22 Introduction to the manual
FEPL-01 FEPL-01 Ethernet POWERLINK adapter module
FIO-01 Optional digital I/O extension module
FIO-11 Optional analog I/O extension module
Flat-PLS Rittal Flat-PLS, a busbar system for standard, commercially available flat bars
FLON-01 Optional L
ONWORKS® adapter module
FPBA-01 Optional PROFIBUS DP® adapter module
Frame (size) Refers to power modules that share a similar mechanical construction, for
example:
• diode supply modules of frame D7T or D8T
• frame 2×R8i includes two size R8i inverter modules.
To determine the frame size of a component, refer to the rating tables in
chapter Technical data.
FSCA-01 Optional Modbus/RTU adapter module
FSO-xx Safety functions module for inverter modules
Generic enclosure Parts that are labeled suitable for generic enclosures are not designed for any
specific enclosure system. These parts are intended as a basis for further
engineering, and may require modifications and/or additional parts to be fully
usable.
Installation accessories designed for generic enclosures are in fact designed
for an inside width of 50 mm less than the nominal width of the enclosure. For
example, a mechanical kit intended for 800 mm wide generic enclosure is
designed for an inside width of 750 mm, and will not fit a 800 mm wide Rittal
TS 8 enclosure.
I/O Input/Output
ICU In cabinet-installed drives, ICU is the incoming unit (cubicle) which contains
main circuit breaker and the busbars for the input power cable.
IGBT Insulated gate bipolar transistor
Intermediate circuit See DC link.
INU Inverter unit
Inverter Converts direct current and voltage to alternating current and voltage.
Inverter module Inverter bridge, related components and drive DC link capacitors enclosed
inside a metal frame or enclosure. Intended for cabinet installation.
Inverter unit Inverter module(s) under control of one control board, and related components.
One inverter unit typically controls one motor. See Inverter module.
Main contactor Electrically-controlled main switching device
Main switch-
disconnector
Manually-controlled main switch/disconnector
Multidrive Drive for controlling several motors which are typically coupled to the same
machinery. Includes one supply unit, and one or several inverter units.
Parameter User-adjustable operation instruction to the drive, or signal measured or
calculated by the drive
PLC Programmable logic controller
RDCO-0x Optional DDCS communication module
Term/Abbreviation Description
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