Siemens SINAMICS S120 Commissioning Manual page 151

Control Unit
Central control module in which the closed-loop and open-loop control functions for one or
more -> "SINAMICS" -> "Line Module"s and/or -> "Motor Module"s are implemented.
There are three types of Control Unit:
- SINAMICS Control Units, e.g. -> "CU320"
- SIMOTION Control Units, e.g. -> "D425" and -> "D435"
- SINUMERIK solution line Control Units, e.g. NCU710, NCU720 and NCU730
Double Motor Module
Two motors can be connected to and operated with a Double Motor Module.
See –> "Motor Module" –> "Single Motor Module"
Former term: –> "Double-axis module"
DRIVE-CLiQ
Abbreviation for "Drive Component Link with IQ".
Communication system for connecting the various components in a SINAMICS drive system
(e.g. -> "Control Unit", -> "Line Module"s, -> "Motor Module"s, -> "Motor"s, and
speed/position encoders.
The DRIVE-CLiQ hardware is based on the Industrial Ethernet standard and uses twisted-
pair lines. The DRIVE-CLiQ line provides the transmit and receive signals, as well as the +24
V power supply.
Infeed
Input component of a converter system for generating a DC link voltage to supply one or
more -> "Motor Module"s, including all the required components (e.g. -> "Line Module"s,
fuses, reactors, line filters, and firmware, as well as proportional computing power (if
required) in a -> "Control Unit".
External encoder
Position encoder that is not built in or mounted on the –> "Motor", but is instead fitted outside
via a mechanical transmission element or mechanical intermediate element.
The external encoder (see –> "Externall mounted encoder") is used for –> "Direct position
detection".
Encoder
An encoder is a measuring system that captures actual values for the speed and/or
angular/position values and makes them available for electronic processing. Depending on
the mechanical design, encoders can be integrated in the –> "Motor" (–> "Motor encoder") or
mounted on the external mechanical equipment (– "External encoder"). Depending on the
type of movement, a distinction is made between rotary encoders ("rotary transducers") and
translatory encoders (e.g. - Linear Sensors). In terms of measured value provision, a
distinction is made between –> "Absolute encoders" (code encoders) and –> "Incremental
encoders".
See –> "Incremental encoder TTL/HTL" –> "Incremental encoder sin/cos 1 Vpp" –
> "Resolver".
CANopen interface
Commissioning Manual, (IH2), V2.6, 10/2008 Edition, 6SL3097-2AA00-0BP3
Parameters, faults and alarms, terminology
A.1 Glossary
151