Connecting The Device To Power - Siemens SIMATIC Rack PC 547B Operating Instructions Manual

Connecting

6.2 Connecting the device to power

6.2 Connecting the device to power
Note before connecting
Note
The long-range power supply module is designed for operation on 100-240 AC networks. It
is not necessary to adjust the voltage range.
WARNING
Do not connect or disconnect power and data cables during thunderstorms.
WARNING
The device may only be operated on grounded power supply networks (TN systems to
VDE 0100, part 300, or IEC 60364-3).
Operation on ungrounded or impedance-grounded power networks (IT networks) is
prohibited.
WARNING
The permitted nominal voltage of the device must conform with local mains voltage.
CAUTION
The mains connector must be disconnected to fully isolate the device from mains. Ensure
easy access to this area.
A master mains disconnect switch must be installed if the device is mounted in a switch
cabinet. Always ensure free and easy access to the power inlet on the device or that the
safety power outlet of the building installation is freely accessible and located close to the
device.
Note
The power supply contains a PFC (Power Factor Correction) circuit to conform to the EMC
directive.
Uninterruptible AC power systems (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs with a PFC.
UPS characteristics are described and classified in the standards EN 50091-3 or
IEC 62040-3. Devices with sinusoidal output voltage in the normal and buffered mode are
identified with the classification "VFI-SS-...." or "VI-SS-....".
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SIMATIC Rack PC 547B
Operating Instructions, 12/2007, A5E01127519-02