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I15007_en_02
1.3.4
Connecting the supply voltage
WARNING: The mGuard rs4000/rs2000 is designed for operation with a DC voltage of
11 V DC ... 36 V DC/SELV, 1.5 A, maximum.
Therefore, only SELV circuits with voltage limitations according to EN 60950-1 may be
connected to the supply connections and the signal contact.
The supply voltage is connected via a plug-in screw terminal block, which is located on the
top of the device.
P1
mGuard rs4000
+24 V 0 V
Figure 1-4
Connecting the supply voltage
The mGuard rs4000 has a redundant supply voltage. If you only connect one supply volt-
age, you will get an error message.
•
Remove the plug-in screw terminal blocks for the power supply and the service con-
tacts.
•
Do not connect the service contacts to an external voltage source.
•
Wire the supply voltage lines with the corresponding screw terminal block (P1/P2) of
the mGuard. Tighten the screws on the screw terminal blocks with 0.5 ... 0.8 Nm.
•
Insert the screw terminal blocks into the intended sockets on the top of the mGuard (see
Figure 1-4).
Status LED P1 lights up green when the supply voltage has been connected properly. On
the mGuard rs4000, the status indicator P2 also lights up if there is a redundant supply volt-
age connection.
The mGuard boots the firmware. Status STAT LED flashes green. The mGuard is ready for
operation as soon as the Ethernet socket LEDs light up. Additionally, status LEDs P1/P2
light up green and the status STAT LED flashes green at heartbeat.
Redundant voltage supply (mGuard rs4000)
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 mGuard rs4000 alone. The supply voltage is electrically isolated from the housing.
If the supply voltage is not redundant, the mGuard rs4000 indicates the failure of the supply
voltage via the signal contact. This message can be prevented by feeding the supply volt-
age via both inputs (P1/P2) or by installing an appropriate wire jumper between connections
P1 and P2.
mGuard rs2000
P2
+24 V 0 V
Innominate Security Technologies
mGuard rs4000/rs2000
P1
+24 V 0 V
19
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