Examples Of How The Safety Functions Can Be Applied - Siemens SINAMICS G120 Function Manual

Table 2- 3
Standard
EN 954-1
EN ISO 13849-1
EN 61508
2.2

Examples of how the safety functions can be applied

Description of problem
When the emergency stop button is
pressed, a stationary motor must not start
unintentionally.
A central emergency stop button is
designed to prevent more than one drive
from starting unintentionally.
Having opened a protective door, the
machine operator must enter the
hazardous zone around a machine and
run a conveyor belt at low speed.
When a protective door is opened, the
motor must be stationary.
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA
Certification of SINAMICS G120 safety functions
Cat. 3
Cat. 3 / PL d
SIL 2
2.2 Examples of how the safety functions can be applied
Suitable Solution
safety function
STO Activate the inverter via terminals using
an emergency stop button.
STO Evaluate the emergency stop button in a
central control, activate the inverter via
PROFIsafe.
SLS Activate the inverter via terminals using a
button to move the conveyor belt.
SS1 Activate the SS1 function in the inverter
and enable the protective door as soon
as the inverter signals back "Power
removed".
Description
Available with
Control Unit
CU240S DP-F
CU240S PN-F
CU240E-2
CU240E-2 DP
CU240E-2 F
CU240E-2 DP-F
CU240S DP-F
CU240S PN-F
CU240E-2
CU240E-2 DP
CU240E-2 F
CU240E-2 DP-F
CU240S DP-F
CU240S PN-F
17