Harmonic Drive
CHA Series
The CHA Series digital AC hollow-shaft servo actuator, combining precision Harmonic Drive gearing with highly dynamic AC servo motors, offers unique features unsurpassed by conventionally geared drives.
Used in highly demanding industrial servo systems provides precision motion control and high torque capacity in a very compact package.
A HIPERFACE® or Siemens compatible encoder with sinusoidal output signal provides feedback information for the CHA Series Actuator with Sine/Cosine Encoder. The actuator is compatible with a wide variety of currently available digital servo controllers for Sine /Cosine motor feedback systems, e.g. SINAMICS®, SIMODRIVE® and SIMOVERT-MASTERDRIVES® or NUM MDLU. Matching SC-610 digital servo controllers, which can be used for current, speed or position control, are also available from Harmonic Drive AG.
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
- compatible connection to CPU Series
- complete corrosion protection
