Singleturn measurement value recording
Singleturn absolute value encoders resolve the position within a rotation and then restart at 0.
Through a singleturn encoder, a coded position value is assigned to every angle position. That means, the angle of rotation within a rotation is known.
Before the axis may be driven in position loop operation, a homing cycle in the drive must be called up for the singleturn encoder. The required homing mark of the encoder is formed in the drive controller.
(See document Function description'Homing cycle')
For the absolute position to remain known after several rotations, the rotations must also be counted by the controller. The controller must save this value at switch-off. It must also be ensured that the measurement system is not readjusted after switch-off.