CG CDN40-012-65, Hardware Manual

Page: 7 / 72

About this documentation
Validity information
1
CG Drives & Automation 3
1.4 Terms and abbreviations used
Term Meaning
Device size Used as generic term for a group of devices which have the same dimensions
(depth, height and width) but different power ratings.
Standard device Used as generic term when actions and features are described which are very
similar or the same for different versions or device sizes, e.g.
•
mechanical installation or
•
power terminals
DU Drive unit
CDN controller
CU Communication unit
Optional interfaces per I/O, fieldbus
WU Wiring unit
Ready−made motor connection, replaces the motor terminal box
Abbreviation Meaning
Cat. Category according to EN 954−1 (valid until 30 November 2009)
Opto supply Optocoupler supply for controlling the drivers
PELV Protective Extra Low Voltage
PWM Pulse Width Modulation
n. c. Terminal not assigned