Connection Of Signaling Contact Lines - Belden HIRSCHMANN OZD Modbus Plus G12 Manuel

3 Start-Up
+24 V/48 V
0 V
Error
+24 V/48 V*
Securing
flange
Fig. 12: Operating voltage supply - assignment of 5-pole terminal block

3.6 Connection of signaling contact lines

Floating contacts of a relay are provided as signaling
contact at the 5-pole terminal block.
If the OZD Modbus Plus G12 ... is functioning correctly,
the relay contact is open.
If a fault or power failure occurs, the relay is closed for
at least 500 ms.
The following network and repeater faults can be
signaled at a master station:
Supply voltage
– No voltage supply (with redundant supply: failure of
all supply voltages)
Internal device fault
Received data
– Failure of receiving data at Port 2 and/or Port 3
(e.g. cable breakage)
– Transceiver Port 1 faulty
– No data received at any port for over 500 ms
+24 V/48 V
0 V
Error
+24 V/48 V*
Securing
flange
Fig. 13: Signaling contact - assignment of 5-pole terminal block
42
3.5 Connection of power supply
Limit values of relay contact
– Max. switching voltage
– Max. switching current:
– Max. switching capacity:
The voltage connected to the relay must correspond
to a safety extra-low voltage to IEC 950/EN 60 950/
VDE 0805.
Always ensure that the correct assignment is provided
for the 5-pole terminal block. Make sure that the
connecting leads of the signaling contacts are ade -
quately insulated. Incorrect assignment can result in
destruction of the repeaters.
Secure the terminal block by screwing on the flange
60 VDC; 42 VAC
1.0 A
30 W
Version 04 07/2014