Siemens Sinamics S120 Function Manual page 723

Digital outputs
Signal processing using the digital outputs is shown in the function diagrams listed below.
Properties
● Separate power supply for the digital outputs.
● Source of output signal can be selected by parameter.
● Signal can be inverted by parameter.
● Status of output signal can be displayed
Note
Before the digital outputs can function, their own electronics power supply must be
connected.
Function diagrams (see SINAMICS S120/S150 List Manual)
Control Unit CU310-2:
● 2038 – digital output (DO 16)
TB30:
● 9102 Electrically isolated digital outputs (DO 0 to DO 3)
TM31:
● 9556 Digital relay outputs, electrically isolated (DO 0 and DO 1)
Bidirectional digital inputs/outputs
Signal processing using the bidirectional inputs/outputs is shown in the function diagrams
listed below.
Properties
● Can be parameterized as digital input or output.
● When set as digital input:
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
– as a binector output
– as a connector output
– Six "high-speed inputs" on Control Unit
If these inputs are used, for example, for the "flying measurement" function, they act
as "high-speed inputs" with virtually no time delay when the actual value is saved.
– The properties of the "pure" digital outputs apply.
Basic information about the drive system
12.5 Inputs/outputs
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