meal, repast(noun) the food served and eaten at one time. meal(noun) any of the occasions for eating food that occur by custom or habit at more or less fixed times. meal(noun) coarsely ground foodstuff; especially seeds of various cereal grasses or pulse.
Encoders turn mechanical motion into an electrical signal that is used by the control system to monitor specific parameters of the application and make adjustments if necessary to maintain the machine operating as desired.
If an encoder is to be mounted to a motor shaft, then a centering tool can be used to align the hole of the encoder to the shaft. The different mounting options have varying functionalities. An R-option allows for a +/- 15 degree play of motion in which the encoder can rotate back and forth.