Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC627D/827D
Operating Instructions, 09/2014, A5E32990859-AB
35
Connecting 100-240 VAC power supply
Note before connecting the device
Note
The varying voltage power supply module is designed for operation on 120/230/240 V AC
networks. The setting of the voltage range takes place automatically.
Do not connect or disconnect power and data cables during thunderstorms.
Operation only in TN networks
The device is designed for operation in grounded power supply networks (TN networks
according to VDE 0100 Part 100, or IEC 60364-1).
Operation on ungrounded or impedance-grounded power networks (IT networks) is
prohibited.
The permitted nominal voltage of the device must conform with local mains voltage.
Notes on the power supply network
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.
Make sure that the safety power outlet of the building installation is freely accessible and
located as close as possible to the device.
Note
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC guidelines.
Uninterruptible AC power systems (UPS) must
supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs with an active PFC.
UPS characteristics are described and classified in the standards EN 50091
-3 and IEC
-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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