Launch of the Mini Actuator by Harmonic Drive, Complete with Integrated Servo Drive
PEABODY, Massachusetts This week, abb low harmonic drive LLC, a company that specialises in the creation of high-precision motion control systems, announced the release of new FHA micro actuators that come equipped with an integrated servo drive. The business claims that their FHA-C Mini series eliminates the requirement for an external motor, significantly improves wiring, and maintains high positioning accuracy and torsional rigidity in a housing that is significantly smaller than previous models.
According to a statement released by Harmonic Drive, the small actuators contribute to the delivery of high torque with "excellent accuracy and repeatability." An integrated servo drive version that makes use of CANopen communication is now a member of the family and is available to purchase. Only four wires are required for the device because it communicates using CANopen. These cables are labelled CANH, CANL, +24DC, and 0VDC. In addition, a single-turn 14-bit (16384 cpr) gear output sensing encoder and a single-turn 15-bit (32768 cpr) motor input sensing encoder have been incorporated into the device. Both of these encoders are single-turn. According to Harmonic Drive, a recipient of the RBR50 2019 accolade, this enables the creation of a true absolute encoder that does not need for the use of a battery anywhere throughout the output's whole rotational range.
Added benefits and capabilities
According to Harmonic, its engineering team was able to incorporate additional features and capabilities without significantly increasing the size or the weight of the actuator. The following are some of the key features of the FHA-C Mini:
Actuator + integrated servo drive employing CANopen communication
24VDC nominal +7-28VDC supply voltage range
Only four wires are required for the single cable, which are labelled CANH, CANL, +24VDC, and 0VDC.
Zero backlash
Dual absolute encoders
Connectors for panel mounting with four different exit choices
Output sensing encoder 14-bit (16384 cpr) resolution
Input sensing encoder 15-bit (32768 cpr) resolution
Control modalities such as torque control, velocity control, and position control are referred to as CSP, CSV, and CST respectively.
Software called Harmonic Drive HDL
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