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A Appendix
A.2 List of abbreviations
SINAMICS G120C
558 List Manual (LH13), 04/2014, A5E33840768B AA
SPI Serial Peripheral Interface Serial peripheral interface
SPS Speicherprogrammierbare Steuerung Programmable Logic Controller
SS1 Safe Stop 1 Safe stop 1
(monitored for time and ramp)
SS2 Safe Stop 2 Safe stop 2
SSI Synchronous Serial Interface Synchronous serial interface
SSM Safe Speed Monitor Safe feedback from speed monitor
SSP SINAMICS Support Package SINAMICS support package
STO Safe Torque Off Safe torque off
STW Steuerwort Control word
T
TB Terminal Board Terminal Board
TIA Totally Integrated Automation Totally Integrated Automation
TM Terminal Module Terminal Module
TN Terre Neutre Grounded three-phase line supply
Tn - Integral-action time
TPDO Transmit Process Data Object Transmit process data object
TT Terre Terre Grounded three-phase line supply
TTL Transistor-Transistor Logic Transistor-transistor logic
Tv - Derivative action time
U
UL Underwriters Laboratories Inc. Underwriters Laboratories Inc.
UPS Uninterruptible Power Supply Uninterruptible power supply
USV Unterbrechungsfreie Stromversorgung Uninterruptible power supply
UTC Universal Time Coordinated Universal time coordinated
V
VC Vector Control Vector control
Vdc - DC-link voltage
VdcN - Partial DC-link voltage, negative
VdcP - Partial DC-link voltage, positive
VDE Verband Deutscher Elektrotechniker Association of German Electrical Engineers
VDI Verein Deutscher Ingenieure Association of German Engineers
VPM Voltage Protection Module Voltage Protection Module
Vpp Volt peak to peak Volt peak-to-peak
VSM Voltage Sensing Module Voltage Sensing Module
W
WEA Wiedereinschaltautomatik Automatic restart
WZM Werkzeugmaschine Machine tool
X
XML Extensible Markup Language Extensible Markup Language (standard language
for Web publishing and document management)
Abbreviation Source of abbreviation Meaning
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