Safety
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2.6
Safety instructions to avoid property damage
To avoid damage to your 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 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 section
Technical
data EU5C-SWD-SERCOS gateway
[
}
page 89].
SmartWire-DT Gateway | EU5C-SWD-SERCOS
DOC160805UM01EN | Revision 1 | English | 2017-02 | Released | Public
© Hilscher 2017
