MACH 4002
Release 1.0 10/05
23
V
Mount the terminal block for both the signal contacts on the front of the
device. Make sure that the snap lock snaps into place.
2.1.10 Connecting the supply voltage, startup procedure
V
The devices may only be connected to the supply voltage shown on the
type plate. Connect the power supply cable and plug it into the mains.
Make sure the cable is not under strain.
Warning!
The DC modules (M4-...-...VDC 300W) are designed for
operation with a safety extra-low voltage. Thus, they may
only be connected to the supply voltage connections with
PELV circuits or alternatively SELV circuits with the voltage
restrictions in accordance with IEC/EN 60950.
The external supply voltage can be connected redundantly (see
). Both inputs are uncoupled. With redundant supply,
the power supply unit alone supplies the device with the higher output
voltage. The supply voltage is electrically isolated from the housing.
The DC modules (M4-...-...VDC 300W) are grounded via a connector of the
3-pin DC socket.
Switching on the slide-in power supply units starts up the device.
Note:
With non-redundant supply of the mains voltage, the device reports a
power failure. You can prevent this message by applying the supply voltage
over the two inputs or by changing the configuration via management.
Note:
The 0V connectors within a DC module (M4-...-...VDC 300W) are con-
nected to each other.
Fig. 5:
Pin assignment of the DC socket (external supply voltage)
0V
+
Summary of Contents for MACH 4002 48+4G
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