26 Introduction to the manual
Inverter Converts direct current and voltage to alternating current and voltage.
IT system Type of supply system that has no (low-impedance) connection to
ground/earth.
LRFI Series of optional EMC filters
LSW Least significant word
Macro Pre-defined default values of parameters in drive control program. Each
macro is intended for a specific application. See Parameter.
MFDT-01 FlashDrop, a tool for configuring an unpowered drive
MMP Manual motor protector
MPOT Potentiometer module
MPOW Auxiliary power extension module
MREL Relay output module
MSW Most significant word
MTAC Pulse encoder interface module
MUL1-R1 Option kit for R1 frame sizes for compliance with NEMA 1
MUL1-R3 Option kit for R3 frame sizes for compliance with NEMA 1
MUL1-R4 Option kit for R4 frame sizes for compliance with NEMA 1
Parameter User-adjustable operation instruction to the drive, or signal measured or
calculated by the drive
PLC Programmable logic controller
PMSM Permanent magnet synchronous motor
PROFIBUS,
PROFIBUS DP,
PROFINET IO
Registered trademarks of PI - PROFIBUS & PROFINET International
R1, R2, ... Frame (size)
RCD Residual current device
Rectifier Converts alternating current and voltage to direct current and voltage.
RFI Radio-frequency interference
RTU Remote terminal unit
SIL Safety integrity level. See Appendix: Safe torque off (STO) on page 417.
SREA-01 Ethernet adapter module
STO Safe torque off. See Appendix: Safe torque off (STO) on page 417.
TN system Type of supply system that provides a direct connection to ground/earth.
Term/abbreviation Explanation
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