Siemens SCALANCE S602 - Signaling Contact

Description
3.5 Signaling contact
SCALANCE S
18 Commissioning and Hardware Installation Manual, 05/2016, C79000-G8976-C266-06
Image 3-2 Power supply for SCALANCE S627-2M
3.5
Signaling contact
Note
The signaling contact can be subjected to a maximum load of 100 mA (safety extra
-low
voltage (SELV), DC 24 V).
Never connect the signaling contact of the SCALANCE S to AC voltage or to DC voltage
higher than 32 VDC. The polarity of the connectors is irrelevant.
The signaling contact is connected to a 2-pin plug-in terminal block. The signaling contact is
a floating switch with which error/fault states can be signaled by breaking the contact.
The following errors/faults can be signaled by the signaling contact:
● Fault in the power supply
● Internal fault
If a fault occurs or if no power is applied to the SCALANCE S, the signaling contact is
opened. In normal operation, the signaling contact is closed.
Image 3-3 Signaling contact for SCALANCE S627-2M