Harmonic Drive FHA-32C-50-H-C1024-SP | Hollow Shaft AC Servo Actuator

Description

Core Product Summary

The Harmonic Drive FHA-32C-50-H-C1024-SP is an integrated, high-precision hollow-shaft AC servo actuator designed for high-torque motion control applications in industrial automation, robotics, semiconductor manufacturing, and precision positioning systems. The actuator combines a brushless AC synchronous servo motor, zero-backlash strain wave gearing (Harmonic Drive component set), a high-resolution C1024 feedback encoder, and a heavy-duty cross-roller output bearing into a single compact housing.

Featuring a 50:1 gear reduction ratio and a central hollow shaft bore, the unit allows wiring, tubing, optical lines, or mechanical shafts to pass directly through the center of the rotating axis. The “H” winding designation supports high DC bus voltage operation (up to 680 VDC), while the integrated C1024 incremental encoder provides precise positional feedback for closed-loop motion control environments.

Key Technical Specifications

Detailed Product Overview

The Harmonic Drive FHA-32C-50-H-C1024-SP integrates motor and gearbox components into a unified motion control system. Traditional rotary drive setups require coupling separate motors, gearboxes, external bearings, and encoders, which increases overall mechanical footprint and compliance. The FHA-C series eliminates these alignment constraints by incorporating zero-backlash strain wave gears directly onto the motor shaft inside a rigid enclosure.

The central 18 mm hollow shaft passage allows pneumatics, power cables, or laser beams to route straight through the axis of rotation. This design prevents cable twisting in continuous rotary joints, such as robotic arm wrists, rotary index tables, and gantry positioning heads. An integrated tilt-resistant cross-roller output bearing absorbs substantial radial and axial loads directly on the output flange.

The H-type motor winding is optimized for pairing with digital AC servo drives operating on high DC bus voltage supplies (up to 680 VDC). Position, velocity, and commutation feedback are tracked via the onboard C1024 incremental encoder, while internal motor winding temperatures are continuously monitored by an integrated KTY 84-130 sensor to prevent thermal overload.

FHA-32C-50-H-C1024-SP

FHA-32C-50-H-C1024-SP

System Compatibility & Integration Requirements

Dimensions, Mounting & Connection Notes

• Hollow Shaft Diameter: 18 mm inner pass-through diameter.
• Weight: 3.2 kg (without holding brake).
• Mounting Configuration: Vertical or horizontal mounting using the output flange and housing bolt pattern. Avoid applying impact forces (such as hammer strikes) during mechanical installation to protect the internal encoder and gear set.
• Thermal Management: Mount against a metallic structure to conduct heat away from the motor frame. Operating ambient temperature range is 0°C to +40°C at 20% to 80% non-condensing relative humidity.
• Wiring & Grounding: Separate motor power cables from signal and encoder lines to minimize electromagnetic interference (EMI). Ensure grounding connections are secured to the housing ground terminal.

FAQ

• What does the full model code FHA-32C-50-H-C1024-SP designate?

  It indicates an FHA series actuator, size 32C frame, 50:1 reduction ratio, H-type high-voltage motor winding, C1024 incremental feedback encoder, and special factory options (SP).

• What is the central hollow shaft diameter on the FHA-32C?

  The internal hollow shaft bore has a diameter of 18 mm.

• What is the maximum torque rating for the 50:1 ratio variant?

  The actuator delivers up to 39 Nm maximum output torque and a continuous stall torque of 17 Nm.

• Which feedback sensor is built into the C1024 model?

  It contains an incremental sine/cosine feedback encoder (C1024 specification).

• What is the degree of environmental protection for the FHA-C series?

  The actuator assembly carries an IP65 protection rating.

• What temperature sensor is integrated into the H-winding actuator?

  The module includes a 1 × KTY 84-130 temperature sensor for monitoring motor winding thermal states.

Documented Performance Data