Siemens 6SN1123-1AA00-0DA2 Configuration Manual page 264

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05.01
8.6.2 Function description of the application example
Application
The block diagram, Section 8.6.1 shows an overview of an application example
for a complete drive–related control of a machine with SIMODRIVE 611 drive
components with analog setpoint interface.
For information on versions with SIMODRIVE 611 digital and 611 universal, re-
fer to Section 8.8.
The individual applications and functions of the drive control are described in
detail in the following Section 8.7 using circuit examples =1 to =9.
The circuit examples =1 to =3 are provided for basic machine applications. Cir-
cuit examples =1 and =4 to =9 describe all of the essential functions that are
used for a processing machine/machine tool.
The circuit concept has been designed so that the individual control groups,
from the basic function in circuit example =4
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can be used for the particular applications, graduated from basic up to complex
functions. When expanding the control system, step–by–step, up to the fully
expanded configuration, the terminal jumpers, in the circuit examples, should be
removed (interrupted), and the required interlocking and monitoring circuits in-
serted.
In the application example, Fig. 8-11 the SIMODRIVE 611 drive group com-
prises a 1PH7 main spindle drive and three 1FT5 feed drives as an example for
a machine tool.
The drive–related control essentially includes the safety–relevant, 2–channel
hardware control with the associated PLC functions. The PLC control handles
the coordinated sequence of the drive control through logic operations; however
it does not handle any safety–relevant functions.
The NC/FM (positioning control), with the setpoint and actual value interface as
well as the machine control of the user side, is not discussed in the subsequent
text. This is the reason that they are only depicted from the essential principle.
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© Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
8.6 Application examples with SIMODRIVE 611
Drives on/off/stopping in an emergency situation; start/stop/safe standstill
through additional functions
Operating mode selection, automatic/setup mode with agreement =5
Protective door monitoring with tumbler mechanism =6
Limit switch, limit position monitoring =7
Armature short–circuit braking =8, and
Power contactors in motor circuit =9
Control Category in accordance with EN 954–1
The 2–channel system structure of controls =4 to =6 corresponds, when the
individual components are correctly used, to control Category 3 according to
EN 954–1. This means that if a single fault occurs in the system, then the
safety function must still be kept.
8 Important Circuit Information
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