Relays; Synchronization - 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 (106 pages) ,
- Application examples (11 pages)
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Connecting
5.2 Connecting SITRANS LT500
5.2.7
Relays
Relay contacts are shown in the de-energized state. All relays are handled identically and can
be configured as positive or negative logic using parameter Polarity 2.4.6.14 (per relay).
Relay ratings
• Four Form A, NO relays (1, 2, 4, 5)
• Two Form C, NO or NC relays (3, 6)
• 5A at 250 V AC, non-inductive
Note
Power failure
• All relays will fail in their de-energized states. Relays 1, 2, 4, and 5 are normally open and
will fail open.
• Relays 3 and 6 can be wired either normally open or normally closed.
5.2.8
Synchronization
38
SITRANS LT500 with ultrasonic transducer inputs
Compact Operating Instructions, 02/2024, A5E52021877-AA
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