Safety
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SmartWire-DT Gateway | EU5C-SWD-POWERLINK
DOC130802UM02EN | Revision 2 | English | 2013-12 | Released | Public
© Hilscher 2013
2.6
Safety Instructions to Avoid Property Damage
To avoid damage to your EU5C-SWD-POWERLINK Gateway or your
communication system, you must read, understand and follow the following
safety instructions and all safety instructions and warnings in this manual
concerning property damage, before you install and operate the gateway.
2.6.1
General Safety Instructions Concerning Supply Voltage
In safety-relevant applications the power supply providing power to the
SmartWire-DT system must feature a PELV power feed module
(protective extra low voltage).
Switch off the power supply if you are reconnecting slaves in the
SmartWire-DT system or reconnecting the ribbon cable connection.
Otherwise the SmartWire-DT slaves can be destroyed!
The gateway has protection against polarity reversal for the 24-V-DC-
POW supply. However, if the gateway is connected via the serial
interface to an earthed device (for example to a PC), the gateway can be
destroyed, if the polarity of the power supply is reversed!
The functional earth (FE) must be connected to the protective earth (PE)
or to the potential equalization. The system installer is responsible for
implementing this connection.
Connecting cables and signal lines should be installed so that inductive
or capacitive interference does not impair the automation functions.
Suitable safety hardware and software measures should be
implemented for the I/O interface so that a line or wire breakage on the
signal side does not result in undefined states in the automation devices.
2.6.2
Device Destruction by Exceeding Allowed Supply Voltage
The EU5C-SWD-POWERLINK Gateway must only be operated with the
specified supply voltage.
Make sure that the limits of the allowed range for the supply voltage are
not exceeded. A supply voltage above the upper limit can cause severe
damage of the gateway!
A supply voltage below the lower limit can cause malfunction of the
gateway!
Ensure a reliable electrical isolation of the low voltage for the 24 volt
supply. Only use power supply units complying with IEC 60364-4-41
(VDE 0100 Part 410) or HD 384.4.41 S2.
The allowed range for the supply voltage is indicated in the
Technical Data
EU5C-SWD-POWERLINK Gateway
section on page 67.
