Digital Inputs - Siemens SITRANS L Compact Operating Instructions
Controllers with ultrasonic transducer inputs
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Also See for SITRANS L:
- Operating instructions manual (269 pages) ,
- Compact operating instructions (61 pages) ,
- Application examples (11 pages)
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5.2.12
Digital inputs
The digital inputs can be powered from the internal DC power supply (terminal 30), or the
they can be powered from an external power supply.
①
②
③
④
Digital inputs used with internal DC power supply
Note
Proper connection for use with internal DC power supply
Terminals 33 and 34 must be connected together.
Digital inputs used with external power supply
SITRANS LT500 with ultrasonic transducer inputs
Compact Operating Instructions, 02/2024, A5E52021877-AA
DC power supply for positive digital inputs
Positive input for digital input 1
Positive input for digital input 2
Common negative for digital inputs
Connecting
5.2 Connecting SITRANS LT500
41
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