Function Description Of The Application Example - Siemens SIMODRIVE 611 digital Configuration Manual

8 Important Circuit Information
8.6 Application examples with SIMODRIVE 611
8.6.2

Function description of the application example

Application
8-264
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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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Drives on/off/stopping in an emergency situation; start/stop/safe standstill
through additional functions
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Operating mode selection, automatic/setup mode with agreement =5
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Protective door monitoring with tumbler mechanism =6
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Limit switch, limit position monitoring =7
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Armature short–circuit braking =8, and
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Power contactors in motor circuit =9
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. 8-13 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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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.
SIMODRIVE 611 Configuration Manual (PJU) – 05/2008 Edition
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