National Instruments NI-Motion User Manual page 291

E
encoder
encoder resolution
F
F
FIFO
filter parameters
filtering
flash ROM
following error
trip point
full-step
G
Gnd
GND
H
half-step
© National Instruments Corporation
Device that translates mechanical motion into electrical signals; used for
monitoring position or velocity in a closed-loop system.
Number of encoder lines between consecutive encoder marker or Z-bit
indexes. If the encoder does not have an index output the encoder resolution
can be referred to as lines per revolution.
farad
first-in, first-out
Indicates the control loop parameter gains (PID gains) for a given axis.
Type of signal conditioning that filters unwanted signals from the signal
being measured.
Type of electrically reprogrammable read-only memory.
Difference between the instantaneous commanded trajectory position and
the feedback position.
Full-step mode of a stepper motor—For a two-phase motor. this refers to
energizing both windings or phases simultaneously.
ground
ground
Mode of a stepper motor—For a two phase motor, this refers to alternately
energizing two windings and then only one. In half step mode, alternate
steps are strong and weak, but there is significant improvement in
low-speed smoothness over the full-step mode.
G-3
Glossary
NI-Motion User Manual