National Instruments Motion Control 7334 User Manual page 60

Glossary
PWM
PXI
Q
quadrature counts
R
RAM
relative breakpoint
relative position
relative position mode
ribbon cable
RPM
RPSPS or RPS/S
RTR
S
s
servo
stepper
stepper <1..4> Dir
(CCW)
stepper <1..4> Step
(CW)
7344/7334 Hardware User Manual
Pulse Width Modulation—a method of controlling the average current in a
motor phase winding by varying the on-time (duty cycle) of transistor
switches
PCI eXtensions for Instrumentation
the encoder line resolution times four
random-access memory
sets the position breakpoint for an encoder in relative quadrature counts
destination or target position for motion specified with respect to the
current location regardless of its value.
position relative to current position
a flat cable in which the conductors are side by side
revolutions per minute—units for velocity.
revolutions per second squared—units for acceleration and deceleration.
Ready to Receive
seconds
specifies an axis that controls a servo motor
specifies an axis that controls a stepper motor
direction output or counter-clockwise direction control
stepper pulse output or clockwise direction control
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