Wiring; Rules And Regulations For Operation - Siemens SIMATIC ET 200SP System Manual

Wiring

5.1

Rules and regulations for operation

Introduction
When installing the ET 200SP distributed I/O system as part of a plant or system, special
rules and regulations need to be adhered to depending on the area of application.
This section provides an overview of the most important rules that must be observed for the
integration of the ET 200SP distributed I/O system in a plant or system.
Specific application
Adhere to the safety and accident prevention regulations applying to specific applications, for
example machine protection guidelines.
EMERGENCY STOP devices
EMERGENCY STOP devices in accordance with IEC 60204 (corresponds to DIN VDE 0113)
must remain effective in all operating modes of the plant or system.
Excluding hazardous plant states
Hazardous operating states must not occur when
● the plant starts up again after a voltage dip or voltage failure.
● the bus communication is resumed after a fault.
If necessary, EMERGENCY STOP must be forced!
An uncontrolled or undefined startup must not occur after the EMERGENCY STOP is
unlocked.
Line voltage
Below, everything you need to consider in terms of line voltage is described (refer to section
Information on insulation, protection class, degree of protection and rated voltage
(Page 241)):
● For fixed plants or systems without an all-pole mains disconnection switch, a mains
disconnection device (all-pole) must be available in the building installation.
● For load power supplies, the configured rated voltage range must correspond to the local
line voltage.
● For all power circuits of the ET 200SP distributed I/O system, the fluctuation/deviation of
the line voltage from the rated value must be within the permitted tolerance.
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Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
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