4. Motion Control Instruction Reference zero point of master axis position When the Enable bit of the flying shear instruction is on, the current position of master axis is regarded as the reference zero point of master axis position. Therefore, the reference zero point of master axis position is relative. Reference zero point of slave axis position Slave axis always regards the servo zero point as the reference zero point of its position. Therefore, the reference zero point of slave axis position is absolute. Shear axis The function is to control the shear axis via the sync bit and so the shear axis could be the servo drive, AC motor drive and etc.
Severely speaking, the shear axis is excluded in the flying shear system and so user could design it freely. 4-174 DVP-MC operating manual