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
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