Phoenix Contact FL MGUARD RS2000 TX/TX VPN - Page 178

FL MGUARD GT/GT
178
PHOENIX CONTACT 105656_en_05
8.3.4.1 Easy connection of the supply voltage
Signal contact without
VPN enable button
The supply voltage is connected via a terminal block with screw locking, which is located
under the front of the device.
Figure 8-6 Easy connection of the supply voltage/signal contact without VPN enable
button
8.3.4.2 Redundant connection of the supply voltage
Signal contact without
VPN enable button
A redundant supply voltage can be connected. Both inputs are isolated. The load is not dis-
tributed. With a redundant supply, the power supply unit with the higher output voltage sup-
plies the FL MGUARD GT/GT alone. The supply voltage is electrically isolated from the
housing.
If the supply voltage is not redundant, the FL MGUARD GT/GT indicates the failure of the
supply voltage via the signal contact. This message can be prevented by feeding the supply
voltage via both inputs.
Figure 8-7 Redundant connection of the supply voltage/signal contact without VPN en-
able button
OUT
24 V DC
US1 MC1
GND GND
R1 R2
76120025
US1 MC1
GND GND
R1 R2
76120026
OUT 24 V DC