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Harmonic Drive System

Harmonic Drive System

Harmonic Drive System

(OP)
Can anyone please explaine to me how to calculate the required input rotation angle of the servo motor to which attached to a harmonic drive, if the harmonic drive output angle at certain angle is required. Thanks

RE: Harmonic Drive System

kuv,

   The harmonic drive you have selected has a reduction ratio, specified in the catalogue.  This should be somewhere between 60:1 and 160:1.  I do not have a catalogue in front of me.

   Assuming you are using it as a speed reducer, you multiply your desired output rotation by the reduction ratio to get the motor rotation.

                     JHG

RE: Harmonic Drive System

For an example if your servo has a encoder with 5000 pulses per revolution it would be 13.888 pulses per degree(5000/360).  If you have a 100:1 reduction on the servo you would need to command a move of 1388.8 pulses to move 1 degree.  Or 500,000 pulses to move 360 degree/1 rev.

In the servo software setup parameters there should be a scaling factor for “user units” so when programming you can enter the destination in degrees instead of calculating it each time.

Barry1961

RE: Harmonic Drive System

(OP)
thanks for the information!

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