9
05.01
9.3 Safety of machinery – safety–related parts of controls according to EN ISO 13849–1:2008
9-350
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
9.3.4
Safety–related circuit infeed modules
Every line infeed has an integrated main contactor, which can be used for the
Safe Torque Off function (STO).
U1V1 W1
Line
supply
Main switch -Q0
Line infeed:
S
Uncontrolled: UI module
S
Controlled: I/R module
111
113
213
NS1
NS2
9
48
63
64
64
FR+
FR+
Start
IF
AF
FR–
SIMODRIVE NE
Integrated
line contactor –K2
–A10
Fig. 9-11
Line infeed control line contactor, block diagram
The internal circuit of the line contactor via terminal 48 is shown symbolically.
The control logic of the line and pre–charging contactors has a somewhat com-
plex design, in order to guarantee a defined switch–on and switch–sequence.
Before interrupting the connection NS1–NS2, the line contactor must always be
opened via terminal 48, or must be opened at the same time. The jumper bet-
ween NS1 and NS2 when the unit is shipped must be removed.
B
10d
value of the integrated line contactor: 1,333,333 operating cycles
Service life: 20 years
Function
9 Cabinet Design and EMC
02.12