Safety Integrated - Industry - Siemens

Ex. No.
5.1
Principle structure of the FC100
Network Function
1 Opens the axis_DB specified using the formal operands
Nr_Axis_DB.
Generates the internal error message.
2 Reads-in the SINAMICS G120 status words, processes
these and saves them in the axis_DB.
3 Resets internal error messages.
4 Converts frequency and torque setpoint from the
axis_DB (entered in x.x %) into the SINAMICS G120
format (hex).
5 Enters SINAMICS G120 error and alarm number into
the axis_DB.
6 Sends control words from the axis_DB to the
SINAMICS G120
Functions of the STEP 7 safety program
The basic programming of Distributed Safety - the S7 programming
tool for F control systems - is not discussed in this
function example.
This function example only explains and discusses the FC201
user block for safety functions.
Program overview
FC201, safety program
The individual safety sensors are read into the FC201,
interlocked with one another (logically combined) and the
SINAMICS G120 safety functions con-trolled.
It is necessary to enter the safety password to process/handle
the FC201. This password is siemens.
484 Functional Example No. SD-FE-I-001-V11-EN
Principle structure of the FC201
Network Function
1 Safe Torque Off (STO)
Reads-in the Emergency Stop pushbutton
Safety_PB_STO (I 24.0), logically interlocked using
the F-Standard block FB215 (F_ESTOP1) and forms
auxiliary lag No_STO.
Acknowledges the safety function using the acknowledge
button Safety_PB_ACK
2 Safe Stop 1 (SS1)
Reads-in the Emergency Stop pushbutton
Safety_PB_SS1 (I 24.1), logically interlocked using
the F-Standard block FB215 (F_ESTOP1) and forms
auxil-iary flag No_SS1
Acknowledges the safety function using the
acknowledge button Safety_PB_ACK
3 Controls the SINAMICS G120 safety function STO
(O 14.0).
4 Controls the SINAMICS G120 safety function SS1
(O 14.1).
5 Controls the SINAMICS G120 safety function SLS
(O 15.0).
6 De-passivates the safety modules.
7 Acknowledges safety communication errors between
the S7-CPU and the SINAMICS G120 using the acknowledge
button Safety_PB_ACK
8 Acknowledges safety communication errors between
the S7-CPU and the safety digital input module
SM326 via the standard input ACK_error (I 0.7).
9 Emergency Stop ok -> standard program.
10 Signal "Emergency Stop acknowledge" -> standard
program.
11 Feedback signal STO from SINAMICS G120 -> standard
program.
12 Feedback signal SS1 from SINAMICS G120 -> standard
program.
13 Feedback signal SLS from SINAMICS G120 -> standard
program.
SINAMICS G120 - parameterizing the safety functions
Refer to page 485: „SINAMICS G120 parameterization“