Phoenix Contact RFC 4072S, Руководство пользователя

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For your safety
108580_en_02 PHOENIX CONTACT
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1.7 Electrical safety
Direct/indirect contact Protection against direct and indirect contact according to VDE 0100 Part 410 (IEC 60364-
4-41) must be ensured for all components connected to the system. In the event of an error,
parasitic voltages must not occur (single-fault tolerance). This also applies to devices and
components with dangerous contact voltages that are permanently connected to the net-
work and/or diagnostic interfaces of the devices used.
This requirement can be met by:
– Using power supplies with safe isolation (PELV)
– Decoupling circuits that are not PELV systems using optocouplers, relays, and other
components that meet the requirements of safe isolation.
Safe isolation Only use devices with safe isolation if dangerous contact voltages can occur at their con-
nections during normal operation or as a result of an insulation error.
Power supply
Insulation rating When selecting the equipment, please take into consideration the dirt and surge voltages
that may occur during operation.
The RFC 4072S is designed for overvoltage category III (according to DIN EN 60664-1). If
you expect surge voltages in the system, which exceed the values defined in overvoltage
category III, take into consideration additional measures for voltage limitation.
DC distribution network DC distribution network according to IEC 61326-3-1:
A DC distribution network is a DC power supply network that supplies a complete industrial
hall with DC voltage and to which any device can be connected. A typical system or machine
distribution is not a DC distribution network. For devices that are provided for a typical sys-
tem or machine distribution, the DC connections are viewed and tested as I/O signals
according to IEC 61326-3-1.
When using an RFC 4072S in a DC distribution network, install appropriate surge protection
(e.g., PT 2+1-S-48DC/FM, Order No. 2817958) directly before the device.
WARNING: Hazardous shock currents and the loss of functional safety
Disregarding instructions for electrical safety may result in hazardous shock currents and
the loss of functional safety.
In order to ensure electrical safety, please observe the following points.
WARNING: Loss of electrical safety and the safety function when using unsuitable
power supplies
The RFC 4072S is designed exclusively for protective extra-low voltage (PELV) operation
in accordance with EN 60204-1. Only PELV in accordance with the listed standard may
be used for the supply.
The following applies to the PROFINET network and the I/O devices used in it:
Only use power supplies that meet EN 61204 and feature safe isolation and PELV accord-
ing to EN 50178/VDE 0160 (PELV). These prevent short circuits between primary and
secondary sides.