Siemens SCALANCE XR-500 Operating Instructions Manual page 82

Connecting up
6.7 Signaling contact
Information on the signaling contact
• The signaling contact is a floating switch that signals error states by interrupting the contact.
If an error occurs, the signaling contact opens. In normal operation, the signaling contact is
closed.
• The signaling contact is connected using a 2-pin plug-in terminal block (spring-loaded
terminal). The terminal block is included in the scope of delivery of the device and can be
ordered as a spare part, see section "Spare parts (Page 36)".
• Note the wiring rules (Page 65).
• The signaling contact can be controlled manually via the user interfaces. Information on this
can be found in the Configuration manuals.
Risk of electric shock and property damage due to voltage being too high
The signaling contact can be operated in the voltage range of 19.2 to 31.2 V DC or 19.2 to 30.0
V AC and subjected to a maximum load of 100 mA.
With higher voltages or currents, there is a risk of electric shock and damage to the device.
Position and assignment
The connection is located on the front of the device.
Figure 6-7
Contact
F1
F2
Signaling faults
• The signaling of errors by the signaling contact is synchronized with the fault LED "F", see
section ""F" LED (Page 42)".
All errors that the fault LED "F" indicates (freely configurable) are also signaled by the
signaling contact.
• If an internal fault occurs, the fault LED "F" lights up and the signaling contact opens.
82
WARNING
Position of the signaling contact using a 24 V AC/DC device version with 12 SFP/SFP+ slots
as an example
Assignment
Fault contact 1
Fault contact 2
Operating Instructions, 07/2023, C79000-G8976-C692-01
SCALANCE XR-500