General Connection Information - Siemens SIMATIC 577 Operating Instructions Manual

1.6.2 Connecting the power supply (110 / 230 V AC)

General connection information

Note the following in order to operate the device safely and according to regulation:
Note
Voltage range
The varying voltage power supply module is designed for operation on 110 to 230 V AC
networks. It is not necessary to adjust the voltage range.
Notice
Risk of damage
Do not connect or disconnect power and data cables during thunderstorms.
Notice
Power supply systems
The device is designed for operation on grounded power supply systems (TN systems to
VDE 0100, Part 300, or IEC 60364-3).
It is not designed for operation on ungrounded or impedance-grounded power systems (IT
systems).
Notice
Permitted mains voltage
The permitted nominal voltage of the device must conform with the local mains voltage.
Notice
Power disconnection
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 control
cabinet.
Always ensure free and easy access to the power inlet on the device or that the grounding
outlet of the building installation is freely accessible and located close to the device.
SIMATIC Panel PC 577
Operating Instructions, Release 04/2006, A5E00795255
Operating Instructions (compact)
1.6 Connecting
1-13