SCALANCE XR-300WG
Operating Instructions, 05/2017, C79000-G8976-C454-01
35
Safety when connecting up
Safety notices
When connecting up the device, keep to the safety notices listed below.
If using power sources according to NEC Class 2 or LPS, please note the following
information:
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a
Limited Power Source (LPS).
This means that only SELV / LPS complying with IEC 60950-1 / EN 60950-1 / VDE 0805-1
must be connected to the power supply terminals, or the power supply unit for the
equipment power supply must comply with NEC Class 2, as described by the National
Electrical Code (r) (ANSI / NFPA 70).
If the equipment is connected to a redundant power supply (two separate power supplies),
both must meet these requirements.
Do not press the RESET button if there is a potentially explosive atmosphere.
Do not remove or replace while circuit is live when a flammable or combustible atmosphere
is present.
Note
No light power measurement (PROFINET diagnostics)
The devices do not support diagnostics with light power measurement.
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