Harmonic Drive

FHA-C series

The FHA-C series digital AC hollow-shaft servo actuator, combining precision Harmonic Drive gearing with highly dynamic AC servo motors, offer unique features unsurpassed by conventionally geared drives. Used in highly demanding industrial servo systems they provide precision motion control and high torque capacity in a very compact package. A HIPERFACE® or Siemens compatible encoder with sinusoidal output signals provides feedback information for the FHA Series Actuator with Sine/Cosine Encoder. The actuator is compatible with a wide variety of currently available digital servo drives for Sin/Cos motor feedback systems, e.g.  SINAMICS^®, SIMODRIVE^®, SIMOVERT-MASTERDRIVES or NUM MDLU. Matching SC-610 digital servo control units, which can be used for current, speed or position control are also available.

Advantages

• Backlash-free precision gear
• Hollow shaft from 18 mm to 45 mm
• Transmission accuracy < 60 arcsec
• Repeatability < ± 6 arcsec
• Sine-commutated AC hollow-shaft motor
• Motor winding for 320 VDC / 600 VDC
• Winding temperature monitoring via temperature sensor
• High capacity and high stiffness cross roller bearing
• Sine/cosine-encoder for use with SINAMICS^®, SIMODRIVE^® and SIMOVERT MASTERDRIVES MC
• HIPERFACE®- encoder for operation with Harmonic Drive® servo controller SC-610 or a variety of further servo controllers (NUM, CT, Danaher Motion, Elau, etc.)
• Good controllability even at low speed
• Compared with the previous FHA-B the new FHA-C series has the following additional features:
• higher maximum torque
• more compact design
• higher torsional stiffness
• higher maximum speed