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Terms and abbreviations used
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EDS84DG752 EN 5.0
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 t erminals
DU Drive unit
8400 motec controller
CU Communication unit
Optional interfaces per I/O, fieldbus, safety system
WU Wiring unit
Ready-made motor connection, replaces the motor terminal box
Abbreviation Meaning
24O 24 V voltage supply for non-safe monitoring
Cat. Category according to EN 954-1 (valid until 30 November 2009)
DO Non-safe feedback output
F-PLC Safety PLC
GSDML File containing device-specific data to establish PROFINET communication
GSE File containing device-specific data t o establish PROFIBUS communication
OFF state Signal status of the safety sensors when they are activated or respond
ON state Signal status of t he safety sensors during normal operation
Opto supply Optocoupler supply for controlling the drivers
OSSD Output Signal Switching Device, tested signal output
PELV Protective Extra Low Voltage
PL Performance Level according to EN ISO 13849-1
PM P/N switching signal paths
PP P/P switching signal paths
PS PROFIsafe
PWM Pulse Width Modulation
S-Bus Safety bus
SD-In Safe input (Safe Digital Input)
SD-Out Safe output (Safe Digital Output)
SELV Safety Extra Low Voltage
SIA, SIB Safe Input, channel A or B, respectively
SIL Safety Integrity Level according to IEC 61508
SO Integrated safety option
n. c. Terminal not assigned
Abbreviation Safety function
STO SafeTorqueOff
Former designation: safe standstill
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