HF-RFS203B?
The HF-RFS203B works with Mitsubishi servo drives in the MR-J series (MR-J3, MR-J3-B, MR-J4) and the MELSERVO system. Compatibility depends on connector type and parameter settings.
What is the rated torque output?
Rated continuous torque is approximately 0.64 N·m at rated speed (3000 rpm). Peak torque can reach 1.9 N·m for short durations.
Does it include an encoder?
Yes, the HF-RFS203B includes an integrated incremental encoder with 2048 pulses per revolution for precise speed and position feedback.
What is the operating temperature range?
Standard operating temperature range is 0°C to 40°C ambient. With thermal management, can operate up to 50°C.
Is the HF-RFS203B still in production?
The HF series is considered legacy; Mitsubishi recommends newer series like HC or HA for new designs. However, stock and used units remain available.
What mounting options are available?
Standard foot-mounted configuration with metric M6 bolt holes. Flange coupling connection at the motor shaft for drive transmission.