Interface module
7.2 Interface module SB60
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
183
Voltage supply on SIMATIC side
The SIMATIC TDC voltage supply is fed to terminal X3:
Voltage on SIMATIC TDC side
1P
+24 V
Connect the cables using accessory kit SM11 "Power supply connector for interface
modules" (article number: 6DD1680-0BB0) The maximum conductor cross-section at
terminal X3 is 2.5 mm².
Note
When wiring the supply voltage, observe the “Installation and EMC Directives” chapter in the
User Manual.
Safe electrical isolation is guaranteed only between the inputs and outputs
The system side (rack including 24V power supply) is safely isolated from dangerous
voltages on plant side (8 output signals).
The input circuits are only galvanically isolated.
The input circuits on plant side are only isolated galvanically. Circuits consisting of
combinations of safety extra-low voltage and hazardous voltages are not allowed.
The voltage supply (1P, 1M) on SIMATIC side is displayed by a green LED (P).
The supply voltage on SIMATIC TDC side (1P, 1M) is short-circuited (fault).
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