Siemens SINUMERIK 840D sl Commissioning Manual page 342

Appendix
A.2 Small SINAMICS Glossary
Hub
Central connection device in a network with star-shaped topology. A hub distributes
incoming data packages to all connected end devices.
See –> "DRIVE-CLiQ Hub Module Cabinet" (DMCxx)
Line Module
A Line Module is a power component that generates the DC link voltage for one or more –
> "Motor Module"s from a 3-phase mains voltage.
In SINAMICS, the following three types of Line Module are available:
–> "Basic Line Module", –> "Smart Line Module" –> "Active Line Module".
The overall function of an infeed, including the required additional components like –> "Line
Reactor", proportional computing power in a –> "Control Unit", switching devices, etc., is
called –> "Basic Infeed", –> "Smart Infeed", and –> "Active Infeed".
Motor
For the electric motors that can be driven by –> "SINAMICS", a basic distinction is made
between rotary and linear motors with regard to their direction of motion, and between
synchronous and induction motors with regard to their electromagnetic operating principle. In
SINAMICS, the motors are connected to a –> "Motor Module".
See –> "Synchronous Motor" –> "Induction Motor" –> "Built-In Motor" –> "Motor Encoder" -
> "External Encoder" –> "Third-Party Motor".
Motor module
A Motor Module is a power component (DC-AC inventor) that supplies the power for the
connected motor(s).
Power is supplied through the –> "DC Link" of the –> "Drive Unit".
A Motor Module must be connected to a –> "Control Unit" via –> "DRIVE-CLiQ". The open-
loop and closed-loop control functions for the Motor Module are stored in the Control Unit.
–> "Single Motor Module"s and –> "Double Motor Module"s are available.
Motor encoder
A –> "Sensor" (e.g. –> "Resolver", –> "Incremental Sensor TTL/HTL", or –> "Incremental
Sensor sin/cos 1 Vpp" that is integrated in or attached to the motor.
The sensor detects the motor speed. In the case of synchronous motors, it can also detect
the rotor position angle (of the commutation angle for the motor currents).
For drives without an additional –> "Direct Position Measuring System", it is also used as a –
> "Position Sensor" for position control.
In addition to the motor encoders, –> "External Sensor"s for –> "Direct Position Sensing" are
available.
Option slot
Slot for an optional module (e.g. in the –> "Control Unit").
342
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
IBN CNC: NCK, PLC, drive