Siemens SINAMICS G130 Engineering Manual page 294

SINAMICS S120 Cabinet Modules
Engineering Information
Furthermore, option K82 supports the concept of simplified cabling for the safety functions Safe Torque Off and Safe
Stop 1 within coordinated drives. A well-planned arrangement of terminals and the associated cables connections
allows a clear and optimised cable routing without cross connections. The arrangement of the modules has been
taken into consideration for the design. The terminal can easily be reached in the lower part of the cabinet.
The voltage of the check-back signal paths can be up to 250 V DC / AC. The following rated operating currents must
be observed when using check-back contacts (-X41: 5+6):
•
AC-15 (according to IEC 60947-5-1):
•
DC-13 (according to IEC 60947-5-1):
Minimum switching capacity: DC 5 V, 1 mA with an error rate of 1 ppm.
Protection: Maximum 4 A (fuse for operation class gL/gG at Ik ≥ 1 kA)
Examples
Drive
control
Customer terminal block
Check lamps if necessary with extra 24 V DC
Example of the connection of option K82 with one CU320 per Motor Module with a central safety switch
The example shows how all Motor Modules in a saftey group can be activated using a centrally-located safety switch.
Due to the terminal configuration and arrangement only one cable must be routed between individual elements.
Inside a cabinet module all connections are pre-wired and the cabinet is therefore ready for connection. The
SIMATIC S7 shown is not necessary and thus only demonstrates a possible connection variant.
SINAMICS Engineering Manual – May 2008
294/396
© Siemens AG
24 V - 230 V = 3 A
24 V = 1 A
110 V = 0.2 A
230 V = 0.1 A
Customer terminal block
Safety switch and
signaling lamp
Front panel on machine
DC link
Customer terminal block
to next panel