Interface Modules SWT 3000 Equipment Manual
Page - 10 Edition p3_3_2x 08/09 © SIEMENS AG 2008
Signal output from module IFC-S
The messages are transmitted through relays K5...K12. These relays are identical with those on
module IFC-D. If there are seven relays one changeover contact per relay is brought out. The con-
tact of relay K5 can be used as a make contact or break contact by means of jumper X42. All eight
signal relay contacts have a joint root (3A1).
The excitation voltage P12_R of the relay coils must be enabled by the PU3.
GND
P12_R
K5
GND
K6
GND
K12
D0
D1
D7
K5 - K12 Output relays of module IFC-S
D0 - D7 Operation of the IFCx controller
Figure 10: Block diagram of the output circuit of IFC-S
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