List of abbreviations
Installation and Operating Instructions SINAMICS G180
212
Operating Instructions, 02/2019, 4BS0751-007
NC
"Normally Closed", NC contact
NO
"Normally Opened", NO contact
LSC
Line-side converter
NRTL
"Nationally Recognized Testing Laboratory": American testing facilities that provide product safety testing and
certification services to manufacturers
NYY,
NYCWY
Cable types
PCB
polychlorinated biphenyls: toxins. Relevant for the disposal.
PELV
"Protective Extra Low Voltage", protective extra-low voltage (PELV). previously function extra-low voltage with
safe isolation
PMM
permanent magnet machine
PERM
Permanent-magnet synchronous motors
PCS
Process control system
PPO
Parameter process data object: Part of a PROFIBUS profile
PTC
"Positive Temperature Coefficient", Positive Temperature Coefficient: PTC thermistor
RS 232,
RS 485,
RS 422
standards for serial interfaces
RTU
"Remote Terminal Unit": Remote terminal unit
SELV
"Safety Extra Low Voltage": Safety extra low voltage
PLC
Programmable Logic Controller
STW
Control word
Sub-D
Actually "D-Sub": common type of a connector system for data connections
SVC
"Space Vector Control": space vector modulation, a technique to control rotating electrical machinery based
on pulse width modulation.
TCP
"Transmission Control Protocol": a network protocol
TÜV
"Technischer Überwachungsverein": A body that carries out technical safety checks as prescribed by national
laws or regulations
UL
"Underwriters Laboratories": certification organization for product safety in the USA
USB
"Universal Serial Bus": Serial bus system
UPS
Uninterruptible power supply
VDE
Association for Electrical, Electronic & Information Technologies
De-
ionized
water
Fully de-ionized water
ZLU
Supplementary supply agreements for inverter drives in power plants
ZSW
Status word
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