Specifications

Terminology Introduction
Motion controller Q170MCPU/ Q172DCPU/ Q173DCPU 1 - 5
1.3 Terminology
The terms and abbreviations below are important for motion controllers and are used frequently in
this guide.
Direction of rotation of electric motors
The direction (or sense) of rotation of electric motors is defined looking at the end of the motor shaft.
Direction of rotation is described as:
● Clockwise/Reverse
or
● Counterclockwise/Forward
Abbreviations
– FLS Upper stroke limit
– RLS Lower stroke limit
– STOP Stop signal
– DOG Proximity dog
– EMI Emergency signal input
–CW Clockwise
–CCW Counterclockwise
– SSCNET III Optical bus system for data communication
Fig. 1-2: Direction of rotation
Forward rotation (CCW)
Reverse rotation (CW)
Motor