Rotary drive arrangements for surgical instruments

A surgical instrument, comprising:

• a handle assembly;
• a drive motor operably supported by the handle assembly;
• an elongate shaft assembly operably extending from the handle assembly including a drive shaft assembly operably interfacing with the drive motor and being selectively axially movable between a first position and a second position;
• a surgical end effector rotatably coupled to the elongate shaft assembly for selective rotation relative thereto;
• and
• a rotary transmission operably interfacing with the drive shaft assembly and the surgical end effector such that when the drive shaft assembly is in the first axial position, application of a rotary drive motion to the drive shaft assembly by the drive motor causes the rotary transmission to apply a first rotary control motion to the surgical end effector and when the drive shaft assembly is in the second axial position, application of the rotary drive motion to the drive shaft assembly by the drive motor causes the rotary transmission to apply a second rotary control motion to the surgical end effector.

A rotary drive arrangement for a surgical instrument including a surgical end effector, the rotary drive arrangement comprising:

• a rotary drive system configured to generate rotary drive motions;
• a drive shaft assembly operably interfacing with the rotary drive system and being selectively axially movable between a first position and a second position;
• and
• a rotary transmission operably interfacing with the drive shaft assembly and the surgical end effector such that when the drive shaft assembly is in the first axial position, application of one of the rotary drive motions to the drive shaft assembly by the rotary drive system causes the rotary transmission to apply a first rotary control motion to the surgical end effector and when the drive shaft assembly is in the second axial position, application of the rotary drive motion to the drive shaft assembly by the rotary drive system causes the rotary transmission to apply a second rotary control motion to the surgical end effector.