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9 Cabinet Design and EMC
9.3 Safety of machinery – safety–related parts of controls according to EN ISO 13849–1:2008
9.3.4
Safety–related circuit infeed modules
Function
9-350
Every line infeed has an integrated main contactor, which can be used for the
Safe Torque Off function (STO).
Line infeed:
S
Uncontrolled: UI module
S
Controlled: I/R module
Integrated
line contactor –K2
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
value of the integrated line contactor: 1,333,333 operating cycles
10d
Service life: 20 years
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Line
supply
Main switch -Q0
U1V1 W1
111
113
213
NS1
FR+
NS2
FR+
9
Start
48
63
IF
64
AF
FR–
64
SIMODRIVE NE
–A10
© Siemens AG 2012 All Rights Reserved
02.12
05.01
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