Siemens SCALANCE XR-500 - Page 82

Information on the signaling contact
• The signaling contact is a 󹪞oating 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 Con󹪝guration manuals.
WARNING
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 Position of the signaling contact using a 24VAC/DC device version with 12 SFP/SFP+ slots
as an example
Contact Assignment
F1 Fault contact 1
F2 Fault contact 2
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 con󹪝gurable) are also signaled by the
signaling contact.
• If an internal fault occurs, the fault LED "F" lights up and the signaling contact opens.
Connecting up
6.7Signaling contact
SCALANCE XR-500
82 Operating Instructions, 07/2023, C79000-G8976-C692-01